ACE 4710 MTU Size on Interface

[rgkeg]

Hello

I have a Problem with an an ACE4710 Setup. Between my 2 Ace's there are Switches which don't Support Jumbo Frames -

Is there a way to configure the Interface on the ACE to an Standard MTU Sive (15xx)

I'm using SW-Version A3(2.7). 

[litrenta]

default MTU is 1500 bytes on an interface. i.e.

interface vlan 178

  ip address 10.x.x.x 255.255.255.0

  access-group input ALL

  service-policy input MGMNT

  service-policy input jim1

  no shutdown

MR23100315-ACE01/Admin# show int vlan 178

vlan178 is up, VLAN up on the physical port

  Hardware type is VLAN

  MAC address is 00:23:8b:03:74:61

  Mode : routed

  IP address is 10.x.x.x netmask is 255.255.255.0

  FT status is non-redundant

  Description:not set

  MTU: 1500 bytes

  Last cleared: never

  Last Changed: Sun May 22 13:37:09 2011

  No of transitions: 3

  Alias IP address not set

  Peer IP address not set

  Assigned on the physical port, up on the physical port

  Previous State: Sun May 22 13:36:03 2011, VLAN not up on the physical port

  Previous State: Thu May 19 15:10:11 2011, VLAN up on the physical port

     8654836 unicast packets input, 2693257658 bytes

     1 multicast, 0 broadcast

     0 input errors, 0 unknown, 0 ignored, 0 unicast RPF drops

     9672812 unicast packets output, 2671360745 bytes

     0 multicast, 8914 broadcast

     0 output errors, 0 ignored

you can change it with mtu command

MR23100315-ACE01/Admin(config)# int vlan 178

MR23100315-ACE01/Admin(config-if)# m?

mac-address  mac-sticky   mtu

MR23100315-ACE01/Admin(config-if)# mtu ?

  <68-9216>  MTU size in bytes

This is configured on the logical interfaces of the ace (vlan interfaces) not the physical gig ports.

Regards

[rgkeg]

Thanks, but this is not what I'm looking for. I want to change the MTU-Size on the Interface from 9216 to 1536. 

GigabitEthernet Port 1/4 is UP, line protocol is UP

Hardware is ACE Appliance 1000Mb 802.3, address is 00:1b:24:5e:89:6c

MTU 9216 bytes

Full-duplex, 100Mb/s

COS bits based QoS is disabled

input flow-control is off, output flow-control is off

....

The added FT Vlan has also an MTU-Size from 1500.

Thanks