RE: /24s run amuck
If you have had any experiences, good or bad, with Imagestream, please contact me off-list (or here). I would appreciate any or all of your collective input. Thank you, Shawn -- Shawn Solomon Senior Network Engineer / Systems Design IHETS / ITN 317.263.8875 [EMAIL PROTECTED] fx317.263.8831 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Wednesday, January 14, 2004 4:20 PM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: Re: /24s run amuck On Wed, 14 Jan 2004 [EMAIL PROTECTED] wrote: I stand corrected. The following page comparing Cisco and Imagestream is quite interesting. http://www.imagestream.com/Cisco_Comparison.html How many of you would buy an Imagestream box to evaluate for your next network buildout? I've been managing a couple of these for a customer for a couple of years. They work. The main problem I'd have with trying to use them on our network is a lack of certain features I'm either used to or totally dependent on in our ciscos. i.e. MPLSVPN (lack of it) would be a show stopper for us. The gated-public they come with lacks features...AFAIK there is no support for communities, prepending, etc. Their current software image does include zebra now, but last I looked it was not officially supported. For a relatively simple end-user BGP customer, it works fine. And the nice thing is it's PC-type hardware so if you need more RAM, just throw in another dimm. No worries about the global routing table growing and having to buy a bigger router because your year or two old one no longer supports enough memory to hold full routes. I suspect the CPUs are upgradable as well...but I've never actually touched the hardware...I've always worked on it remotely. OS-wise, it's a minimal Linux distribution with a menu interface (or you can drop to a shell) and there is a little space on the flash to add additional software if there something you want that they don't supply. -- Jon Lewis [EMAIL PROTECTED]| I route Senior Network Engineer | therefore you are Atlantic Net| _ http://www.lewis.org/~jlewis/pgp for PGP public key_
RE: Router with 2 (or more) interfaces in same network
I would guess that they actually want 1 of the following: Redundancy of some sort. Increased bandwidth to the router. -- Shawn Solomon Senior Network Engineer / Systems Design IHETS / ITN 317.263.8875 [EMAIL PROTECTED] fx317.263.8831 -Original Message- From: Sugar, Sylvia [mailto:[EMAIL PROTECTED] Sent: Tuesday, November 11, 2003 3:36 AM To: [EMAIL PROTECTED] Subject: Router with 2 (or more) interfaces in same network Hi, I am curious to know if its possible to have a router with its two interfaces, say configured as, 1.1.1.1/16 and 1.1.1.2/16. Theoretically, i see nothing which can stop a router from doing this. But practically, is it of any use? And if used, then, when and why will somebody want to use such a kind of configuration? Would appreciate if somebody could enlighten me on this. Regards, Rasputin P.S. I have a customer who insists he wants to do this, without providing any explanations! Want to chat instantly with your online friends? Get the FREE Yahoo! Messenger http://mail.messenger.yahoo.co.uk
FW: Cidera Service Shutting Down
For those of you who didn't get the memo :) It is happening, Again. -- Shawn Solomon Senior Network Engineer / Systems Design IHETS / ITN 317.263.8875 [EMAIL PROTECTED] fx317.263.8831 -Original Message- From: Julie Peoples [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 30, 2003 9:39 AM To: [EMAIL PROTECTED] Subject: Cidera Service Shutting Down Good morning, Sadly, VOIPnet, d.b.a. Cidera, has been instructed to cease transmission on the satellite transponder at 11:00 a.m. EDT, today, September 30, 2003. We regret that we could not give our customers any more notice than we were given. We wish to thank all of our loyal customers for staying the course with us over all this time. We wish them the best of luck in the future. Sorrowfully, Julie we live with regret, things fall apart. The center cannot holdfarewell
RE: Worst design decisions?
The 12016 does have handles on the sides, but the documentation states not to use them for lifting purposes. Yeah, I laughed too, just before realizing that bear-hugging a 16 into position takes a bit of motivation. It is definitely one big hunk of iron (300+lbs on the shipping invoice), but I just couldn't understand why in the @%$$ useful handles weren't provided. On a side note, the scissor-jacks that came with them could lift a house. Heh. http://www.cisco.com/en/US/products/hw/routers/ps167/prod_installation_g uide09186a0080188f38.html Warning Do not attempt to lift the chassis with the handles on the back and sides of the chassis. These handles are not designed to support the weight of the chassis, and should be used only to steady and guide the chassis while it is being inserted into or removed from an equipment rack. To reduce the risk of damage to the chassis and serious bodily injury, do not use these handles to lift or support the chassis. -Original Message- From: Matt [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 17, 2003 5:43 PM To: [EMAIL PROTECTED] Subject: Worst design decisions? Hello all, Was doing some upgrades on a UBR7246 (to a VXR), and I got to thinking about short sighted design considerations. I was curious if any of you had some pet peeves from a design perspective to rant about. I'll start with a couple. 1) Why did Cisco design the I/O controller on the 7246 with screws in the corner, which are very difficult to get at? And worse than that, why did they not include a cheap handle on the blank in this slot? 2) Why did Cisco not include side handles on the 12000 chassis? It's a heavy chassis, and I can imagine how many techs have thrown out their back moving that chassis around. I've got a couple others in my head from 3Com and a couple of others, but I thought I'd get the ball rolling. So, what do you think?
