Yo, the WS-6148-GE-TX does not support "large frame". You need the WS-6748 for large frame !
And i believe you have a sup32, well that doesnt support large frame either, unless it's a sup32-10GE. Maybe you could use 1 port for each VLAN, that way you don't need the 4 bytes header from 802.1Q - Sometimes I wish when people buy that WS-6148 line card Cisco make them sign "yes I agree to buy this line card that doesnt support large frame". dan On Sun, Aug 8, 2010 at 8:05 AM, Fabien Dedenon <[email protected]>wrote: > > Hi, > > Le 08/08/2010 13:33, Gert Doering a écrit : > > Hi, >> >> in addition to what Arie said: >> >> On Sun, Aug 08, 2010 at 01:02:46PM +0200, Marco Matarazzo wrote: >> >>> Router1#sh run int fa 2/32 >>> Building configuration... >>> >>> Current configuration : 245 bytes >>> ! >>> interface FastEthernet2/32 >>> description -VC-71172104-- >>> no ip address >>> ip verify unicast source reachable-via any allow-default >>> no ip redirects >>> no ip proxy-arp >>> xconnect x.y.z.56 71172104 encapsulation mpls >>> >> ... just put "mtu 1504" here, to take into account that a full-sized >> ethernet frame *plus* dot1q header is just bigger than without... :-) >> >> (Been there, cursed, found the answer) >> > Sorry Gert but WS-X6148-GE-TX by specification just won't permit this. mtu > config is event not permitted (SXIx). > (config)#interface gigabitEthernet 4/46 > (config-if)#mtu 1504 > % Invalid input detected at '^' marker. > >> gert >> > Cheers, > > Fabien > > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
