[mpls-linux-general] RE: tcp problem

[Giovanna P. (ERI) <Gio...@er...>]

The hint is valuable,and also previous ones I was already following, =
looking through
linux/net/ipv4/route.c code.
The point is that I still haven't worked out how I can patch
RSVP, to align it to mpls-0.993; as soon as I get a good result for =
this task, I will
go through tcp jamming problem,

Thanks,
Giovanna



-----Original Message-----
From: mi...@en... [mailto:mi...@en...]
Sent: gioved=EC 26 luglio 2001 22.40
To: mpl...@li...
Cc: Gio...@er...
Subject: tcp problem


Hi,
I think that by adding the line "rt->u.dst.pmtu -=3D 4;" to

linux/net/ipv4/route.c , rt_set_nexthop() ,

at

switch(moi->moi_instruction[i].mi_opcode),

in

case MPLS_OP_FWD:

       rt->u.dst.pmtu -=3D 4; /* <---- add this *** */
       moi =3D (struct mpls_out_info*) moi->moi_instruction[i].mi_data;
       goto mpls_again;
       break;

one can correct the small problem that lead to tha jaming of tcp links
established over mpls for linux when high traffic occured over that =
link.
I've tried it, and it works fine.


cheers
-istvan