RE: [nsp] 2924/linux vlan

From: Andy Harding (aharding@verio.net)
Date: Mon Apr 08 2002 - 18:20:14 EDT


> > The 7200 router:
> > interface FastEthernet0/0.1
> > encapsulation dot1Q 127
> > ip address 192.168.20.1 255.255.255.0
> > !
>
> router config looks good

maybe too hasty - you may need to match the vlan # to the sub-int#, ie:

interface FastEthernet0/0.127 ! rather than 0.1
  encapsulation dot1Q 127
  ip address 192.168.20.1 255.255.255.0

this has tripped me up on ISL before now, not sure whether same is true on
dot1q.

also since this is dot1q rather than ISL & native vlan matters, you need to
make sure these match - probably on the vlan you expect most traffic as this
cuts out the overhead:

router(config-subif)#encapsulation dot1Q <native-vlan-#> native

switch(config-if)#switchport trunk native vlan <native-vlan-#>

-andy



This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:10 EDT