Re: [mpls-linux-devel] MPLS Linux Null Driver on Quagga

[Rodrigo D. <ro...@tr...>]

I don't have right here, but basically I used mixed scenarios, Cisco as P's
and PE's with Linux as P's and PE's too.

I adapted the Linux Labs, but in some hosts I used a Cisco (3640 or 7200),
with STATIC routes.

I had some difficulties with PHP (Poping label on penultimate) with Cisco as
egress. But everything is fine, remembering you can only use static routes.

I used some config examples of MPLS static on Appendix B of Cisco's MPLS
Fundamentals Book as start point to learn how to do in Cisco.




On Tue, Apr 6, 2010 at 6:13 AM, Pali <pal...@gm...> wrote:

> Hi Rodrigo, I don't have answer for You  now, maybe after some time I will
> find out some solution, but now I'm interesting in your MPLS labs with
> emulated Cisco/GNS3 devices. I wanted to make some test with Cisco devices
> as You did. Could You share some network topologies, cisco configuration
> files?
> If possible, great thank You, I'm working on integration of VPLS services
> on Linux, but I have to work on another difficult projects about CPU
> designing, so everything what speeds up my progress is MPLS stuff is
> invited.
>
> Thank You, Pali from Slovakia
>
> 2010/3/31 Rodrigo Dlugokenski <ro...@tr...>
>
>> Hi James and all!
>>
>> I've been messing with mpls on archlinux, like compiling the kernel from
>> git and so on. I already made all MPLS Labs and even integrated, using
>> static routes, using Cisco/GNS3.
>>
>> Now it's time to try something harder, like LDP ;D
>>
>> I followed the instructions from last month posts' and I successfully
>> compiled quagga from git too. But I stopped in the fact that I can only
>> compile using null driver.
>>
>> Question 1: Using null driver LDP does nothing, right?
>>
>> Even with null driver some simple tasks in zebra, like doing a 'no
>> shutdown' in a interface hangs zebra, and I can only kill with 'pkill -9
>> zebra'.
>>
>> I tried to search and figure what is happening, but the code is very messy
>> and I can't even see where to start.
>>
>> Later I tried to compile without null driver, and I compiled successfully.
>> The 'no shutdown' does not hang zebra anymore, but it hangs randomly.
>> (I can hang  changing settings using ifconfig from another vty  too).
>>
>> Question 2: So.... Do you have any hints or advices to where can I look
>> first?
>>
>> I debugged a lot and backtraces don't give me nothing useful (only
>> suspicions on something related to netlink), and running zebra without
>> deamon (-b) doesn't helped too.
>>
>> Question 2.1: Do you have some hint where I can put some breakpoints to
>> try?
>>
>> Any help is apreciated.
>> ;)
>>
>>
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>>
>
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