Ceragon Exercise Handbook v2.4

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Trainee Name:

Exercise BookVersion 2.4

Avner Baruch, Ceragon Training Manager


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Contact: [email protected]

Ceragon Training

Exercises HandbookIP-10 / IP-10F / IP-10G Series

Setups & Scripts

Version 2.4

Avner Baruch

Ceragon Training Manager

October 2010


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Important NoteThis book includes exercise steps explaining how to configure the IP-10 series

IDUs. It does not include feature descriptions, processes or procedures.

The information enclosed in this book should be regarded as a complementary

reference to the course handbook which includes all the relevant presentations

and associated documentation.

Users are advised to correlate these exercises with the theoretical modules

enclosed in a Course Handbooks.


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Table of Content

Chapter 1: Automatic State Propagation Page 5

Exercise #1: Local LOC with ASP ON, Single Pipe, SFP

Exercise #2: Local LOC with ASP OFF, Single Pipe, SFP

Exercise #3: Remote Fault with ASP OFF, Single Pipe, SFP

Exercise #4: Local LOC with ASP ON, Single Pipe, RJ45

Exercise #5: Local LOC, ACM, ASP ON, Managed, SFP

Chapter 2: Basic L2 Maneuvers Page 11

Exercise #1: VID Queuing

Exercise #2: P-Bit Queuing

Exercise #3: HRR as Egress Scheduling

Exercise #4: IP-ToS (Precedence) Queuing

Exercise #5: IP-ToS over VLAN P-Bits Queuing

Exercise #6: VLAN P-Bits over IP-ToS Queuing

Exercise #7: Applying an Egress Shaper

Exercise #8: Applying an Egress Shaper with HRR

Exercise #9: Applying a Policer

Exercise #10: Queuing MACs

Chapter 3: QoS using Video Streaming Page 25

VLC Server Setup

VLC Client Setup

Exercise #1: QoS using VLC Media Player

Chapter 4: QoS in a RING topology using RSTP Page 35

Introduction and guidelines

Exercise #1: In Band set to Strict Priority, User data @ HRR

Exercise #2: In Band set to Strict Priority, User data @ All Queues SP Exercise #3: ACM triggers a Switchover

Chapter 5: CFM in a RING topology using RSTP Page 45

Setup diagram & Introduction

Exercise #1: CFM in an RSTP RING


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Table of Content - Continued

Chapter 6: Cross Polarization Interference Cancellation Page 51

Exercise #1: Setting up XPIC

Exercise #2: Transmitting & Monitoring Traffic via XPIC

Chapter 7: Link Aggregation Page 57

Exercise #1: Unbalanced Traffic Exercise #2: Unbalanced Traffic

Exercise #3: Balanced Traffic

Exercise #4: ACM to trigger LAG switchover

Chapter 8: TDM Cross Connections Page 65

Exercise #1: STAR topology

Exercise #2: STAR topology + In Band

Exercise #3: STAR topology + In Band + (1+1) Protection

Exercise #4: STAR topology + In Band + (1+1) Protection + ACM

Exercise #5: RING topology Exercise #6: RING topology + TDM / SDH XC

Chapter 9: Synchronizing ETH Networks using TDM Clock Page 85

Exercise #1: Setup

Exercise #2: Trail Configuration

Exercise #3: SyncE Configuration


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Chapter 1:

Automatic State Propagation


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Required Setup

N2X traffic generator*

2 IP-10R1/IP-10G IDUs

2 ODUs

1 Test kit (2 30 dB attenuators, SMA cable, 2 RF to WG adaptors)

Variable Attenuator

PC (EMS)

2 ETH straight cables / or FO with SFPs installed in IP-10

2 ETH Cross Cables

* Any traffic generator may be in use as long as it supports the following features:

L2 802.1p/q

L3 ToS / DSCP Multiple streams

SFP GbE / RJ45 GbE

RJ45 FE

Guidelines

1. Establish a single link system

2. Set switch mode to Managed Switch on both IDUs

3. Assign a radio script as shown in diagram below

4. Make sure radio properties provide optimal capacity (RSL ~ -45dBm, MSE< -36dB)

5. Configure out of band management

6. Disable all TDM/auxiliary channels

7. Configure the N2X traffic generator to generate streams as shown below. 2 Main streams

(60Mbps) are transported from Left IDU to Right IDU. Secondary streams (1Mbps) are

transported from Right IDU to Left IDU.

8. Make sure you configure the exact parameters as depicted in each step.

9. It is strongly recommended to follow the exercises in the order of appearance.


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Setup Diagram & Configuration

Variable attenuator

N2X (Traffic Generator) settings

Left IDU

Stream VIDMAC

P-BitSA DA

S1 100 00:8f:20:01:01:02 00:8f:20:00:00:02 0

Right IDU

Stream VIDMAC

P-BitSA DA

S2 100 00:8f:20:00:00:02 00:8f:20:01:01:02 1

Radio Script = ACM 42Mbps, 7MHz, 256QAM

N2X

S1 = 15 Mbps @64 bytes S2 = 15 Mbps

1 1 8 8


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Exercise #1: Local LOC with ASP ON, Single Pipe, SFP

In this exercise we simulate local LOC propagation triggered by Link ID mismatch

1. Set both IDUs to Single Pipe2. Set traffic streams to lower rate than radio capacity (as depicted in diagram)3. Use GbE Optical ports (SFPs)4. Set management to In Band, VID 40005. Enable ASP on both IDUs (Configuration / Interfaces / Ethernet Interfaces)6. Enable all ASP options (ACM Threshold Profile is not relevant for this case)7. Verify link is up and traffic is received on both ports / IDUs8. Change the Link ID on local IDU to trigger “Link ID Mismatch” alarm

Expected Results

1. Check Current Alarms and expect for “Link ID Mismatch” alarm2. GbE SFPs (GbE ports on both IDUs) are muted

3. Link is down

4. Management to Remote unit is down

5. Traffic is down on both ends

Restore settings (identical Link ID) and verify:

Link is up

Traffic is running

Remote management is restored

Proceed to the next exercise without changing these settings.

Exercise #2:Local LOC with ASP OFF, Single Pipe, SFP

In this exercise we simulate normal link operation without ASP

1. Disable “Automatic State Propagation” on both IDUs

2. Assuming traffic is on and received OK -

3. Change the Link ID on one IDU to trigger “Link ID Mismatch” alarm

Expected Results

1. Check Current Alarms and expect for “Link ID Mismatch” alarm

2. GbE SFPs (GbE ports on both IDUs) are NOT muted

3. Traffic is down on both ends


Link is up

Traffic is running




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Exercise #3: Remote Fault with ASP ON, Single Pipe, SFP

In this exercise we simulate how Remote fault LOC impacts local SFP

1. Verify “Automatic State Propagation” is enabled on both IDUs

2. Verify traffic is on and received OK -

3. Disconnect local TX fiber from GbE SFP

Expected Results

1. Both SFPs on both IDUs are shut down (link down)

2. Local EMS shows “Gigabit ETH LOC on port 1”

3. Remote EMS shows “GbE TX Mute override on port 1”

4. Traffic is down


Link is up

Traffic is running



Exercise #4: Local LOC with ASP ON, Single Pipe, RJ45

In this exercise we simulate local LOC propagation from Radio to RJ45


2. Configure both IDUs to use Electrical port 1 (RJ45)


4. Disconnect local Radio (port 8 IF cable)

Expected Results

1. Both SFPs on both IDUs are shut down (link down)

2. Traffic is down

3. Radio link is down


Link is up

Traffic is running




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Exercise #5: Local LOC, ACM, ASP ON, Managed, SFP

In this exercise we simulate local LOC propagation from Radio to SFP triggered by ACM

