[c-nsp] 4500-X VSS %EC-5-CANNOT_BUNDLE2

[CiscoNSP List]

Thanks for the reply Gert.

On the 4500X, the sequence is (As you describe):

Create portchan, then add portchan to physical/member Int.

For VSS on the 4500X,  it is:

SW1(config)#int port-channel 5
SW1(config-if)#switchport
SW1(config-if)#switch virtual link 1
SW1(config-if)#no shut
SW1(config-if)#exit


SW1(config)#int TenGigabitEthernet1/16
SW1(config-if)#switchport mode trunk
SW1(config-if)#channel-group 5 mode on


The 4500X then "automagically" adds the following to the physical Int (And also restricts what commands you can enter on the member Interface)

 switchport nonegotiate
 no lldp transmit
 no lldp receive
 no cdp enable
 service-policy output VSL-Queuing-Policy






> Date: Tue, 12 Mar 2013 09:39:58 +0100
> From: gert at greenie.muc.de
> To: cisconsp_list at hotmail.com
> CC: ed at edgeoc.net; cisco-nsp-bounces at puck.nether.net; cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] 4500-X VSS  %EC-5-CANNOT_BUNDLE2
> 
> Hi,
> 
> On Tue, Mar 12, 2013 at 12:42:46PM +1100, CiscoNSP List wrote:
> > Portchan conf (That fails):  (Hotmail will probably screw the formatting):
> > 
> > interface Port-channel5
> >  switchport
> >  switchport mode trunk
> >  switchport nonegotiate
> >  switch virtual link 1
> > 
> > And Int conf:
> > 
> > interface TenGigabitEthernet1/16 switchport mode trunk
> > switchport nonegotiate
> > no lldp transmit
> > no lldp receive
> > no cdp enable
> > channel-group 5 mode on
> > service-policy output VSL-Queuing-Policy
> 
> Don't configure stuff on member interfaces after joining a channel.  Ever.
> 
> (IOS should just disallow this in the first place)
> 
> 
> The "right" sequence of things is:
> 
>   int te1/16
>     switchport
>     channel-group 5 mode on
>     no shut
> 
> and then *everything else* is configured under "int port-channel 5", including
> trunk/no trunk, vlans, service-policy, ...
> 
> (For some stupid reasons, switchport/no switchport needs to be set on the
> interface first, before joining the channel)
> 
> gert
> -- 
> USENET is *not* the non-clickable part of WWW!
>                                                            //www.muc.de/~gert/
> Gert Doering - Munich, Germany                             gert at greenie.muc.de
> fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de