[c-nsp] 7200 and the PA-MC-2T3+ or PA-MC-2T3-EC PAs

[Tony Varriale]

Seconded everything said below.  I was interested in them pretty much for 
MLPPP and the offload.  These were run with G1s and had no issues.

Here is a good read on Cisco's site:
http://www.cisco.com/en/US/prod/collateral/modules/ps2033/prod_white_paper0900aecd8056d3cb.html

Make sure you read the release notes.  Need to run 12.4(15)T1 or higher (I 
think it will install on 11T).  Also note there is another small gotcha when 
going from to 15T.  Reference FPD in this document to find that gotcha 
http://www.cisco.com/en/US/docs/interfaces_modules/port_adapters/install_upgrade/multichannel_serial/pa-mc-t3-ec_install_config/10589cf.html

:)

tv
----- Original Message ----- 
From: "Stephen Fulton" <sf at lists.esoteric.ca>
To: "Justin Shore" <justin at justinshore.com>
Cc: "'Cisco-nsp'" <cisco-nsp at puck.nether.net>
Sent: Thursday, March 27, 2008 10:38 AM
Subject: Re: [c-nsp] 7200 and the PA-MC-2T3+ or PA-MC-2T3-EC PAs


> Hi Justin,
>
> WRT MLPPP, the PA-MC-2T3-EC's can offload MLPPP to the card, rather than
> the CPU.  Depending on which NPE is installed, that can make quite a
> difference.  And yes, the 7200's support multi-chassis MLPPP, with the
> proper IOS image.
>
> -- Stephen
>
> Justin Shore wrote:
>> I want to sanity check something before I give someone a quote.  I'm
>> trying to figure out what the differences are between the PA-MC-2T3+ and
>> the PA-MC-2T3-EC.  The desired application is to provide QoS-enabled T1s
>> grouped together on channelized DS3s.  Both PAs appears to be
>> channelized.  They appear to be the same.  The chassis I intend to put
>> them in is a 7206VXR with the G2.
>>
>> They want to provide QoS on these T1s.  Are there any QoS gotchas with
>> these PAs in the 7200s?
>>
>> The last question that comes to mind is MLPPP.  Can you combine T1s from
>> different DS3 interfaces and on different PAs into a single bundle?
>> This would provide circuit redundancy (to a degree) and PA redundancy.
>> Ideally we'd do multichassis MLPPP but I don't think the 7200s support 
>> that.
>>
>> The other solution that I'm supposed to spec out is doing DS3s for T1
>> termination on 6500/7600s.  The way I see it we could either go the
>> route of FlexWAN modules or DS3 SPAs.  Both would be terribly expensive
>> I'm afraid.  DS3 will be the hand-off from the local loops but I
>> supposed we could aggregate that into OCx if it makes financial sense.
>> I'm open to suggestions.
>>
>>
>> Thanks
>>   Justin
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