Threshold profile


2. Configure both IDUs to use Electrical port 1 (SFP)

3. Set both IDUs to Managed Mode

4. Create VLAN 100 in switch DB

5. Set In Band management (VID 4000)

6. Set ASP ACM THSLD Profile to one profile lower than current radio link capacity


8. Increase radio link losses by increasing the link attenuation (use the variable attenuator)

to the point where ACM profile is decreased at least 2 steps (2 profiles)

Expected Results

1. Radio ports are logically closed

2. Traffic is down

3. Remote Management is down


Link is up

Traffic is running




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Chapter 2:

Basic L2 Maneuvers


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Required Setup



2 ODUs


PC (EMS)

2 ETH straight cables / or FO with SFPs installed in IP-10

2 ETH Cross Cables


L2 802.1p/q

L3 ToS / DSCP

Multiple streams SFP GbE / RJ45 GbE

RJ45 FE

Guidelines

1. Establish a single link system

2. Set switch mode to Managed Switch on both IDUs

3. Assign a radio script as shown in diagram below

4. Make sure radio properties provide optimal capacity (RSL ~ -45dBm, MSE< -36dB)

5. Configure out of band management

6. Disable all TDM/auxiliary channels

7. Configure the N2X traffic generator to generate 4 streams as shown below:

2 Main streams (60Mbps) are transported from Left IDU to Right IDU. 2 additional

streams (1Mbps) are transported from Right IDU to Left IDU.

8. Make sure you configure the exact parameters as depicted in each step.

9. It is strongly recommended to follow the exercises in the order of appearance.

Setup Diagram & Configuration

Radio Script = ACM 42Mbps, 7MHz, 256QAM

N2X

S1

+

S2

=

60Mbps

@64

bytes

S3+ S4 = 1Mbps

3 3 8 8


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N2X Configuration

Left IDU, Port 3

stream VIDMAC

P-BitIP

ToSSA DA SA DA

S1 100 00:20:8f:01:01:01 00:20:8f:00:00:02 1 192.1.1.2 192.2.1.2 111

S2 200 00:20:8f:01:01:01 00:20:8f:00:00:02 7 192.1.1.3 192.2.1.4 101

Right IDU, Port 3

stream VIDMAC

P-BitIP

ToSSA DA SA DA

S3 100 00:20:8f:00:00:02 00:20:8f:01:01:01 1 192.2.1.2 192.1.1.2 111

S4 200 00:20:8f:00:00:02 00:20:8f:01:01:01 7 192.1.1.4 192.2.1.3 101

Exercise #1: VID Queuing

1. We apply QoS to left IDU to optimize the radio link (transport high priority services and

discard lower priority frames).

2. The radio script allows max. 42Mbps (L1) or 32 Mbps (L2, data rate). For detailed

explanation please review “PM presentation”.

3. In this exercise we prioritize the ingress services (port 3 left IDU) by VLAN ID.4. Since both streams are forwarded to port 8, we apply the Egress Scheduling to port 8.

5. There is no need to apply QoS on right IDU since the radio link is already optimized.

QoS Configuration

Left IDU, Port 3 Ingress Queuing

1. 1st criteria (MAC): Disabled

2. 2nd

criteria (VID): Queue Decision

3. 3rd criteria: VLAN P-Bits4. Default classification: 1st queue

Left IDU, Port 8 Egress Queuing: 4th

queue S.P.

VLAN ID to Queue Table

VID 100 = 4th Queue

VID 200 = 1st Queue


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Expected Results

Stream S1 is fully received (~22 Mbps)

Stream S2 is partially received (~17 Mbps)


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Exercise #2: P-Bit Queuing

1. In this exercise we maintain ingress transmission but apply a different Ingress Queuing

classification: by VLAN P-Bit.

2. To classify according to VLAN P-Bit, we need to configure first the VLAN P-Bit to Queue

Table (see below).

QoS Configuration



2. 2nd

criteria (VID): Disabled

3. 3rd

criteria: VLAN P-Bits

4. Default classification: 1st Queue


queue S.P.

VLAN P-Bits to Queue Table

Default settings

P-Bit 1 = 1st Queue

P-Bit 7 = 4th Queue

Expected Results




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Exercise #3: HRR as Egress Scheduling

1. In this exercise we maintain ingress transmission but apply a different Egress Scheduling

to port 8: HRR.

2. To apply HRR, we need to configure first the Queue Weights Table (see below).

QoS Configuration



2. 2nd


3. 3rd


4. Default classification: 1st queue

Left IDU, Port 8 Egress Queuing: HRR

Queue Weights Table

1st Queue 8 packets

2nd

Queue 8 packets

3rd

Queue 8 packets

4th Queue 8 packets

Expected Results

Streams S1 & S2 received equally (~20 Mbps each)


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Exercise #4: IP-ToS (Precedence) Queuing

1. In this exercise we maintain ingress transmission but apply a different Ingress Queuing:

we classify packets according to Precedence bits (3).

2. To apply IP-ToS Queuing, we need to configure first the IP-Bits to Queue Table (see

below).

QoS Configuration



4. 2nd


5. 3rd

criteria: IP-TOS



Queue S.P.

IP-Bits to Queue Table

Default settings

111 to Q4

101 to Q3

Expected Results




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Exercise #5: IP-ToS over VLAN P-Bits Queuing

1. Change the 3rd

criteria to “ IP-ToS over VLAN P-Bits”

2. There should not be any impact on received streams since we generate IP packets over

ETH frames (Switch is instructed to queue according to IP overhead).

QoS Configuration



2. 2nd


3. 3rd

criteria: “ IP-ToS over VLAN P-Bits”


Expected Results




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Exercise #6: VLAN P-Bits over IP-ToS Queuing

1. Change the 3rd

criteria to “VLAN P-Bits over P-ToS”

2. Now the Switch is instructed to queue according to VLAN Tag – therefore the expected

results are as shown below

QoS Configuration



5. 2nd


4. 3rd

criteria: “ VLAN P-Bits over P-ToS”


Expected Results




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Exercise #7: Applying an Egress Shaper

1. In this exercise we examine the functionality of the Egress Shaper

2. We maintain the same configuration for the left IDU

3. We apply a shaper to the egress port of right IDU (port 3)

4. If you followed the previous exercises according to the specified steps, Left IDU Queuing

policy would be “VLAN P-Bits over ToS” which means :



5. When we apply the shaper on port 3, the scheduler will empty the streams according to

their ingress queuing rules (port 8).

6. The default queuing classification for port 8 (right IDU) is VLAN P-Bits, same as the

ingress queuing classification on port 3 (left IDU).

7. This ingress queuing is only effective when BW of port 3 (Egress) is not sufficient

(Shaper is on).

Setup Diagram

(S1+S2) = 60Mbps @64 bytes

N2X

We are shaping down

the egress rate to

10Mps =

Ingress queuing

becomes effective

Queuing by VLAN P ‐Bit

– only effective when

BW of Egress port is

not sufficient


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Exercise #7: Apply ing an Egress Shaper – Cont inued

QoS ConfigurationLeft IDU, Port 3 Ingress Queuing


8. 2nd


9. 3rd

criteria: VLAN P-Bits over IP-TOS



Queue S.P.


Default settings P-Bit 1 = 1

st Queue

P-Bit 7 = 4th Queue

Right IDU, Port 8 Ingress Queuing


2. 2nd


3. 3rd



Right IDU, Port 3 Egress Queuing: 4th

Queue S.P.

