User's Manual

Table Of Contents
217
Users Manual of CS-6306R
19.1.3.10 Monitoring STP State
To monitor the STP configuration and state, use the following command in management mode:
Command Purpose
show spanning-tree Displays spanning-tree information on
active interfaces only.
show spanning-tree detail Displays a detailed summary of
interface information.
show spanning-tree interface Displays spanning-tree information for
the specified interface.
19.1.4 Configuring VLAN STP
19.1.4.1 Overview
In SSTP mode, the whole network has only one STP entity. The state of the switch port in the STP decides its
state in all VLANs. In the case that multiple VLANs exist in the network, the separation of the single STP and
the network topology may cause communication congestion in some parts of network.
Our switches run independent SSTP on a certain number of PurposeVLANs, ensuring that the port has
different state in different VLANs and that the load balance is realized between VLANs.
Note that the switch can run the independent STP in up to 30 VLANs. Other VLAN topologies are not
controlled by the STP.
19.1.4.2 VLAN STP Configuration Task
In global configuration mode, run the following commands to configure SSTP attributes in VLAN:
Command Purpose
spanning-tree mode pvst Starts the VLAN-based STP distribution
mode.
spanning-tree vlan vlan-list
Distributes the STP case for the
designated VLAN.
vlan-list: the list of VLAN
The switch distributes STP case for up
to 30 VLANs.
no spanning-tree vlan vlan-list
Deletes the STP case in the designated
VLA.
spanning-tree vlan vlan-list priority
value
Configures the priority for the STP in
the designated VLAN.
no spanning-tree vlan-list priority
Resumes the STP priority in the VLAN
to the default configuration.
spanning-tree vlan vlan-list
forward-time value
Configures Forward Delay for the
designated VLAN.
no spanning-tree vlan vlan-list
forward-time
Resumes Forward Delay of the
designated VLAN to the default