Cisco Nexus 5000 Series Command Reference Release 4.0(1a)N2(1) (OL-16599-01, March 2009)

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8-5
Cisco Nexus 5000 Series Command Reference
OL-16599-01
Chapter 8 Fibre Channel Commands
cfs ipv4 mcast-address
cfs ipv4 mcast-address
To configure an IPv4 multicast address for Cisco Fabric Services (CFS) distribution over IPv4, use the
cfs ipv4 mcast-address command. To disable this feature, use the no form of the command.
cfs ipv4 mcast-address ipv4-address
no cfs ipv4 mcast-address ipv4-address
Syntax Description
Command Default Multicast address: 239.255.70.83.
Command Modes Configuration mode
Command History
Usage Guidelines Before using this command, enable CFS distribution over IPv4 using the cfs ipv4 distribute command.
All CFS over IP enabled switches with similar multicast addresses form one CFS over IP fabric. CFS
protocol-specific distributions, such as the keepalive mechanism for detecting network topology
changes, use the IP multicast address to send and receive information.
CFS distributions for application data use directed unicast.
You can configure a value for a CFS over IP multicast address. The default IPv4 multicast address is
239.255.70.83.
Examples The following example shows how to configure an IP multicast address for CFS over IPv4:
switch(config)# cfs ipv4 mcast-address 239.255.1.1
Distribution over this IP type will be affected
Change multicast address for CFS-IP ?
Are you sure? (y/n) [n] y
The following example shows how to revert to the default IPv4 multicast address for CFS distribution
over IPv4:
switch(config)# no cfs ipv4 mcast-address 10.1.10.100
Distribution over this IP type will be affected
Change multicast address for CFS-IP ?
Are you sure? (y/n) [n] y
ipv4-address Specifies an IPv4 multicast address for CFS distribution over IPv4. The
range of valid IPv4 addresses is 239.255.0.0 through 239.255.255.255, and
239.192.0.0 through 239.251.251.251.
Release Modification
4.0(0)N1(1a) This command was introduced.