display pbb backbone-destination-mac

Function

The display pbb backbone-destination-mac command displays VSIs where B-DMAC addresses are configured.

Format

display pbb backbone-destination-mac [ bDMacAddr ]

Parameters

Parameter	Description	Value
bDMacAddr	Specifies a B-DMAC address. If this parameter is not specified, VSIs where all B-DMAC addresses are configured will be displayed.	The value is a 12-digit hexadecimal number, in the format of H-H-H. Each H is 4 digits. If an H contains fewer than 4 digits, the left-most digits are padded with zeros. For example, e0 is displayed as 00e0. A MAC address cannot be FFFF-FFFF-FFFF or a broadcast MAC.

Parameter

Description

Value

bDMacAddr

Specifies a B-DMAC address.

If this parameter is not specified, VSIs where all B-DMAC addresses are configured will be displayed.

The value is a 12-digit hexadecimal number, in the format of H-H-H. Each H is 4 digits. If an H contains fewer than 4 digits, the left-most digits are padded with zeros. For example, e0 is displayed as 00e0. A MAC address cannot be FFFF-FFFF-FFFF or a broadcast MAC.

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
l2vpn	read

Usage Guidelines

Usage Scenario

In PBB VPLS, PEs and SPEs on the backbone network need to learn only the virtual B-MAC addresses (including B-SMAC and B-DMAC addresses), which reduces the number of MAC addresses learned and enhances network performance. To check information about VSIs where B-DMAC addresses are configured, run the display pbb backbone-destination-mac command.

Precautions

If the pbb backbone-destination-mac command has not been run to configure B-DMAC addresses, the display pbb backbone-destination-mac command output will be blank.

Example

The actual command output varies according to the device. The command output here is only an example.

# Display VSIs where B-DMAC address 2-2-2 is configured.

<HUAWEI> display pbb backbone-destination-mac 2-2-2
B-DMAC         VSI Name                        Flag
00e0-fc00-1234 1                               First

# Display VSIs where all B-DMAC addresses on a device are configured.

<HUAWEI> display pbb backbone-destination-mac
Total B-DMAC Number: 1
-------------------------------------------------------
B-DMAC         VSI Name                        Flag
00e0-fc00-1234 1                               First

**Table 1** Description of the **display pbb backbone-destination-mac** command output
Item	Description
B-DMAC	B-DMAC address.
VSI Name	Name of the I-VSI where a B-DMAC address is configured.
Flag	Flag indicating whether it is the first or second B-DMAC address.
Total B-DMAC Number	Total number of B-DMAC addresses.