Enabling Autoreconfiguration; Domain Ids - Cisco Nexus 5000 Series Configuration Manual

Domain IDs

• If the autoreconfigure option is enabled on both switches, a disruptive reconfiguration phase is started.
• If the autoreconfigure option is disabled on either or both switches, the links between the two switches
The autoreconfigure option takes immediate effect at runtime. You do not need to restart the fcdomain. If a
domain is currently isolated due to domain overlap, and you later enable the autoreconfigure option on both
switches, the fabric continues to be isolated. If you enabled the autoreconfigure option on both switches before
connecting the fabric, a disruptive reconfiguration (RCF) will occur. A disruptive reconfiguration can affect
data traffic. You can nondisruptively reconfigure the fcdomain by changing the configured domains on the
overlapping links and eliminating the domain overlap.

Enabling Autoreconfiguration

You can enable automatic reconfiguration in a specific VSAN (or range of VSANs).
SUMMARY STEPS
1. configure terminal
2. fcdomain auto-reconfigure vsan vsan-id
3. no fcdomain auto-reconfigure vsan vsan-id
DETAILED STEPS
Command or Action
Step 1 configure terminal
Example:
switch# configure terminal
switch(config)#
Step 2 fcdomain auto-reconfigure vsan vsan-id
Example:
switch(config)# fcdomain auto-reconfigure vsan
1
Step 3
no fcdomain auto-reconfigure vsan vsan-id
Example:
switch(config)# no fcdomain auto-reconfigure
vsan 1
Domain IDs
Domain IDs uniquely identify a switch in a VSAN. A switch may have different domain IDs in different
VSANs. The domain ID is part of the overall FC ID.
Cisco Nexus 5000 Series NX-OS SAN Switching Configuration Guide, Release 5.2(1)N1(1)
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become isolated.
Configuring Fibre Channel Domain Parameters
Purpose
Enters global configuration mode.
Enables the automatic reconfiguration option in the specified
VSAN. The VSAN ID ranges from 1 to 4093.
Disables the automatic reconfiguration option and reverts
it to the factory default in the specified VSAN. The VSAN
ID ranges from 1 to 4093.
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