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DRNI and G.8031 ETH SNCP interworking
Maarten Vissers
2011-05-09
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Introduction
The following slides illustrate the structure of an EC which is set up tosupport a protected E-Line service EVC in
One Carrier network (X)
Two Carrier networks (X,Y)
Each Carrier network includes access, metro and core domains
EC is set up with Dual Node Interconnections between Carrier Networks andoptionally also between domains
Between carrier X/carrier Y networks four nodes are used to interconnect
If EC in Carrier network is more than 1200 km, it is necessary to segment theprotection in the carrier network and deploy dual node interconnections between
carrier network segments As an example, between access/metro and metro/core domains two nodes are used to
interconnect (see slide 20)
Protected EC is not loop free and it is required to block forwarding ofVLAN/BSI frames on the alternative paths
This is normal behavior within protected P2P connections
MEF12.1: Ethernet Connection (EC) supports an EVC, EC Segment supports an OVC
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DRNI within the MEF Ethernet ServicesArchitecture
DataPlane
ControlPlane
ManagementP
lane
Transport Services Layer
Ethernet Services Layer
Application Services Layer
Ordering , Provisioning, Billing,Management and SupportDRNI is performed in this
layer, which is an ETH(S-VLAN) or ETH(BSI) layer
EC signals are transported over p2p VLAN, ESP, PW, transport-LSP, VC-
n, ODUk, mp2mp B-VLAN, mp2p LSP connections and 802.3 links
This layer supportsEthernet Connections (EC)
EC protection switching:G.8031 ETH SNCP
G.8032 ERPp802.1AXbq DRNI
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AccessAccess
Metro(partial mesh of
virtual links)
Core
(full mesh of
virtual links)Metro(EC ring)
3
4 6
5
B
7
8 10
9
A
2
1
Carrier X Network
UNI UNI
i EC Terminating or Bridging Node Physical link Ethernet virtual link supported by Transport Services layer connection
Multi-Domain Carrier Network Architecture
Aggregation & Encapsulation
Aggregation
Aggregation
EVC
EC
S-VLAN MAC Relay (in S-Comp orI-Comp) or BSI Relay (inside c6.11)
VLAN, ESP, LSP,PW, VC-n or ODUkconnection
A
2 4 6 8 10
B
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3
4 6
5
B
7
8 10
9
A
2
1
UNI UNI
SNC Protected P2P EC in Carrier X network (
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6.186..18
19.3
19.3
19.2
19.5
8.5
6.18
19.2
802.n
19.3
19.3
19.2
6.18
19.2
19.3
19.3
19.2
6..18
19.2
8.6.3 SVLAN MAC Relay
G.8031 ETH SNCP functionality insideS/I-Components and CBP
c6.11 CBP function is extended withG.8031 ETH SNCP functionality
CBP is extended with BSI SNCPMEP/MIP functionality to determineSF/SD status of W-BSI and P-BSI
c8.6.3 S-VLAN MAC Relay function isextended with G.8031 ETH SNCPfunctionality
19.3
8.6.1/2/4
19.3
19.2
19.5
8.6.6/7/8
8.5
6.9
19.3
8.6.1/2/4
19.3
19.2
19.5
8.6.6/7/8
8.5
6.9
19.3
8.6.1/2/4
19.3
19.2
19.5
8.6.6/7/8
8.5
6.9
6.14
G.8031 ETH SNCPW P N
SF/SD
SF/SD
W/P-SVLANSNCP MEP
SVLAN
SP MEP
19.2
802.n
6.7
APS
S/I-Component with S-VLAN SNCP
6.1519.2
802.n
6.7
6.10
19.2
802.n
6.7
6.1519.2
802.n
6.7
6.10
19.2
802.n
6.7
ONP PIP PNP ONP PIP PNP
CNP
6.11
G.8031 ETH SNCPW P N
SF/SD
SF/SD
W/P-BSI
SNCP MEP
BSISP MEP
6.7
APS
CBP with BSI SNCP
BVLANSNCP MEP
8.6.3BVLAN MAC Relay
6.186..17
6..17
adminPointToPointMAC parameter set to
ForceTrue; no C-MAC/B-MAClearning and flushing
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Core
(full mesh)
Access
Core
(full mesh)
Metro(EC ring)
3
4 6
5
A
2
1
Access
Metro
(partial mesh)
B
10
9
13 14
