About Interface Deletion From A Portchannel; Deleting An Interface From A Portchannel; Portchannel Protocols - Cisco AP776A - Nexus Converged Network Switch 5020 Configuration Manual
Cisco mds 9000 family cli configuration guide - release 4.x (ol-18084-01, february 2009)
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Chapter 17
Configuring PortChannels
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
To force the addition of a port to a PortChannel, follow these steps:
Command
Step 1
switch# config t
switch(config)#
Step 2
switch(config)# interface fc1/1
switch(config-if)#
Step 3
switch(config-if)# channel-group 1 force
About Interface Deletion from a PortChannel
When a physical interface is deleted from the PortChannel, the channel membership is automatically
updated. If the deleted interface is the last operational interface, then the PortChannel status is changed
to a down state. Deleting an interface from a PortChannel decreases the channel size and bandwidth of
the PortChannel.
•
•
After the members are deleted, regardless of the mode (ACTIVE and ON) used, the ports at either end
are gracefully brought down, indicating that no frames are lost when the interface is going down (see the
"Generation 1 PortChannel Restrictions" section on page 17-7
page
Deleting an Interface from a PortChannel
To delete a physical interface (or a range of physical interfaces) from a PortChannel, follow these steps:
Command
Step 1
switch(config)# interface fc1/1
switch(config-if)#
switch(config)# interface fc1/1 - 5
switch(config-if)#
Step 2
switch(config-if)# no channel-group 2
switch(config-if)#
PortChannel Protocols
In earlier Cisco SAN-OS releases, PortChannels required additional administrative tasks to support
synchronization. The Cisco NX-OS software provides robust error detection and synchronization
capabilities. You can manually configure channel groups or they can be automatically created. In both
cases, the channel groups have the same capability and configurational parameters. Any change in
configuration applied to the associated PortChannel interface is propagated to all members of the
channel group.
OL-18084-01, Cisco MDS NX-OS Release 4.x
If you use the default ON mode to avoid inconsistent states across switches and to maintain
consistency across switches, then the ports shut down. You must explicitly enable those ports again.
If you use the ACTIVE mode, then the PortChannel ports automatically recover from the deletion.
13-12).
Purpose
Enters configuration mode.
Specifies the interface fc1/1.
Forces the addition of the physical port for
interface fc1/1 to channel group 1. The port is
shut down.
and
"Graceful Shutdown" section on
Purpose
Enters the selected physical interface level.
Enters the selected range of physical interfaces.
Deletes the physical Fibre Channel interfaces in
channel group 2.
Cisco MDS 9000 Family CLI Configuration Guide
PortChannel Protocols
17-15
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