[j-nsp] MPLS issue

Chuck Anderson cra at WPI.EDU
Tue Mar 4 08:36:37 EST 2008

On Tue, Mar 04, 2008 at 09:05:59AM -0400, Ying Zhang wrote:
> On the note of doing 9k frame on the core, for JUNOS, is it just to set 
> physical interface MTU to 9000?
> #set interface ge-0/0/0 mtu 9000

I generally set the physical interface MTU to 9192 or whatever the 
maximum supported value is for each interface.  Then you can set the 
IP family MTU to 9000 which is a "de facto" standard for jumbo frames.  
This leaves 192 bytes of headroom for various encapsulation overhead.

set interface ge-0/0/0 mtu 9192
set interface ge-0/0/0 family inet mtu 9000

More information about the juniper-nsp mailing list