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RE: Bandwidth Control Question
by Fisher, Shawn 19 Dec '03

19 Dec '03

Curiouos, you have success buying on Ebay? No one send you a box of rocks? What about Cisco SPAR for TAC support? -----Original Message----- From: Randy Bush [mailto:randy@psg.com] Sent: Friday, December 19, 2003 1:24 PM To: Stephen Sprunk Cc: North American Noise and Off-topic Gripes Subject: Re: Bandwidth Control Question > PA-2FE-FX $5000/card $25.00/Mbit $2,000 on ebay randy

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RE: Bandwidth Control Question
by Michel Py 19 Dec '03

19 Dec '03

> Fisher, Shawn > Curiouos, you have success buying on Ebay? > No one send you a box of rocks? That's the question the UPS driver once asked when delivering a 7507; the box did contain a router though and no rocks. > What about Cisco SPAR for TAC support? For some, it has come to a point where storing spares on-site is cheaper. I just bought a VIP2-40 for 50 bucks for example. Seen some GSRs for as low as $5k. This is hurting Cisco and I heard some talking about suppressing software-only support but so far so good. Michel.

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Increased activity on UDP/1434?
by Bulger, Tim 19 Dec '03

19 Dec '03

Is anyone seeing increased activity on UDP/1434? We are seeing boxes which have been patched for SQL slammer spewing lots of traffic to randomized destination addresses for about 2 hours. Intense googling has revealed nothing new since SQL slammer. Any information would be appreciated. :) Thanks, Tim

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Re: Bandwidth Control Question
by sthaug＠nethelp.no 19 Dec '03

19 Dec '03

> The quite annoying thing about that is switching a PC-MC-2T3+ interface > from channelized (the default) to unchannelized causes a cbus complex > restart, which interrupts traffic through the router for a period of > time (the time varies based on the number of interfaces in the router). Even with "service single-slot-reload-enable"? Steinar Haug, Nethelp consulting, sthaug(a)nethelp.no

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RE: Bandwidth Control Question
by Brennan_Murphy＠NAI.com 19 Dec '03

19 Dec '03

Or wireless. -----Original Message----- From: owner-nanog(a)merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of Roy Sent: Friday, December 19, 2003 11:30 AM To: Claydon, Tom; nanog(a)merit.edu Subject: RE: Bandwidth Control Question Why waste a T3 port. Run ethernet if they are that close. Don't overlook the benefit of using the old thin-net for 200m. -----Original Message----- From: owner-nanog(a)merit.edu [mailto:owner-nanog@merit.edu]On Behalf Of Claydon, Tom Sent: Friday, December 19, 2003 7:26 AM To: 'nanog(a)merit.edu' Subject: Bandwidth Control Question Hello, A customer of ours in the next building would like 6M of Internet bandwidth from us, so we would wire a DS3 between the two buildings for connectivity. The question is: how to we control the amount of bandwidth that we give them? Could we use rate limiting to contain the bandwdith to 6M, our would we need to get external IDSU's to do that? Note: we have a Cisco 7206VXR router on our end. The customer has a Cisco 7513. Thanks, = TC -- Tom Claydon, IT/ATM Network Engineer Dobson Telephone Company phone: (405) 391-8201 cell: (405) 834-0341

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RE: Bandwidth Control Question
by Claydon, Tom 19 Dec '03

19 Dec '03

Thanks to everyone who responded. Looks like I'm going to have to invest in a PA-MC-2T3+ card for the 7206...I have at least four PA-MC-T3 cards, and they're not going to work the way I want them to (unless I rate-limit them). Thanks, = TC -- Tom Claydon, IT/ATM Network Engineer Dobson Telephone Company phone: (405) 391-8201 cell: (405) 834-0341

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Bandwidth Control Question
by Claydon, Tom 19 Dec '03

19 Dec '03

Hello, A customer of ours in the next building would like 6M of Internet bandwidth from us, so we would wire a DS3 between the two buildings for connectivity. The question is: how to we control the amount of bandwidth that we give them? Could we use rate limiting to contain the bandwdith to 6M, our would we need to get external IDSU's to do that? Note: we have a Cisco 7206VXR router on our end. The customer has a Cisco 7513. Thanks, = TC -- Tom Claydon, IT/ATM Network Engineer Dobson Telephone Company phone: (405) 391-8201 cell: (405) 834-0341

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RE: Bandwidth Control Question
by Claydon, Tom 19 Dec '03

19 Dec '03

Hi Mark, Yes, it's a point-to-point link. = TC -----Original Message----- From: Mark E. Mallett [mailto:mem@mv.mv.com] Sent: Friday, December 19, 2003 10:36 AM To: Claydon, Tom Cc: 'nanog(a)merit.edu' Subject: Re: Bandwidth Control Question On Fri, Dec 19, 2003 at 10:24:36AM -0600, Claydon, Tom wrote: > Thanks to everyone who responded. Looks like I'm going to have to > invest in a PA-MC-2T3+ card for the 7206...I have at least four > PA-MC-T3 cards, and they're not going to work the way I want them to > (unless I rate-limit them). This is for point-to-point DS3, right? I don't think you want -MC- anything, you'd want e.g. PA-2T3+ . (I don't remember the original message though.) mm

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RE: Bandwidth Control Question
by Dan Ellis 19 Dec '03

19 Dec '03

Thanks. I not very familiar with the integrated DSU T3/E3 command set - still used to the good ol HSSI ports. I'll agree, this sounds like a better solution if you are using one of the integrated cards. Yes - you are correct, in my solution both sides should always use a traffic-shape or other shaping QoS command. The rate limit is a final "police" in case the customer does try to send more than you would like them to. Again, agreed, obviously if you can control the port speed (above - DSU bandwidth), that's a better solution. -- Daniel Ellis, CTO, PenTeleData (610)826-9293 "The only way to predict the future is to invent it." --Alan Kay -----Original Message----- From: Michel Py [mailto:michel@arneill-py.sacramento.ca.us] Sent: Friday, December 19, 2003 10:58 AM To: Bryan Heitman; nanog(a)merit.edu Subject: RE: Bandwidth Control Question > Bryan Heitman > Why not simply use configuration option Cisco gives > you to set your DS3 to 6 meg dsu bandwidth X That's what I do, works fine. > Dan, your suggestion will unncessarily tax his equipment. Not only that, but the rate-limiting on the input interface will likely force the customer to do some QOS at their end too; the discrepancy between what the customer's router thinks the bandwidth is and what it really is will cause packet loss. I like the solution of the sending interface to queue the egress traffic at whatever speed is available better. Michel.

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RE: Bandwidth Control Question
by Michel Py 19 Dec '03

19 Dec '03

> Bryan Heitman > Why not simply use configuration option Cisco gives > you to set your DS3 to 6 meg dsu bandwidth X That's what I do, works fine. > Dan, your suggestion will unncessarily tax his equipment. Not only that, but the rate-limiting on the input interface will likely force the customer to do some QOS at their end too; the discrepancy between what the customer's router thinks the bandwidth is and what it really is will cause packet loss. I like the solution of the sending interface to queue the egress traffic at whatever speed is available better. Michel.

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