cisco fabric services (CFS) is used to synchronize the features between devices under a common region. These features or services can be NTP , RADIUS , STP , Syslogd , Session mgr and fwna.
By default, All devices begins in the same region and this region is called default region. But we can also create create the different regions using the numbers between 1 and 200.
A device in a common region will synchronize with same configuration. It uses multicast IP address 188.8.131.52 for synchronize the configuration between devices.
We can configure CFS over ethernet , IPv4 and IPv6.
It should be configure on all the devices in a region.
Command to configure region:
cfs region 100
Cisco fabric Services Configuration Example:
conf t cfs ipv4 distribute ntp distribute ntp commit
Once configure the above commands, If we are adding or changing anything in NTP configuration NEXUS-A then it will be sync with all the devices in region.
For example, IF we are changing the NTP server IP from 10.10.10.10 to 184.108.40.206 then it will also reflect on NEXUS-B and NEXUS-C.
show cfs peer show cfs applications show cfs status
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