Split horizon

We can disable it in EIGRP with the command:
no ip split-horizon eigrp <asn>

The command no ip split-horizon is for RIP? Or for all routing protocols?

The command show ip interface says that it is disabled only if we use no split-horizon, how can we tell if it is disabled only for eigrp without using show running?

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Comments

Nans

WHen you apply it on an interface it will be applied on it disregard of the protocol i guess...

rjon17469

Alceo wrote: »

The command no ip split-horizon is for RIP?

Yes. EIGRP has a separate command as you mentioned. Link-state routing protocols don't implement split horizon in the same manner as distance-vector protocols like RIP and EIGRP and hence this command doesn't apply to them, and path-vector protocols also have a unique method of implementing split horizon with unique configuration.

Mooseboost

show ip eigrp interface detail will show if split horizon is enabled or not.

EIGRP-IPv4 Interfaces for AS(1)

Xmit Queue Mean Pacing Time Multicast Pending

Interface Peers Un/Reliable SRTT Un/Reliable Flow Timer Routes

Et0/0 0 0/0 0 0/1 0 0

Hello-interval is 7, Hold-time is 21

Split-horizon is disabled

Next xmit serial <none>

Un/reliable mcasts: 0/0 Un/reliable ucasts: 0/0

Mcast exceptions: 0 CR packets: 0 ACKs suppressed: 0

Retransmissions sent: 0 Out-of-sequence rcvd: 0

Next-hop-self disabled, next-hop info forwarded

Topology-ids on interface - 0

Authentication mode is md5, key-chain is "TEST"

BFD is enabled

Et0/1 0 0/0 0 0/10 0 0

Hello-interval is 5, Hold-time is 15

Split-horizon is enabled

Alceo

Thanks Moose for you answer with the output, it let me found out that something strange was happening in my GNS3.
When I used that command i had a different output without the split-horizon info, the reason is that I used a 7200 in GNS3 but when I saved the topology and reopened it all the router changed to a 3745 that does not support EIGRP (but accept that command).