Command Manual (For Soliton) – MSTP
H3C S3100 Series Ethernet Switches
Chapter 1 MSTP Configuration Commands
1-42
[Sysname] stp mode stp
1.1.37 stp no-agreement-check
Syntax
stp
no-agreement-check
undo stp no-agreement-check
View
Ethernet port view
Parameters
None
Description
Use the
stp
no-agreement-check
command to enable the rapid transition feature on a
port.
Use the
stp
no-agreement-check
command to disable the rapid transition feature.
By default, the rapid transition feature is disabled on a port.
Some manufactures' switches adopt proprietary spanning tree protocols that are
similar to RSTP in the way to implement rapid transition on designated ports. When a
switch of this kind operates as the upstream switch of an H3C series switch running
MSTP, the upstream designated port fails to change their states rapidly.
The rapid transition feature aims to resolve this problem. When an H3C series switch
running MSTP is connected in the upstream direction to another manufacture's switch
adopting proprietary spanning tree protocols, you can enable the rapid transition
feature on the ports of the H3C series switch operating as the downstream switch.
Among these ports, those operating as the root ports will then actively send agreement
packets to their upstream ports after they receive proposal packets from the upstream
designated ports, instead of waiting for agreement packets from the upstream switch.
This enables designated ports of the upstream switch to change their states rapidly.
Related commands:
stp interface no-agreement-check
.
Note:
z
The rapid transition feature can be enabled on only root ports or alternate ports.
z
You can enable the rapid transition feature on the designated port. However, the
feature does not take effect on the port.
