About Domain Restart - Cisco AP776A - Nexus Converged Network Switch 5020 Configuration Manual

Chapter 18 Configuring Domain Parameters
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
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About Domain Restart

Fibre Channel domains can be started disruptively or nondisruptively. If you perform a disruptive restart,
reconfigure fabric (RCF) frames are sent to other switches in the fabric and data traffic is disrupted on
all the switches in the VSAN (including remotely segmented ISLs). If you perform a nondisruptive
restart, build fabric (BF) frames are sent to other switches in the fabric and data traffic is disrupted only
on the switch.
If you are attempting to resolve a domain ID conflict, you must manually assign domain IDs. A
disruptive restart is required to apply most configuration changes–including manually assigned domain
IDs. Nondisruptive domain restarts are acceptable only when changing a preferred domain ID into a
static one (and the actual domain ID remains the same).
Note A static domain is specifically configured by the user and may be different from the runtime domain. If
the domain IDs are different, the runtime domain ID changes to take on the static domain ID after the
next restart, either disruptive or nondisruptive.
If a VSAN is in interop mode, you cannot restart the fcdomain for that VSAN disruptively.
Tip
You can apply most of the configurations to their corresponding runtime values. Each of the following
sections provide further details on how the fcdomain parameters are applied to the runtime values.
The fcdomain restart command applies your changes to the runtime settings. Use the disruptive option
to apply most of the configurations to their corresponding runtime values, including preferred domain
IDs (see the
OL-18084-01, Cisco MDS NX-OS Release 4.x
Restarting a Domain, page 18-4
About Domain Manager Fast Restart, page 18-4
Enabling Domain Manager Fast Restart, page 18-4
About Switch Priority, page 18-5
Configuring Switch Priority, page 18-5
About fcdomain Initiation, page 18-5
Disabling or Reenabling fcdomains, page 18-5
Configuring Fabric Names, page 18-6
About Incoming RCFs, page 18-6
Rejecting Incoming RCFs, page 18-6
About Autoreconfiguring Merged Fabrics, page 18-6
Enabling Autoreconfiguration, page 18-7
"About Domain IDs" section on page 18-7).
Cisco MDS 9000 Family CLI Configuration Guide
Fibre Channel Domains
18-3