About Interface Deletion From A San Port Channel; Deleting An Interface From A San Port Channel; San Port Channel Protocol - Cisco Nexus 5000 Series Configuration Manual
Nx-os san switching configuration guide
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Also See for Nexus 5000 Series:
- Cli configuration manual (660 pages) ,
- Configuration manual (334 pages) ,
- Command reference manual (196 pages)
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SAN Port Channel Protocol
About Interface Deletion from a SAN Port Channel
When a physical interface is deleted from the SAN port channel, the channel membership is automatically
updated. If the deleted interface is the last operational interface, then the port channel status is changed to a
down state. Deleting an interface from a SAN port channel decreases the channel size and bandwidth of the
SAN port channel.
• If you use the default On mode to avoid inconsistent states across switches and to maintain consistency
• If you use the Active mode, then the port channel ports automatically recover from the deletion.
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.
Deleting an Interface from a SAN Port Channel
To delete a physical interface (or a range of physical interfaces) from a SAN port channel, perform this task:
SUMMARY STEPS
1. switch(config)# interface type slot/port
2. switch(config-if)# no channel-group channel-number
DETAILED STEPS
Command or Action
Step 1
switch(config)# interface type slot/port
Step 2
switch(config-if)# no channel-group channel-number
SAN Port Channel Protocol
The switch 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 SAN
port channel interface is propagated to all members of the channel group.
Cisco SAN switches support a protocol to exchange SAN port channel configurations, which simplifies port
channel management with incompatible ISLs. An additional autocreation mode enables ISLs with compatible
parameters to automatically form channel groups without manual intervention.
The port channel protocol is enabled by default.
The port channel protocol expands the port channel functional model in Cisco SAN switches. It uses the
exchange peer parameters (EPP) services to communicate across peer ports in an ISL. Each switch uses the
Cisco Nexus 5000 Series NX-OS SAN Switching Configuration Guide
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across switches, then the ports shut down. You must explicitly enable those ports again.
Purpose
Enters configuration mode for the specified interface.
Deletes the physical Fibre Channel interface from the
specified channel group.
Configuring SAN Port Channel
OL-xxxxx-xx
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