RE: VoIP QOS best practices
If you are in an environment where the uplink is already saturated, or nearly so, QOS is necessary. But QOS only discards packets in times of contention. So, if you don't have contention, you don't need it. IF you have 300 people and 4meg of data all fighting for that t1, it makes a world of difference. -Original Message- From: Bill Woodcock [mailto:[EMAIL PROTECTED]] Sent: Monday, February 10, 2003 1:28 PM To: Charles Youse Cc: [EMAIL PROTECTED] Subject: RE: VoIP QOS best practices But I could conceivably have 10+ voice channels over a T-1, I still don't quite understand how, without prioritizing voice traffic, the quality won't degrade... Well, of course it all depends how much other traffic you're trying to get through simultaneously. Your T1 will carry ~170 simultaneous voice streams with no conflict, but you have to realize that they'll stomp on your simultaneous TCP data traffic. But you don't need to protect the _voice_... Look, just do it, and you'll see that there aren't any problems in this area. -Bill
RE: sprint passes uu?
I'm curious to know how many of those UU customers are just waiting for their contracts to expire before giving them the big F.U. -Original Message- From: Richard A Steenbergen [mailto:[EMAIL PROTECTED]] Sent: Tuesday, October 15, 2002 7:09 PM To: [EMAIL PROTECTED] Cc: Brian; [EMAIL PROTECTED] Subject: Re: sprint passes uu? On Tue, Oct 15, 2002 at 07:25:15PM -0400, [EMAIL PROTECTED] wrote: It's hard to know how large a percentage though without knowing how many Sprint customers are also UU customers. i.e. The combination of Sprint and UU customer routes could still be just 47637 prefixes, though I'm sure it's somewhere between that and 47637+45410. It's certainly not 47637+45410, which would falsely suggest that together Sprint and UU have roughly 80% of the internet as customers. Well, just by checking the big providers off the top of my head, I come up with: ASN Routes Common Name -- --- 1239 47711 Sprint 701 45429 UU 3561 23205 CW 7018 23154 ATT 120231 BBN/Genuity 209 17082 Qwest 3356 12587 Level 3 3549 12175 GBLX 6453 10403 Teleglobe 2914 8791 Verio 6461 8089 MFN/AboveNet 4200 7506 Aleron/Agis 1299 6773 Telia 5511 4261 OpenTransit 4637 4066 Reach 16631 2067 Cogent 2828 1842 XO 4006 1727 NetRail/Cogent - 256984 Which of course ignores many dozens of 1-2k route providers. Now, of course number of routes has absolutily nothing to do with amount of traffic (ex: AOL, which anounces 400 some routes (and a lot of those are RoadRunner) but is one of if not the single the most important sink of traffic in the world), but it's interesting nevertheless. -- Richard A Steenbergen [EMAIL PROTECTED] http://www.e-gerbil.net/ras PGP Key ID: 0x138EA177 (67 29 D7 BC E8 18 3E DA B2 46 B3 D8 14 36 FE B6)
RE: password stores?
One common solution is a hash based on the cpe site name or some other unique key provided by the cpe information (address, ph #, etc). Changing the hash occasionally provides new passwords, and it is all easily scripted.. -Original Message- From: Daniska Tomas [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 23, 2002 2:35 AM To: [EMAIL PROTECTED] Subject: password stores? hi, i'm wondering how large isps offering managed cpe services manage their password databases. let's say radius/tacacs is used for normal cpe user aaa, but there is some 'backup' local user account created on the cpe for situations when the radius server is unreachable. for security reasons, this backup account (as well as snmp communities, radius key etc.) is unique per cpe to avoid frauds caused by end-users (even if one does password recovery on the cpe, they still don't have the password for other cpe's). if there are hundreds or thousands of these cpe's that could mean storing of tens thousands of password. are there any crypto-based products available or do the people use their own stuff? thanks -- Tomas Daniska systems engineer Tronet Computer Networks Plynarenska 5, 829 75 Bratislava, Slovakia tel: +421 2 58224111, fax: +421 2 58224199 A transistor protected by a fast-acting fuse will protect the fuse by blowing first.
Re: list problems?
no way... The option where you come out into life 35k in the hole, no experience, and four years behind your collegues is obviously better. And its hard to put a value on.. that bitterness you learned from spending the best years of your life with a bunch of rich, drunken dumbasses. The tolerence you gained from all those times your learning was decelerated, just to allow for johnny football star to meet status quo. The anger from seeing Johnny pull his head of his jock just long enough to see daddy hand him a 150k VP position. As mastercard sais.. priceless. And no, I'm not bitter.. -- Shawn Solomon Senior State Networks Engineer Indiana Telecommunications Network IHETS INDnet 317.263.8875 www.ind.netfx: 317.263.8831 On 22 May 2002, Paul Vixie wrote: [EMAIL PROTECTED] (Leo Bicknell) writes: If you ever want to become a team leader, or a manger, or run a theoretical group you are going to need the math and English backgrounds that college provides. ... So what you're saying is, if I hadn't dropped out of high school during my 17th trip around Sol, I wouldn't've gotten stuck in this dead end job? Probably I wouldn't have that honorary MSCS degree either. Wouldn't've wrote all that code, nor those RFC's, nor started those various companies. Wouldn't've found my various mentors nor been a mentor to any of the folks who count me as having been one? Is that how a college degree would have improved my career by age 39? Sounds like a bad deal to me. -- Paul Vixie [EMAIL PROTECTED] President, PAIX.Net Inc.
