AVIAT NETWORKS

MICROWAVE NETWORKING WITH CARRIER ETHERNET AND IP/MPLS

Gary Croke | AVIAT NETWORKS

AVIAT NETWORKS

CARRIER ETHERNET? MPLS?

WHAT ARE THESE? HOW SIMILAR/DIFFERENT?

DO I NEED BOTH? HOW DO I APPLY?

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INTRO TO CE AND MPLS

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IP TRAFFIC GROWTH IMPACT ON MOBILE AND ENTERPRISE

global mobile data traffic…

18-FOLD INCREASE BY 2016

IP SERVICES GROWTH DRIVES THE NEED FOR ADVANCED IP NETWORKING

global data center IP traffic…

4-FOLD INCREASE BY 2016

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PREDICTABLE

TDM IP

yes

SECURE yes

RESILIENT yes

COST EFFECTIVE no yes

SCALABLE no yes

NEW SERVICES no yes

no

not inherently

no

WHY CE AND MPLS?

yes

yes

yes

yes

yes

yes

CE/MPLS

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CARRIER ETHERNET

ROBUST CARRIER CLASS NETWORKING ADDED TO WHAT WAS A FORMER LAN TECHNOLOGY

STANDARD

SERVICES

SCALABILITY QUALITY

OF SERVICE

SERVICE

MANAGEMENT RELIABILITY

CARRIER

ETHERNET

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APPLYING CARRIER ETHERNET

UNI

EVC1

EVC2

CoS 1

CoS 2 e.g.

10Mbps

Port

3Mbps

for Voice

6Mbps for

Internet

1Mbps

for Data

CE VIRTUAL CIRCUITS

E-Line Service

CE VIRTUAL CIRCUITS

E-LAN Service

E-Tree Service

L2 VPN

CARRIER ETHERNET CAN BE USED AS A (L2) TRANSPORT TO HIGHER

LAYER SERVICES OR TO PROVIDE A USER SERVICE DIRECTLY

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MPLS

– Label switching virtual tunnels

(LSPs) PREDICTABILITY

– Control Plane to set up

SCALABILITY

– Traffic engineering and QoS

SERVICE QUALITY ASSURANCE

– MPLS fast reroute RELIABILITY

LSP

LSP

MPLS IS A BRIDGE BETWEEN L2 AND L3

– ADDING PREDICTABLE ‘CIRCUIT SWITCHED’ BEHAVIOR FOR IP TRAFFIC

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APPLYING MPLS

L3 VPN

PSEUDOWIRES Ethernet

TDM

ATM

FR

Ethernet

TDM

ATM

FR

L2 VPN

securely partitioned

multiple routed networks

securely partitioned multiple

switched networks

multiservice transport using

MPLS Pseudowires (PWE3)

MPLS COMBINES THE BEST OF L2 AND L3 INTO

A SINGLE MULTIPURPOSE, SCALABLE, NETWORK

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CE AND MPLS TRANSPORT TECHNOLOGY

CONSIDERATIONS

CARRIER ETHERNET TRANSPORT MPLS TRANSPORT

OSI Layer L2 L2/3 (L3 signaling)

Signaling and routing protocols needed Simple - None required More Complex (LDP, RSVP, RSVP-TE,

OSPF/ISIS/BGP)

Flexible network capacity and granularity

(xbps) Yes (Ethernet virtual circuits) Yes (virtual LSPs)

QoS support and traffic management Yes Yes (Advanced)

High-availability and traffic failover Maybe (<50mS protection e.g. G.8032) Maybe (Can be engineered e.g. MPLS

FRR)

End to end service provisioning Yes (vendor specific tools) Yes (vendor specific tools)

Performance monitoring and fault

management

Yes (Full standards based: Y.1731,

802.1ag) Partial (LSP Ping, BFD)

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CARRIER ETHERNET TRANSPORT MPLS TRANSPORT

Network Scalability (size) Yes (Med) Yes (High)

Topology Suitability Ideal for Linear, Rings, Trees Better for Mesh and Hybrid

Cost (per access site) Lower ($2-4K per site) Higher ($3-6K per site)

CE AND MPLS PRACTICAL DEPLOYMENT

CONSIDERATIONS

CE AND MPLS ALSO BE DEPLOYED TOGETHER…MORE ON THIS LATER

CE AND MPLS ALSO BE DEPLOYED TOGETHER…MORE ON THIS LATER

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WHAT DOES CE/MPLS MEAN FOR YOUR MICROWAVE?

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CE AND MPLS MEAN DIFFERENT THINGS FOR MW

MPLS CARRIER ETHERNET

MICROWAVE:

- “transport” MPLS

- integrated with router

MICROWAVE:

- implement carrier ethernet

- less integrated with router

RFU

IDU

ROUTER

MPLS

ROUTER/SWITCH

CE

RFU

IDU

ASIDE: MPLS AND CE NEEDED FOR SOME NETWORKS. CE-ONLY CAN BE LESS EXPENSIVE

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EITHER WAY…

MICROWAVE IS NO LONGER A DUMB PIPE

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AND MPLS WORKS ON HYBRID OR IP-ONLY RADIOS

HYBRID

RADIO

TDM

IP with CE

or MPLS

IP-ONLY

RADIO

TDM IP with

MPLS IP

IP

TDM PW

IP-ONLY RADIO OFTEN MANDATES MPLS (PWE)

