Re: [mpls-linux-general] packets not delivered to layer 3 (??)

[James R. L. <jl...@mi...>]

I think I have a bug in mplsadm2.

try doing the command as two steps:

mplsadm2 -A -O 0
<returns key>
mplsadm2 -O key -o push:gen:100:set:eth0:ipv4:10.3.8.198

Jim

> mplsadm2 -A -O 0 -o
> push:gen:100:set:eth0:ipv4:10.3.8.198
> You can refer below in the mail to check out the
> topology and the addresses... the example is the same.
> So, when I give this command, I get...
> Key: 0x00000000
> Out Segment add: Success
> Out Instr: Illegal seek
> 
> And /proc/net/mpls_out contains the following line
> after tha above command is executed...
> 0x00000002 0/0/0 1
> 
> What could be the problem here?
> 
> Thanking you in anticipation
> 
> cheers,
> Sameer
> 
> 
> --- "James R. Leu" <jl...@mi...> wrote:
> > You can make sure the packets are being sent/recv'd
> > on the LSP by looking
> > at the counters in /proc/net/mpls_in and
> > /proc/net/mpls_out.  After you
> > have verified that, then you can try turning on mpls
> > kernel debugging
> > by doing a 'mplsadm2 -d' this will toggle debuggin
> > to on.  execute again to
> > turn it off.  Look to you kernel console log for the
> > output or just do dmesg.
> > 
> > Jim
> > 
> > On Wed, Sep 11, 2002 at 06:59:26AM +0100, Sameer
> > Gharat wrote:
> > > Hello James and all,
> > > 
> > > I have set up 1.152 on two Linux boxes running
> > kernel
> > > ver. 2.4.18-3. The two boxes are set up as...
> > >  ---------             ---------
> > >  |   A   |             |   B   |
> > >  ---------             ---------
> > >      |eth0                 |eth0
> > >      |10.3.8.198           |10.3.8.93
> > > -----------------------------------
> > >          
> > > And the lsp was created b/w A and B using...
> > > On A :
> > > mplsadm2 -A -O -o
> > push:gen:200:set:eth0:ipv4:10.3.8.93
> > > ip2 route add 10.3.8.93 dev eth0 lsp 0x00000002
> > > mpls -L eth0:0
> > > 
> > > On B:
> > > mplsadm2 -A -I gen:200:0
> > > mpls -L eth0:0
> > > 
> > > I believe these commands are enough to create an
> > LSP
> > > between A & B... or at least I hope so.
> > > 
> > > Now, when I try to Ping B from A, the packets
> > reach B,
> > > but it seems the packets are not delivered
> > correctly
> > > up to layer 3 on B. The result is that the
> > > acknowledgement doesn't reach back to A and A
> > shows
> > > 100% packet loss. If I try to ping A from B, then
> > the
> > > ping packets reach A and come back to B (taking
> > the
> > > lsp from A to B). But again, the packets aren't
> > > recognized by B and again ping shows 100% packet
> > loss.
> > > Similar thing happens when I tried injecting
> > packets
> > > using nemesis tools.
> > > 
> > > Is there any problem with the way I've set up the
> > LSP
> > > or is it some other problem?
> > > 
> > > Any help would be greatly appreciated.
> > > 
> > > Cheers,
> > > Sameer
> > > 
> > > 
> > >
> > -- 
> > James R. Leu
> 
> 
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-- 
James R. Leu