Hello.

First, in your hardware spec list you have BB routers having only 1 ethernet interface. This confuses me, since BB1 has a serial connection to the FR switch & BB3 has a serial connection to BB1, according to the physical interface connections chart.

Second, why does BB1 have a ton of serial interfaces in the initial config file, when there is only two serial interfaces used.. S0/0 to BB3 and S0/1 to the Frame relay switch.

Why on earth does the cabling list only show one connection from BB1? There are AT LEAST two, and a lot more if you follow the initial config file. What on earth is going on here?! How am I supposed to build a lab around your workbooks if your configuration instructions arent even close to being accurate?!

Why does your equipment list not show BB1 needing a bunch of serial connections?

Your toplogy is extremely frustrating to decipher... This just seems to be one big massive clusterf*ck. Sure, its wonderful for people who rent your racks.. but anyone who wants to build it themselves is utterly screwed.

 

After digging through all the configs, I think I've managed to come up with an idea of what the cabling SHOULD look like:

http://www.pittstate.edu/~cjones/temp/frame_topology.png

Thats assuming using all 3640s with NM-4Ts, so the actual interface names could vary depending on what hardware you use... but as far as I can tell, the physical topology is correct.

I just recorded a quick overview of the R&S hardware here:

https://internetworkexpert.webex.com/internetworkexpert/k2/e.php?AT=RINF&recordingID=57872

I'm just learning WebEx so the recording shows the "recording control window" so I'll redo it soon to fix that.

Brian Dennis, CCIEx5 #2210 (R&S/ISP-Dial/Security/SP/Voice)
bdennis@internetworkexpert.com

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Brian,

Thank you for the video, it helps quite a bit (especially the part about the BB1 to BB3 link). I still have some other questions though.

I'm using nine 3640s, each with one NM-4E and one NM-4T module, with the exception of BB1, which has just two NM-4T modules (since it's the frame relay switch also, and has no ethernet connections).

This configuration means all routers use E0/x for ethernet and S1/x for serial. This requires some slight modification as far as what gets connected to what:

BB1 S0/0 -- R1 S1/0

BB1 S0/1 -- R2 S1/1

BB1 S0/2 -- R3 S1/0

BB1 S0/3 -- R3 S1/1

BB1 S1/0 -- R4 S1/0

BB1 S1/1 -- R5 S1/0

BB1 S1/2 -- R6 S1/0

BB1 S1/3 -- BB3 S1/0 (the iBGP required link)

 

I had initially connected just BB1 S0/0 to R6 and BB1 S1/0 to BB3, because I was just simply going down the table of physical interface connections, ensuring they were all there. It wasn't until a colleage pointed out that the BB1 initial configuration file has numerous serial interfaces that I began questioning the cabling of my lab.

I hope this somewhat clears up exactly what the issues that I was having were, and would appreciate it greatly if you could verify that I'm on the right track with modifying my lab (I will have to add another NM-4T, more cabling, and edit the BB1 initial configuration file to match the interfaces I'll be using)

One final thing... the video mentioned you will be switching R3,R4 and R5 to be 2611XMs at some point. Would I be better off just simply changing my lab to be two 2621XMs and three 2611XMs right away, since the lab is still being built? What advantage do the 2611XMs have over 3640s?

Thanks!

Edit:

This is the configuration changes I have made to the BB1 initial configuration:

