Cell Relay Archive

[Phil Ramsden <phil_ramsden@hp.com>]

Joe Lutz wrote:
> 
> For a current project I am integrating a prototype atm cable modem into
> an internet access architecture.  Our ATM edge device is a Cisco 7513
> router with an AIP (atm interface processor) card that interfaces to the
> propritary atm network that transports ip data from the head end
> downstream to the home.  The ethernet side of the router is 10bT or
> 100bT to a Sun server.  Down stream at the subscriber home the
> connection is made to the PC's enthernet NIC via 10bT from the external
> cable modem.  The ATM connection is a PVC with RFC-1483 bridging
> carrying the ip traffic.
> 
> The problem: When the server is connected to router via 10bT no problem.
> When the server is connected to the router via 100bT throughput to the
> PC decreases by an order of magnitude.  The ATM network seems to choke
> on the higher rate.
> 
> Rate matching/flow control issues?  Anyone have some thoughts on this?
> 
> Thanks .. Joe L.

Is it possible that the data actually makes it through the ATM network
OK, but you're saturating the 10 Mb client side? Some more specifics on
the ATM configuration might help.
-- 
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 Phil Ramsden        *      Internet: phil_ramsden@hp.com
                               
 My opinions only.......mine, all mine! 
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