Re: [mpls-linux-general] ldp-portable updates

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Jim,

ldp_zebra ? Uhmmm, infact, I am still confused %-) about the real difference 
between ldp_linux and ldp_zebra (I have not tested ldp_zebra yet).

Suppose that I can run ldp_linux with zebra, that is zebra will provide the 
routing information to ldp_linux, in this case what makes ldp_zebra so 
different since for making it work we also have to run zebra before (that's 
at least what I can understand from your README).

Or maybe in ldp_zebra, the relation between ldp_zebra and zebra is just like 
the relation between ospfd or bgpd with zebra ?

BTW I am trying to run ldp_linux with zebra, but I still have some problems 
with it, I'll hope I still can overcome it ...

regards,
~Venisa Cabrilla

>From: "James R. Leu" <jl...@mi...>
>Reply-To: jl...@mi...
>To: Venisa Cabrilla <vca...@ho...>
>CC: mpl...@li...
>Subject: Re: [mpls-linux-general] ldp-portable updates
>Date: Tue, 26 Jun 2001 10:44:42 -0500
>
>On Tue, Jun 26, 2001 at 03:24:39PM -0000, Venisa Cabrilla wrote:
> > That's it ! It works now :-D Thanks Jim ...
>
>Ahhhh.  Another satisfied ldp-portable user ;-)
>
>For my next trick we'll get it working with ldp_zebra ...
>
>This weill require a bit more code from me ....
>
>Jim
>
> >
> > regards,
> > ~Venisa Cabrilla
> >
> >
> > >From: "James R. Leu" <jl...@mi...>
> > >Reply-To: jl...@mi...
> > >To: Venisa Cabrilla <vca...@ho...>
> > >CC: mpl...@li...
> > >Subject: Re: [mpls-linux-general] ldp-portable updates
> > >Date: Tue, 26 Jun 2001 09:57:31 -0500
> > >
> > >On Tue, Jun 26, 2001 at 02:28:11PM -0000, Venisa Cabrilla wrote:
> > > > Hi,
> > > >
> > > > Sorry for the late response, I have to go downstair and upstair just 
>to
> > >copy
> > > > the contents of /proc/net/mpls_*, (my lab and my office are not in 
>the
> > >same
> > > > room) but I have done as fast as I can ... :-)
> > >
> > >Late response!  I'm used to latency on the order of days (or weeks ;-)
> > >Your latency is spetacular! :-)
> > >
> > > > First, I have to inform you that since I use my computers as 
>routers, I
> > >do
> > > > certainly have at least three ethernet cards in my routers (that is, 
>the
> > > > topology that I gave you is far from complete, which will explain 
>the
> > > > important contents of file mpls_in) but I used only the commands 
>that I
> > >have
> > > > described in my last email.
> > >
> > >This is cool!  ldp-portable is actually working for someone beside me!
> > >
> > > > In router1:
> > > > mpls_in:
> > > > 40004000 gen 16 0 POP DLV
> > > > 40004400 gen 17 0 POP DLV
> > > > 40004800 gen 18 0 POP DLV
> > > > 40004c00 gen 19 0 POP DLV
> > > > 40005000 gen 20 0 POP DLV
> > > > 40005400 gen 21 0 POP DLV
> > > > 40005800 gen 22 0 POP DLV
> > > > mpls_out:
> > > > 40004003 PUSH(gen 16) SET (eth1)
> > > > mpls_fec:
> > > > 40004003 10.0.0.6/32
> > >
> > >Ahhhh.  Here is the culprite.
> > >
> > > > mpls_labelspace:
> > > > lo 0
> > >
> > >ldp_linux doesn't set the label space for you.  You currently need to
> > >execute
> > >the command 'mplsadm -L eth1:0' for each of the LDP speaking interfaces
> > >before
> > >starting up ldp_linux.
> > >
> > >I have a patch from someone at Ericsson that fixes this.
> > >
> > >Other then the labelspace problem the rest look just fine :-)
> > >
> > >Let me know if this fixes it.
> > >
> > >BTW clues to this being the problem would have shown up in the MPLS 
