From: Leah Lynch (leah_lynch@xxxxxxxxxx)
Date: Fri Feb 15 2002 - 21:12:32 GMT-3
I don't know if this will help but, there is a book, Cisco IP Routing, by
Alex Zinin, that looks at Cisco routing from a CS standpoint, it is very
high level technical book, but some of the code examples may help. Also, you
may try looking into the TCP/IP books from Prentice Hall, they tend to
explain how things work rather than just telling you how to configure them.
There is also the TCP/IP Illustrated book series from Addison Wesley and the
OSPF books from Moy. IBM does a really cool TCP/IP Troubleshooting and
Technical review (now 7th edition, I believe) and there is also a book
Troubleshooting TCP/IP by Miller. These are all great reference books for
the TCP/IP protocol and IP routing in general. They take care of a lot of
the information that the CCIE lab expects you to know in advance.
Leah Lynch
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Xu, James
Sent: Friday, February 15, 2002 3:26 PM
To: 'Cameron, John'
Cc: ccielab; Howard C. Berkowitz; 'Michael Davis'
Subject: RE: How route redistribution EXACTLY works (followup)
Agreed, these input from Howard are very helpful.
Can you, or anyone out there in the cisco development community, show some
light about this basic redistribution mechanism? Sharing those information
shouldn't hurt Cisco at all, but will help Cisco's user community a lot.
>From technical point of view, I believe Cisco's competitors such as Juniper
already have deep understanding of Cisco's IOS, (when you think about the
fact that quite a few pioneers in the network field are already working for
Juniper).
Just a side thought.
James
-----Original Message-----
From: Cameron, John [mailto:johcamer@cisco.com]
Sent: Friday, February 15, 2002 4:14 PM
To: ccielab; Howard C. Berkowitz
Subject: RE: How route redistribution EXACTLY works (followup)
Howard,
I do not believe you have gone too far. You have simply provided
some extra details that some of us may be interested in. There may
may be some on this list that are interested in more detailed
information
along the way to their CCIE
just my .02
JDC
-----Original Message-----
From: Jaeheon Yoo [mailto:kghost@chollian.net]
Sent: Friday, February 15, 2002 12:23 AM
To: ccielab; Howard C. Berkowitz
Subject: Re: How route redistribution EXACTLY works (followup)
Hey, Howard.
I always admire your posts. :)
But as you admitted at the bottom of your own post, I'm afraid you've
gone too far here.
I think that's the difference between the requirements for
administrators and those for implementors in general.
When I read some RFC stuffs, I'm always having this kind of confusion.
Do we ever really need such in-depth knowledge that may be useful only
to real protocol implementors?
Yes, it will help us when we know every detail of ins and outs of
protocols, I know that.
But we're already behind the schedule to cover ever expanding variety of
networking subjects.
Anyway, thanks for your insights.
Jaeheon
----- Original Message -----
From: "Howard C. Berkowitz" <hcb@gettcomm.com>
To: <ccielab@groupstudy.com>
Sent: Friday, February 15, 2002 12:49 PM
Subject: RE: How route redistribution EXACTLY works (followup)
>
> I hate to follow up my own posts, but let me offer some suggested
> general reading.
>
> Look at RFC1812, which will give some broad specifications.
>
> John Moy's OSPF books will give you an example of how a protocol
> implementation is designed -- the second book has the code of an
> actual implementation.
>
> You can also download the free Zebra code and examine it. Zebra's
> command language is closer to Cisco's than is GateD. Old versions of
> GateD are downloadable, but the more recent versions are commercial.
> Indeed, there's a commercial version of Zebra called IPinfusion.
>
> At some point, you're going to need to understand a fair bit about
> data structures and searching them. Donald Knuth's _The Art of
> Computer Programming_, Volume 3, has a good deal about it. You also
> may want to do web searches for radix and Patricia trees (also
> spelled tries). The IOS internals book has some material on this sort
> of table.
>
> Agreeing with some other posters, this is interesting material, but
> frankly I'd call it at a level beyond CCIE.
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