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 this command.

cfs ipv4 mcast-address ipv4-address

no cfs ipv4 mcast-address ipv4-address

Syntax Description

ipv4-address

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.


Command Default

Multicast address: 239.255.70.83.

Command Modes

Global configuration mode

Command History

Release
Modification

4.0(0)N1(1a)

This command was introduced.


Usage Guidelines

Before using this command, enable CFS distribution over IPv4 by 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

This 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 

This 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  

Related Commands

Command
Description

cfs ipv4 distribute

Enables or disables Cisco Fabric Services (CFS) distribution over IPv4.

show cfs status

Displays whether CFS distribution is enabled or disabled.