[CentOS] Interface bonding?

Fri Apr 11 23:05:10 UTC 2008
Les Mikesell <lesmikesell at gmail.com>

John wrote:
> Now for what version of the 2900 you have I do not know. But it seems
> the info on Ciscos site is kind of misleading in places. There is some
> documentation that says it works and some say you have to have the add
> on modules. 
> Your best bet if your not comfortable with the IOS command line is to
> use the Web Interface or the Cisco Works Manager Interface. I say this
> because I have really no way of knowing your experiance on this.  I
> wouln't do this on a live production switch. 

Trunking has to do with carrying multiple tagged vlans on one port - and 
the 2900xl with a 12.x IOS should do that in either ISL (cisco) or dot1q 
  mode.  But I thought we were grouping ports instead.  You should be 
able to do both, but the interfaces in the same port group would have to 
have the same trunk encapsulation set.  There is a separate 'vlan 
database' command on those switches where you have to add the vlan 
numbers that you want a trunk to carry - and it doesn't get saved in the 
visible config file.  If you have 'switchport access vlan nnn' on any 
interface that number goes in the vlan database automatically but you 
just want the trunk ports to pass some other vlans through you have to 
add them explicitly.

   Les Mikesell
    lesmikesell at gmail.com