[c-nsp] EoMPLS on PA-FE-TX

Christopher E. Brown chris.brown at acsalaska.net
Thu Oct 6 17:13:59 EDT 2005


sthaug at nethelp.no wrote:
>>>>Is the MTU limitation also present on 7500 in 12.0S?  I'm getting 
>>>>reports from a customer that anything over 1494 is being discarded, but 
>>>>that could be an intermediate switch that I can't touch until tonight.
>>>
>>>
>>>It's been a while since I tried EoMPLS on 7500/PA-FE-TX, but as far as
>>>I can remember, this limitation is also present on 7500 in 12.0S.
>>
>>Isn't there an ip mpls-mtu setting that allows for this?
>>
>>i.e.
>>
>> mpls label protocol ldp
>> tag-switching mtu 1580
>> tag-switching ip
> 
> 
> Sure, the command exists - but it doesn't do what you want, unfortunately.
> 
> Steinar Haug, Nethelp consulting, sthaug at nethelp.no


Ahem, the "tag-switching mtu 1580" only applies to tagged traffic.
implicit null tags (native plane) do not count.

EoMPLS is native plane...


You need to also spec explicit tagging on the interface in question...


-- 
------------------------------------------------------------------------
Christopher E. Brown   <chris.brown at acsalaska.net>   desk (907) 550-8393
                                                     cell (907) 632-8492
IP Engineer - ACS
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