Virtual Private LAN Services
7750 SR OS Services Guide Page 815
Mirroring
There are no restrictions for mirroring in I-VPLS or B-VPLS.
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 towards 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 (towards
customer CPE), 802.3ah EFM, SAA
• PBB uplinks using MPLS/SPP: 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)
CFM Support
There is no special 802.1ag CFM (Connectivity Fault Management) support for PBB. B-
component and I-components run their own maintenance domain and levels. CFM for I-
components run transparently over the PBB network and will appear as directly connected.
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