Re: Re: [mpls-linux-general] Newbie problems

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

See my reponse inline ...

On Thu, Sep 23, 2004 at 10:59:49PM +0200, Krzysztof Musia? wrote:
> Hi all,
> I've still got a problem with running my configuration
> All commands I run directly from the console.
> I use debian 3.0r2 with 2.6.6 kernel  and MPLS 1.935
> 
> It's my conf. Is it correct?
> I cannot ping from LER A to LER C. 
> I've got messages as follow:
> mpls_skb_dump: from eth0 with len 88 (296)headroom=16 tailroom=24, etc...
> and lost all packets
> 
> 
> 
> 10.0.0.2	 10.0.0.1   10.1.0.1	   10.1.0.2
>     ETH0         ETH0   ETH1	          ETH0
> |LER A|------------|LSR B|---------------|LER C|
> 
>           20			  22
>     -------------->	  --------------->
>     <--------------       <---------------
>           21                    23
> 
> #LER A
> mplsadm2 -A -O 0
> mplsadm2 -O 0x02 -o push:gen:20:set:eth0:ipv4:10.0.0.1
> ip route add 10.1.0.2/32 dev eth0 spec_nh 0x8847 0x2
> mplsadm2 -A -I gen:21:0
> mplsadm2 -L eth0:0
> 
> 
> # LER C 
> mplsadm2 -A -O 0
> mplsadm2 -O 0x02 -o push:gen:23:set:eth0:ipv4:10.1.0.1
> ip route add 10.0.0.2/32 dev eth0 spec_nh 0x8847 0x02
> mplsadm2 -A -I gen:22:0
> mplsadm2 -L eth0:0
> 
> 
> # LSR B 
> mplsadm2 -A -O 0
> mplsadm2 -O 0x02 -o push:gen:22:set:eth1:ipv4:10.1.0.2
> mplsadm2 -A -I gen:20:0
> mplsadm2 -L eth0:0
> mplsadm2 -B -I gen:20:0 -O 0x02
> 
> mplsadm2 -A -O 0
> mplsadm2 -O 0x03 -o push:gen:21:set:eth0:ipv4:10.0.0.2
> mplsadm2 -A -I gen:23:0
> mplsadm2 -L eth1:0
> mplsadm2 -B -I gen:23:0 -O 0x03

Your commands match the picture above.

> I have no /proc/sys/mpls/debug 
> Is it because of kernel configuration ?
> I think  turn on all I need to MPLS conf.

When the docs say /sys/mpls/debug they are refering to the /sys
filesystem.  Here is my fstab entry for the /sys filesystem:

none                    /sys                    sysfs   defaults        0 0

Can you capture the kernel output from each device and sent it to the list?

> Krzysztof Musial
> km...@is...
> 
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-- 
James R. Leu
jl...@mi...