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Cisco 7200VXR, MTU change problem

cisco(config-if)#mtu 1600

% Interface FastEthernet3/0 does not support user settable mtu.

my show version looks below

Cisco Internetwork Operating System Software

IOS (tm) 7200 Software (C7200-DS-M), Version 12.2(17a), RELEASE SOFTWARE (fc1)

Copyright (c) 1986-2003 by cisco Systems, Inc.

Compiled Thu 19-Jun-03 12:41 by pwade

Image text-base: 0x60008940, data-base: 0x6142A000

ROM: System Bootstrap, Version 12.0(19990210:195103) [12.0XE 105], DEVELOPMENT SOFTWARE

BOOTLDR: 7200 Software (C7200-BOOT-M), Version 12.0(2)XE2, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)

gateway2005 uptime is 3 weeks, 6 days, 19 hours, 17 minutes

System returned to ROM by power-on

System image file is "slot0:c7200-ds-mz.122-17a.bin"

cisco 7206VXR (NPE300) processor (revision B) with 229376K/65536K bytes of memory.

Processor board ID 15378981

R7000 CPU at 262Mhz, Implementation 39, Rev 1.0, 256KB L2, 2048KB L3 Cache

6 slot VXR midplane, Version 2.0

Last reset from power-on

Bridging software.

X.25 software, Version 3.0.0.

4 FastEthernet/IEEE 802.3 interface(s)

125K bytes of non-volatile configuration memory.

20480K bytes of Flash PCMCIA card at slot 0 (Sector size 128K).

4096K bytes of Flash internal SIMM (Sector size 256K).

Configuration register is 0x2102

any help

hari

2 REPLIES
Purple

Re: Cisco 7200VXR, MTU change problem

Hi Hari,

Unfortunately, you cannot change the physical MTU on these LAN interfaces. The MTU stays at the default of 1500 bytes.

If you had an NPE-G1, then you could modify the MTU on the GigE interfaces.

Hope that helps - pls rate the post if it does.

Paresh

New Member

Re: Cisco 7200VXR, MTU change problem

Hari,

Why do you want to change it ? MPLS ? or some other reason ?

Regards,

Luis

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