11 12
7
8
Carrier X Network
Carrier Y Network
E-NNI
UNI
UNI
DRNI
i EC Terminating or Bridging Node Physical link Ethernet virtual link supported by Transport Services layer connection
Multi-Carrier Network Architecture
Node types:PB, IB-BEB, IB-BEB-TE,
TB, S-PE, B-BEB
Network types:
PBN, PBBN, PBB-TEN,SDH, OTN, MPLS(-TP)
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3
4 6
5
A
2
1
B
10
9
13 14
11 12
7
8
Carrier X Network
Carrier Y Network
E-NNI
UNI
UNI
DNI protected P2P EC in Carrier X and Y networks
blockforwardingof frames in
EC
DNI ProtectedP2P EC
VLAN/BSI
frame in EC
E-Line EVC
SNC Protected P2P EC Segment in
Carrier X network (
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Distributed ETH SNCP architecture
ETH SNCP has got distributedcontrol in E-NNI nodes (DSNCP)
Carrier X ETH APS may terminate inDSNCP process in nodes 11 or 12
Carrier Y ETH APS may terminate inDSNCP process in nodes 13 or 14
Either W_MEP/P_MEP* pair, orW_MEP*/P_MEP pair is active
The DRNI status controls if
carrier X APS terminates in 11 or 12 carrier Y APS terminates in 13 or 14
carrier X active DSNCP MEP pair
carrier Y active DSNCP MEP pair
11 12
13 14
DSNCP DSNCP
DSNCPDSNCP
P_MEP W_MEP
P_MEP W_MEP
Carrier XETH SNCP
Carrier YETH SNCP
DRNIDRNI
DRNIDRNI
W_MEP* P_MEP*
W_MEP* P_MEP*
S-VLAN EC
or BSI EC
E-NNI
APS
APS
NOTE MEPs for DRNI part are outside scope of this contribution
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Distributed ETH SNCP architectureconfiguration examples
11 12
13 14
DSNCP DSNCP
DSNCPDSNCP
P_MEP W_MEP
P_MEP W_MEP
Carrier XETH SNCP
Carrier YETH SNCP
DRNIDRNI
DRNIDRNI
W_MEP* P_MEP*
W_MEP* P_MEP*
E-NNI
APS
APS
11 12
13 14
DSNCP DSNCP
DSNCPDSNCP
P_MEP W_MEP
P_MEP W_MEP
Carrier XETH SNCP
Carrier YETH SNCP
DRNIDRNI
DRNIDRNI
W_MEP* P_MEP*
W_MEP* P_MEP*
E-NNI
APS
APS
X
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Distributed ETH SNCP architectureconfiguration examples
11 12
13 14
DSNCP DSNCP
DSNCPDSNCP
P_MEP W_MEP
P_MEP W_MEP
Carrier XETH SNCP
Carrier YETH SNCP
DRNIDRNI
DRNIDRNI
W_MEP* P_MEP*
W_MEP* P_MEP*
E-NNI
APS
APS
11 12
13 14
DSNCP DSNCP
DSNCPDSNCP
P_MEP W_MEP
P_MEP W_MEP
Carrier XETH SNCP
Carrier YETH SNCP
DRNIDRNI
DRNIDRNI
W_MEP* P_MEP*
W_MEP* P_MEP*
E-NNI
APS
APS
X
X
X
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Network Operator MEP functions
NO_MEP functions are located on theE-NNI ports
The DRNI status controls which E-NNI port is the active port for an EC
The NO_MEP on the active E-NNI portis used to monitor the EC Segment inthe carrier network
11 12
13 14
DSNCP DSNCP
DSNCPDSNCP
NO_MEP
DRNIDRNI
DRNIDRNI
S-VLAN ECor BSI EC
E-NNINO_MEP*
NO_MEP***NO_MEP**
NO_MEPNO_MEP***NO_MEP*NO_MEP**
EC Segment
Far end NO_MEP
SP_MEP
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DSNCP, DRNI, SNCP MEP and NO MEPfunctionality inside S/I-Components
DSNCP and DRNI both controlthe EC(SVLAN) connectivity
DSNCP process interacts withSNCP process at far end of SNCprotected EC Segment
DSNCP process requirementsand behaviour is TBD
DRNI process has to beperformed prior to the NO_MEPand SP_MIP functions
DRNI differs from common LAGin that LAG distributes MACframes independent of the ECthey belong to, while DRNIcontrols EC connectivity
19.3
8.6.1/2/4
19.3
19.2
19.5
8.6.6/7/8
8.5
6.9
8.6.3 SVLAN MAC Relay
19.3
8.6.1/2/4
19.3
19.2
19.5
8.6.6/7/8
8.5
6.9
19.3
8.6.1/2/4
19.3
19.2
19.5
8.6.6/7/8
8.5
6.9
19.3
8.6.1/2/4
19.3
19.2
19.5
8.6.6/7/8
8.5
6.9
DSNCPW P* N
SF/SD
SF/SD
W/P_S-VLANSNCP MEP
S-VLAN
NO_MEP
APS
S/I-Component with S-VLAN DSNCP and DRNI
ONP, PNP,PIP spec.
ONP, PNP,PIP spec.
19.3
8.6.1/2/4
19.3
19.5
8.6.6/7/8
8.5
6.9
ONP, PNP,PIP spec.
CNP spec.
