From: Brian Dennis (bdennis@internetworkexpert.com)
Date: Tue Feb 06 2007 - 01:18:16 ART
Rack1R3#debug ip ospf adj
OSPF adjacency events debugging is on
*** Standard Ethernet ***
Rack1R3(config)#int Ethernet0/0
Rack1R3(config-if)#mtu 1504
% Interface Ethernet0/0 does not support user settable mtu.
Rack1R3(config-if)#ip mtu 1504
^
% Invalid input detected at '^' marker.
Rack1R3(config-if)#ip mtu 150?
<68-1500>
*** FastEthernet ***
Rack1R1(config)#int FastEthernet0/0
Rack1R1(config-if)#mtu 1504
% Interface FastEthernet0/0 does not support user settable mtu.
Rack1R1(config-if)#ip mtu 1504
^
% Invalid input detected at '^' marker.
Rack1R1(config-if)#ip mtu 150?
<68-1500>
*** GigabitEthernet ***
Rack1R6(config)#int GigabitEthernet0/0
Rack1R6(config-if)#mtu 1504
Rack1R6(config-if)#ip mtu
Rack1R6(config-if)#ip mtu 1504
Rack1R6(config-if)#
--Brian Dennis, CCIE4 #2210 (R&S/ISP-Dial/Security/SP) bdennis@internetworkexpert.com Internetwork Expert, Inc. http://www.InternetworkExpert.com Toll Free: 877-224-8987 Direct: 775-745-6404 (Outside the US and Canada)
On 2/5/07 8:03 PM, "Mohammad Saeed" <mzsaeed@gmail.com> wrote:
> Hi Every body, > > I am just wondering, how to verify the ospf adjacensy is not coming up > and reason is MTU mismatch? Like if you have set > > system mtu 1504 on the switch and there are routers using that switch > to establish adjacency, they will be stuck in INIT/EXSTRAT State, what > type of debug can show that the adjacency is stuck because of MTU > mismatch? > > How can you change MTU to 1504 on the router interface to match if you > don't want to use ip ospf mtu-ignore command under interfaces? > > > Regards, > > Mohammad Zahed Saeed > > _______________________________________________________________________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Thu Mar 01 2007 - 07:38:46 ART