Re: Custom Queuing

From: Narbik Kocharians <narbikk_at_gmail.com>
Date: Mon, 24 Aug 2009 13:10:13 -0700

From what i recall, the system queue (Queue 0), is the priority Queue and it
handles Layer 2 keepalives ONLY (By default) and NOT routing updates,
however, you can assign them to Queue 0 if you need to.

On Mon, Aug 24, 2009 at 12:56 PM, Scott Morris <smorris_at_ine.com> wrote:

> My teeth don't feel longer. But yes, indeed... the queue 0 is used for
> many layer2 keepalives as well as routing protocol hellos/updates.
>
> Specifically IS-IS, EIGRP and OSPF use it for sure. I haven't found
> anything telling me whether BGP did or not, and I don't recall ever
> caring to do debugs on it to be sure, so I wouldn't count on that one.
>
> Perhaps someone whose teeth FEEL longer may remember something more on
> that (grin). RIP does not make that list, by the way. *shrug*
>
>
>
>
> *Scott Morris*, CCIE/x4/ (R&S/ISP-Dial/Security/Service Provider) #4713,
>
> JNCIE-M #153, JNCIS-ER, CISSP, et al.
>
> JNCI-M, JNCI-ER
>
> evil_at_ine.com
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> Anthony Sequeira wrote:
> > I seem to recall this system queue DOES NOT include routing protocol
> > traffic.
> >
> > Perhaps someone "longer in the tooth" can elaborate more for us.
> >
> > :-)
> >
> > Warmest Regards,
> >
> > Anthony J. Sequeira, CCIE #15626
> > http://www.INE.com <http://www.ine.com/>
> >
> > Test your Core Knowledge today!
> > Q: What OSPF feature allows LSA updates to be refreshed in groups, as
> > opposed to on-demand?
> > A: LSA Pacing
> > More Info:
> > http://www.cisco.com/en/US/docs/ios/11_3/feature/guide/ospfpace.html
> >
> >
> > On Aug 24, 2009, at 1:15 PM, Anantha Subramanian Natarajan wrote:
> >
> >> Hi All,
> >>
> >> I have a basic question on Custom Queuing.When we enable custom
> >> queuing on
> >> an interface on cisco routers,we will have 17 queues right.where
> >> queue 1 to
> >> 16 is user configurable and queue 0 is system queue(non-user
> >> configurable).I
> >> am understanding that system queue will take care keepalives and
> >> sigalling
> >> traffic.Is it includes Routing protocol traffic and also traffic
> >> destined to
> >> routers or sourced from routers.
> >>
> >> Thanks for the help
> >>
> >> Regards
> >> Anantha Subramanian Natarajan
> >>
> >>
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-- 
Narbik Kocharians
CCSI#30832, CCIE# 12410 (R&S, SP, Security)
www.MicronicsTraining.com
Sr. Technical Instructor
Blogs and organic groups at http://www.ccie.net
Received on Mon Aug 24 2009 - 13:10:13 ART

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