multi homing pressure

Jon Lewis jlewis at lewis.org
Thu Oct 20 04:33:08 UTC 2005


On Wed, 19 Oct 2005, Owen DeLong wrote:

> Yes and no.  Most people that will spend the $$ for routers with enough
> memory to handle multiple full feeds are also looking to get a certain
> amount of TE capability out of the deal, and, at that point, babysitting
> the TE becomes more than 0.01 FTE (closer to 0.30 in my experience).

Some may.  The one I'm talking about with the Imagestreams really doesn't. 
They've overprovisioned the heck out of their network after the C&W/PSI 
thing and really have no need for TE.  In fact, no attempt at all has been 
made to influence their traffic.  Just a simple let BGP take care of it 
config.

> That's an interesting way to look at it.  I think that at the time those
> routers were designed (I'm assuming you are talking AGS+ here), there

I wasn't thinking that far back.  I'm talking about the 3640 and 
2610/2611/2620/2621s.  For many end users, these routers would be just 
fine for multihoming with a few T1s, if they had the RAM capacity for 
several full views.  At the time the above customer was multihoming, their 
only real options with cisco were the 3660 and 7200 series, which were 
overkill (and overpriced if you want new gear from say Tech Data).

cisco finally has come out with replacements for those "little routers" 
with much bigger RAM capacities...but they're a little late.

> That could be true, but, how long do you really think the RAM will last?

I suppose it won't.  I just checked up on them.  Seems they must have 
canceled their other provider (I hope so anyway...its been down at least a 
week), and with just 1 full view from us, they have 2.3mb free.  I guess 
its time to get them on the phone and see about either shutting off BGP or 
just sending them 0/0.  Another 3640 bites the dust.

----------------------------------------------------------------------
  Jon Lewis                   |  I route
  Senior Network Engineer     |  therefore you are
  Atlantic Net                | 
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