ROUTING TABLES

SERIOUS BUSINESS

6/13/2007 12:40:27 PM

I don't know what that was but editing out because it freezes my browser trying to load and then fails


[Edited on June 13, 2007 at 2:14 PM. Reason : mod edit]

6/13/2007 12:44:14 PM

Quote :

" what in the immortal fuck are you doing up that early in the morning?"

I've got too many things distracting me in the evenings to get any good studying done... i.e. a pregnant wife, guitars, 2 dogs, porn, and places to sleep, so I've been getting up around 4a.m. and driving in since I started this. Kinda sucks, but getting used to it.

Quote :

"Out of curiosity, does a CCIE mean a significant pay raise for you? "

In all honesty, probably not. I'll definitely get a sizable bonus when I pass it, but I doubt that any raise will come immediately. It's one of the things required to get to the next pay grade level, but doesn't necessarily guarantee it. I can probably get paid better with a CCIE outside of cisco than within cisco. When my wife graduates from med school next year, she may get a residency out of state, and having that purple dot will all but guarantee a high paying job.

6/13/2007 2:23:39 PM

you R&S ppl are nuts, give me my san anyday (that being said Fibre channel switched fabric and fibre channel: a comprehensive introduction are not really fun reads).



And good luck getting your purple dot

[Edited on June 13, 2007 at 3:06 PM. Reason : w]

6/13/2007 3:05:48 PM

purple dots, not feathers

6/13/2007 4:48:32 PM

Quote :

"I can probably get paid better with a CCIE outside of cisco than within cisco"

I'm not going to say anything, but.... yeah.

*WINK*

6/13/2007 8:13:50 PM

Ok, BGP is just way the fuck over my head.


I need to find a BGP for fucking morons book.

6/15/2007 8:11:30 AM

yeah, pretty confusing ... just try not to think of it in terms of how the other RPs work, focus on the bgp rules, and remember that a routing table and a bgp table are totally separate, and you will be ok.

6/15/2007 8:57:19 AM

bgp case studies on cisco.com is what I read first (maybe you already read it).. Its short and a good overview.. Then I read the more indepth info out of various books.. I felt a definite need to get good at BGP and Qos when I started here last year at VzB.. I feel weak in EIGRP or ospf now..

http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a00800c95bb.shtml

6/15/2007 9:32:14 AM

how hard is it to get the ccna?

6/15/2007 12:10:09 PM

if you understand very basic networking, can navigate IOS, and know how to subnet, then it's extremely easy.

if you're Amsterdam718 then it's impossible. Even if you cheat.

6/15/2007 12:13:19 PM

I'm in csc right now and was just trying to figure out if these certifications would be useful to me down the road if I went ahead and got them or if i should focus on learning more programming languages during my senior year.

6/15/2007 12:28:52 PM

Probably not worthwhile for you if software engineering is your area of focus. It certainly can't hurt, but might be a waste of time and money.

6/15/2007 12:44:22 PM

If you are looking for an internship or coop, certs can be very helpful because they show initiative and forethought, whereas most people don't get them until they are grads and desperate for a job.

6/16/2007 8:51:17 AM

IT != software engineering != programming

6/16/2007 10:12:50 AM

^ never said that it did but there are some things that do cross over such as the network class seems to teach some of these topics.

6/18/2007 2:29:37 AM

Software developers benefit greatly here at cisco when they have some understanding of how Cisco IOS works, therefore, if you are interested in one of those jobs, having the certs will be helpful and set you apart from other CSC grads applying for the job.

6/18/2007 9:04:34 AM

i might start doing some studying on that when i finish my current project thanks for the help guys

6/18/2007 12:22:28 PM

ok, time to take a stab at multicast routing.

chances are, though, that it will stab me.

6/28/2007 4:36:40 AM

bttt...just curious how its going

[Edited on July 28, 2007 at 6:10 PM. Reason : woah...one month to the day]

7/28/2007 6:09:52 PM

this looks promising...
http://www.gns3.net/index.php?option=com_content&view=article&id=7&Itemid=13

7/28/2007 11:15:31 PM

Sweet ... easily downloadable, installable package for router sim ... looks very promising indeed.

The cisco networking academy also has something called "packet tracer" I think, which is a pretty good simulation tool that they just came out with for the academy students. My dad teaches at one, so he showed me the beta version last week. Its a little more useful for first time students/learners, because it actual shows you the physical difference between different router platforms, and makes you admin them just like you would if you were setting up your own network... Even down to making you power down the box before you can install a different wic or NM... Which I thought was a good thing for those students.

I will download this and use it this week for my studys while on vacation at the beach...

