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

[Tóth András]

And if you add "switchport" and "switch virtual link 1" on the port-channel
before adding Te1/16 as a member interface, like below?

int po5
 switchport
 switch virtual link 1

int te1/16
 channel-group 5 mode on

Best regards,
Andras



On Wed, Mar 13, 2013 at 4:57 AM, CiscoNSP List <cisconsp_list at hotmail.com>wrote:

>
> Thanks Andras -
>
>
> I removed portchan5, defaulted te1/16, re-added portchan5 and then only
> added "channel-group 5 mode on" under te1/16, and still get the following
> error:
>
>
> *Mar 12 19:51:33.155: %EC-5-CANNOT_BUNDLE2: Te1/16 is not compatible with
> Po5 and will be suspended (trunk mode of Te1/16 is dynamic, Po5 is trunk)
>
>
> These are 2 new switches, so dont have smartnet on them (yet)....Ill get
> smartnet this week and open a TAC case as it does look like it is a bug.
>
>
> Thanks again for your help.
>
>
>
> ------------------------------
> Date: Wed, 13 Mar 2013 03:14:14 +0100
>
> Subject: Re: [c-nsp] 4500-X VSS %EC-5-CANNOT_BUNDLE2
> From: diosbejgli at gmail.com
> To: cisconsp_list at hotmail.com
> CC: gert at greenie.muc.de; cisco-nsp at puck.nether.net;
> cisco-nsp-bounces at puck.nether.net
>
>
> Those config lines are added because it's a VSL (Virtual Switch Link)
> between the two VSS boxes.
>
> When you configure VSL, all existing configurations are removed from the
> interface except for specific allowed commands. When you configure VSL, the
> system puts the interface into a restricted mode. This means that only
> specific configuration commands can be configured on the interface.
>
> The following VSL configuration commands are inserted automatically on all
> VSL member ports:
> switchport mode trunk
> switchport nonegotiate
> no lldp transmit
> no lldp receive
> no cdp enable
> service-policy output VSL-Queuing-Policy
>
>
> Also note the following:
> In VSL restricted mode, only these configuration commands are available:
> channel-group
> ...
>
> This seems to suggest that you should not try to configure switchport
> commands on your VSL link. Please see the Configuration Guide below for
> details:
>
>
> http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/15.1.2/XE_340/configuration/guide/vss.html
>
>
> If you still find that there's an error in the simple process of adding
> interfaces to the port-channel when it's used as a VSL, then I'd suggest to
> open a TAC case because it might be a new bug, given that VSS on 4500 is a
> pretty new feature, but it seems you just don't need to mess with
> switchport config on VSL ports.
>
> Best regards,
> Andras
>
>
>
> On Wed, Mar 13, 2013 at 12:39 AM, CiscoNSP List <cisconsp_list at hotmail.com
> > wrote:
>
>
>
> 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
>
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