[c-nsp] PA-A1 and BRAS

[Frank Bulk]

We're using PPPoA with the NPE-400 on a 7206VXR.  IIRC, we used to have 128
MB of memomry, but as we approached 80% of the 2000 limit, we quadrupled it,
so that now we should be able to hit 8000.
Read these documents:
http://www.cisco.com/warp/public/794/7200faq.html#qa4
http://www.cisco.com/warp/public/794/pppoa_arch.html#topic8 [old]
http://www.cisco.com/univercd/cc/td/doc/product/dsl_prod/gsol_dsl/dsl_arch/g
dslarch.htm#1020036 [old]
for more details.

We're using 12.2-26, without any problems.

Frank

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Robert Hass
Sent: Tuesday, July 25, 2006 2:24 PM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] PA-A1 and BRAS

Hi

In near time I will be deploying few BRASes acting as Service Routers
for our ADSL subscribers. DSLAMs (Lucent) are based on our OC12 ATM
network (Catalysts 8510MSR).

I have three questions:

1) Will PA-A1-OC3SM= be good to terminate about 1k subscribers per OC3
(512/128 downstream/upstream) ? Shaping will be provided via CAR
(rate-limit input ..., rate-limit output ...). Or should I buy PA-A3
or PA-A6 ATM cards ? Currently I have about 6 PA-A1 cards, so I wish
deploy they instead of buying new cards. BRAS will be 7200VXR,
NPE-400/256MB RAM, 2xPOS OC3 to core, IOS 12.3.

2) How much PPPoA subscribers can I terminate on 7200/NPE-400 (each
subscriber will be home-user with 512/128kbit). And how much can I
terminate when NPE-400 will be upgraded to NPE-G1 (uplinks will be
exchanged from 2xPOS STM-1 to 2xGE).

3) Which IOS release you recommend for BRAS ? Is GD 12.3 is good choice here
?

Thanks for help,
Robert
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