Cisco 7206 IOS for PPPoE Termination

Shahab Vahabzadeh sh.vahabzadeh at gmail.com
Sun Sep 23 20:36:47 UTC 2012


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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