Cisco Systems N3KC3064TFAL3 Manual De Usuario
Configuring the Rapid PVST+ Forward Delay Time for a VLAN
You can configure the forward delay time per VLAN when using Rapid PVST+.
Procedure
Purpose
Command or Action
Enters configuration mode.
switch# configure terminal
Step 1
Configures the forward delay time of a VLAN. The
forward delay time value can be from 4 to 30
seconds, and the default is 15 seconds.
forward delay time value can be from 4 to 30
seconds, and the default is 15 seconds.
switch(config)# spanning-tree vlan
vlan-range forward-time forward-time
vlan-range forward-time forward-time
Step 2
This example shows how to configure the forward delay time for a VLAN:
switch#
configure terminal
switch(config)#
spanning-tree vlan 5 forward-time 21
Configuring the Rapid PVST+ Maximum Age Time for a VLAN
You can configure the maximum age time per VLAN when using Rapid PVST+.
Procedure
Purpose
Command or Action
Enters configuration mode.
switch# configure terminal
Step 1
Configures the maximum aging time of a VLAN.
The maximum aging time value can be from 6 to 40
seconds, and the default is 20 seconds.
The maximum aging time value can be from 6 to 40
seconds, and the default is 20 seconds.
switch(config)# spanning-tree vlan
vlan-range max-age max-age
vlan-range max-age max-age
Step 2
This example shows how to configure the maximum aging time for a VLAN:
switch#
configure terminal
switch(config)#
spanning-tree vlan 5 max-age 36
Specifying the Link Type
Rapid connectivity (802.1w standard) is established only on point-to-point links. By default, the link type is
controlled from the duplex mode of the interface. A full-duplex port is considered to have a point-to-point
connection; a half-duplex port is considered to have a shared connection.
controlled from the duplex mode of the interface. A full-duplex port is considered to have a point-to-point
connection; a half-duplex port is considered to have a shared connection.
If you have a half-duplex link physically connected point-to-point to a single port on a remote switch, you
can override the default setting on the link type and enable rapid transitions.
can override the default setting on the link type and enable rapid transitions.
Cisco Nexus 3000 NX-OS Layer 2 Switching Configuration Guide, Release 5.0(3)U3(1)
OL-26590-01
85
Configuring Rapid PVST+
Configuring the Rapid PVST+ Forward Delay Time for a VLAN