The pbb mac-withdraw mac-opt-compatible command enables a B-VSI to send MAC Withdraw messages that carry the 0x406 TLV.
The undo pbb mac-withdraw mac-opt-compatible command restores the default configuration.
By default, the MAC Withdraw messages sent by a B-VSI carry a vendor-specific TLV.
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.
<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