Anyone Deployed Ascend's GRF IP Switch?

Gary Zimmerman garyz at
Tue Sep 2 22:02:15 UTC 1997

Nathan and Rob,

We have several of the Ascend routers deployed also.  I can tell you from
our experience Ascend has improved the boot times, but we need to really
discuss what type of customers you have.  If you have BGP customers, this
takes minutes up to about 8 or 9 with our current load.  If you are talking
static, 1 to 3 minutes.  We watch these figure very close here at SAVVIS. 
It just takes time to get the cutomers BGP session back active.  We are
working with Ascend on several issues including BGP sessions and customer
load order.  More memory and a faster processors do help as we and Ascend
continue to work to make it a better product.

Gary Zimmerman
V.P. Network Engineering
SAVVIS Communication Corp.
Office: 314.719.2423

> From: Nathan Stratton <nathan at>
> To: Rob Skrobola <rjs at>
> Cc: Jessica Yu <jyy at>; Damon Hammis <damonh at>;
nanog at
> Subject: Re: Anyone Deployed Ascend's GRF IP Switch? 
> Date: Tuesday, September 02, 1997 8:58 AM
> On Tue, 2 Sep 1997, Rob Skrobola wrote:
> > Believe it. Three words: Per prefix policy.. And yes, it does have a
> > signifigant effect on time to full reachability of any router. 
> We do prefix policy filtering on all our routers, and yes it will effect
> the time to full reachability of ANY router. What we were talking about
> was how long did it take for a GRF to boot up. Someone said it took 10
> or longer from a cold start for the system boot up. I agreed that the GRF
> did take a long time to boot, but that ascend had worked on that and it
> boots much faster now. 
> Nathan Stratton                             President, CTO, NetRail,Inc.
> ------------------------------------------------------------------------
> Phone   (888)NetRail                           NetRail, Inc.
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> WWW                Atlanta, GA 30303
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> "No king is saved by the size of his army; no warrior escapes by his
> great strength.                                        - Psalm 33:16

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