Right IDU, Port 3 Egress Shaper is ON, Shaping rate set to 10,000Kbps (10Mbps)

Expected Results

Port 3 egress rate is reduced to 7.7Mbps (Data rate @64 bytes per frame)

Only Stream S2 is partially received (higher P-Bit)

Stream S1 is discarded (lower P-Bit)


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Exercise #8: Applying an Egress Shaper wi th HRR

1. In this exercise we apply HRR scheduling to the Egress port (port 3, right IDU)

2. As a result, egress traffic should be balanced according to your HRR settings (Queue

Weight Table).

3. It is therefore recommended to configure first the Queue Weight Table.

QoS Configuration



12. 2nd


13. 3rd




Queue S.P.


Default settings

P-Bit 1 = 1st Queue

P-Bit 7 = 4th Queue

Right IDU, Port 8 Ingress Queuing


6. 2

nd

criteria (VID): Disabled7. 3

rd criteria: VLAN P-Bits


Right IDU, Port 3 Egress Queuing: HRR (set your preferred weights)

Right IDU, Port 3 Egress Shaper is ON, Shaping rate set to 10,000Kbps (10Mbps)

Expected Results

Port 3 egress rate is reduced to ~7.7Mbps (Data rate @64 bytes per frame)

Streams S1 & S2 are balanced according to HRR settings


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Exercise #9: Apply ing a Policer

1. In this exercise we apply a Rate Limiter on port 3 (left IDU).

2. Before we apply the Policer, we set off the Shaper to recover original settings

3. Policers can be configured to limit traffic according to their Ether-type: MC, unicast, etc.

4. We shall apply a generic condition as shown below.

QoS Configuration



2. 2nd


3. 3rd




Queue S.P.


Default settings

P-Bit 1 = 1st Queue

P-Bit 7 = 4th Queue

Left IDU ports 3 – create & assign a Policer with the fo llowing criteria:

Traffic Type = All

CIR = 25,000 Kbps

CBS = 0 Kbps

Right IDU, Port 3 Egress Shaper is OFF

Expected Results

Due to the Leaky Bucket characteristics of the Policer mechanism, the actual egress rate

(CIR) is reduced to a lower figure than configured CIR (users are advised to increase the

CBS to improve the CIR).


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Exercise #10: Queuing MACs

1. In this exercise we queue the ingress frames according to their MAC DA

2. We configure the MAC table to assign P-Bit 7 to all ingress frames with DA =

00:00:00:00:00:02

3. The N2X generates S1 with the required MAC DA and P-bit 1

4. The switch will overwrite the P-Bit and assign the frame to the queue we set in the Static

MAC table

N2X Configuration (Left IDU, Port 3)

stream VIDMAC

P-BitIP

ToSSA DA SA DA

S1 100 00:00:C0:01:01:02 00:00:00:00:00:02 1 192.1.1.2 192.2.1.2 111

S2 200 00:00:C0:01:01:03 00:00:00:00:00:03 7 192.1.1.3 192.2.1.4 101

QoS Configuration


1. 1st criteria (MAC): Queue Decision

2. 2nd


3. 3rd




Queue S.P.

Left IDU Static MAC Table:

MAC 00:00:00:00:00:02 with VID 100 is forwarded to ETH port 8 with P-Bit 7 (overwritten)


Default settings (P-Bit 7 = 4th Queue)

Expected Results

Now S1 and S2 have the same queuing criteria (Q4). Therefore, both streams will bereceived equally.


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Chapter 3:

QoS using Video Streaming


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Required Setup



2 ODUs


Variable Attenuator (optional)

EMS PC

Laptop/PCs to be used as Video Clients

Laptop/PC to be used as Video Server

5 ETH straight cables

2 ETH Cross Cables

VLC Media player version 0.9.9


L2 802.1p/q

L3 ToS / DSCP

Multiple streams

SFP GbE / RJ45 GbE

RJ45 FE


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Preliminary Configurations

VLC Server Configuration1. Launch VLC application

2. In the main window – select Media / Streaming:

3. In the Streaming window, select the video you wish to stream -

Click

here


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4. Configure the following settings:

Select “Play Locally”

Select “RTP” Select “Prefer UDP over RTP”

Address: 224.0.0.1, port 1234

Click “STREAM”

The video will now play on your server screen (delays may occurs due to insufficient RAM)

Click

here


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VLC Client(s) Configuration

1. Launch the VLC application

2. Select Media / Open Network:

3. In the Open Network window, configure the following and click PLAY:

You can connect the Server PC to the Client PCs back to back (using an ETH crossed

cable) to make sure configuration is OK.You may launch as many clients as needed

The video will now play on your server screen (delays may occurs due to insufficientRAM)

Click

here


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Exercise #1: QoS Demo using VLC

Brief :

The plan is to stream a video through the radio link to the remote IDU

Client users connect their laptop to the remote IDU and observe live streaming

The traffic generator will consume gradually the available BW of the radio

As a result of specific QoS settings, the video will freeze / pixelize according to the ETHtraffic transmission rate

Using the variable attenuator, we can also simulate link losses. With ACM enabled, thevideo stream with lower priority will suffer first.

Establish the setup as depicted in the diagram:

200Mbps

ACM

enabled

Link with Variable Attenuator

VLC

Server

VLC

Client

VLC

Client

Port 4:

Access

VLAN

10

Port 3:

Access

VLAN

10

N2X Traffic

Generator

VLAN

20

Port 2 (GbE):

Trunk

VLAN 20

Port 2 (GbE):

Trunk

VLAN 20

Port 3:

Access

VLAN

10


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N2X Conf iguration

Connect port 1 (TX) to Left IDU Port 2 with the following attributes -

Stream VIDMAC

P-BitIP

ToSSA DA SA DA

S1 20 00:00:C0:01:01:02 00:00:00:00:00:02 1 192.1.1.2 192.2.1.2 111

Connect port 2 (RX) to Right IDU Port 2

Commence transmission at 100 Mbps

Verify there are no losses

VLC Configuration Connect server and clients and verify live streaming is OK

QoS Configuration


1st criteria (MAC): Disabled

2nd


3rd


Default classification: 1st queue


Queue S.P.

Left IDU - VLAN ID to Queue Table

VLAN ID 10 (video) to Queue 1 (lowest)

VLAN ID 20 (data) to Queue 4 (highest)

Actions & Expected Results

1. Connect server and clients and verify live streaming is OK

2. ETH traffic is fully received without packet loss3. Increase losses with variable attenuator - Video streaming will die first and ETH will

suffer losses4. Resume full radio capacity & Increase ETH Traffic to ~200 Mbps - Verify live streaming is

freezing / blocking / pixelizing, ETH traffic is fully received without packet loss


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Chapter 4:

QoS in a RING topology using RSTP


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Introduction and Guidelines

The objectives of this chapter are to explain, practice and visualize the following concept:

When a certain Ring-Segment shrinks, the systems are required to execute QoS accordingly andthus, maintain SLA commitments.

We shall examine 2 cases:

1. User data < Ring capacity

2. User data > Ring capacity(Oversubscription)

In these exercises, your goals are to design & configure QoS (TE) at the closest point before

entering the backbone:• To improve resource (BW) utilization• Avoid service starvation due to streaming of low priority services

In a RING, you will need to implement QoS at Ingress points (dots in diagram). Such roles (ingress& egress) may reverse according to the direction of traffic flows.