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AND, HYBRID IS MOST ALWAYS CHEAPER

COST DIFFERENCE FOR 50 SITES = $222,000 (TDM GENERALLY NOT INCLUDED IN BASE PRICING COMPARISON)

HYBRID SOLUTION COST IP-ONLY SOLUTION COST

TDM CARD

ETHERNET

PWE CARD

ETHERNET

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FOR MPLS OR CARRIER ETHERNET…

Shaper

ADVANCED QOS AND CONGESTION MANAGEMENT IS NECESSARY

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Hype Alert

ROUTER INTEGRATION REQUIREMENTS (MPLS-ONLY)

common management system between

router and microwave

propagation of failures across network, including

INTEROP with router on failure communication / port

shutdown

inline / automatic communication to router of

bandwidth and bandwidth changes (ACM) HYPE ALERT

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AND TRANSITIONING TO IP CAN BE EASIER

WITH HYBRID RADIO

TDM link

Ethernet over TDM

TDM

radio

TDM

radio

TDM Ethernet TDM Ethernet

Portal Craft Tool

NMS NMS

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CUSTOMER DEPLOYMENT MODELS AND EXAMPLES

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TYPICAL CUSTOMER DEPLOYMENT SCENARIOS

E-LINE/E-LAN/E-TREE

TDM

IP VPN

ADVANCED ROUTING

FULL CE + IP/MPLS

E-LINE/E-LAN/E-TREE

CARRIER ETHERNET

IP

MPLS

SCENARIO 4

E-LINE/E-LAN/E-TREE

TDM

IP VPN

ADVANCED ROUTING

BASIC CE + IP/MPLS

E-LINE

CARRIER ETHERNET

IP

MPLS

TDM

IP ROUTING

BASIC CE + IP

E-LINE

CARRIER ETHERNET

IP

E-LINE/E-LAN/E-TREE

FULL CE

SCENARIO 3 SCENARIO 2 SCENARIO 1

E-LINE/E-LAN/E-TREE

CARRIER ETHERNET

USER/

NETWORK

SERVICES

TRANSPORT

SERVICES

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UTILITY CUSTOMER EXAMPLE

CUSTOMER CRITERIA:

transport both TDM and ETHERNET

support multiple ETHERNET-based networks:

telemetry and remote monitoring

teleprotection (TDM)

corporate network

network management

interconnect multiple sites in

a linear topology

provide link and equipment

redundancy

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UTILITY CUSTOMER IMPLEMENTATION

NETWORK SOLUTION SUMMARY:

hybrid microwave radio

(TDM and ETHERNET)

fully protected configuration

layer 2 (VLAN based) connectivity

between microwave sites

WHY?

lowest transport cost

minimal provisioning

basic network segmentation

with some scalability

E-LINE/E-LAN/E-TREE

FULL CE

SCENARIO 1

E-LINE/E-LAN/E-TREE

CARRIER ETHERNET

USER/

NETWORK

SERVICES

TRANSPORT

SERVICES

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PUBLIC SAFETY CUSTOMER EXAMPLE

CUSTOMER CRITERIA:

transport both TDM and ETHERNET

provide network and equipment redundancy

support multiple networks

(p25, corporate, paging)

prioritize traffic for selected applications

meet strict performance targets for p25

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PUBLIC SAFETY CUSTOMER IMPLEMENTATION

NETWORK SOLUTION SUMMARY:

hybrid microwave radio

(TDM and ETHERNET)

redundant routers - MPLS L2 VPN and IP

policing and priority scheduling on both

routers and radios

WHY?

IP/MPLS better fit for mesh/partial

mesh topologies

IP provides load balancing and protection

MPLS L2 VPN for segregate customer traffic

USER/

NETWORK

SERVICES

TRANSPORT

SERVICES

E-LINE/E-LAN/E-TREE

TDM

IP VPN

ADVANCED ROUTING

BASIC CE + IP/MPLS

E-LINE

CARRIER ETHERNET

IP

MPLS

SCENARIO 3

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MOBILE CUSTOMER EXAMPLE

CUSTOMER CRITERIA:

transport both TDM and ETHERNET

support multiple mobile services

(2G/3G and growing LTE)

connect site routers to aggregation sites

provide link and equipment redundancy

scalability for future traffic growth

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E-LINE/E-LAN/E-TREE

TDM

IP VPN

ADVANCED ROUTING

FULL CE + IP/MPLS

E-LINE/E-LAN/E-TREE

CARRIER ETHERNET

IP

MPLS

SCENARIO 4

MOBILE CUSTOMER EXAMPLE IMPLEMENTATION

NETWORK SOLUTION SUMMARY:

hybrid microwave radio (TDM and ETHERNET)

redundant radios supporting QoS, VLANs and

layer 1 link aggregation

MPLS cell site routers

WHY?

CE Access - keeps L2 on access simple (cost,

operations) and minimizes failure points

MPLS CSR – visibility to manage IP traffic for

mobile data (3G, LTE) using L2/L3 VPNs

USER/

NETWORK

SERVICES

TRANSPORT

SERVICES

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SUMMARY

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What to Do

now?

Design your

microwave and

IP network

together

We can help