network demarcation in 802.1aj
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Network Demarcation in 802.1aj. Alan McGuire IEEE 802.1 Eilat Interim May 2008. Introduction. Annex K of 802.1aj contains some use cases and invites suggestions for more! Following slides suggest some other scenarios Provider to provider cases rather than enterprise to provider - PowerPoint PPT PresentationTRANSCRIPT
Network Demarcation in 802.1ajAlan McGuire
IEEE 802.1 Eilat Interim May 2008
Introduction
• Annex K of 802.1aj contains some use cases and invites suggestions for more!
• Following slides suggest some other scenarios– Provider to provider cases rather than enterprise to provider– Also current models do not consider End 2 End
• Discuss – Are they allowed in the 802.1aj model?– Can they be managed?– Should any be included as Use Cases in annex K?
• Use Cases– Multiple TPMRs, Multiple Domains– Use with PBB
Multiple TPMRs, Multiple Domains
TPMR TPMR TPMR TPMR802.1 Provider
Bridge802.1 Provider
Bridge
802.3Ext Link
802.3Ext Link
NNI NNI
802.3User Link
802.3User Link
Domain ADomain B
802.3Ext Link
Notes-Management of Domain A is separate from that of Domain B-Can TPMRs in Domain B be managed in this scenario? > need something between them-NNI is UNI in Enterprise-Provider examples
Multiple TPMRs, Multiple Domains
TPMR TPMR TPMR TPMR802.1 Provider
Bridge802.1 Provider
Bridge
802.3User Link
802.3User Link
NNI NNI
802.3Ext Link
802.3Ext Link
Domain ADomain B
802.3Ext Link
Notes-Management of Domain A is separate from that of Domain B-Can TPMRs in Domain B be managed in this scenario? > need something else
Multiple TPMRs, Multiple Domains
TPMR TPMR TPMR TPMR802.1 Provider
Bridge802.1 Provider
Bridge
802.3Ext Link
802.3Ext Link
NNI NNI
802.3User Link
802.3User Link
Domain ADomain B
802.3Ext Link
Notes-Management of Domain A is separate from that of Domain B-Can TPMRs in Domain B be managed in this scenario?-NNI is UNI in Enterprise-Provider examples
802.1ah encaps
Options to consider-I
User SP1 SP2 User
UNI UNIENNI
User Link
ExtensionLinks
ExtensionLinks
Would seem to be ok since-user link should prevent E-W OAM issues- SNMP issues
Options to consider-II
User SP1 SP2 User
UNI UNIENNI
Ext Link
ExtensionLinks
ExtensionLinks
Would seem to present problems since Ext Link will likely:-not present SPx access to SPy TPMRs for E-W OAM beyond pt of connectivity-not prevent SPx access via SNMP stack to SPy TPMRs
User Link User Link
Options to consider-III
User SPA SPA’ User
UNI UNIENNI
ExtensionLinks
ExtensionLinks
Same as option I however limitation with A=A’No access from SPa(1) to SPa(2) between 1 and 2
User Link
OP1
ExtensionLinks
ENNI
A=A’OrAA’
Options to consider-IV
User SPA SPA’ User
UNI UNIENNI
ExtensionLinks
ExtensionLinks
Same issues as II
User Link
OP1
ExtensionLinks
ENNI
A=A’OrAA’
User LinkExt Link
Options to consider-V
SPA SPA
ENNI
ExtensionLinks
ExtensionLinks
OP1
ExtensionLinks
ENNI
mgmtmgmt
OAM
Can this be achieved via hierarchy?