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Required Setup


6 IP-10R1 / 6 IP-10G IDUs (standalone or using an enclosure)

3 Main Enclosures (for IP-10G case)

6 ODUs (to make 3 radio links)



EMS PC


5 ETH Cross Cables


L2 802.1p/q L3 ToS / DSCP

Multiple streams

SFP GbE / RJ45 GbE

RJ45 FE

Preliminary Checklist

1. Always prefer to set IDUs to factory defaults prior to any exercise/demo2. All IDUs and ODUs share identical SW version3. All IDUs and ODUs share identical HW version4. Install IDU license or enable Demo license5. When establishing the physical radio links connect variable attenuators if possible6. Coordinate your settings with your classmates to avoid confusions

Setup Glossary

• Ports participating in traffic transmission are bolded with a thick line• Disabled ports / Unavailable ports are illustrated with a thin line• MW Radio Links are illustrated with a blue line• Fiber Optics are illustrated with an orange thick line• Radio ports are illustrated with a circle

• Ethernet cables are illustrated with a thin line• In Band = VID 1000, Highest Priority Service• S1 = ETH Stream #1, VID 10, High Priority Service• S2 = ETH Stream #2 , VID 20, Medium Priority Service• S3 = ETH Stream #3 , VID 30, Lowest Priority Service


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N2X Conf iguration

Configure 3 streams on port 1 as follows -

Stream VIDMAC

P-BitFrameSize

Destination PortSA DA

S1 10 00:20:8f:10:10:10 00:20:8f:00:00:10 0 64 N2X Port 2

S2 20 00:20:8f:10:10:10 00:20:8f:00:00:20 4 64 N2X Port 3

S3 30 00:20:8f:10:10:10 00:20:8f:00:00:30 6 64 N2X Port 4

Configure each one of the streams to transmit back low rate traffic to port 1 to enable theIDUs to learn properly the MACs of the bidirectional streams

Set the transmission rate to a value below the radio capacity (i.e. 25% is below 200Mbps)

Connect N2X port 1 to Site A slot 1 port 2

Connect N2X ports 2/3/4 to Site C slot 1 ports 3/4/5 respectively

Use the following screen capture as reference to your configuration:

Port 1 Transmission Rate:

Port 1 Stream Configuration:

Stream 1 Configuration:


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Setup Diagram

Variable Attenuator

(See next page for further explanations)

192.168.1.203 192.168.1.201

192.168.1.205

Site

C

Site

B

Site

A

M.

M.

P.

M.

VID

10

VID

20

VID

30

CAT5

F.O.

MW (SMA)


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Setup Diagram – Ingress VS. Egress

We shall stream 3 services plus in-band packets via Site A (Ring Entry Point). Port 2 of Site A would serve as the Ingress Port for all services.

The main IDU (slot 1) will forward the streams to the radio port (8) and/or port #1 withrespect to the ring actual topology.

When one of these Egress ports will suffer capacity drops, QoS will be notices as lowservices will drop while high services will remain.


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Setup Preparations

1. Enable Demo license on all IDUs or alternatively – install licenses on IDUs

2. Examine the setup diagram carefully and set the “Switch Mode” of IDUs accordingly3. Set “Management Mode” to In-Band with “In-Band VID” = 1000 (Slots #1)4. Create VID 10,20,30 in the Switch DB (only relevant for Managed Switch IDUs)5. Create VID 1000 in Site C slot #2 (extension IDU in Managed Mode)6. Enable RSTP on all IDUs (Managed Mode IDUs)7. Set ports that do not participate in the ring as Edge Ports:

Site A Slot 1 Port 2 = Edge Port

Site C Slot 1 Port 3 = Edge Port



It is strongly recommended to configure disabled ports to Edge Ports as well toavoid problems when enabling those ports in the future

8. Identify the Alternate port in the setup (using the Ring RSTP page in EMS)9. Identify the Root Bridge in your ring topology10. Establish Radio links between all sites with MSE ~ (-35dB) or lower11. Assign identical MRMC scripts to all links: 200Mbps+ACM enabled (MRMC profile 17)12. Configure / Verify the following:

Site A, slot 1, port 1 set to Trunk, member of VID 10,20,30,1000 (SFP)

Site A, slot 1, port 2 set to Trunk, member of VID 10,20,30 (SFP)

Site B, slot 2, port 1, enable port as SFP

Site B, slot 1, port 1 set to Trunk, member of VID 10,20,30,1000 (SFP)

Site C, slot 1 port 1 set to Trunk, member of VID 10,20,30,1000 (SFP)

Site C, slot 2, port 1 set to Trunk, member of VID 10,20,30,1000 (SFP)

Site C, slot 2, port 8, verify port is a member of VID 10, 20, 30, 1000

Site C, slot 1, port 3 set to Trunk, member of VID 10



13. Enable Automatic State Propagation in all IDUs as follows (yellow is a must):

ParameterSite A (.202) Site B (.206) Site C (.204)

Slot 1 Slot 2 Slot 1 Slot 2 Slot 1 Slot 2

ASP Enabled Enabled Enabled Enabled Enabled Enabled

Local LOF Enabled Enabled Enabled Enabled Enabled Enabled

Link ID mismatch Enabled Enabled Enabled Enabled Enabled Enabled

ETH shutdown Profile 0 Profile 0 Profile 0 Profile 0 Profile 0 Profile 0

Local Exc. BER Disabled Disabled Disabled Disabled Disabled Disabled

Local LOC Disabled Disabled Disabled Disabled Disabled Disabled

Remote Fault Disabled Enabled Disabled Enabled Disabled Disabled

14. PING EMS to all IDUs simul taneously (initiate multi ple PING sessions throughoutthe entire exercise). Verify PING is stable: no timeouts, very low latency (a fewmSec)

15. Break the ring (disconnect F.O. and/or SMA RF cable) – verify PING is maintained16. Recover connection and break a different segment of the ring – again, verify PING is

maintained: no timeouts, very low latency (a few mSec)17. Configure QoS as follows –


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Exercise #1: In Band @ SP, User data @ HRR

QoS Configuration

1. Configure the global table “ VLAN ID to Queue” of the IDUs:• VLAN 1000 to Queue #4• VLAN 10 to Queue #3• VLAN 20 to Queue #2• VLAN 30 to Queue #1

3. Configure the global table “ Queue Weights” of the IDUs:

First queue 1

Second queue 2

Third queue 4

Fourth queue 8

4. Configure all participating ports as follows:

Ingress Classifiers: • 1

st Criteria: Disabled

• 2nd

Criteria: Queue Decision• 3

rd Criteria: Port Classification

• Default Classification: 1st Queue

Egress Scheduling: Fourth Queue Strict

Shaper : OFF

Policer : None


5. Run Traffic @ 25%(user data< ring capacity)6. Expect no losses of Management packets (observe the PING sessions…)7. Expect the following (no losses):


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8. Disconnect a radio link (IF cable) for at least 15 sec and verify traffic is received constantly9. Restore radio connection, wait till LINK is recovered and verify traffic is received constantly

10. Disconnect a different ring segment to verify RSTP properly maintains services.11. Increase Traffic to 40%(oversubscription)12. Expect the following (balanced losses according to Queue Weights Table):

13. Check the MAC learning table: verify that RSTP BPDUs are assigned to the highest queue:a. Select the Single Pipe IDUs (Site A slot 2, Site B slot 2)b. Click on “QoS & Rate Limit page”c. Click on “Static MAC” tabled. Here is an example –


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Exercise #2: In Band & User data – All Queues SP

QoS Configuration

1. Configure the global table “ VLAN ID to Queue” of the IDUs:

• VLAN 1000 to Queue #4• VLAN 10 to Queue #3• VLAN 20 to Queue #2• VLAN 30 to Queue #1

2. Configure the global table “ Queue Weights” of the IDUs:

First queue 1

Second queue 2

Third queue 4 Fourth queue 8

3. Configure all participating ports as follows:

Ingress Classifiers: • 1

st Criteria: Disabled

• 2nd

Criteria: Queue Decision• 3

rd Criteria: Port Classification

• Default Classification: 1st Queue

Egress Scheduling: All Queues Strict

Shaper : OFFPolicer : None


4. Run Traffic @ 30% (oversubscription)5. Expect no losses of Management packets (observe the PING sessions…)6. Expect the following (packet loss on low services):


