Cisco AP776A - Nexus Converged Network Switch 5020 Configuration Manual page 213

Chapter 7 Using the CFS Infrastructure
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
CFS uses the list of configured IP addresses to communicate with each peer and learn the peer switch
WWN. After learning the peer switch WWN, CFS marks the switch as CFS-capable and triggers
application-level merging and database distribution.
The following MDS 9000 features require static IP peer configuration for CFS over IP distribution:
•
•
To configure a static IP peer address for CFS over IP, follow these steps:
Command
Step 1
switch# config t
switch(config)#
Step 2
switch(config)# cfs static-peers
WARNING: This mode will stop dynamic
discovery and rely only on these peers.
Do you want to continue? (y/n)
switch(config-cfs-static)#
switch(config)# no cfs static-peers
WARNING: This mode will disable static
IP peer configuration and start dynamic
discovery of the peers.
Do you want to continue? (y/n)
switch(config)#
Step 3
switch(config-cfs-static)# ip address
1.2.3.4
switch(config-cfs-static)# ip address
1.2.3.5
switch(config-cfs-static)# end
switch#
switch(config-cfs-static)# no ip address
1.2.3.3
switch(config-cfs-static)# end
switch#
Step 4
switch# show cfs static peers
Note IP address and WWN must be configured on the local switch. If CFS does not receive the local switch
information, then CFS cannot start any discovery for peer switches.
OL-18084-01, Cisco MDS NX-OS Release 4.x
N port virtualization devices have IP as the communication channel because NPV switches do not
have FC domain. NPV devices use CFS over IP as the transport medium. For more information, see
the "NPV CFS Distribution over IP" section on page
FlexAttach virtual pWWN distribution on CFS region 201 that links only the NPV-enabled switches.
For more information, see the
14-6.
"FlexAttach Virtual pWWN CFS Distribution" section on page
Purpose
Enters configuration mode.
Enters CFS static peers configuration mode and
disables dynamic discovery of peers using multicast
forwarding.
[n] y
Disables CFS static peer discovery and enables
dynamic peer discovery using multicast forwarding
on all switches.
[n] y
Adds the IP address to the static peers list and marks
the switch as CFS-capable. To display the static IP
peers list, use the show cfs static peers command.
Removes the IP address from the static peers list and
moves the switch to dynamic peer discovery using
multicast forwarding.
Displays the IP address, WWN, and the status of CFS
static peer request:
Discovery Inprogress
•
Local
•
• Reachable
Unreachable
•
Local IP not present
•
Rediscovery and distribution disabled
•
Cisco MDS 9000 Family CLI Configuration Guide
CFS Distribution over IP
6-6.
7-15