Cell Relay Archive

[holdrege@eisner.decus.org (Matt Holdrege)]

In article <34E73A4B.4B4EBE7B@ibm.net>, glen@ibm.net writes...
>Malcolm,
> 
>I have designed and helped deploy a national SMDS based banking network
>in the UK, using 4Mbps and 2Mbps access, based upon Cisco routers (7500
>series). The SMDS service was provided by British Telecom.
> 
>Used LIS (logical IP subnets) in OSPF environment for both head office
>and branch environment. 250 branches supported from multiple
>concentrators (6 of them) (64Kbps to each branch) with the concentrators
>accessing SMDS via dual 2Mbps E1 feeds. Central sites (multiple for DR,
>disaster recover) access SMDS via dual 4Mbps (physical layer is E3
>34Mbps with Digital Link DSUs) with physical seperacy.
> 
>I forget what equipment the BT SMDS network itself is based upon, I
>could probably find the information if I dug it up from my archives.

It's based on Ascend switches which pretty much own the SMDS market such as it
is.

I agree that it's a pretty slick technology for certain applications. However
it only seems popular in three places. The UK, California and the Washington DC
area.