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Exercise #3: ACM to trigger a Switchover

1. Maintain the same QoS settings as before2. Reduce transmission rate to 25% (user data < ring capacity)3. Verify there are no packet loss on all services and management4. Apply losses on active route from Site A to Site C by reducing TSL or increasing attenuation

(variable attenuator)5. Verify ACM is executed automatically: modulations have adopted and higher services are

transmitted via the ring.6. Restore setup functionality and make sure all services and MNG are received OK


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Chapter 5:

CFM in a RING topology using RSTP


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Required Setup


6 IP-10R1 / 6 IP-10G IDUs (standalone or using an enclosure)

3 Main Enclosures (for IP-10G case)

6 ODUs (to make 3 radio links)



EMS PC


5 ETH Cross Cables


L2 802.1p/q L3 ToS / DSCP

Multiple streams

SFP GbE / RJ45 GbE

RJ45 FE


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Setup Diagram & Introduction

In this exercise we demo the functionality of CFM in a RING RSTP environment

We create a domain between Site A slot 1 port 6 and Site C slot 1 port 6

The GbE port and Radio port of these IDUs will serve as MIPs to give us better resolutionfor troubleshooting and maintenance

We assume that other IDUs are non-CFM bridges, meaning – they do not support CFM.By definition, they are expected to pass through transparently the CFM frames.

To transport the CFM frames along the ring, we shall need to create the CFM serviceVLAN in all switches and ports that participate in the RING RSTP topology.


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Exercise #1: CFM in a RING RSTP

1. Add VLAN 4000 to Switch DB:

Site A slot 1

Site B slot 1

Site C slot 1

Site C slot 2

2. Add VLAN 4000 to port membership table (Allowed VID):

Site A, slot 1, port 1





Site B, slot 1, port 1




Site C, slot 1, port 1





3. Site A, slot 1: Create a MAID using the following criteria:

Domain Name: D1

Level: 7

Association Name: D1S1

VLAN ID: 4000

4. Repeat step 15 for Site C slot 1

5. Create MEPs as follows:

Site A slot 1 port 6 – Local MEP 1, Remote MEP #2

Site C slot 1 port 6 – Local MEP 2, Remote MEP #1

Enable CCM on both MEPs

6. Connect PCs to port 6 to establish a physical link to MEPs – verify Remote MEPs are fullyidentified

7. Add MIPs as follows:

Site A slot 1 port 1 (level 7)

Site A slot 1 port 8 (level 7)

Site C slot 1 port 1 (level 7)

Site C slot 1 port 8 (level 7)


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8. Select “Automatic Link Trace” checkbox on Remote MEP 1 and 2 (Site A and Site C):

9. Click on “Add Selected” button (both MEPs, sites A & C)

10. Configure “Auto Linktrace interval” to 60 seconds

11. Click on “Linktrace Selected” and wait till the linktrace table appears12. Save or copy (screen capture) the table – make notes of the displayed MIPS and MEPs13. Trigger an RSTP switchover (IF disconnection or GbE disconnection)14. Repeat steps 23 – 24 and compare your results15. Expect to see the different routes before and after the switchover

16. You may use the following examples as reference:

Linktrace before a switchover:

Port 6 of Site A goes

to port 8 (Radio) on

its way to Site C


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Linktrace after a switchover:

Port 6 of Site A goes now to port

1 (GbE) on its way to Site C


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Chapter 6:

Cross Polarization Interference Cancellation


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Required Setup


4 IP-10G IDUs

2 Main Enclosures

4 RFU-C ODUs



XPI BOX

EMS PC

3 Fiber Optics (SM or MM) with equivalent transceivers


5 ETH Cross Cables

VLC Media player version 0.9.9 (optional)


L2 802.1p/q

L3 ToS / DSCP

Multiple streams

SFP GbE / RJ45 GbE

RJ45 FE


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Setup Diagram & Introduction

In this exercise we demonstrate the benefits of XPIC:

1. Doubling link capacity

2. Using a single channel

To enable XPIC, we need to assign XPIC MRMC script on each radio

The N2X generates bidirectional traffic consisting of 2 streams, each stream associatewith unique VID

Main IDU will transport Service 1 (S1) and Slot 2 will transport Service 2 (S2)

FO

FO

S2: VLAN 200,,1000


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The XPI Box

Connect the XPI box as follows -

The XPI box allows us controlling the link attenuation and XPI per channel:

Link Attenuator

Link Attenuator

“ H” signal

Site A Slot 2

“ H” signal

Site B Slot 2

“ V” Signal

Site B Slot 1

“ V” Signal

Site A Slot 1

Site B Slot 2

“ v” Interference “ h” Interference

Increasing attenuation /interference

Decreasing attenuation/ interference


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Exercise 1: Setting Up XPIC

1. Make sure all IDUs are installed with the same SW version2. Make sure all IDUs are installed with the same HW version (supporting XPIC)3. Make sure all ODUs are installed with the same SW and Firmware versions4. Install a license per IDU or alternatively enable the Demo license5. Establish the physical setup as illustrated in the diagram6. Set the MAIN IDUs to Managed Mode (slots number 1)7. Set the Extension IDUs to Pipe (slots number 2)8. Set Management mode to In-Band (VID 1000)9. Create VID 100 and VID 200 in Switch DB of MAIN IDUs10. Configure Port 1 of MAIN IDUs as SFP, Trunk, member of VID 10011. Configure Port 8 of MAIN IDUs as Trunk, member of VID 200, VID 100012. Configure Port 2 of MAIN IDUs as SFP, Trunk, member of VID 100, VID 20013. Connect FO between slot 1 port 1 and slot 2 port 1 (of both sites)

14. Assign XPIC Script to all radios (MRMC profile # 12)15. When IDUs complete the reset (due to MRMC change), configure Radio Parameters to

all radios:

TSL

Frequencies

Link ID

MAC Header Compression

16. Verify that no alarms exist in the system.17. Clear the defected blocks counter and verify that there are no errors in the system.18. Read the MSE and XPI of all 4 Radios and verify that they fit the link design (verify that

they are below -35dB and above 25dB, respectively).

19. Change the attenuators on the XPI box to generate inferences and write down the XPIvalues as they change in the following table:

IDU XPI before [dB] XPI after [dB]

Site A slot 1

Site B slot 1

Site A slot 2

Site B slot 2

20. Examine the XPI PM (PM & Counters / Radio / XPI)21. Examine the Event Log of all IDUs, look for XPIC messages as XPI increase/decrease

Site A Slot 1

Site A Slot 2

Site B Slot 1

Site B Slot 2


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Exercise 2: Transmitt ing & Monitoring Traffic v ia XPIC

N2X Conf iguration1. Configure 2 streams on port 1 as follows -

Stream VIDMAC

P-BitFrameSize


S1 100 00:20:8f:10:10:10 00:20:8f:00:00:10 0 64 N2X Port 2

S2 200 00:20:8f:10:10:10 00:20:8f:00:00:10 0 64 N2X Port 2

2. Configure 2 streams on port 2 as follows -

Stream VIDMAC

P-BitFrameSize


S1 100 00:20:8f:00:00:10 00:20:8f:10:10:10 0 64 N2X Port 1

S2 200 00:20:8f:00:00:10 00:20:8f:10:10:10 0 64 N2X Port 1

3. Set the transmission rate of both ports to ~92% to achieve maximum throughput withoutpacket loss

4. Connect N2X port 1 to Site A slot 1 port 25. Connect N2X port 2 to Site B slot 1 port 2

Performance Monitoring

6. Check the throughput and capacity of all radios and fill in the table below:

Site & Radio Port Throughput [Mbps] Capacity [Mbps]

