OAM Commands

All VPLS OAM commands may be used in both I-VPLS and B-VPLS instances.

I-VPLS

• The following OAM commands are meaningful only toward another I-VPLS service instance (spoke-SDP in I-VPLS):

  LSP-ping, LSP-trace, SDP-ping, SDP-MTU

• The following I-VPLS OAM exchanges are transparently transported over the B-VPLS core:

  SVC-ping, MAC-ping, MAC-trace, MAC-populate, MAC-purge, CPE-ping (toward customer CPE), 802.3ah EFM, SAA

• PBB up links using MPLS/SAP: there are no PBB specific OAM commands.

B-VPLS

In case of Ethernet switching backbone (B-SAPs on B-VPLS), 802.1ag OAM is supported on B-SAP, operating on:

• The customer level (C-SA/C-DA and C-type layer)

• The tunnel level (B-SA/B-DA and B-type layer)