Comments for RedWarriorNet http://www.redwarriornet.com Networking, a bit at a time... Thu, 09 Sep 2010 01:04:27 +0000 http://wordpress.org/?v=2.7.1 hourly 1 Comment on BGP Burnout!!!! by Rob http://www.redwarriornet.com/?p=159&cpage=1#comment-22 Rob Mon, 29 Jun 2009 15:50:27 +0000 http://www.redwarriornet.com/?p=159#comment-22 We all need a break once in a while ;) BGP can get very tedious, as it sometimes seems like it is never ending. There is always one more option or command or rule. Just take a step back, practice the fundamentals, then move deeper in. Good luck on Wednesday! My one tip is to walk when drinking water (if you stop for some). Drinking from a plastic cup while running is a tough skill lol We all need a break once in a while ;) BGP can get very tedious, as it sometimes seems like it is never ending. There is always one more option or command or rule. Just take a step back, practice the fundamentals, then move deeper in.

Good luck on Wednesday! My one tip is to walk when drinking water (if you stop for some). Drinking from a plastic cup while running is a tough skill lol

]]> Comment on The Ants Go Marching Into BGP! by Rob http://www.redwarriornet.com/?p=155&cpage=1#comment-21 Rob Tue, 23 Jun 2009 22:05:42 +0000 http://www.redwarriornet.com/?p=155#comment-21 BSCI covers a pretty good deal on BGP. I find there are a lot of "gotchas" in BGP, and what I mean is there are a lot of things you just have to watch out for. Things like when to use route reflection, considerations with confederation, and all the little 'add on' commands like next-hop-self, ebgp-multihop, and when to use them all. The books will tell you WHY you use them, and labs will help you know when/where to use them. You just have to remind your self that BGP is very un-dynamic. Almost everything is specifically configured. Out of all the protocols, I say I end up troubleshooting my mistakes in BGP more than anything else (other than weird redistribution scenarios). Its so easy to forget a command. BSCI covers a pretty good deal on BGP. I find there are a lot of “gotchas” in BGP, and what I mean is there are a lot of things you just have to watch out for. Things like when to use route reflection, considerations with confederation, and all the little ‘add on’ commands like next-hop-self, ebgp-multihop, and when to use them all. The books will tell you WHY you use them, and labs will help you know when/where to use them. You just have to remind your self that BGP is very un-dynamic. Almost everything is specifically configured.

Out of all the protocols, I say I end up troubleshooting my mistakes in BGP more than anything else (other than weird redistribution scenarios). Its so easy to forget a command.

]]> Comment on We are Living in a Multicast World and I am a Multicast Girl by redwarrior77 http://www.redwarriornet.com/?p=152&cpage=1#comment-20 redwarrior77 Mon, 22 Jun 2009 19:34:41 +0000 http://www.redwarriornet.com/?p=152#comment-20 I'm thinking the hookah bar might be fun for labs (short ones, definitely no longer than 1 hour), and for watching CBT Nuggets or Trainsignal. I think anything else and it would be too dark or too distracting. :) I'm planning on getting a hookah, some hummus, and a beer and watching trainsignals and playing with GNS3. :D I'll have to see if I can sneak into one of the university libraries here...there are a few smaller universities here and I might blend in...besides unless I'm checking something out, I doubt they'll care that I'm not a student. I’m thinking the hookah bar might be fun for labs (short ones, definitely no longer than 1 hour), and for watching CBT Nuggets or Trainsignal. I think anything else and it would be too dark or too distracting. :) I’m planning on getting a hookah, some hummus, and a beer and watching trainsignals and playing with GNS3. :D

I’ll have to see if I can sneak into one of the university libraries here…there are a few smaller universities here and I might blend in…besides unless I’m checking something out, I doubt they’ll care that I’m not a student.

]]> Comment on We are Living in a Multicast World and I am a Multicast Girl by Rob http://www.redwarriornet.com/?p=152&cpage=1#comment-19 Rob Sun, 21 Jun 2009 16:56:13 +0000 http://www.redwarriornet.com/?p=152#comment-19 I never liked starbucks either, they are always way too busy and noisy I can't believe anyone gets anything done there. I never thought of a hookah bar, that would actually be a pretty relaxed place to chill out! Might be a little dark for books though. My favourite spot was a university library. The reason I think its better than a public is that its usually bigger, theres always someones wifi to steal, and has lots of variety in study areas, with some being very private and cozy. They also are sometimes open much later. I never liked starbucks either, they are always way too busy and noisy I can’t believe anyone gets anything done there. I never thought of a hookah bar, that would actually be a pretty relaxed place to chill out! Might be a little dark for books though.

My favourite spot was a university library. The reason I think its better than a public is that its usually bigger, theres always someones wifi to steal, and has lots of variety in study areas, with some being very private and cozy. They also are sometimes open much later.

