Frame Relay and WAN Troubleshooting

[adeelhasany]

Great Video... R4 does nt have route to get to the 7 network...

[akhtarspark]

Awesome. Your explanation is very easy to understand. Better than my teacher.

[Keith6783]

@akhtarspark

Thanks for the comments, I appreciate it.

Best wishes,

Keith

[MrYaboulamin]

Thank You Dr. Keith for the well explained videos. can you please assit us with COMPLEX WILD CARD MASKING ON CCNA. eg" complex wildcard mask is using the address 10.0.32.0 and wildcard mask 0.0.32.15 to select the first 15 host addresses in either the 10.0.0.0 network or the 10.0.32.0 network."i copied this from the cisco networking academy curriculum but couldnt understand how this is calculated. looking forward to seing your explanation. Thanks in advance

Lamin . CCNA CANDIDATE JANUARY 2012

[Keith6783]

@MrYaboulamin

I will add that to my list. Thank you for the request. (For your CCNA, you won't have to do any non-consecutive wild card masks, so you don't have to worry for the certification).

Keith

[geofonics]

@Keith6783,

sorry, i forgot to mention that I connected to the router using usb to serial converter plugged in to the rollover cable->which is connected to the router console port, but I am not sure which application (like hyper terminal in windows) to use and the required settings..I've installed the driver for serial converter...hope you understand my problem now..

[Keith6783]

@geofonics

I purchased SecureCRT and use it for the USB/Serial connection

[geofonics]

Thank you very much for spending your time and effort to create this very informational/professional video Keith...

What tool are you using to draw the network diagrams?~ looks great!

[Keith6783]

@geofonics

I use TechSmith's products for drawing. There is a program they make called snaggit, that has a good editor on the mac. I use that most of the time.

Thanks for the comments.

Best wishes,

Keith

[geofonics]

@Keith6783

Thanks Keith...I recently bought a mac laptop, but I am new to Mac as i was using Windows OS till day...now, I don't know how to connect to the router console from my mac...I would really appreciate if you could help on this..thanks in advance..

[Keith6783]

@geofonics

If you need to connect to a live router's console port from the mac, you would want to purchase a USB to serial 9 pin adapter. They are around $20.  Then from the adapter, use the 9pin blue cisco cable to connect to the console port.

Best wishes,

Keith

[cdowis]

Keith,

Thanks very much. I am still unclear on p2p and multipoint, and when you use subinterfaces on FR. Why is R4 using s0/0 but r5 using a subnet of s0/0.1?

Also, if you use a subnet, do you always use multipoint? When do you use p2p and multipoint?

thanks.

[Keith6783]

@cdowis

P2P connections have at the most 2 devices on the same IP subnet. Multipoint will allow 3 or more devices on the same IP subnet. P2Mpoint networks, can use either the physical or multipoint subinterface. I wanted to demonstrate both. Hope that helps.

Best wishes,

Keith

[rajeshnaveen15]

Keith your enthusiastic approach to explain the Stuff is really very nice. I have seen so many facilitator for all the topic however what you explain bit by bit without skipping any step its really awesome... Keep this up..

[ThePaperboy9]

Thanks Keith. This is a real professional-grade lesson right here. As the video started, I said "wow, there's a lot going on here!!" And then you start going over each link, step by step, and everything seemed crystal clear. And what I love is that you don't skip steps, and you sound enthusiastic about the material, so it's easy to follow. I learned a ton in this vid and it gave me a lot more confidence in frame-relay. Best believe I'll be checking out the other vids, thanks so much

[Keith6783]

@ThePaperboy9

Thanks for the kind words!

Keith

[mystrybehindme]

here is a hub and spoke topology. R1 as Hub and R2, R3 as spokes.

PVC between R1 and R2 has DLCIs 102 and 201

PVC between R1 and R3 has DLCIs 103 and 301

There is one more unused PVC between R2 and R3

We cannot use point-to-point interfaces and any other protocol

Can one spoke ping the other one without using Static Mapping and even Inverse Arp.

i am pretty confused as friend shown me that this could happen

[Keith6783]

@mystrybehindme

Inverse ARP can dynamically map L3 addresses to L2 DLCIs, that is true. In a production environment, because PVCs aren't free, there aren't likely to be extra PVCs lying around. We also are not likely to use inverse ARP and leave mappings to chance. In a hypothetical scenario, inverse ARP could map R2 to R3 directly, and they would be able to ping.

Thanks for watching the video, and thanks for your comments.

Keith

[Drachen2180]

Great video. Thanks for taking the time to do these.

[Keith6783]

@Drachen2180

You are very welcome. Thanks for taking time to post!

Best wishes,

Keith

[123456iambelial]

Hi Keith, do you have a video about explaining the OSPF network types, NBMA full and star, Broadcast, Point-to-point, Point-to-multipoint Broadcast and Point-to-multipoint NBMA?

[Keith6783]

@123456iambelial

I will add that to my list.  Thanks for the recommendation.

Keith

[123456iambelial]

@Keith6783 Thanks, Keith. In addition to my request, Redistributing to EIGRP. Redistribution to OSPF is easy t under stand, but in EIGRP is kind of hard, especially on choosing the right value.

[cisk0skid]

Fantastic step by step explanation & troubleshooting.

I arrived here via a question I posted on CLN.

The Frame relay fog has now lifted.

[Keith6783]

@cisk0skid

Great to hear. Glad it helped. Thanks for the kind comments!

Best wishes,

Keith

[GoodGameOKC1]

As with all of your video's, good good stuff!! Thanks for sharing your knowledge Keith

[Keith6783]

@GoodGameOKC1

My pleasure. Thanks for the positive feedback. I appreciate it.

Keith

[Keith6783]

@XSFlanger-

You are very welcome. Thanks for the comments! :)

Keith

[XSFlanger]

Man that network was really messed up :)

Thanks for the video. Very cool as usual :)

[Keith6783]

bbormlien- thank you for the feedback.

Best wishes to you.

[bbormlien]

Very very very useful - thanks so much for setting this up....

[Keith6783]

Hello MiamiRoach-

Thanks for letting me know. I will watch the audio channels better when exporting in the future.

Thank you also for the kind words. It is always appreciated as well.

Keith

[MiamiRoach]

FYI. There's only audio in one track in your voice over (left)

The music intro has both L,R channels.

Great tutorial.