>kernel
> > >debugging when you tried to ping.
> > >
> > >On Router1:
> > >mplsadm -d
> > >ping 10.0.0.6
> > >dmesg
> > >
> > >You should see that the packet are being sent via mpls_output()
> > >
> > >On Router2:
> > >ping 10.0.0.5
> > >
> > >On Router1:
> > >dmesg
> > >
> > >You should see info about packets arriving on interfaces without a
> > >labelspace
> > >
> > >Jim
> > >
> > > > In router2:
> > > > mpls_in:
> > > > 40004000 gen 16 0 POP DLV
> > > > 40004400 gen 17 0 POP DLV
> > > > 40004800 gen 18 0 POP DLV
> > > > 40004c00 gen 19 0 POP DLV
> > > > 40005000 gen 20 0 POP DLV
> > > > 40005400 gen 21 0 POP DLV
> > > > 40005800 gen 22 0 POP DLV
> > > > mpls_out:
> > > > 40004004 PUSH(gen 16) SET (eth2)
> > > > mpls_fec:
> > > > 40004004 10.0.0.5/32
> > > > mpls_labelspace:
> > > > lo 0
> > > >
> > > > There is nothing in mpls_tunnel, which is normal.
> > > >
> > > >
> > > > regards,
> > > > ~Venisa Cabrilla
> > > >
> > > >
> > > >
> > > > >From: "James R. Leu" <jl...@mi...>
> > > > >Reply-To: jl...@mi...
> > > > >To: Venisa Cabrilla <vca...@ho...>
> > > > >CC: mpl...@li...
> > > > >Subject: Re: [mpls-linux-general] ldp-portable updates
> > > > >Date: Tue, 26 Jun 2001 08:45:55 -0500
> > > > >
> > > > >On Tue, Jun 26, 2001 at 01:31:11PM -0000, Venisa Cabrilla wrote:
> > > > > > Hi James,
> > > > > >
> > > > > > Thanks for your ldp-portable updates, now I can see that 
>mpls_in,
> > > > >mpls_out,
> > > > > > and mpls_fec are not empty.
> > > > >
> > > > >Hello,
> > > > >
> > > > >I think I know the problem.  It has to do with the fact that LDP is
> > >setting
> > > > >up
> > > > >LSPs for too many entries in the route table.  Send me the contents 
>of
> > > > >/proc/net/mpls_* and we can verify this.
> > > > >
> > > > >My default policy of "send labels for everything" may not be valid 
>in
> > >all
> > > > >cases.  This will be simple enough to change I just need to figure 
>out
> > >what
> > > > >the
> > > > >best default policy should be :-(
> > > > >
> > > > >I'll try to duplicate this setup here and see if I can figure it 
>out as
> > > > >well.
> > > > >
> > > > >Jim
> > > > >
> > > > > >
> > > > > > I use the simple configuration in file README.sample :
> > > > > >
> > > > > >      lo 10.0.0.6                lo 10.0.0.5
> > > > > >       ---------                  ---------
> > > > > >      | Router2 |----------------| Router1 |
> > > > > >       ---------                  ---------
> > > > > >           |eth2  192.168.12.0/24     |eth1
> > > > > >      ---------------------------------------
> > > > > >
> > > > > > In router1:
> > > > > > bash# ifconfig lo 10.0.0.5 netmask 255.255.255.255
> > > > > > bash# route add 10.0.0.6 gw 192.168.12.2
> > > > > >
> > > > > > >From inside ldp_linux:
> > > > > > prompt> add global 10.0.0.5
> > > > > > prompt> add interface eth1
> > > > > >
> > > > > > In router2:
> > > > > > bash# ifconfig lo 10.0.0.6 netmask 255.255.255.255
> > > > > > bash# route add 10.0.0.5 gw 192.168.12.1
> > > > > >
> > > > > > >From inside ldp_linux:
> > > > > > prompt> add global 10.0.0.6
> > > > > > prompt> add interface eth2
> > > > > >
> > > > > > After that I can see that mpls_in, mpls_out, and mpls_fec in 
>each
> > >router
> > > > >are
> > > > > > not empty.
> > > > > >
> > > > > > Unfortunately, I cannot ping anymore router1 from router2 and
> > >router2
> > > > >from
> > > > > > router1. Before I enter ldp_linux, I can ping 10.0.0.5 from 