Site A Slot 1

Site A Slot 2

Site B Slot 1

Site B Slot 2


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Chapter 7:

Link Aggregation


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Required Setup


4 IP-10G IDUs

2 Main Enclosures

4 ODUs



EMS PC


2 ETH Cross Cables

2 Fiber Optics (SM or MM) with equivalent transceivers


L2 802.1p/q

L3 ToS / DSCP

Multiple streams

SFP GbE / RJ45 GbE

RJ45 FE


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Setup Diagram

Slots# 2 (upper IDUs) are configured as Single Pipe with Port 1 set to RJ45 with AutoNeg. disabled, speed fixed to 1000Mbps

Port 2 of lower IDUs is set as RJ45, Auto Neg. disabled, speed fixed to 1000Mbps

Lower IDUs and upper IDUs are connected together with ETH straight cable (CAT5)

Slots #1 (lower IDUs, Main) are configured as Managed Switch to support LAG

Port 2 and port 8 (Radio) of lower IDUs are grouped together in LAG (in both sites)

Traffic is injected via GbE port #1 and is distributed between Port #2 & Port #8

Traffic distribution is according to the configured MAC addresses of the streams (N2X)

Automatic State Propagation (ASP) is enabled on all IDUs to allow a faster switchover(failed port to active port)

We shall also demonstrate how ASP can improve system resiliency when ACM degradesbelow a certain Threshold Profile

Important note –

When you use the PM data, please bear in mind that the RMON registers displayaccumulative information. The numbers do not represent instantaneous values.

When you use the Throughput parameter (Radio ETH PM) – please bear in mind to waitat least 5 minutes before coming to a conclusion. By default, Throughput is most efficientwhen counters complete a 15 min interval.


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Exercise #1: Unbalanced Traffic

1. Make sure all IDUs are installed with the same SW version

2. Make sure all IDUs are installed with the same HW version3. Make sure all ODUs are installed with the same SW and Firmware versions4. Install a license per IDU or alternatively enable the Demo license5. Establish the physical setup as illustrated in the diagram

6. Set the MAIN IDUs to Managed Mode (slots number 1)7. Set the Extension IDUs to Pipe (slots number 2)8. Set Management mode to Out of Band9. Assign MRMC script # 20 (ACM, 367Mbps, 56MHz) to all radio links

10. Create VID 200 in Switch DB of MAIN IDUs11. Configure Port 1 of Main (lower) IDUs to use SFP, Trunk, member of VID 20012. Configure Port 2 of Main (lower) IDUs to use RJ45, AutoNeg disabled, speed

@1000Mbps, Trunk, member of VID 20013. Configure Port 1 of upper IDUs to use RJ45, AutoNeg disabled, speed @1000Mbps14. Connect Port 1 of upper IDU to Port 2 of lower IDU using ETH straight cable, verify

physical link is up15. Enable Automatic State Propagation in all IDUs. Set ACM Threshold Profile to Profile #3.16. Select “Simple XOR” in all Main IDUs (Configuration / Ethernet /Interfaces)

Use this screen capture as a reference (Main IDUs) –

17. Create a LAG with Port 2 and the radio port:

? %

?

%


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N2X Conf iguration:

Port 1: configure 3 streams according to the following table (do not configure the user data

parameters, they serve as reference to understand to which port frames are forwarded to)-

Stream VLAN MAC Source Address MAC Destination

Address XOR result(User data)

S1 200 00:20:8f:0a:02:01 00:20:8f:0a:01:01 000 (0)

S2 200 00:20:8f:0a:02:02 00:20:8f:0a:01:02 000 (0)

S3 200 00:20:8f:0a:02:03 00:20:8f:0a:01:03 000 (0)

Port 2: configure 3 streams according to the following table -


AddressXOR resul t(User data)

S1’ 200 00:20:8f:0a:01:01 00:20:8f:0a:02:01 000 (0)

S2’ 200 00:20:8f:0a:01:02 00:20:8f:0a:02:02 000 (0)

S3’ 200 00:20:8f:0a:01:03 00:20:8f:0a:02:03 000 (0)

Configure a Receiving port for each stream (when configuring port 1, the receiving port isport 2 and vice versa)

Connect N2X port 1 to Site A Slot 1 Port 1(left in setup diagram)

Connect N2X port 1 to Site B Slot 1 Port 1 (right in setup diagram)

Run traffic on both ports at 40% rate

Actions & Expect Results

1. Since the XOR result is the same for all streams, the traffic should be sent through asingle port (2 or 8) in the Main IDUs (unbalanced distribution).

2. Examine RMON Registers and Throughput of Port 8 and Port 2 of lower IDUs and UpperIDUs and fill in the table below (wait at least 5 min before investigating the Throughput) –

Streaming Port Throughput [Mbps]

Site A Upper IDU Port 8

Site A Lower IDU Port 8

Site B Upper IDU Port 8

Site B Lower IDU Port 8


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Exercise #2: Unbalanced Traffic


1. Disconnect the IF cable which connects the radio link that delivers the traffic.2. Examine RMON Registers and Throughput of Port 8 and Port 2 of lower IDUs and Upper

IDUs and fill in the table below (wait at least 5 min before investigating the Throughput).Expect to see reverse results now –






3. Restore connection and verify all 3 streams are received OK.


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Exercise #3: Balanced Traffic

N2X Conf iguration:

Port 1: configure 2 streams according to the following table (do not configure the user data

parameters, they serve as reference to understand to which port frames are forwarded to)-


Address XOR resul t

(Link)

S4 200 00:20:8f:0b:e1:03 00:20:8f:0a:e1:04 111 (1)

S5 200 00:20:8f:0b:e1:03 00:20:8f:0a:e1:01 010 (2)

Port 2: configure 2 streams according to the following table -


Address XOR result

(Link)

S4’ 200 00:20:8f:0a:e1:04 00:20:8f:0b:e1:03 111 (1)

S5’ 200 00:20:8f:0a:e1:01 00:20:8f:0b:e1:03 010 (2)

Configure a Receiving port for each stream (when configuring port 1, the receiving port isport 2 and vice versa)

Connect N2X port 1 to Site A Slot 1 Port 1(left in setup diagram)

Connect N2X port 1 to Site B Slot 1 Port 1 (right in setup diagram)

Run traffic on both ports at 40% rate


1. Since the XOR result is the unique per stream, the traffic should be equally balanced (weonly have 2 streams).

2. Examine the Throughput of Port 8 of lower IDUs and Upper IDUs and fill in the tablebelow –






3. Disconnect one of the IF cables and verify all streams are still received OK.4. Use the RMON registers and Throughput to investigate which of the 2 radio ports

transmits 100% and which is silent.5. Recover system functionality (traffic is equally balanced) and proceed to the next

exercise.


