Rado,
Thanks for the reply. That's a very useful doc. In my particular
situation I'm trying to set the MTU on an Ethernet sub-interface. It
would appear that this isn't possible (though it would be useful if one
could at least fake it and get the VC up when you know that closer to
the edge you're taking care of enforcing a set MTU. That doc will
definitely come in handy though.
Thanks for the input
Justin
Rado Vasilev wrote:
http://www.cisco.com/en/US/docs/ios/mpls/configuration/guide/mp_any_transport_ps6350_TSD_Products_Configuration_Guide_Chapter.html#wp1187367
On 18 Jan 2009, at 02:31, Chris Phillips wrote:
Rado,
nyc1(config)#int te1/2.1254
nyc1(config-subif)#mtu ?
<9216-9216> MTU size in bytes
nyc1(config-subif)#mtu 9216 ?
<cr>
nyc1(config-subif)#mtu 9216
% Sub-interface TenGigabitEthernet1/2.1254 does not support user
settable mtu
Afaik, all sub-interfaces assume the MTU of the primary physical port,
and that this cannot be changed.
Rado Vasilev wrote:
Justin,
You should be able to fix the MTU mismatch issue without changing the
interface/sub-interface MTU.
conf t
interface xxx/x.10
xconnect ..
mtu xxx
regards,
Rado
On 18 Jan 2009, at 01:41, Justin Shore wrote:
Chris Phillips wrote:
The MTU definitely needs to be the same, in my experience.
However, I am somewhat new to MPLS and am very much still in the
learning process. But, that would be the first thing that I would
change.
I'm in the same boat for L2VPNs. I have somewhat better knowledge
of L3VPNs at this point. We're just now really diving into L2VPNs.
I did change the MTU and that fixed it. That presents a design
issue for me which I detailed in a self-reply to the list. I'm now
trying to figure out what best practice is for EoMPLS on sub-ints
when the sub-int involves customer and infrastructure VLANs. The
best answer may be to not mix them. Thoughts?
Thanks
Justin
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