[nsp] Cisco ATM switches

[Todd, Douglas M.]

Vincent:

I have quickly read through this thread, sorry if I am repeating some
ideas/questions.

Some clarification with some questions:
1) You are looking to bridge Ethernet across ATM?
	- I know this can be done in the following methods:
		5500 w/dual phy boards
	- MPLS VPN
	- Possible dot1q aware 7200 with VPI/VCI matching/tagging.
2) I LMDS is wireless, no? Is there an midi/usb/fiber interface supplied with
this wireless device?
3) LS1010s are End of Lifed by Cisco, you should be aware of this. See the link
below for information:
http://www.cisco.com/en/US/products/hw/switches/ps1893/ps1891/index.html
I have not seen 1DS3 interface.  Is there a real reason why you need the ls1010?
Is this for bridging Eth over ATM?
4) The 7200s are great for OC3s and OSPF. No problems here, you can run in
either p-t-p, p-t-mp, bcast modes with the
propper atm map statements.
5) You might beable to accomplish all this using MPLS over ATM and have all work
fine w/out the 1010s (works like a camp!).

Just some thoughts.

==DMT>

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net]On Behalf Of Vincent De Keyzer
Sent: Thursday, December 04, 2003 09:28
To: 'Zach Wilkinson'; cisco-nsp at puck.nether.net
Subject: RE: [nsp] Cisco ATM switches


Hi Zach,

Thanks for your feedback.

I think I need to switch VPI/VCIs: on one side, I need to connect (with
STM1/SM) an LMDS Base Station; on another side, I need to connect a 7206
(STM1/MM), and on the third side an STM1 radio (MM again). And then also
some Ethernet ports, to terminate PVCs (for ATM-bridging of LANs).

I have three questions concerning this set-up:
1) Are there OC3/STM1 cards on the LS1010/Catalyst 8510 that have less than
4 ports?
2) Are there Ethernet cards? Couldn't find any on CCO, maybe need to look
better?
2) Can you activate OSPF between two PA-A3-OC3xM interfaces, provided there
is ATM connectivity between the two? I think I record some problems with
point-to-point versus point-to-multipoint or something?
[7206VXR with PA-A3-OC3]---(ATM Cloud)---[7206VXR with PA-A3-OC3]

Vincent


> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net 
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Zach Wilkinson
> Sent: mercredi 3 décembre 2003 20:11
> To: cisco-nsp at puck.nether.net
> Subject: Re: [nsp] Cisco ATM switches
> 
> 
> I'm not familiar with that Lucent device, but if you could 
> clarify some things ... How many ports of each type do you 
> need on this device? Do you need to switch cells (VPI/VCI => 
> VPI/VCI) or just gateway between ATM and non-ATM interfaces?
> 
> For an actual ATM switch the choices are limited.  The 
> LightStream 1010 is most popular, but supposedly Cat85x0 will 
> work as well.  If you're a xSP I think some Stratacom 
> equipment is still available. The real ATM switch company 
> used to be Fore, now Marconi, but most of my experience has 
> been on Alcatel/Xylan Omniswitch boxes.
> 
> For a simple gateway, any device (router, most likely) with 
> an ATM interface will do.
> 
> Zach
> 
> 
> ----- Original Message ----- 
> From: "Vincent De Keyzer" <vincent at dekeyzer.net>
> To: <cisco-nsp at puck.nether.net>
> Sent: Wednesday, December 03, 2003 3:55 AM
> Subject: [nsp] Cisco ATM switches
> 
> 
> > Hi,
> >
> > I need ATM switches with the following types of ports: 
> STM-1/OC-3 MM 
> > and
> SM,
> > 10Base-T. It does not need to switch at those rates, but that's the 
> > type
> of
> > interfaces I have to match on the equipment. Currently we are using 
> > Lucent PSAX600, but spare parts are becoming difficult to find.
> >
> > I am almost completely ignorant of ATM switches, so is 
> there anybody 
> > who
> can
> > advise me what Cisco equipment could do this? (It should be 
> available 
> > on eBay or any type of second-hand market)
> >
> > Also, although this would be slightly off-topic, any other 
> suggestion 
> > of vendor would be OK too.
> >
> > Any help is appreciated
> >
> > Vincent
> >
> > _______________________________________________
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> >
> 
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