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Exercise #4: ACM to trigger LAG switchover

1. Make sure all radio links operate properly and traffic is received OK (equally distributed)2. Increase attenuation between upper radios using the variable attenuator until “Current

Profiles” point to Profile #3 or lower (ASP will shut down the GbE port 1 of upper IDUs).3. Examine the Throughput of Port 8 & Port 2 of lower IDUs and Upper IDUs and fill in the table

below –






(Lower IDUs should take 100% of traffic)


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Chapter 7:

TDM Cross Connection


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Setup Glossary

IDU in Managed mode (shelf slot number indicated)

IDU in Pipe mode (shelf slot number indicated)

STM-1 Mezzanine installed in IDU

2 outdoor units interconnected with attenuators

(not shown), WG to RF adaptors (not shown) and RF cable

Protected Radio links with RF splitters (blue)

PDH / STM Traffic Generator

3 4 5 6 7

MNG (slot #1)

3 4 5 6 7

Pipe (slot #2)

3 4 5 6 7

MNG (slot #1)


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Exercise #1: Simple Star Topology

Objectives:1. Demonstrate Out Of Band Management in a simple Star Topology setup

2. Demonstrate In Band Management in a simple Star Topology setup

3. Demonstrate STM-1 XC trails

4. Demonstrate TDM XC trails

Required Setup:

1. 4 IP-10 G-Series IDUs

2. 4 outdoor units (+ IF cables)

3. 4 attenuators (30dB each)

4. 4 WG to RF adaptors5. 2 RF cables to interconnect outdoor units

6. STM-1 Mezzanine

7. 1 STM-1 Traffic Generator / Analyzer

8. 1 PDH Traffic Generator / Analyzer

9. 1 PDH cable

10. 2 ETH Crossed cables

11. ETH switch

12. 4 ETH cables

13. CLI serial cable

Setup Diagram:

Site

#1

Site

#2

Site

#3

Site #1

Site #3

Site #2

3 4 5 6 7

Pipe (slot #2)

3 4 5 6 7

MNG (slot #1)

3 4 5 6 7

MNG

(slot

#0)

3 4 5 6 7

MNG

(slot

#0)


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Setup Description:

Site #1(Primary Node) consists of two shelves:

Slot #1 – Switch set to Managed Mode

Slot #2 – Switch set to Pipe mode

Site #2 is a standalone, switch set to Managed

Site #3 is a standalone IDU installed with an STM-1 Mezzanine, switch set to Managed

First step would be getting familiar with the equipment, e.g. – IP addresses of each IDU and radio

frequencies of each ODU. Once you accomplish that, set up the equipment according to the

diagram and configure the setup to support In Band management along the links.

Once your setup is properly connected, you may start with the trails configuration. We want todemonstrate that XC trails deliver traffic along the links as well as through the shelf backplane.

Setup Configuration:

1. Establish the physical connections according to the setup scheme

2. Configure OOB management on all IDUs

3. Set the Switch mode of each IDU according to the setup scheme

4. PING EMS to all IDUs via external switch

5. Set management mode to In-Band, set the same MNG VLAN ID (200) on all IDUs

6. Enable port #3 in Site #1 Slot #1, make sure port #3 is a member of VID 200

7. Connect cross-cable between Site #1 Slot #1 por t #3 and Site #1 slot #2 port #3

(make sure port #1 is disabled)8. Disconnect Site #2 and Site #3 from ETH switch

9. PING EMS to IDUs (except for site #1 slot #2)

10. Configure the following trails (next page)

11. You may use line-loopbacks on the other side of each TDM trail or alternatively, you may

connect physical loopbacks on each TDM port

12. Make sure you assign trails to unique radio VCs (you will need to configure the STM-1

traffic generator accordingly)


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Trails:

Configure the same XC trails using EMS

Trail # Origin Going to Going to Going to Going to Going to

1Site #1Slot #1TDM

port #1

Site #1Slot #2

Radio VC#1

Site #2Slot #0

Radio VC #1

Site #2Slot #0

TDM port #1NR NR

2Site #1Slot #1

TDMport #2

Site #1Slot #2

Radio VC#2

Site #2Slot #0

Radio VC #2

Site #2Slot #0

TDM port #2

NR NR

3Site #1Slot #2TDM

port #32

Site #1Slot #1

Radio VC#1

Site #3Slot #0

Radio VC #1

Site #3Slot #0

SDH VC #1NR NR

4Site #3Slot #0

SDH VC#2

Site #3Slot #0

Radio VC#2

Site #1Slot #1

Radio VC #2

Site #1Slot #2

Radio VC #2

Site #2Slot #0

Radio VC#2

Site #2Slot #0

TDM port #2

4Site #3Slot #0

SDH VC#3

Site #3Slot #0

Radio VC#3

Site #1

Slot #1Radio VC #3

Site #1

Slot #2Radio VC #3

Site #2Slot #0

Radio VC#3

Site #2

Slot #0TDM port #3


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Exercise #2: Star Topology + In-Band

Objectives: 1. Demonstrate In Band Management in a simple Star Topology setup

2. Demonstrate TDM XC trails in a simple Star Topology setup

3. Demonstrate SDH XC trails in a simple Star Topology setup

Required Setup:



3. 8 WG to RF adaptors

4. 8 RF cables to interconnect outdoor units

5. 2 RF Splitters

6. 2 ETH cross cables

7. 4 ETH cables

8. 1 ETH switch

9. STM-1 Mezzanine


11. PDH Traffic Generator / Analyzer

12. 1 PDH cable

13. CLI Serial Cable

Setup Diagram:

Site

#1

Site

#2

Site

#3

Site

#4

3

4 5

6

7 Pipe (slot #3)

3 4 5 6 7 Pipe (slot #4)

3 4 5 6 7

MNG (slot #0)

3 4 5 6 7

MNG (slot #2)

3 4 5 6 7

MNG (slot #1)

3 4 5 6 7 MNG (slot #1)

3 4 5 6 7 MNG

(slot

#2)

Site

#3

Site #1

Site #2

Site #4

3 4 5 6

7MNG (slot #0)


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Setup Description:

Site #1(Primary Node) consists of 4 shelves:

Slot #1 + slot #2: Switch set to Managed Mode, Protection Disabled

Slot #3 + slot #4: Switch set to Pipe, Protection disabled

Site #3 is set to Protection Disabled. Site #2 is a standalone unit installed with an STM-1

Mezzanine and switch set to Managed mode. Site #4 is a standalone unit with switch set to

Managed mode.

This setup will assist us later to demonstrate protection scenarios. Therefore, it is important that

we establish first this setup and then continue to configure Protection.


1. Assuming all IDUs are set to OOB Management -

2. Establish the physical connection according to the setup scheme

3. Connect the radios to allow future protection, e.g. - similar frequencies on each side of

the link (only on links that are configured as Protection)

4. Do not connect site #1 slot #2 and site #3 slot #2 to radios yet

5. Make sure that each IDUs in the setup has a unique IP address, e.g. – avoid same IP on

multiple IDUs

6. Set management mode to In-Band, set the same MNG VLAN ID on all IDUs

7. Disconnect Site #2, #3 and #4 from ETH switch

8. Connect Site #1 slot #1 port #3 to slot #3 port #3

9. Connect Site #1 slot #1 port #4 to slot #4 port #3

10. Make sure ports #3 & #4 of site #1 slot #1 are members of VID #200

11. PING EMS to all Sites

12. Configure the following trails






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Trails:

Configure the XC trails using EMS

Trail#

Origin Going to Going to Going to Going to Going to

1Site #2Slot #0

STM-1 VC#1

Site #2Slot #0

Radio VC#1

Site #1Site #3RadioVC#1

Site #1Slot #1

Radio VC #1

Site #3Slot #1RadioVC#1

Site #3Slot #1

TDM port #1

2Site #2Slot #0

STM-1 VC#2

Site #2Slot #0

Radio VC#2

Site #1Site #3

RadioVC#2

Site #1Slot #4

Radio VC #1

Site #4Slot #0

Radio VC#1

Site #4Slot #0

TDM port #2

3Site #1Slot #1

TDM port #1


Site #4Slot #0

Radio #2

Site #4Slot #0

TDM port #16NR NR

4

Site #3Slot #1

TDM port#16

Site #3Slot #1

Radio VC#2

Site #1Slot #1

Radio VC#2

Site #1Slot #3

TDM port #3NR NR


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Exercise #3: Star Topology + In-Band: Protected

Objectives:1. Demonstrate In Band Management in a protected Star Topology

2. Demonstrate TDM & SDH XC trails a protected Star Topology

Required Setup:






6. 2 RF Splitters7. 3 ETH Y-Cables

8. STM-1 Mezzanine



11. 1 PDH cable


Setup Diagram:

Site

#1

Site

#2

Site

#3

Site

#4

3 4 5 6 7 Pipe (slot #3)

3 4 5 6 7 Pipe

(slot

#4)

3 4 5 6 7

MNG (slot #0)

3 4 5 6 7

MNG

(slot

#2)

3

4

5 6 7

MNG (slot #1)

3 4 5 6 7

MNG (slot #1)

3

4 5 6 7

MNG (slot #2)

Site #3

Site #1

Site #2

Site #4

3 4 5 6 7

MNG (slot #0)


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Setup Description:

Following the previous exercise, in this setup we demonstrate the same trails and features with

one exception – we shall do so through protected paths.

