Table 107
Common Internal Spanning Tree Configuration Menu options
Command
add <1-4095>
default
cur
CIST bridge configuration
Command: /cfg/l2/mrst/cist/brg
[CIST Bridge Menu]
CIST bridge parameters are used only when the switch is in MSTP mode. CIST parameters do not affect
operation of STP/PVST.
The following table describes the commands used to configure CIST Bridge Configuration Menu options
parameters.
Table 108
CIST Bridge Configuration Menu options
Command
prior <0-
65535>
mxage <6-40>
fwd <4-30>
cur
Description
Adds VLANs to the CIST. Enter one VLAN per line, and press Enter to add the VLANs.
Resets all CIST parameters to their default values.
Displays the current CIST configuration.
prior
- Set CIST bridge Priority (0-65535)
mxage
- Set CIST bridge Max Age (6-40 secs)
fwd
- Set CIST bridge Forward Delay (4-30 secs)
cur
- Display current CIST bridge parameters
Description
Configures the CIST bridge priority. The bridge priority parameter controls which bridge on
the network is the MSTP root bridge.
To make this switch the root bridge, configure the bridge priority lower than all other switches
and bridges on your network. The lower the value, the higher the bridge priority. The range is
0 to 65535, and the default is 32768.
This command does not apply to RSTP. See the "Bridge Spanning Tree configuration" section
for more information.
Configures the CIST bridge maximum age. The maximum age parameter specifies the
maximum time the bridge waits without receiving a configuration bridge protocol data unit
before it reconfigures the MSTP network. The range is 6 to 40 seconds, and the default is 20
seconds.
This command does not apply to RSTP. See the "Bridge Spanning Tree configuration" section
for more information.
Configures the CIST bridge forward delay parameter. The forward delay parameter specifies
the amount of time that a bridge port has to wait before it changes from the listening state to
the learning state and from the learning state to the forwarding state. The range is 4 to 30
seconds, and the default is 15 seconds.
This command does not apply to RSTP. See the "Bridge Spanning Tree configuration" section
for more information.
Displays the current CIST bridge configuration.
Configuration Menu
135