mpls-linux-devel

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

[Rodrigo D. <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.
;)

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.
>> ;)
>>
>>
>> ------------------------------------------------------------------------------
>> 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
>> _______________________________________________
>> mpls-linux-devel mailing list
>> mpl...@li...
>> https://lists.sourceforge.net/lists/listinfo/mpls-linux-devel
>>
>>
>
>
> --
> Ak si prajes aby som cital tvoj mail do 5 min, tak napis do predmetu X5.
> Na skype som dostupny stale, len mi daj vediet aby som sa prihlasil.
>
> << 0903 48 47 40 >> mobil
> << 309458351 >> icq
> << ortseamo >> skype
>

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.
> >> ;)
> >>
> >>
> >> ------------------------------------------------------------------------------
> >> 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
> >> _______________________________________________
> >> mpls-linux-devel mailing list
> >> mpl...@li...
> >> https://lists.sourceforge.net/lists/listinfo/mpls-linux-devel
> >>
> >>
> >
> >
> > --
> > Ak si prajes aby som cital tvoj mail do 5 min, tak napis do predmetu X5.
> > Na skype som dostupny stale, len mi daj vediet aby som sa prihlasil.
> >
> > << 0903 48 47 40 >> mobil
> > << 309458351 >> icq
> > << ortseamo >> skype
> >

> ------------------------------------------------------------------------------
> 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

> _______________________________________________
> mpls-linux-devel mailing list
> mpl...@li...
> https://lists.sourceforge.net/lists/listinfo/mpls-linux-devel


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

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

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

Already saw the patches and tested the netlink branch and nexthop branch.
Works beautifully with those regressions, but i will test more.

I tested the kernel patch too. Using right now on my VMs.

No chance yet too see the possibility of getting LDP to work.



On Wed, Apr 21, 2010 at 1:47 AM, <jl...@mi...> wrote:

> 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.
> > >> ;)
> > >>
> > >>
> > >>
> ------------------------------------------------------------------------------
> > >> 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
> > >> _______________________________________________
> > >> mpls-linux-devel mailing list
> > >> mpl...@li...
> > >> https://lists.sourceforge.net/lists/listinfo/mpls-linux-devel
> > >>
> > >>
> > >
> > >
> > > --
> > > Ak si prajes aby som cital tvoj mail do 5 min, tak napis do predmetu
> X5.
> > > Na skype som dostupny stale, len mi daj vediet aby som sa prihlasil.
> > >
> > > << 0903 48 47 40 >> mobil
> > > << 309458351 >> icq
> > > << ortseamo >> skype
> > >
>
> >
> ------------------------------------------------------------------------------
> > 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
>
> > _______________________________________________
> > mpls-linux-devel mailing list
> > mpl...@li...
> > https://lists.sourceforge.net/lists/listinfo/mpls-linux-devel
>
>
> --
> James R. Leu
> jl...@mi...
>