iES6 Series User’s Manual
iS5 Communications Inc.
54
iES6 series Commands
Level Description
Example
switch within this interval,
the RSTP topology is
recomputed.
RSTP hello-time
[seconds]
G
Use the RSTP hello-time
global configuration
command to specify the
interval (1-10) between
hello bridge protocol data
units (BPDUs).
switch(config)#
RSTP hello-time 3
RSTP forward-time
[seconds]
G
Use the RSTP forward-time
global configuration
command to set the
forwarding-time for the
specified RSTP instances.
The forwarding time (4-30)
determines how long each
of the listening and
learning states last before
the port begins
forwarding.
switch(config)# RSTP forward-time 20
RSTP max-age
[seconds]
G
Configure RSTP max age
parameter
switch(config)# RSTP max-age 25
RSTP path-cost
[1to200000000]
I
Use the RSTP cost
interface configuration
command to set the path
cost for RSTP calculations.
In the event of a loop,
RSTP considers the path
cost when selecting
an interface to place into
the forwarding state.
switch(config)#interface fastEthernet 2
switch(config-if)#
rstp path-cost 2
RSTP port-priority
[Port Priority]
I
Use the RSTP 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)# rstp port-priority 128
