Stp Port Priority - H3C S7500E Series Command Manual

Hide thumbs Also See for S7500E Series:

Table of Contents

Command Manual – MSTP

H3C S7500E Series Ethernet Switches

[Sysname] stp port-log instance 2

GigabitEthernet2/0/1 has been set to discarding state!

GigabitEthernet2/0/2 has been set to forwarding state!

// The information above shows that in instance 2, the state of GigabitEthernet 2/0/1

has changed to discarding and that of GigabitEthernet 2/0/2 has changed to

1.1.29 stp port priority

stp [ instance instance-id ] port priority priority

undo stp [ instance instance-id ] port priority

Ethernet interface view, port group view

instance instance-id: Sets the priority of the current port(s) in a particular spanning tree

instance. The effective range of instance-id is 0 to 31, with 0 representing the CIST.

priority: Port priority, in the range of 0 to 240 at the step of 16 (0, 16, 32..., for example).

Use the stp port priority command to set the priority of the port(s).

Use the undo stp port priority command to restore the system default.

By default, the port priority is 128.

Configured in Ethernet interface view, the setting is effective on the current port only;

configured in port group view, the setting is effective on all ports in the port group.

If you set instance-id to 0, you are setting the priority of the port in the CIST. The priority

of a port can affect the role selection of the port in the specified spanning tree instance.

Setting different priorities for the same port in different spanning tree instances allows

different VLAN traffic flows to be forwarded along different physical links, thus to enable

per-VLAN load balancing.

When the priority of a port is changed, MSTP will re-compute the role of the port and

initiate a state transition.

If you do not provide instance instance-id, your configuration will take effect in the CIST

instance only.

00:49:41:856

00:49:41:856

Chapter 1 MSTP Configuration Commands

MSTP/3/PDISC:

MSTP/3/PFWD:

Table of Contents