Cisco 7206 IOS for PPPoE Termination

Sean Lazar knife at toaster.net
Mon Sep 24 01:02:02 UTC 2012


http://lmgtfy.com/?q=site%3Acisco.com+ios+broadband+aggregation+guide

On 9/23/12 1:50 PM, Shahab Vahabzadeh wrote:
> why joking Mark?
>
> On Mon, Sep 24, 2012 at 12:19 AM, Mark Gauvin <MGauvin at dryden.ca> wrote:
>
>> You are joking I hope
>>
>> Sent from my iPhone
>>
>> On 2012-09-23, at 3:38 PM, "Shahab Vahabzadeh" <sh.vahabzadeh at gmail.com>
>> wrote:
>>
>>> Dear Paul,
>>> Thanks for you reply, May I have those optimization knobs for
>>> virtual-template and throttles?
>>> Maybe looking into your configurations help me in this field.
>>> I will look for the service  provider image too.
>>> Thanks
>>>
>>> On Sun, Sep 23, 2012 at 11:17 PM, PC <paul4004 at gmail.com> wrote:
>>>
>>>> For this application, you may wish to consider the service provider
>> images.
>>>> The latest 15.x(S) image works, as it is the derivative of what was
>>>> formerly the service-provider oriented 12.2(SRx) images.
>>>>
>>>> However, it's unlikely to drop steady state CPU, but it may contain some
>>>> optimizations for concurrent PPP (re)negotiations on the G2 platform
>> during
>>>> session recovery.
>>>>
>>>> PPPoE will generally handle more users on ethernet as it is easier to
>> push
>>>> packets on when not dealing with the ATM encapsulations, but to what
>> extent
>>>> this holds true on the 7200, I can't tell you for sure.
>>>>
>>>> I'd also read the broadband aggregation guide under the IOS
>> documentation
>>>> on cisco.com, and tune all the knobs that may help you, there are some
>>>> pointers on what items on virtual-templates are punitive in performance,
>>>> other optional items such as disabling SNMP counters on virtual access
>>>> interfaces to reduce cpu usage, and other items that may help little by
>>>> little.  There are also various knobs to throttle PPPoE renegotiation
>> rates
>>>> during recovery.
>>>>
>>>> I wish you luck (and consider getting another and/or bigger router to
>>>> split the load).
>>>>
>>>> On Sun, Sep 23, 2012 at 1:23 PM, Shahab Vahabzadeh <
>>>> sh.vahabzadeh at gmail.com> wrote:
>>>>
>>>>> Which software you used before for them?
>>>>>
>>>>> On Sun, Sep 23, 2012 at 10:43 PM, Rinse Kloek <
>> rinse.kloek at isp.solcon.nl
>>>>>> wrote:
>>>>>> 6000 PPP users on a NPE-G2 is way too much imho. Currently we do no
>> more
>>>>>> than 3000 users on a NPE-G2 with PPPoA. (Max cpu 50%).
>>>>>> 5 years ago, we did about 5000 users on a NPE-G2, but as traffic
>> ratio's
>>>>>> grow each year the maximum users a NPE-G2 can handle will drop each
>>>>> year.
>>>>>> Don't forget an NPE-G2 is a software based plaform, so traffic
>>>>> forwarding
>>>>>> is done in software CPU.
>>>>>>
>>>>>> regards,
>>>>>> Rinse Kloek
>>>>>> Op 23-9-2012 20:51, Shahab Vahabzadeh schreef:
>>>>>>
>>>>>>> Hello everybody,
>>>>>>> I am using C7206 VXR NPE-G2 routers as BRAS in my network and the
>>>>> current
>>>>>>> IOS is *c7200p-adventerprisek9-mz.**124-24.T.bin* on them.
>>>>>>> Also their memory upgraded to 2GB instead of 1GB.
>>>>>>> And I have near 6500 online user on each of my BRAS and there is no
>>>>>>> speciefic feature except aaa with radius and ordinary features.
>>>>>>> There router is also terminating dot1q too because my PSTN centers
>>>>> traffic
>>>>>>> comes through dot1q vlans to BRAS es.
>>>>>>> I think I have some problem with current IOS, My CPU Usage is
>> abnormal
>>>>> and
>>>>>>> Its near %70 or %80.
>>>>>>> And when I have a network problem and some of PSTN centers goes down
>>>>> CPU
>>>>>>> go
>>>>>>> to %99 and it gets problem to recovery.
>>>>>>> Do you know any good IOS for me as a service provider to use?
>>>>>>> I heard that some service providers have near 8000 online user on
>> 7206.
>>>>>>> Thanks
>>>>>>>
>>>>>>>
>>>>>
>>>>> --
>>>>> Regards,
>>>>> Shahab Vahabzadeh, Network Engineer and System Administrator
>>>>>
>>>>> Cell Phone: +1 (415) 871 0742
>>>>> PGP Key Fingerprint = 8E34 B335 D702 0CA7 5A81  C2EE 76A2 46C2 5367
>> BF90
>>>>
>>>
>>> --
>>> Regards,
>>> Shahab Vahabzadeh, Network Engineer and System Administrator
>>>
>>> Cell Phone: +1 (415) 871 0742
>>> PGP Key Fingerprint = 8E34 B335 D702 0CA7 5A81  C2EE 76A2 46C2 5367 BF90
>
>




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