Configuring Fabric Names; About Incoming Rcfs; Rejecting Incoming Rcfs; About Autoreconfiguring Merged Fabrics - Cisco AP776A - Nexus Converged Network Switch 5020 Configuration Manual

Fibre Channel Domains
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

Configuring Fabric Names

To set the fabric name value for a disabled fcdomain, follow these steps:
Command
Step 1
switch# config t
switch(config)#
Step 2
switch(config)# fcdomain fabric-name
20:1:ac:16:5e:0:21:01 vsan 3
switch(config)# no fcdomain fabric-name
20:1:ac:16:5e:0:21:01 vsan 3010

About Incoming RCFs

You can configure the rcf-reject option on a per-interface, per-VSAN basis. By default, the rcf-reject
option is disabled (that is, RCF request frames are not automatically rejected).
The rcf-reject option takes immediate effect takes effect immediately. No fcdomain restart is required.

Rejecting Incoming RCFs

To reject incoming RCF request frames, 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)# fcdomain rcf-reject vsan 1
switch(config-if)# no fcdomain rcf-reject vsan 1

About Autoreconfiguring Merged Fabrics

By default, the autoreconfigure option is disabled. When you join two switches belonging to two
different stable fabrics that have overlapping domains, the following cases apply:
•
•
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 may affect data traffic. You can nondisruptively reconfigure the fcdomain by changing
the configured domains on the overlapping links and getting rid of the domain overlap.
Cisco MDS 9000 Family CLI Configuration Guide
18-6
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 become isolated.
Chapter 18
Purpose
Enters configuration mode.
Assigns the configured fabric name value in VSAN 3.
Changes the fabric name value to the factory default
(20:01:00:05:30:00:28:df) in VSAN 3010.
Purpose
Enters configuration mode.
Configures the specified interface.
Enables the RCF filter on the specified
interface in VSAN 1.
Disables (default) the RCF filter on the
specified interface in VSAN 1.
OL-18084-01, Cisco MDS NX-OS Release 4.x
Configuring Domain Parameters