Brocade Multi-Service IronWare Switching Configuration Gui Manual de usuario descargar pdf (Pagina 331)

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Multi-Service IronWare Switching Configuration Guide 301

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802.1ag over PBB OAM

B-VLAN MAs (Figure 53)

• B-VLAN MAs manage the B-VLANs within a single PBBN.

• The scope of these 802.1ag frames is the PBB network only. These frames do not leave the

PBB network.

• These CFM frames are only visible within the PBBN where the B-TAG is being processed.

I-SID MAs (Figure 53)

• Backbone service instance CFM frames are only visible within the PBBN where the I-TAG is

being processed.

PBB LAN Link Segment MAs (Figure 53)

• PBB LAN link MAs optionally manage links within a PBBN.

FIGURE 53 PBB MA Frames

Types of MEPs and MIPs

Associated with the MAs described in the previous section, there are MEPs and MIPs. Support is

provided for the following types of MIPs and MEPs on the appropriate interfaces:

• MIPs and up/down MEPs for C-VIDs: Where C-Tags are processed

• MIPs and up/down MEPs for S-VIDs: Where S-Tags are processed

• Up/down MEPs for I-SIDs: Where I-Tags are processed

• MIPs and up/down MEPs for B-VIDs: Where B-Tags are processed

• Down MEPs for Link MAs

Hierarchical Fault Detection Operation

Ethernet OAM uses a hierarchical fault detection scheme.

• Customer scope: Uses C-VLAN MA and Link MA

• PB scope: Uses S-VLAN MA and Link MA

• PBB scope: Uses B-VLAN MA, I-SID MA, and Link MA

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