interface Serial0/0
description Connected to R1 S1/0
no ip address
encapsulation frame-relay
clockrate 64000
frame-relay intf-type dce
frame-relay route 102 interface Serial0/1 201
frame-relay route 103 interface Serial0/2 301
frame-relay route 104 interface Serial1/0 401
frame-relay route 105 interface Serial1/1 501
frame-relay route 113 interface Serial0/3 311
no shut
!
interface Serial0/1
description Connected to R2 S1/1
no ip address
encapsulation frame-relay
clockrate 64000
frame-relay intf-type dce
frame-relay route 201 interface Serial0/0 102
frame-relay route 203 interface Serial0/2 302
frame-relay route 204 interface Serial1/0 402
frame-relay route 205 interface Serial1/1 502
frame-relay route 213 interface Serial0/3 312
no shut
!
interface Serial0/2
description Connected to R3 S1/0
no ip address
encapsulation frame-relay
clockrate 64000
frame-relay intf-type dce
frame-relay route 301 interface Serial0/0 103
frame-relay route 302 interface Serial0/1 203
frame-relay route 304 interface Serial1/0 403
frame-relay route 305 interface Serial1/1 503
no shut
!
interface Serial0/3
description Connected to R3 S1/1
no ip address
encapsulation frame-relay
clockrate 64000
frame-relay intf-type dce
frame-relay route 311 interface Serial0/0 113
frame-relay route 312 interface Serial0/1 213
frame-relay route 314 interface Serial1/0 413
frame-relay route 315 interface Serial1/1 513
no shut
!
interface Serial1/0
description Connected to R4 S1/0
no ip address
encapsulation frame-relay
clockrate 64000
frame-relay intf-type dce
frame-relay route 401 interface Serial0/0 104
frame-relay route 402 interface Serial0/1 204
frame-relay route 403 interface Serial0/2 304
frame-relay route 405 interface Serial1/1 504
frame-relay route 413 interface Serial0/3 314
no shut
!
interface Serial1/1
description Connected to R5 S1/0
no ip address
encapsulation frame-relay
clockrate 64000
frame-relay intf-type dce
frame-relay route 501 interface Serial0/0 105
frame-relay route 502 interface Serial0/1 205
frame-relay route 503 interface Serial0/2 305
frame-relay route 504 interface Serial1/0 405
frame-relay route 513 interface Serial0/3 315
no shut
!
interface Serial1/2
description Connected to R6 S1/0
no ip address
encapsulation frame-relay
clockrate 64000
frame-relay intf-type dce
no shut
!
interface Serial1/2.51 point-to-point
description PVC 51 to R6
ip address 54.1.3.254 255.255.255.0
frame-relay interface-dlci 51
!
interface Serial1/2.100 point-to-point
description PVC 100 to R6
ip address 54.1.2.254 255.255.255.0
ipv6 address 2001:54:1:2::254/64
ipv6 address FE80::254 link-local
frame-relay interface-dlci 100
!
interface Serial1/2.101 point-to-point
description PVC 101 to R6
ip address 54.1.1.254 255.255.255.0
ip authentication mode eigrp 10 md5
ip authentication key-chain eigrp 10 EIGRP
ipv6 address 2001:54:254:1::254/64
ipv6 address FE80::254 link-local
ipv6 rip RIPng enable
frame-relay interface-dlci 101
!
interface Serial1/2.201 point-to-point
description PPP over PVC 201 to R6
frame-relay interface-dlci 201 ppp Virtual-Template1
!
interface Serial1/2.301 point-to-point
description PPP over PVC 301 to R6
frame-relay interface-dlci 301 ppp Virtual-Template11
!
interface Serial1/2.401 point-to-point
description Bridging over PVC 401 to R6
frame-relay interface-dlci 401
bridge-group 1
!
interface Serial1/3
description Connected to BB3 S1/0
ip address 172.16.4.1 255.255.255.0
clockrate 64000
no shut
!

Am I missing anything?

Thanks!

Should this work on Mac? I just tried the link and it doesnt load the
webex app.

Please tell me v5 of the CoD will be Mac compatible when it is out! :)

I couldnt get webex working at all, im on vista at home. Neither firefox nor IE would install it. Switched to my mac laptop, no problems.

Just bumping this hoping one of the Brians or Scott can lend some insight...

Just bumping this hoping one of the Brians or Scott can lend some insight...

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Scott Morris:

What was the original question?  Sorry...  It messes with me when I don't see the thread!  :)

 

Scott Morris:

What was the original question?  Sorry...  It messes with me when I don't see the thread!  :)

 

Basically, because I don't have an NM-8A/S, I have to settle for two NM-4Ts in my BB1 router. So I changed my bb1.txt to be S0/1-S0/3 and then S1/0-S1/3.

My biggest problem so far has been setting up the physical cabling in my lab. When I set it up, I went down the list of connections given in the hardware guide, and thought I was finished. The list doesnt include the BB1 -> R1, R2, R3 etc physical connections so I was very confused by BB1 had more than two serial interfaces needed. If I hadn't looked in bb1.txt, I would have never known. I made the changes and posted my bb1.txt config above.

I also didn't see anything about the purpose of the BB1->BB3 connection, however Brians video cleared that up for me.

My second question was that Brian mentions in his video earlier in this thread that IE will be moving to 2611XM routers for R3, R4 and R5... I was just wondering when this was going to happen, and which NM/WICs will be used in the "reccomended configuration".  I'm able to switch to 2611XMs if you would reccomend me doing so.

Thanks!

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Yeah, that was always my biggest problem... not so much in doing the labs, but in verification and such.

As far as having different interface names from the labs... thats why I started the other thread about blank topology diagrams. I think that would be useful. :)

Yeah, that was always my biggest problem... not so much in doing the labs, but in verification and such.

As far as having different interface names from the labs... thats why I started the other thread about blank topology diagrams. I think that would be useful. :)

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