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

[<jl...@mi...>]

Renato has been doing some work on quagga which has spurred me
to do some work as well.

I will try to get a working version of static labels soon.

On Wed, Apr 07, 2010 at 03:31:53PM -0300, Rodrigo Dlugokenski wrote:
> 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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> >
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> >

> ------------------------------------------------------------------------------
> Download Intel&#174; Parallel Studio Eval
> Try the new software tools for yourself. Speed compiling, find bugs
> proactively, and fine-tune applications for parallel performance.
> See why Intel Parallel Studio got high marks during beta.
> http://p.sf.net/sfu/intel-sw-dev

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-- 
James R. Leu
jl...@mi...