Qtech QSW-2910-09T-POE-AC/DC [120/212] Configure the speed limit of sending bpdu of specified interface

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8.2.14 Configure the speed limit of sending BPDU of specified

interface

Restrict STP occupying bandwidth by restricting the speed of sending BPDU packet. The

speed is determined by the number of BPDU sent in each hello time.

Configure it in interface configuration mode:

 Configure the maximum number of configuration BPDUs sent by interface in each Hello

time to be 2

spanning-tree transit-limit 2

For example:

!Configure the maximum number of configuration BPDUs that can be

transmitted by the Ethernet 0/1 in each Hello time to 2

QTECH(config-if-ethernet-0/1)#spanning-tree transit-limit 2

8.2.15 STP monitor and maintainenance

The displaying information is as following:

 STP status

 BridgeID

 Root BridgeID

 All kinds of configuration parameter of STP

show spanning-tree interface

Use following command in any configuration mode to display STP status globally or on a port:

show spanning-tree interface

For example:

!Display STP configuration of e0/0/1

QTECH(config)#show spanning-tree interface ethernet 0/0/1

8.2.16 Enable/disable STP remote-loop-detect

When multi-layer cascading, if switch in media layer shut down STP, the BPDU packet sent by

upper switch will be cut by switch in media layer. When there is loop in the network below the

media layer, upper switch cannot detect the loop. Remote loop detect is the complementary for

this situation.

Enable STP remote-loop-detect

 In interface configuration mode

spanning-tree remote-loop-detect