From: Kasu Venkat Reddy \(kvreddy\) (kvreddy@cisco.com)
Date: Fri Sep 26 2003 - 01:00:07 GMT-3
Hi,
We have 3 provisions to set mtu-1)mtu -this implies to interface mtu.
2)ip mtu -this implies to IP mtu(by
default it will be same as interface mtu)-especially this is used in the
context of ethernet where we can't change the mtu of an interface.
3)mpls mtu -tthis comes in the context
of mpls (by default it will be same as interface mtu).
NOTE: MTU & IP MTU gets the same result-since for ethernet we can't
change mtu-we can use ip mtu to achieve the same.
Thanks & Regards,
Venkat
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
seonghui
Sent: Thursday, September 25, 2003 10:39 PM
To: ccielab@groupstudy.com
Subject: setting mtu on ethernet interface
Hi group,
I am trying to set the mtu size for an ethernet interface as requested
by one of the scenarios in ipexpert. However, I got the below error:
r4(config)#int e1/0
r4(config-if)#mtu 1000
% Interface Ethernet1/0 does not support user settable mtu. <-------
WHY? This is the solution given
And i also noticed that under ip command, I can set ip mtu 1000 without
getting any error:
r4(config-if)#ip mtu 1000
r4(config-if)#
I guess MTU 1000 will set any traffic on the interface to 1000 bytes and
IP MTU 1000 will set any IP traffic to 1000 bytes for fragmentation, the
former will cover the later configuration. If I get such question in the
exam, do I have to be as specific as possible and find out if the
interface only has IP or other traffic before deciding which command to
use?
regards - SH
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This archive was generated by hypermail 2.1.4 : Wed Oct 01 2003 - 07:24:37 GMT-3