7/29/2007 8:12:18 AM

i legitimately bumped this thread cause i was curious how it was going...i'm guessing the lack of response means hes not trying to get that purple dot or whatever anymore

7/31/2007 2:58:34 PM

He hasn't posted since 7/22.

My guess is that he just might have a life outside of TWW. I realize that may be a difficult thing for you to comprehend, Josh, but most people here don't waste their lives away on this site.

7/31/2007 5:43:24 PM

oh my bad, u know how i bump my whos online thread in chit chat all the time?

well think about how many times i tell myself not to bump it cause i've already bumped it too much

i've seen him online like 4 times in the 4:30-5:30 range in the past week or so...maybe 10 days...idk

8/3/2007 3:56:11 PM

it's going...

been studying my ass off, not much TWW time.

[Edited on August 4, 2007 at 8:39 AM. Reason : ^ btw, that's really fucking creepy. ]

8/4/2007 8:25:29 AM

i'm glad to hear you stuck with it, i like hearing about the hard ass shit u have to do, but its not that creepy

i have a 4 page thread titled "who's online" and i'm on a lot at 4 to 5am...your sn starts with a b(top of the list at 4-5am)

8/4/2007 4:35:43 PM

10/10 ...

8/5/2007 4:13:40 PM

gg, b.

get that CCIE.

i want it, but don't have time to study for it.

8/5/2007 4:38:30 PM

A few notes on redistribution of connected routes:

The issue is that when you do redistribution from protocol x into protocol y, sometimes the connected routes associated with protocol x don't redistribute into protocol y. Another guy i've been studying with figured this out earlier this week, but I ran into the problem again on another lab and it's a bit of a gotcha so I wanted to put it in writing.

In that lab You're told to advertise 172.16.50.0/24 on R3 as an OSPF external type-1 route. So, I did redistribute connected under the ospf process with a route-map allowing only that route. R3 is an OSPF ASBR and you have to mutually redistribute between RIP and OSPF (see the diagram on page 1 of this thread). When I redistribute RIP into OSPF I find that the connected routes 172.16.103.0/24 and 172.16.31.0/24 (both of which are under the rip process on R3) don't show up on any of the other OSPF neighbors to R3.

When you redistribute protocol x into protocol y, the connected networks on which protocol x is running will redistribute, but they redistribute as connected networks. This is what got me. I always operated under the assumption that whey would redistribute the same as any other network from protocol x. So, if you have configured 'redistribute connected' under that protocol y and you are filtering the connected networks that are redistributed, you have to explicitly permit any connected networks belonging to protocol x if you want them to redistribute when x is redistributed into y.

It's silly now that I'm past it, but I was banging my head on the wall for a while over this.

8/22/2007 7:33:48 AM

um, grapefruit juice and some all bran?

8/22/2007 9:00:49 AM

Reading this thread makes me think bobbydigital has a slight idea what he's doing

[Edited on August 31, 2007 at 5:31 PM. Reason : k]

8/31/2007 5:31:13 PM

Quote :

"how hard is it to get the ccna?"

Very easy. Like taking candy from a baby, easy.

8/31/2007 8:29:39 PM

^I wouldn't go that far. It's gotten much tougher in the recent revisions, but still pretty reasonable with minimal studying.

I took the jncia not too long ago. In comparison to the ccna- the breadth of material is pretty cool. rip, ospf, isis, bgp, multicast, mpls, security, etc are all covered in the exam.

Time to get back to studying for the jncis/p.

8/31/2007 9:33:48 PM

I touched on this a little bit on page 1, but this is basically a redistribution scheme using route tags that's pretty easy to memorize and apply to just about any routing topology where redistribution between multiple IGPs at multiple redistribution points is necessary.

This scheme avoids routing loops and once you understand it, it's pretty mindless.

The basic principle is that you assign route tag values of 1, 10, and 100 to RIP, OSPF, and EIGRP respectively. As you redistribute on protocol into another, you'll deny anything out that has a tag associated with the destination IGP and set a tag such that the source protocol is identified in the TAG. A tag of 1 means that the routes originated in RIP, so EIGRP and OSPF can accept them, but you don't want to send them back into RIP again. A tag of 101 means that RIP and OSPF know about the routes already, so we can redistribute them into EIGRP only, and deny the routes at any RIP or OSPF boundaries.