DRNI
CNP spec.E-NNI
to/from DRNI peer node
S-VLANSP_MIP
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6.186..18
19.3
19.3
19.2
19.5
8.5
6.18
19.2
802.n
19.3
19.3
19.2
6.18
19.2
19.3
19.3
19.2
6..18
19.2
DSNCP, DRNI, SNCP MEP and NO MEPfunctionality inside CBP
DSNCP and DRNI bothcontrol the EC(BSI)connectivity
c6.11 CBP function supportsDSNCP and DRNI within aBSI Relay type of process
with SID based forwardingand protection (but no MACbased forwarding)
Default Backbone Destinationparameter has to be switchedtogether with ;i.e. WP
6.11
DSNCPW P* N
SF/SD
SF/SD
W/P-BSISNCP MEP
BSI
NO_MEP
6.7
APS
CBP with BSI DSNCP & DRNI
B-VLAN
MEP
8.6.3B-VLAN MAC Relay
6.186..17
6..17
6.18
19.3
19.3
6.18
19.2
DRNI
19.3
19.3
19.2
19.5
8.5
6.18
19.2
802.n
6.7
6.18
to/from DRNI peer node
E-NNI
BSISP_MIP
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Some considerations on items in slides 7-10 of http://www.ieee802.org/1/files/public/docs2010/new-
haddock-resilient-network-interconnect-addressing-1110-v1.pdf
http://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdf8/2/2019 Axbq Vissers Drni and Sncp Inter Working 0511 v00
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Working & protection paths in area network
S
S S
SS
S
C
DSNCP
DRNI
S
DSNCP
DRNI
B
B B
BB
CBP
DSNCP
DRNI
CBP
DSNCP
DRNI
BB
SNCP
CBP
SNCP
S
B B
BB
S
DSNCP
DRNI
S
DSNCP
DRNI
SNCP
BB
CBPCBPPIPPIP
B
CBP
PIP
CBP
PIP
CBPCBPPIPPIP
Protection
SVLAN
Working
SVLAN
Protection
SVLAN
Working
SVLAN
Protection
BSI
Working
BSI
http://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdf slide 7
B-BEB
B-B
EB B
-BEB
IB-BEB
or
IB-BEB
-TE
IB-BEBorIB-BEB-TE
IB-B
EBorIB-BEB-TE
PEB
PB PB
PBB: each PIP and CBP have different addressPBB-TE: each PIP/CBP pair has different address
http://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdf8/2/2019 Axbq Vissers Drni and Sncp Inter Working 0511 v00
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Backbone Edge Bridge at an S-tagged RNNIPoint-to-Point Backbone Service Instances
Four disjoint BVLANs or TESIs ZA
ZB
AB(DSNCP)
AB(DNRI)
PBB: Four disjoint BSIs, one per
BVLAN Fixed Default Backbone Destination
values
PBB: Each PIP and CBP havedifferent address
PBB-TE: Each PIP/CBP pair hasdifferent address
p2p SNC protected EC does notrequire MAC learning
adminPointToPointMAC parameterset to ForceTrue in PIPshttp://www.ieee802.org/1/files/public/do
cs2010/new-haddock-resilient-network-
interconnect-addressing-1110-v1.pdf slides 8, 9
S
B B
BB
S
DSNCP
DRNI
S
DSNCP
DRNI
SNCP
BB
CBPCBPPIPPIP
B
CBP
PIP
CBP
PIP
CBPCBPPIPPIP
Protection
SVLAN
Working
SVLAN
IB-BEB
or
IB-BEB-TE
IB-BEBorIB-BEB-TE
IB-B
EBorIB-BEB-TE
http://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdf8/2/2019 Axbq Vissers Drni and Sncp Inter Working 0511 v00
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E-Line Services and Point-to-Point OVCs
Six BVLANs or TESIs
Six BSIs, one per BVLAN
Working SVLAN EC Segmentcan have 4 variations
DB
DBA
CDB
CDBA
Protection SVLAN EC Segmentcan have 4 variations
DCAB
DCA CAB
CA
W/P EC Segment can beextended; this is a newcapability. Requires further
study.
http://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-
interconnect-addressing-1110-v1.pdf slide 10
B B
BB
S
DSNCP
DRNI
S
DSNCP
DRNI
BB
CBPCBP
PIPPIP
CBPCBP
PIPPIP
IB-BEBorIB-BEB-TE
IB-BEBorIB-BEB-TE
S
DSNCP
DRNI
S
DSNCP
DRNI
B B
CBP CBP
PIP PIP
CBP CBP
PIP PIP
IB-B
EBorIB-BEB-TEI
B-BEBorIB-BEB-TE
Protection
SVLAN
Working
SVLAN
http://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdfhttp://www.ieee802.org/1/files/public/docs2010/new-haddock-resilient-network-interconnect-addressing-1110-v1.pdf8/2/2019 Axbq Vissers Drni and Sncp Inter Working 0511 v00
19/20
19
Long EC Segments, >1200 km
Compact DRNI
ETH SNCP & DRNI P t t d EC
8/2/2019 Axbq Vissers Drni and Sncp Inter Working 0511 v00
20/20
20
3
4 6
5
A
2
1
B
10
9
13 14
11 12
7
8
Carrier X Network
Carrier Y Network
E-NNI
UNI
UNI
DNI protected P2P EC in Carrier X and Y networks
blockforwardingof frames in
EC
DNI ProtectedP2P EC
VLAN/BSI
frame in EC
E-Line EVC
OVC OVC
ETH SNCP & DRNI Protected EC (S-VLAN, BSI)EC-Segments >1200 km
Is it possible to usea special versionof DRNI here?
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