>router1
> > >and
> > > > >ping
> > > > > > 10.0.0.6 from router2. However, I can see the MPLS encapsulation
> > >using
> > > > > > ethereal for ping request messages but there is no ping reply
> > >message.
> > > > > >
> > > > > > Would you mind verify my configuration above and tell me what 
>might
> > >be
> > > > >my
> > > > > > mistakes ?
> > > > > >
> > > > > >
> > > > > > PS: I have to explicitly add the routes using route commands 
>this
> > >time,
> > > > > > because if I use zebra, I cannot use ethereal (ethereal hangs).
> > > > > > I still do not know the reason, it might be due to TCP/UDP
> > >conflicts.
> > > > > >
> > > > > >
> > > > > > regards,
> > > > > > ~Venisa Cabrilla
> > > > > >
> > > > > >
> > > > > >
> > > > > > >From: "James R. Leu" <jl...@mi...>
> > > > > > >Reply-To: jl...@mi...
> > > > > > >To: mpl...@li...
> > > > > > >Subject: [mpls-linux-general] ldp-portable updates
> > > > > > >Date: Sun, 24 Jun 2001 20:23:13 -0500
> > > > > > >
> > > > > > >Sorry to those who have been trying to use ldp-portable from 
>CVS.
> > > > > > >I finnally have gotten around to fixing and testing 
>ldp-portable.
> > > > > > >It's almost back to where it was before I started mucking 
>around
> > >with
> > > > >PDU
> > > > > > >processing.  (interoping with cisco pointed out the need to 
>handle
> > > > >multiple
> > > > > > >PDUs per TCP segment and handle one PDU spread across multiple 
>TCP
> > > > > > >segments)
> > > > > > >
> > > > > > >If you tried ldp-portable in the last 3 weeks and it was 
>broken,
> > >try
> > > > > > >updating your CVS client and giving it another go.
> > > > > > >
> > > > > > >Sorry for the long delay.
> > > > > > >Jim
> > > > > > >--
> > > > > > >James R. Leu
> > > > > > >
> > > > > > >_______________________________________________
> > > > > > >mpls-linux-general mailing list
> > > > > > >mpl...@li...
> > > > > > >http://lists.sourceforge.net/lists/listinfo/mpls-linux-general
> > > > > >
> > > > > >
> > > >
> > > 
> >_________________________________________________________________________
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> > > > >http://www.hotmail.com.
> > > > > >
> > > > > >
> > > > > > _______________________________________________
> > > > > > mpls-linux-general mailing list
> > > > > > mpl...@li...
> > > > > > http://lists.sourceforge.net/lists/listinfo/mpls-linux-general
> > > > >
> > > > >--
> > > > >James R. Leu
> > > > >
> > > > >_______________________________________________
> > > > >mpls-linux-general mailing list
> > > > >mpl...@li...
> > > > >http://lists.sourceforge.net/lists/listinfo/mpls-linux-general
> > > >
> > > >
> > 
> >_________________________________________________________________________
> > > > Get Your Private, Free E-mail from MSN Hotmail at
> > >http://www.hotmail.com.
> > >
> > >--
> > >James R. Leu
> >
> > 
>_________________________________________________________________________
> > Get Your Private, Free E-mail from MSN Hotmail at 
>http://www.hotmail.com.
> >
> >
> > _______________________________________________
> > mpls-linux-general mailing list
> > mpl...@li...
> > http://lists.sourceforge.net/lists/listinfo/mpls-linux-general
>
>--
>James R. Leu
>
>_______________________________________________
>mpls-linux-general mailing list
>mpl...@li...
>http://lists.sourceforge.net/lists/listinfo/mpls-linux-general

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