From: Peter (peter@cyscoexpert.com)
Date: Thu Oct 16 2003 - 00:01:04 GMT-3
Ken,
You are correct about your first 2 thoughts. Split horizon is disabled on
the main F/R interface for RIP and IGRP but enabled for EIGRP. And the 2
commands you mentioned have nothing to do with each other, you can use both
at the same time if needed.
As far as a "show" command to see the defaults, you can type "show ip int
serial ..." to see the default setting for RIP and IGRP. See here:
Rack2R6# show ip int s0/0
Serial0/0 is up, line protocol is up
Internet address is 1.1.1.1/24
Broadcast address is 255.255.255.255
Address determined by setup command
MTU is 1500 bytes
Helper address is not set
Directed broadcast forwarding is disabled
Multicast reserved groups joined: 224.0.0.10
Outgoing access list is not set
Inbound access list is not set
Proxy ARP is enabled
Security level is default
Split horizon is disabled <--------------------------
ICMP redirects are always sent
ICMP unreachables are always sent
ICMP mask replies are never sent
IP fast switching is enabled
IP fast switching on the same interface is enabled
IP Flow switching is disabled
IP CEF switching is disabled
IP Feature Fast switching turbo vector
IP multicast fast switching is enabled
IP multicast distributed fast switching is disabled
IP route-cache flags are Fast
Router Discovery is disabled
IP output packet accounting is disabled
IP access violation accounting is disabled
TCP/IP header compression is disabled
RTP/IP header compression is disabled
Probe proxy name replies are disabled
Policy routing is disabled
Network address translation is disabled
WCCP Redirect outbound is disabled
WCCP Redirect inbound is disabled
WCCP Redirect exclude is disabled
BGP Policy Mapping is disabled
IP multicast multilayer switching is disabled
Rack2R6#
I am not aware of any EIGRP specific "show" command to see what the setting
is. There might be none.
GO CUBS! (although it doesn't look good in the 8th)
_____________________________
Peter
#7247 (R&S, Security, SP)
CyscoExpert Corp.
4433 W. Touhy Ave. Suite 410
Lincolnwood, IL 60712
Phone (847) 674-3392
Toll Free (866) CyscoXP (297-2697)
Fax (847) 674-2625
----- Original Message -----
From: "Kenneth Wygand" <KWygand@customonline.com>
To: <ccielab@groupstudy.com>
Sent: Wednesday, October 15, 2003 9:28 PM
Subject: 3 Questions on Split Horizon
> Hello everyone,
>
> I have three questions on split horizon as it relates to EIGRP over Frame
Relay:
>
> 1) Is it true that on a physical Frame Relay interface (not
sub-interface), the split horizon is DISABLED for RIP but ENABLED for EIGRP?
I thought it was disabled for both, yet according to the doc CD, the default
for EIGRP is enabled.
>
> 2) Is it true that the command "ip split-horizon [enable | disable]"
applies to RIP and "ip split-horizon eigrp xx [enable | disable] applies to
EIGRP and they are mutually exclusive (meaning that configuring one has
absolutely no effect on the other)?
>
> 3) How can one check whether or not split horizon is enabled or disabled
on a particular interface for a particular distance-vector routing protocol
through a "show" command?
>
> Thanks in advance!
> Ken
>
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This archive was generated by hypermail 2.1.4 : Mon Nov 24 2003 - 07:53:03 GMT-3