Split horizon

Alceo

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?

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).