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From: tjh+@andrew.cmu.edu (Tom Holodnik)
Newsgroups: comp.dcom.sys.cisco
Subject: Re: Recommended maximum number of serial lines on a gateway
Message-ID: <8beOPyG00WCo8ZMgZb@andrew.cmu.edu>
Date: 1 Feb 91 17:35:58 GMT
References: <31893@boulder.Colorado.EDU>,
	<1991Jan31.130213.1560@cs.wayne.edu>
Organization: Computing Systems, Carnegie Mellon, Pittsburgh, PA
Lines: 22
In-Reply-To: <1991Jan31.130213.1560@cs.wayne.edu>

> Excerpts from netnews.comp.dcom.sys.cisco: 31-Jan-91 Re: Recommended
> maximum num.. Brian Holmes@jake.tmc.ed (673)

> In article <31893@boulder.Colorado.EDU> vaf@Valinor.Stanford.EDU (Vince
> Fuller) writes:
> >If we assume that we want to allow each T-1 the potential to run
> >at full-speed, we're probably limited to 6 ports (6x1.5MB = 9MB) by the
> speed
> >of the Ethernet - is this considered excessive?

> Since the back-plane of an AGS+ is 500MBps, 6 T1 ports is probably
> a pretty light load.  In the latest price list I have they have a
> layout with an AGS having 32 v.35 interfaces. 

Do you mean "an AGS+ having 32 v.35 interfaces?" 

	I haven't seen the latest hardware offerings from cisco. Are they
shipping a T1 card for the high speed (CBus) backplane? Seems to me that
they should. Utilizing the CBus backplane, rather than the Multibus,
would give one chassis greater capacity to handle T1 lines. 

-tom