[c-nsp] MTU settings on GSR linecard 3GE-GBIC-SC

[Jan Sandmaier]

Hi,

does anybody know the reason why I can configure a 9180 byte MTU on port 
0 and 1 on a GSR 3-port Gigabit Ethernet port (3GE-GBIC-SC) but only 
4470 byte on the third port. I use IOS 12.0(32)S12 and 12.0(31)S6.

12012-lab(config-if)#exit
12012-lab(config)#int Gig 2/0
12012-lab(config-if)#mtu ?
  <1500-9180>  MTU size in bytes

12012-lab(config-if)#exit
12012-lab(config)#int Gig 2/1
12012-lab(config-if)#mtu ?
  <1500-9180>  MTU size in bytes

12012-lab(config-if)#int Gig 2/2
12012-lab(config-if)#mtu ?
  <1500-4470>  MTU size in bytes

Thanks,
Jan