1. Network Demarcation in 802.1aj Alan McGuire IEEE 802.1 Eilat Interim May 2008

2. 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

3. Multiple TPMRs, Multiple Domains TPMR 802.1 Provider Bridge 802.1 Provider Bridge 802.3 Ext Link 802.3 Ext Link NNI 802.3 User Link 802.3 User Link Domain A Domain B 802.3 Ext 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

4. Multiple TPMRs, Multiple Domains TPMR 802.1 Provider Bridge 802.1 Provider Bridge 802.3 User Link 802.3 User Link NNI 802.3 Ext Link 802.3 Ext Link Domain A Domain B 802.3 Ext 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

5. Multiple TPMRs, Multiple Domains TPMR 802.1 Provider Bridge 802.1 Provider Bridge 802.3 Ext Link 802.3 Ext Link NNI 802.3 User Link 802.3 User Link Domain A Domain B 802.3 Ext 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

6. Options to consider-I UserSP1SP2User UNI ENNI User Link Extension Links Extension Links Would seem to be ok since -user link should prevent E-W OAM issues - SNMP issues

7. Options to consider-II UserSP1SP2User UNI ENNI Ext Link Extension Links Extension Links 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

8. Options to consider-III UserSPASPA’ User UNI ENNI Extension Links Extension Links Same as option I however limitation with A=A’ No access from SPa(1) to SPa(2) between 1 and 2 User Link OP1 Extension Links ENNI A=A’ Or A  A’

9. Options to consider-IV UserSPASPA’ User UNI ENNI Extension Links Extension Links Same issues as II User Link OP1 Extension Links ENNI A=A’ Or A  A’ User Link Ext Link

10. Options to consider-V SPA ENNI Extension Links Extension Links OP1 Extension Links ENNI mgmt OAM Can this be achieved via hierarchy?