pbb mac-withdraw mac-opt-compatible

Format

pbb mac-withdraw mac-opt-compatible

undo pbb mac-withdraw mac-opt-compatible

Parameters

None

Views

VSI-BVSI view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
l2vpn	write

Usage Guidelines

Usage Scenario

In PBB VPLS, VSIs dynamically learn user MAC and B-MAC addresses to guide traffic forwarding. To prevent traffic loss caused by delayed MAC entry refreshing when an AC interface, I-VSI PW, or B-VSI PW fails, configure PBB VPLS MAC Withdraw.

PBB VPLS MAC Withdraw is implemented by sending MAC Withdraw messages. MAC Withdraw messages are sent by I-VSIs and B-VSIs. The messages sent by a B-VSI are used to clear the B-MAC addresses learned by other B-VSIs. By default, the MAC Withdraw messages sent by a B-VSI carry a vendor-specific TLV. To enable a B-VSI to send MAC Withdraw messages that carry the 0x406 TLV, run the pbb mac-withdraw mac-opt-compatible command. Two devices can communicate only if they use the same TLV in MAC Withdraw messages.

Prerequisites

A B-VSI has been enabled using the pbb b-vsi enable command.

Example

# Enable a B-VSI to send MAC Withdraw messages that carry the 0x406 TLV.

<HUAWEI> system-view
[~HUAWEI] mpls
[*HUAWEI-mpls] quit
[*HUAWEI] mpls l2vpn
[*HUAWEI-l2vpn] quit
[*HUAWEI] vsi vsi2
[*HUAWEI-vsi-vsi2] pwsignal ldp
[*HUAWEI-vsi-vsi2-ldp] vsi-id 10
[*HUAWEI-vsi-vsi2-ldp] quit
[*HUAWEI-vsi-vsi2] pbb b-vsi enable
[*HUAWEI-vsi-vsi2] pbb mac-withdraw mac-opt-compatible