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OAM for L2 VPN Networks Using CFM and VCCV

OAM for L2 VPN Networks Using CFM and VCCV. Olen Stokes Shane Amante Pranjal Dutta Yetik Serbest. IETF 70. 4 December 2007. draft-stokes-l2vpn-cfm-vccv-oam-00. Objectives. Reach working group consensus on how to utilize IEEE 802.1ag CFM and IETF VCCV in a L2 VPN environment

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OAM for L2 VPN Networks Using CFM and VCCV

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  1. OAM for L2 VPN Networks Using CFM and VCCV Olen Stokes Shane Amante Pranjal Dutta Yetik Serbest IETF 70 4 December 2007 draft-stokes-l2vpn-cfm-vccv-oam-00

  2. Objectives • Reach working group consensus on how to utilize IEEE 802.1ag CFM and IETF VCCV in a L2 VPN environment • Allow service providers to determine if there are any additional OAM capabilities required draft-stokes-l2vpn-cfm-vccv-oam-00 Page 2

  3. Assumptions • Must consider both full mesh VPLS and hierarchical H-VPLS environments • Must consider Ethernet and PW access networks • Adhere to existing L2 VPN standards draft-stokes-l2vpn-cfm-vccv-oam-00 Page 3

  4. Concerns • Diagnosing VPLS forwarder problems • How do we verify the association of MACs with PWs? • Reporting detected mismatches • Is there a need to be able to reply via the control plane? draft-stokes-l2vpn-cfm-vccv-oam-00 Page 4

  5. Potential Issues • Reference model for H-VPLS node • RFC 4664 shows a single VPLS forwarder with a single emulated LAN interface • How do point-to-point PWs connect to this reference model? • Placement of maintenance points with regards to the reference model • Inside reference model at emulated LAN interface or outside of reference model? draft-stokes-l2vpn-cfm-vccv-oam-00 Page 5

  6. Example H-VPLS Network PE2-rs PW-12 PW-1 CE-1 MTU1-s PE1-rs PW-23 PW-13 PW-3 PE3-rs MTU3-s CE-3 draft-stokes-l2vpn-cfm-vccv-oam-00 Page 6

  7. VPLS Forwarder VPLS Forwarder VPLS Forwarder VPLS Forwarder Emulated LAN Interface Bridge Bridge Bridge Bridge RFC4664 Reference Model PW-1 PW-13 PW-3 Emulated LAN MTU1-s PE1-rs PE3-rs MTU3-s CE-1 CE-3 draft-stokes-l2vpn-cfm-vccv-oam-00 Page 7

  8. VPLS Forwarder VPLS Forwarder VPLS Forwarder VPLS Forwarder Emulated LAN Interface MEP MEP MEP Bridge Bridge Bridge Bridge Reference Model with CFM PW-1 PW-13 PW-3 Emulated LAN MEP MTU1-s PE1-rs PE3-rs MTU3-s CE-1 CE-3 draft-stokes-l2vpn-cfm-vccv-oam-00 Page 8

  9. Next Steps • Reach working group consensus on applying the RFC 4664 reference model to a H-VPLS node draft-stokes-l2vpn-cfm-vccv-oam-00 Page 9

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