[c-nsp] Cisco MultiLink PPP

Joe Maimon jmaimon at ttec.com
Sun Mar 27 12:00:16 EST 2005



Gert Doering wrote:
> Hi,
> 
> On Fri, Mar 25, 2005 at 11:40:00PM -0800, Lawrence Wong wrote:
> 
>>Any idea how many E1 MLPPP is supported on the 2621? I
>>don't think I will grow beyond 2 channels but if I
>>need to replace the 2514, it would be on the safe side
>>to cater for 3-4 E1 MLPPP just in case (would a 3620
>>be good enough?) .
> 
> 
> Stay away from the 3620.  It's incredibly noisy, quite slow, needs much
> space in the rack (1RU, but very 'deep'), can't take useful amounts of 
> memory, has no onboard LAN ports, and is end-of-life.
> 
> A 2621XM would be a good choice (faster, more memory, and less footprint
> than the 3620).
> 
>
3620 is cheaper resold than XM, supports 4 FE interfaces, with 4 WIC 
slots with apropriate NM's, should have enough ram/flash to handle 12.4 
when it gets here, not to mention all the 12.3 that the vanilla 26xx cant.

Which can translate easily enough into 3 100mbps FD PPPoE connections 
(something that currently requires dedicated ethernet interfaces to be 
done properly) and one dot1q lan interface with CBAC/ACL/NAT firewalling 
plus 4 (or more) T's.

Toss in an AIM and you should be able to handle up to 30mbps of 
encryption. Nothing to sneeze at.

So this is a nice enough platform if you are looking for something 
better than resold 26xx - non XM.

Both the 2620 and 3620 are better than all 17xx due to lack of dot1q 
support, which is something I tried to raise on this list previously.

Joe


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