The first step would be enabling Protection on both slots (1&2) in Site #1 and Site #3.

Configuration:

1. Enable Protection on slots dedicated to be used as STBY (Mates).

This action will trigger a reset process…

2. Enable Protection on slots dedicated to be used as Active.

3. Connect the EMS to port #7 of Site #1 slot #1 and Site #1 slot #2 using ETH Y-Cable.

4. Connect por ts #3 of Site #1 slot #1 and Site #1 slot #2 to slot #3 port #3 using ETH Y-

Cable and a cross-cable.

5. Connect por ts #4 of Site #1 slot #1 and Site #1 slot #2 to slot #4 port #3 using ETH Y-

Cable and a cross-cable.

6. Make sure that ports #3 & #4 of Site #1 slot #1 are members of VID #200.

7. Make sure that all physical connections are properly established (radios, splitters etc.)

8. Copy to Mate (on both Active units). This will trigger a reset process on mate units.

9. PING EMS to all Sites

10. Configure the following trails (next page)





13. Using TDM / SDH tester, verify that all trails are valid.14. Swap between Active and STBY a few times and verify PING and trails are still functional.


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Trails:

• Configure the XC trails using EMS

• When configuring trails on protected slots, it is recommended to assign a trail to activeunits

Trail#

Origin Going to Going to Going to Going to Going to

1Site #2Slot #0

STM-1 VC#1

Site #2Slot #0

Radio VC#1


Site #1Slot #1

Radio VC #1


Site #3Slot #1

TDM port #1

2Site #2Slot #0

STM-1 VC#2

Site #2Slot #0

Radio VC#2


Site #1Slot #4

Radio VC #1

Site #4Slot #0

Radio VC#1

Site #4Slot #0

TDM port #2

3Site #1Slot #1

TDM port #1


Site #4Slot #0

Radio #2

Site #4Slot #0

TDM port #16NR NR

4

Site #3Slot #1

TDM port

#16

Site #3Slot #1

Radio VC

#2

Site #1Slot #1

Radio VC

#2

Site #1Slot #3

TDM port #3

NR NR


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Exercise #4: Star Topology + In Band +Protection + ACM

Objectives:1. Demonstrate TDM XC Trail Prioritization with ACM

Required Setup






6. 2 RF Splitters

7. 1 Variable Attenuator8. STM-1 Mezzanine



11. 1 PDH cable


Setup Diagram:

Site

#1

Site

#2

Site

#3

Site

#4

3 4 5 6 7 Pipe (slot #3)

3 4 5 6 7 Pipe (slot #4)

3 4 5 6 7

MNG (slot #0)

3

4

5

6 7

MNG

(slot

#2)

3

4 5 6 7

MNG (slot #1)

3 4 5 6 7

MNG (slot #1)

3

4

5

6

7

MNG (slot #2)

Site #3

Site #1

Site #2

Site #4

3 4 5 6 7

MNG (slot #0)


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Setup Description:

In this setup we demonstrate the TDM prioritization by narrowing down the link BW using ACM

script and variable RF attenuator.

Please note:

When you configure Trails on a protected site, it is recommended to assign trails to Active units.


1. Assign Adaptive script to radios between Site #1 slot #4 and Site #4. The script should limit

the BW to 7 to 8 E1s (15 Mbps).

2. Once the radio link is up with the new ACM script, make sure the MSE is optimal (Attenuator

is set to minimum attenuation).

3. Enable Protection on slots dedicated to be used as STBY (Mates). This action will trigger areset process…

4. Configure the following trails (next page). Please note the different priorities per trail.



6. Make sure you assign trails to unique radio VCs (you will need to configure the STM-1 traffic

generator accordingly)

7. With the help of the TDM / SDH tester, verify that all trails are configured OK end-to-end.

8. Increase the link loss by changing the position of the RF attenuator to the point where LOW

TDM ports are not valid.

9. Recover optimal link conditions (minimum attenuation) and verify that all TDM trails are valid

again.


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Trails:

Configure the XC trails using EMS

Trail # Origin Going to Going to Going to Going to Priority

1

Site #4Slot #0

TDM port#1

Site #4RadioVC#1

Site #1Slot #4

Radio VC#1

Site #1Slot #1

TDM port #1NR High

2

Site #4Slot #0

TDM port#2

Site #4

RadioVC#2

Site #1Slot #4

Radio VC#2

Site #1

Slot #1TDM port #2

NR High

3

Site #4Slot #0

TDM port#3

Site #4RadioVC#3

Site #1Slot #4

Radio VC#3

Site #1Slot #1

TDM port #3NR High

4

Site #4Slot #0

TDM port#4

Site #4RadioVC#4

Site #1Slot #4

Radio VC#4

Site #1Slot #1

TDM port #4NR High

5Site #4Slot #0

TDM port#5

Site #4RadioVC#5

Site #1Slot #4

Radio VC#5

Site #1Slot #1

Radio VC #1

Site #3Slot #1

TDM port #1Low

6

Site #4Slot #0

TDM port#6

Site #4RadioVC#6

Site #1Slot #4

Radio VC#6

Site #1Slot #1

Radio VC #2

Site #3Slot #1

TDM port #2Low


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Exercise #5: Ring Topology using RSTP Configuration

Objectives:1. Establish Ring Topology using RSTP Configuration

Required Setup:






6. STM-1 Mezzanine

7. 1 STM-1 Traffic Generator / Analyzer8. PDH Traffic Generator / Analyzer

9. 1 PDH cable


Setup Diagram:

Site

#3

Site

#2

Site

#4

Site

#1

Site #1

Site #3

Site #2

Site

#4

3

4

5 6 7Pipe

(slot

#2)

Pipe (slot #2)

Pipe

(slot

#3)

Pipe (slot #2)

3 4 5 6 7

3 4 5 6 7

MNG (slot #1)

3 4 5 6 7

MNG

(slot

#1)

3 4 5 6 7

MNG (slot #1)

3 4 5 6 7

3 4 5 6 7

3

4

5 6 7MNG (slot #0)


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Setup Description:

This exercise shows an RSTP ring topology with edge and non-edge nodes. The ring provides

protection in terms of MNG traffic and XC trails.

In this exercise we start from scratch – we shall construct the setup and then configure the RSTP

switches. Once the setup supports RSTP, we shall continue to configure the XC trails (following

exercises)


1. Establish the physical connections according to the setup scheme. Leave one link

disconnected to avoid loops (for example: site #3 to site #2)

2. (It is assumed that all IDUs are set to OOB MNG)

3. Configure In-Band MNG using VLAN #200 on all main IDUs

4. Connect extension IDUs (port #3) to Main I

Ceragon Exercise Handbook v2.4

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