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From: aggarwal@nisc.jvnc.net (Vikas Aggarwal)
Newsgroups: comp.dcom.sys.cisco
Subject: Re:  Recommended maximum number of serial lines on a gateway
Message-ID: <31904@boulder.Colorado.EDU>
Date: 30 Jan 91 23:41:41 GMT
Sender: daemon@boulder.Colorado.EDU
Lines: 18

>> at full-speed, we're probably limited to 6 ports (6x1.5MB = 9MB) by the speed
>> of the Ethernet - is this considered excessive? In the case of 56KB ports, I

Just a reminder that each T-1 is full duplex and the potential flow at
a T-1 interface can be 1.5x2 Mb/s at full capacity. However, if you are
considering the ethernet only, you pretty much still get 6 T-1's - we
took the Multibus speed into consideration for average sized packets and
pretty much got the same value. In fact, I use a figure of 6 T1's and no
ethernet, or 5 T-1's and one ethernet (if you construct a model and calc
the worst case, you would end up with what I just mentioned).



-vikas
vikas@jvnc.net						(609) 258-2403
Network Engineering					         -2400
			JvNCnet, Princeton, NJ
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