[nsp] Lotus replication ??mtu problem

[khiz]

  Hi
sh mpls interface details shows an mtu size which is much higher than 1500 i.e 4602 bytes on either end.

 the actual scenario is 

site A -----  PE1--- mPLS cloud ----- PE2 --- site B
                                         |
                                         |----Site C
SIte A can replicate withe site c but not with site B
the serial encapsulation between PE2 and site B is hdlc while between PE2 and SIte c is PPP. However both hv mtu size of 1500


The switches on both LANs of site B and SIte c are the same...



Knms



On Sun, 20 Jun 2004 Edward B.Dreger wrote :
>k> Date: 20 Jun 2004 15:32:39 -0000
>k> From: khiz   <khiznms at red...>
>
>k> can i do something on the CE and or PE router to solve the MTU
>k> issue?
>
>What does
>
> 	show mpls interfaces detail
>
>tell you?  MTU should be at least 1500.  When running FRF.16/MFR
>on 12.3T, the actual MTU was four bytes smaller than stated.
>
>What ethernet switches are you using?  Some switches support
>1518-octect frames *iff* the packets are ethertype 0x8100, but
>otherwise are limited to 1514 octets.  (I'm excluding CRC octets
> from frame sizes.)
>
>
>Eddy
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