Re: Custom Queuing

hahahaha

Unbelievable.

On Mon, Aug 24, 2009 at 6:25 PM, Scott Morris <smorris_at_ine.com> wrote:

> Now where's the fun in reading Petr's posts? ;)
>
> And as any good CCIE (or candidate) should get down to, let the router do
> the talking....
>
> Having a router with several OSPF and BGP sessions on it, a quick
> custom-queueing setup, and several "clear ip bgp *" and "clear ip ospf proc"
> affirmed that routing updates do not get counted in queue 0.
>
> My idea was to let them fall to default or to system (I set up two other
> queues for fun)
>
> R1#sh queueing int f0/0
> Interface FastEthernet0/0 queueing strategy: custom
>
> Output queue utilization (queue/count)
> 0/356 1/5 2/191640 3/124 4/0 5/0 6/0 7/0 8/0
> 9/0 10/0 11/0 12/0 13/0 14/0 15/0 16/0
> R1#sh queueing custom
> Current custom queue configuration:
>
> List Queue Args
> 1 3 default
> 1 1 protocol ip list 111
> 1 2 protocol ip list 112
> R1#sh access-list
> Extended IP access list 111
> 10 permit icmp any any (5 matches)
> Extended IP access list 112
> 10 permit tcp any any eq telnet
> R1#
>
> Now, the entertaining part is my ACL for telnet has the most matches, but I
> have no telnet going on at all (grin) Haven't figured that one out yet, but
> that's out of scope for our amusement.
>
> So we've determined that Anthony WAS indeed correct about the routing
> protocols NOT being part of queue 0. Too bad he's asleep at the moment and
> won't read this until morning! (Grin)
>
>
>
>
> *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
>
>
> Internetwork Expert, Inc.
>
> http://www.InternetworkExpert.com <http://www.internetworkexpert.com/>
>
> Toll Free: 877-224-8987
>
> Outside US: 775-826-4344
>
>
> Knowledge is power.
>
> Power corrupts.
>
> Study hard and be Eeeeviiiil......
>
>
> Narbik Kocharians wrote:
>
> Scott,
>
> I did not see *routing updates* included in the doc that you provided. But
> look what i found:
>
>
> http://blog.internetworkexpert.com/category/ccie-routing-switching/qos/page/2/
>
>
>
>
> On Mon, Aug 24, 2009 at 4:54 PM, Anantha Subramanian Natarajan <
> anantha.natarajan_at_gravitant.com> wrote:
>
>> Thank you scott for the explanation.
>>
>> Regards
>> Anantha Subramanian Natarajan
>>
>> On Mon, Aug 24, 2009 at 6:12 PM, Scott Morris <smorris_at_ine.com> wrote:
>>
>> > And by that logic, RIP would be included. What you're referring to
>> > (assumed, whether intended or not!) is the PAK Priority concept that a
>> > router does to important traffic. :) That's true of any of the QoS
>> > functions.
>> >
>> > I just figured it was a slight against RIP to not specifically list it
>> in
>> > Custom queueing's Queue 0, but it may have been an oversight (grin)
>> Bummer
>> > on that.
>> >
>> >
>> >
>> >
>> > *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
>> >
>> >
>> > Internetwork Expert, Inc.
>> >
>> > http://www.InternetworkExpert.com <http://www.internetworkexpert.com/><
>> http://www.internetworkexpert.com/>
>> >
>> > Toll Free: 877-224-8987
>> >
>> > Outside US: 775-826-4344
>> >
>> >
>> > Knowledge is power.
>> >
>> > Power corrupts.
>> >
>> > Study hard and be Eeeeviiiil......
>> >
>> >
>> >
>> >
>> > Ryan West wrote:
>> >
>> > Anantha,
>> >
>> > I think you're understanding is correct:
>> >
>> > Rack1R1(config)#queue-list ?
>> > <1-16> Queue list number
>> >
>> > Rack1R1(config)#queue-list 0 ?
>> > % Unrecognized command
>> >
>>
>> http://www.cisco.com/en/US/partner/docs/ios/qos/configuration/guide/congstion
>> _mgmt_oview.html#wp1003648
>> >
>> > Queue number 0 is a system queue; it is emptied before any of the queues
>> numbered 1 through 16 are processed. The system queues high priority
>> packets,
>> such as keepalive packets and signalling packets, to this queue. Other
>> traffic
>> cannot be configured to use this queue.
>> >
>> > The phrase 'high priority packets, such as' is ambiguous, so I'm not
>> really
>> sure about routing updates.
>> >
>> > Clearly RIP qualifies as a high priority packet though :)
>> >
>> > -ryan
>> >
>> > -----Original Message-----
>> > From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com
>> <nobody_at_groupstudy.com>] On Behalf Of Anantha Subramanian Natarajan
>> > Sent: Monday, August 24, 2009 4:16 PM
>> > To: Narbik Kocharians; Cisco certification
>> > Subject: Re: Custom Queuing
>> >
>> > Hi Narbik,
>> >
>> > Thank you for the response.Is queue 0 is user configurable .I may be
>> > totally wrong but for somereason I read that it cannot be set by
>> user.But
>> > will take your understanding until I get more clarity on that.
>> >
>> > Thanks Narbik
>> >
>> > Regards
>> > Anantha Subramanian Natarajan
>> >
>> > On Mon, Aug 24, 2009 at 3:10 PM, Narbik Kocharians <narbikk_at_gmail.com>
>> <narbikk_at_gmail.com>wrote:
>> >
>> >
>> >
>> > 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>
>> <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
>> >
>> >
>> > Internetwork Expert, Inc.
>> > http://www.InternetworkExpert.com <http://www.internetworkexpert.com/><
>> http://www.internetworkexpert.com/>
>> <http://www.internetworkexpert.com/> <http://www.internetworkexpert.com/>
>> >
>> > Toll Free: 877-224-8987
>> >
>> > Outside US: 775-826-4344
>> >
>> >
>> > Knowledge is power.
>> >
>> > Power corrupts.
>> >
>> > Study hard and be Eeeeviiiil......
>> >
>> >
>> >
>> >
>> >
>> >
>> > 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 #15626http://www.INE.com<http://www.ine.com/><
>> http://www.ine.com/>
>> <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
>> >
>> >
>> > Blogs and organic groups at http://www.ccie.net
>> >
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>> >
>> >
>> >
>> >
>> >
>> >
>> > --
>> > Narbik Kocharians
>> > CCSI#30832, CCIE# 12410 (R&S, SP, Security)www.MicronicsTraining.com<http://www.micronicstraining.com/>
>> <http://www.micronicstraining.com/> <http://www.micronicstraining.com/>
>> <http://www.micronicstraining.com/>
>> > Sr. Technical Instructor
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>>
>>
>
>
> --
> Narbik Kocharians
> CCSI#30832, CCIE# 12410 (R&S, SP, Security)
> www.MicronicsTraining.com <http://www.micronicstraining.com/>
> Sr. Technical Instructor
>
>

-- 
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