[c-nsp] NBAR & QoS

root net rootnet08 at gmail.com
Wed Sep 10 12:02:08 EDT 2008


Ok. I will read up on it for the IOS release. I hate to upgrade since this
would involve taking the router down and it has been up for over year.
That's great about the memory. I will test it out and let you know my
findings.

rootnet

On Wed, Sep 10, 2008 at 10:40 AM, Church, Charles <cchurc05 at harris.com>wrote:

>  From what I've seen, NBAR doesn't use a whole lot of memory, it'll grab a
> small amount off the bat when you enable it, and that's it.  Maybe 10 megs.
> I'm not familiar with 12.2SB though.  I think you'd have to read the release
> notes for NBAR in the two trains.  They've added more protocol support in
> the newer trains, that might be reason enough.  Unless you can add the PDLMs
> to 12.2SB.  I think 12.4 would be the most troublefree path though.
>
> Chuck
> ------------------------------
> *From:* root net [mailto:rootnet08 at gmail.com]
> *Sent:* Wednesday, September 10, 2008 11:28 AM
> *To:* Church, Charles
> *Cc:* cisco-nsp at puck.nether.net
> *Subject:* Re: [c-nsp] NBAR & QoS
>
>  Chuck,
>
> I am pushing about 13Mbit with the small DSL base and sub interfaces.  I
> expect to push more here by the end of Oct and wanted to make sure we are
> throttling the file sharing before it gets bad.  I am running 12.2 SB what
> advantages do I have for running 12.4?  Also what does your memory look
> like?
>
> rootnet
>
> On Wed, Sep 10, 2008 at 6:57 AM, Church, Charles <cchurc05 at harris.com>wrote:
>
>> We're using it on a 2821 for the same purpose - QOS to 2 upstreams, and
>> file sharing shaping.  Currently running about 10% CPU when pushing
>> about 9mb through it.  It's probably good for almost a full DS-3 on the
>> 2821, at least in our application.  If you can run 12.4 on the NPE225,
>> I'd say enable it on a couple subints (protocol discovery) at a time,
>> and keep an eye on the cpu.  If CPU stays low, keep adding to it.  I
>> seem to remember having some weird NBAR issues with 12.3.   How much
>> traffic are you pushing through it currently?  20 to 30 customers
>> doesn't sound like it'd be a problem.
>>
>> Chuck
>>
>> -----Original Message-----
>> From: cisco-nsp-bounces at puck.nether.net
>> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of root net
>> Sent: Wednesday, September 10, 2008 4:32 AM
>> To: cisco-nsp at puck.nether.net
>> Subject: [c-nsp] NBAR & QoS
>>
>>
>> Hello,
>>
>> I am looking into running NBAR along side with QoS in our network.  I
>> was
>> wondering what the list was doing if running NBAR.  I want to protect
>> against excessive file sharing customers or at least throttle those
>> specific
>> applications.  Some suggestions as the best place to configure this in a
>> network or what you all are doing is appreciated? Maybe even running on
>> a
>> mirror port?
>>
>> My thoughts are placing on Cisco 7206 NPE-225/256MB box but am not sure
>> if
>> we should upgrade to a 7204VXR NPE-400/512Mb or not. This box runs
>> terminates static (no PPPoE) DSL customers and about 20 to 30
>> subinterfaces.  Although may move to PPPoE in the future. CPU usage is
>> light
>> and memory operates around 120MB free give or take.
>>
>> Thanks in advanced!
>>
>> RootNet08
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>
>


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