iES26G Series User’s Manual
iS5 Communications Inc.
70
5.6
Commands Set List—Spanning Tree command set
Commands
Level
Description
Exam
ple
spanning-tree enable
G
Enable spanning tree
switch(config)#spanning-tree
enable
spanning-tree priority
[0to61440]
G
Configure spanning tree priority
parameter
switch(config)#spanning-tree
priority 32767
spanning-tree max-age
[seconds]
G
Use the spanning-tree max-age
global configuration command to
change the interval between
messages the spanning tree
receives from the root switch. If
a switch does not receive a bridge
protocol data unit (BPDU)
message from the root switch
within this interval, it recomputed
the Spanning Tree Protocol (STP)
topology.
switch(config)# spanning-tree max-
age 15
spanning-tree
hello-time
[seconds]
G
Use the spanning-tree hello-time
global configuration command to
specify the interval between hello
bridge protocol data units
(BPDUs).
switch(config)#spanning-
tree hello-time 3
spanning-tree
forward-time
[seconds]
G
Use the spanning-tree forward-
time global configuration
command to set the forwarding-
time for the specified spanning-
tree instances. The forwarding
time determines how long each of
the listening and learning states
last before the port begins
forwarding.
switch(config)# spanning-tree
forward-time 20
stp-path-cost
[1to200000000]
I
Use the spanning-tree cost
interface configuration command
to set the path cost for Spanning
Tree Protocol (STP) calculations. In
the event of a loop, spanning tree
considers the path cost when
selecting an interface to place into
the forwarding state.
switch(config)#interface
fastEthernet 2
switch(config-if)#stp-path-cost 20
stp-path-priority
[Port Priority]
I
Use the spanning-tree port-
priority interface configuration
command to configure a port
priority that is used when two
switches tie for position as the
root switch.
switch(config)#interface
fastEthernet
2
switch(config-if)# stp-path-priority
127
stp-admin-p2p
[Auto|True|False]
I
Admin P2P of STP priority on this
interface.
switch(config)#interface
fastEthernet 2
switch(config-if)# stp-admin-p2p
Auto