[mpls-linux-general] LDP-Portable with ATM switch - Query abt code.

[<nc...@si...>]

Hi Mr Leu,

  I have tried out the latest ldp-portable with an MPLS enabled ATM switch. I performed the following steps:

  1) add global "src address".
  2) add peer "switch's IP address".

  When I sniffed on the wire using Ethereal, I noticed that  the ATM switch upon receiving the Linux router's "Hello" message, initiated a TCP connection and sent a "Initialization" message to it with ATM session parameters.

 However, ldp-portable failed to respond. I delved into the code and found out that in the function ldp_stat_recv_init (from ldp_state_funcs), the function ldp_global_find_adj_ldpid returned a NULL value.

  Looking further I found that ldp_global_find_adj_ldpid called LDP_LIST_HEAD macro which produces a NULL value.

   I do not really understand why passing &g->adj into LDP_LIST_HEAD, where I think g turns out to be a global variable "cfg_handle", will produce a NULL value...

   I will appreciate it if u can advise me on this issue.. Anyway I can get around it?

   Thanks a lot!

Regards,

Paul

 


>>Date:    Tue, 18 Dec 2001 08:54:28 -0600
>>From:    James R. Leu <jl...@mi...>
>>To:      ncc49a <nc...@si...>
>>CC:      mpl...@li...; eng...@nu...
>>Subject: Re: [mpls-linux-general] LDP (linux-port)
>>
Sorry for not getting back to you earlier.  Did someone help you
out with this?  Mostly likely you don't have MPLS_LINUX defined in the
makefile.

Jim

On Tue, Dec 11, 2001 at 05:52:05PM +0800, ncc49a wrote:
> Hi everybody,
> 
>    I have downloaded the latest ldp implementation from the 
> CVS. I have followed the instructions exactly as specified 
> in the README in /linux-port for a direct connection 
> between 2 PCs.
> 
>    When done, a ldp session seems to have been established 
> between the 2 linux LSRs. Showing "database", "session" 
> and "route" all yield some results.
> 
>    However, when I tried to 
> ead /proc/mpls_in, /proc/mpls_out, /proc/mpls_fec files, 
> they were all blank, contrary to the README.
> 
>    That means no label bindings have been established 
> between the 2 LSRs right? 
> 
>    From the mailing list, I have noticed Mr Kauder Thorsten 
> is doing something similiar at the moment. I wonder if you 
> faced such an issue.
> 
>    I guess I must have missed out something. I will 
> appreciate all help/advice provided. 
> 
>    Thanks a lot!
> 
> Regards,
> 
> Paul
> 
> _______________________________________________
> mpls-linux-general mailing list
> mpl...@li...
> https://lists.sourceforge.net/lists/listinfo/mpls-linux-general

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


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