]]> Comment on The Lab of the Real World by Rob http://www.redwarriornet.com/?p=147&cpage=1#comment-18 Rob Fri, 19 Jun 2009 21:53:23 +0000 http://www.redwarriornet.com/?p=147#comment-18 Yup, that is essentially what PIM does, and why I usually just throw it everywhere. The reason I say it probably isn't best to do that in the real world, as large networks would be a hassle if you only need Mcast in certain parts of it. Also, its probably a security risk (like everything seems to be lol) to have it where you won't need it/want it. Yup, that is essentially what PIM does, and why I usually just throw it everywhere. The reason I say it probably isn’t best to do that in the real world, as large networks would be a hassle if you only need Mcast in certain parts of it. Also, its probably a security risk (like everything seems to be lol) to have it where you won’t need it/want it.

]]> Comment on The Lab of the Real World by redwarrior77 http://www.redwarriornet.com/?p=147&cpage=1#comment-17 redwarrior77 Fri, 19 Jun 2009 18:08:04 +0000 http://www.redwarriornet.com/?p=147#comment-17 Hmmm...if multicast always works the way it should, shouldn't it prune traffic only to those links that have subscribers to the group downstream? This would seem to mean that it would be fine to put the PIM mode on any interface unless you specifically don't want multicast traffic going down it, even if it is a path to a subscriber... There you go again, Rob...making me think! ;) Hmmm…if multicast always works the way it should, shouldn’t it prune traffic only to those links that have subscribers to the group downstream? This would seem to mean that it would be fine to put the PIM mode on any interface unless you specifically don’t want multicast traffic going down it, even if it is a path to a subscriber…

There you go again, Rob…making me think! ;)

]]> Comment on Week 2 of BSCI Studies…OSPF is a LOT to Digest! by Rob http://www.redwarriornet.com/?p=124&cpage=1#comment-16 Rob Fri, 19 Jun 2009 05:20:52 +0000 http://www.redwarriornet.com/?p=124#comment-16 AD are something you need to know for written tests, and thats about it. In lab or even real situations, as long as you understand what an AD is, and take it into consideration when working with multiple routing protocols over the same domain (which honestly isn't that often), you can get by fine. Even if you don't remember the AD of say EIGRP, but you want OSPF routes instead, just let the EIGRP install, take a look a the AD of the route, and configure OSPF accordingly. The convergence speed is fast enough to not really waste much time. That said, the reason something like EX-BGP is a lower AD (which you would think OSPF or something would be trusted more right?), is because EX-BGP is something that was 'forced' in manually. Meaning if a route is learning it, it probably isn't automatic like OSPF, and was specifically designed. Why IGRP > OSPF I have no idea lol AD are something you need to know for written tests, and thats about it. In lab or even real situations, as long as you understand what an AD is, and take it into consideration when working with multiple routing protocols over the same domain (which honestly isn’t that often), you can get by fine. Even if you don’t remember the AD of say EIGRP, but you want OSPF routes instead, just let the EIGRP install, take a look a the AD of the route, and configure OSPF accordingly. The convergence speed is fast enough to not really waste much time.

That said, the reason something like EX-BGP is a lower AD (which you would think OSPF or something would be trusted more right?), is because EX-BGP is something that was ‘forced’ in manually. Meaning if a route is learning it, it probably isn’t automatic like OSPF, and was specifically designed. Why IGRP > OSPF I have no idea lol

]]> Comment on The Lab of the Real World by Rob http://www.redwarriornet.com/?p=147&cpage=1#comment-15 Rob Fri, 19 Jun 2009 05:12:29 +0000 http://www.redwarriornet.com/?p=147#comment-15 oooo Yummy Mcast! In labs I usually make a habit of just throwing the PIM mode on well, everything lol. Usually you can just get away with it unless it states otherwise. Probably not best in real world, but those are two different things. A lo interface is pretty common for an RP, for a few reasons. I personally think its good practice for the entire network to reach loopbacks anyway (for management purposes), so its something that you can forget to do if thats not already present on a network. oooo Yummy Mcast!

In labs I usually make a habit of just throwing the PIM mode on well, everything lol. Usually you can just get away with it unless it states otherwise. Probably not best in real world, but those are two different things.

A lo interface is pretty common for an RP, for a few reasons. I personally think its good practice for the entire network to reach loopbacks anyway (for management purposes), so its something that you can forget to do if thats not already present on a network.

]]> Comment on Where Have I been? by redwarrior77 http://www.redwarriornet.com/?p=48&cpage=1#comment-8 redwarrior77 Mon, 16 Mar 2009 21:38:23 +0000 http://redwarrior77.wordpress.com/?p=48#comment-8 Thanks, Aragoen...I added both a search and a calendar, so hopefully that will help. I've also started adding separate pages for the good links I come across in my studies both to give myself a central repository and hopefully share them with others. Good luck on your BSCI! Thanks, Aragoen…I added both a search and a calendar, so hopefully that will help. I’ve also started adding separate pages for the good links I come across in my studies both to give myself a central repository and hopefully share them with others. Good luck on your BSCI!

]]> Comment on Back to BCMSN! by   Back to BCMSN! by Cisco Information Technology http://www.redwarriornet.com/?p=50&cpage=1#comment-9   Back to BCMSN! by Cisco Information Technology Sun, 15 Mar 2009 02:23:31 +0000 http://redwarrior77.wordpress.com/?p=50#comment-9 [...] Read the original:  Back to BCMSN! [...] [...] Read the original:  Back to BCMSN! [...]

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