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Re: Question on IP with ATM

  • From: Jesus Garcia <jesusg@si.upc.es>
  • Date: Wed, 11 Jun 1997 20:55:13 +0000

Hello:


Mahesh V. Tripunitara wrote:
> 
> There're 3 or 4 Fore ASX 200 switches that we have access to. We have
> them connected "sequentially" using IISP. All hosts connected to each
> switch are on the same IP subnet. The "last" of these switches is then
> connected to a Cisco router, which has a wire going to another Fore
> switch, an Asx 1000, which connects us to the internet backbone. Hosts
> connected to the Asx 1000 are on a different IP subnet from the one for
> the other switches.
> 
> What is the "best" way to bypass the router and connect the Asx 200
> switches to the Asx 1000 directly? Should we run IP over ATM instead of
> LANE in all the hosts? Is that the answer?

	Use spans insted of IISP, you would get anutomatic ATM routing, its a
fore propietary P-NNI
	
	If your ATM adaptor cards of the host are fore use foreip, in switches
and hosts.
	Else lane means LECS(use well knonw addess) and LES-Bus in a switch,
and each switch with its LEC in order to manage them.
	      ip-over-atm means an arp-server(a switch or host), configure your
clients with the nsap (atm address) of the arp server.
		
	Between lane & ip-over-atm I prefer lane.
	  
	Hope this helps.
							Jesus Garcia.