H3C S3600 Series User Manual

Operation Manual – MSTP
H3C S3600 Series Ethernet Switches-Release 1510 Chapter 1
MSTP Configuration
1-31
Operation Command Description
Configure port priority for
the port
stp [ instance
instance-id ] port priority
priority
Required.
The default port priority is
128.
Changing port priority of a port may change the role of the port and put the port into
state transition.
A smaller port priority value indicates a higher possibility for the port to become the root
port. If all the ports of a switch have the same port priority value, the port priorities are
determined by the port indexes. Changing the priority of a port will cause spanning tree
recalculation.
You can configure port priorities according to actual networking requirements.
III. Configuration example
# Configure the port priority of Ethernet1/0/1 in spanning tree instance 1 to be 16.
1) Perform this configuration in system view.
<H3C> system-view
[H3C] stp interface Ethernet1/0/1 instance 1 port priority 16
2) Perform this configuration in Ethernet port view.
<H3C> system-view
[H3C] interface Ethernet1/0/1
[H3C-Ethernet1/0/1] stp instance 1 port priority 16
1.3.9 Specifying Whether the Link Connected to a Port Is a Point-to-point
Link
Refer to section 1.2.13 “Specifying Whether the Link Connected to a Port Is
Point-to-point Link
”.
1.3.10 Enabling the MSTP Feature
Refer to section 1.2.14 “Enabling the MSTP Feature”.
1.4 Performing mCheck
Ports on an MSTP-enabled switch can operate in three modes: STP-compatible,
RSTP-compatible, and MSTP.
A port on an MSTP-enabled switch operating as an upstream switch transits to the
STP-compatible mode when it has an STP-enabled switch connected to it. When the
STP-enabled downstream switch is then replaced by an MSTP-enabled switch, the
port cannot automatically transit to the MSTP mode. It remains in the STP-compatible

H3C S3600 Series Specifications

General

Brand	H3C
Model	S3600 Series
Category	Switch
Language	English