The number of route maps in the template is determined by n(n-1) where n is the number of IGPs we're dealing with. For the CCIE, we only deal with RIP, OSPF, and EIGRP, so we'll need 6 route maps.


route-map EIGRP-->RIP deny 10
match tag 1
! If the tag is already set to 1, then these routes are already known by RIP
route-map EIGRP-->RIP deny 20
match tag 11
! If the tag is 11, then they're already known by RIP and EIGRP
route-map EIGRP-->RIP deny 30
match tag 101
! If the tag is 101, they're already known by RIP and OSPF
route-map EIGRP-->RIP permit 40
match tag 100
set tag 110
! If the tag is 100, then the routes are known by OSPF, so send them to RIP and change the tag so that other
! IGPs know that these routes are known by EIGRP as well
route-map EIGRP-->RIP permit 50
set tag 10
! Else, the routes are untagged, and originated in EIGRP, so send them to RIP and tag them so they don't get
! sent back to EIGRP

!
route-map RIP-->EIGRP deny 10
match tag 10
route-map RIP-->EIGRP deny 20
match tag 110
route-map RIP-->EIGRP deny 30
match tag 11
route-map RIP-->EIGRP permit 40
match tag 100
set tag 101
route-map RIP-->EIGRP permit 50
set tag 1

!
!
route-map EIGRP-->OSPF deny 10
match tag 100
route-map EIGRP-->OSPF deny 20
match tag 101
route-map EIGRP-->OSPF deny 30
match tag 110
route-map EIGRP-->OSPF permit 40
match tag 1
set tag 11
route-map EIGRP-->OSPF permit 50
set tag 10

!
!
route-map OSPF-->EIGRP deny 10
match tag 10
route-map OSPF-->EIGRP deny 20
match tag 11
route-map OSPF-->EIGRP deny 30
match tag 110
route-map OSPF-->EIGRP permit 40
match tag 1
set tag 101
route-map OSPF-->EIGRP permit 50
set tag 100

!
!
route-map OSPF-->RIP deny 10
match tag 1
route-map OSPF-->RIP deny 20
match tag 11
route-map OSPF-->RIP deny 30
match tag 101
route-map OSPF-->RIP permit 40
match tag 10
set tag 110
route-map OSPF-->RIP permit 50
set tag 100

!
!
route-map RIP-->OSPF deny 10
match tag 100
route-map RIP-->OSPF deny 20
match tag 101
route-map RIP-->OSPF deny 30
match tag 110
route-map RIP-->OSPF permit 40
match tag 10
set tag 11
route-map RIP-->OSPF permit 50
set tag 1

9/1/2007 10:27:15 AM

w00t

just got a rack of real equipment to do practice labs on. this will beat the shit out of the emulator's i've been using.

9/15/2007 10:32:33 AM

whatdya get? some 6509s with sup720s?

9/15/2007 11:56:59 PM

nah, 8 2811s, a 3640 running as a frame switch, and 4 3560s -- which is the same setup as the real deal.

9/16/2007 7:49:00 AM

who did you get yours from ?? Its not the ones from our labs is it?

9/16/2007 12:16:28 PM

yep, we had to go over some people's heads to get them, but we got 'em finally.

9/16/2007 12:55:05 PM

IOU 4 life.






















Not really though

9/16/2007 4:10:32 PM

I'm guessing the 3640 is static?

If I went CCIE it'd definitely be for -V...


By the way, would TAC hire a guy with CCNP/CCVP and some years of implementation into a Voice TAC seat? Back in the day when I co-opped there (in 2002) no one wanted to join the then-AVVID team. The broadband guys all told me they'd quit if they were told to move. Do you guys still have a pretty much open req for voice engineers in TAC???

9/16/2007 8:57:44 PM

^^^ sweet ... that means I should have my pod reserved, or ready for me to use when I get back saturday ... I had to rack and wire up all 10 of those damn pods... Glad to hear they finally got the last few pieces of equipment in.

Are they on the actual lab network, accessible from home, or do you have to go to the lab to use them?

9/17/2007 1:42:53 PM

ha, more drama, i'll pm you about it.

fuck CALO.

9/17/2007 3:40:45 PM

Glad I'm not on it anymore, wouldn't wanna face the wrath of BD!

9/17/2007 7:05:28 PM

less than two weeks to go.

PTO until then.

going to bed now.

9/25/2007 12:37:26 AM

so in your honest opinion do you think you will be able to accomplish this?

9/25/2007 1:10:25 AM

T-minus 2 days ...
Dont really think it will go that well, but I just want to take it at least once to see what its like.

Next time ill be more serious about the studying...

9/25/2007 8:17:46 AM

i think bobby digital will do it

he seems like the kind of person that studies his ass off and probably passes these hard type of things

9/25/2007 8:25:56 PM

Quote :

"BGP routing --- I suck ass Frame Relay/WAN -- meh "

I'm an EXPERT on BGP, EIGRP, frame relay, ATM and MPLS . . . if you need anything just pm me. btw: stop being a dickbag - we could possible learn from each other. you could give me pointers on passing test.

i'm sort of okay with Voice too . . .

9/25/2007 8:32:32 PM