Any tips for WAN learning strategy?
optimus
Member Posts: 183
in CCNA & CCENT
I have found the WAN concepts to be my weakest point, and one of the main reasons I have not taken the CCNA yet. I think that it may have to do with the way the material is being presented to me. Does anyone have a source that shows the WAN protocols/encapsulations that can be used why and when? Sometimes I am just thinking, why would I use HDLC instead of PPP encapsulation? And if the network is packet switched, what encapsulation should I use and why? Seems like the books just scatter the material in a random manner, and not laying the foundations down the way I would think they would. If anyone has a good source for understanding WANs I would appreciate it. I already have all the Lammle and Odum books.
- Optimus
- Optimus
Comments
I totally agree with you. I personally believe that Lammle didn't do a good job in explaining WAN technologies. This was exactly the reason why I had to postpone my exam. Finally I got hold of a CBT that really helped me clarify the concept.
Yes, PPP might be the best solution based on situation. Cisco HDLC protocol is proprietary and exclusive to Cisco. This is configured by default in Cisco routers.
- Optimus
the answer is PPP do the error checking - while other L2 prots such as frame-relay, x25 etc leave the error checking to upper layer like TCP or APPLICATION to control the flow.
cheers
Optimus
It has been a while since I returned it back to one of my friend. Will find the name and let you know. I will not recomend it since its outdated.
you are very welcome
and - can you change your avatar picture, optimus ?? i think its a bit impolite : ) no offense : )
cheers..
- Optimus
ok - now it looks much better
go go OPTIMUS PRIMES !!