[j-nsp] What are L2 channel errors?

[Harry Reynolds]

BTW, an associate suggested this might be the result of cisco using
un-tagged native vlan, which would result in untagged frames arriving on
the JNI tagged interface. It's worth a look.


Cheers, and thanks Stacy.


 

> -----Original Message-----
> From: juniper-nsp-bounces at puck.nether.net 
> [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of 
> Harry Reynolds
> Sent: Wednesday, April 05, 2006 12:04 PM
> To: Matthew Johnson; juniper-nsp at puck.nether.net
> Subject: Re: [j-nsp] What are L2 channel errors?
> 
> Specifically, it cannot find an entry for the layer 2 circuit 
> identifier, i.e., receiving a frame with a given vlan tag 
> when that vlan is not configured on the corresponding 
> interface. Sounds to me like you have trunked vlans that have 
> not been defined on the JNI interface.
> 
> HTHs
> 
>  
> 
> > -----Original Message-----
> > From: juniper-nsp-bounces at puck.nether.net
> > [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Matthew 
> > Johnson
> > Sent: Wednesday, April 05, 2006 11:41 AM
> > To: juniper-nsp at puck.nether.net
> > Subject: Re: [j-nsp] What are L2 channel errors?
> > 
> > This counter increments when the software could not find a valid 
> > logical interface (that is, something like t3-1/2/3.0) for 
> an incoming 
> > frame.
> > 
> > Are you able to use the interface?
> > 
> > 
> > MLJ
> > 
> > 
> > 
> > >From: joe mcguckin <joe at via.net>
> > >To: juniper-nsp at puck.nether.net
> > >Subject: [j-nsp] What are L2 channel errors?
> > >Date: Wed, 5 Apr 2006 11:29:04 -0700
> > >
> > >On one of our GigE interfaces, we accumulate L2 channel 
> errors at a 
> > >rate of about 50/sec.
> > >
> > >It's plugged into a Cisco switch, serving as a trunked interface.
> > >
> > >What is a common cause of this?
> > >
> > >Thanks,
> > >
> > >Joe
> > >
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