Re: [mpls-linux-general] MPLS and ATM

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

Hello,

This is great debugging info!

>   mpls_atm_create_vcc: vci 33 <-> 1024 vpi 0 <-> 1

Here we see where I consult the card VPI/VCI ranges

>   atm_connect (TX: cl 0,bw 0-0,sdu 65535; RX: cl 1,bw 0-0,sdu 65535,AAL 5)

Here we see the params I sent to the ATM layer, notice "sdu 65535".

>   Apr  5 16:06:37 onc2 kernel: IA:  SDU size over the configured SDU size
> 10240

IA doesn't like an sdu 65535 I guess.  So I think the correct fix for this is
going to be to consult with the card for an SDU size instead of just blindly
using 65535.

Thanks for the great debugging info!

Jim

> >>EIP; d083daa3 <[iphase]ia_close+1b3/330>   <=====
> Trace; d083dca9 <[iphase]ia_open+89/d8>
> Trace; d083dce1 <[iphase]ia_open+c1/d8>
> Trace; c01edd70 <atm_do_connect_dev+14c/184>
> Trace; c01eddd6 <atm_do_connect+2e/34>
> Trace; c01ede9d <atm_connect_vcc+c1/120>
> Trace; c01dfa36 <mpls_atm_create_vcc+1ca/244>
> Trace; c01dcee7 <mpls_add_out_label+20b/4ac>
> Trace; c014f486 <nfs_read_rpcsetup+3a/ec>
> Trace; c01dc599 <mpls_rtm_newnhlfe+d/14>
> Trace; c019e269 <rtnetlink_rcv+24d/38c>
> Trace; c01e0a2e <netlink_data_ready+1a/60>
> Trace; c01e0436 <netlink_unicast+296/2dc>
> Trace; c01e08b7 <netlink_sendmsg+1df/1f0>
> Trace; c01e06d8 <netlink_sendmsg+0/1f0>
> Trace; c019508d <sock_sendmsg+81/a4>
> Trace; c01e06d8 <netlink_sendmsg+0/1f0>
> Trace; c0195cfc <sys_sendto+d0/f0>
> Trace; c01b16c8 <ip_rcv+358/390>
> Trace; c01b17f0 <ip_rcv_finish+0/210>
> Trace; d083d0f5 <[iphase]ia_int+85/94>
> Trace; c019a1cd <net_rx_action+125/240>
> Trace; c01964cb <sys_socketcall+123/1dc>
> Trace; c0106daf <system_call+33/38>
> Code;  d083daa3 <[iphase]ia_close+1b3/330>
> 00000000 <_EIP>:
> Code;  d083daa3 <[iphase]ia_close+1b3/330>   <=====
>    0:   f7 77 0c                  div    0xc(%edi),%eax   <=====
> Code;  d083daa6 <[iphase]ia_close+1b6/330>
>    3:   89 c3                     mov    %eax,%ebx
> Code;  d083daa8 <[iphase]ia_close+1b8/330>
>    5:   b8 01 00 00 00            mov    $0x1,%eax
> Code;  d083daad <[iphase]ia_close+1bd/330>
>    a:   85 db                     test   %ebx,%ebx
> Code;  d083daaf <[iphase]ia_close+1bf/330>
>    c:   0f 44 d8                  cmove  %eax,%ebx
> Code;  d083dab2 <[iphase]ia_close+1c2/330>
>    f:   80 7f 2c 00               cmpb   $0x0,0x2c(%edi)
> Code;  d083dab6 <[iphase]ia_close+1c6/330>
>   13:   74 00                     je     15 <_EIP+0x15> d083dab8
> <[iphase]ia_close+1c8/330>
> 
> > -----Original Message-----
> > From: James R. Leu [mailto:jl...@mi...]
> > Sent: Wednesday, April 04, 2001 8:27 PM
> > To: Earle, Jonathan [CAR:1A31:EXCH]
> > Cc: 'Linux MPLS List'
> > Subject: Re: [mpls-linux-general] MPLS and ATM
> > 
> > 
> > Hello,
> > 
> > What is the atm index of your ATM card?
> > 
> > cat /proc/net/atm/device
> > 
> > It shows up as the Intf.
> > 
> > When creating your atm interface (via atmarp -c) the index in the name
> > needs to match that of the index from above.
> > 
> > Example:
> > 
> > If the atm card index (from /proc/net/atm/device) is 3
> > 
> > atmarp -c atm3
> > 
> > I know this is a kind of a ridiculous rule, but due to the nature of
> > ATM for Linux it is a requirement.  Someday I'll get a around 
> > to re-writing
> > the way ATM interfaces are handled on Linux ...
> > 
> > Let me know if this still doesn't help.
> > 
> > Jim
> > 
> > On Wed, Apr 04, 2001 at 05:51:21PM -0400, Jonathan Earle wrote:
> > > Hi James,
> > > 
> > > Setup is as follows:
> > > 
> > > Interphase 5575 ATM NIC
> > > Kernel 2.4.3
> > > MPLS v0.990
> > > 
> > > Basic IP connectivity between the two NICs works fine.  I 
> > configure the NICs
> > > thusly:
> > > 
> > > master)
> > >        atmsigd -b -m network
> > >        atmarpd -b
> > >        sleep 2s
> > > 
> > >        if [ "$adapter" != "atm$anum" ]; then
> > >           atmarp -c atm$anum
> > >        fi
> > > 
> > >        ifconfig atm$anum 192.168.1.1 up
> > >        sleep 2s
> > >        atmarp -s 192.168.1.2 0.0.102
> > >        ;;
> > >  slave)
> > >        atmsigd -b
> > >        atmarpd -b
> > >        sleep 2s
> > > 
> > >        if [ "$adapter" != "atm$anum" ]; then
> > >           atmarp -c atm$anum
> > >        fi
> > > 
> > >        ifconfig atm$anum 192.168.1.2 up
> > >        sleep 2s
> > >        atmarp -s 192.168.1.1 0.0.102
> > >        ;;
> > > 
> > > Using the examples in REAME.atm, I can create the labelspace:
> > > 
> > > root@onc4:~> cat /proc/net/mpls_labelspace
> > > lo      0
> > > teql0   0
> > > atm1    3
> > > 
> > > But not IN labels:
> > > 
> > > mpls_add_in_label: enter
> > > mpls_info_default_in_instruction: enter
> > > mpls_info_default_in_instruction: exit
> > > mpls_atm_create_vcc: enter(1,0,33,1)
> > > mpls_atm_create_vcc: adev == NULL
> > > mpls_add_in_label: failed creating vcc
> > > __mpls_del_in_label: enter
> > > __mpls_del_in_label: exit
> > > mpls_add_in_label: exit
> > > 
> > > or OUT labels:
> > > 
> > > mpls_add_out_label: enter
> > > mpls_info_default_moi_instruction: enter
> > > mpls_info_default_moi_instruction: exit
> > > mpls_atm_create_vcc: enter(1,0,33,2)
> > > mpls_atm_create_vcc: adev == NULL
> > > mpls_add_out_label: failed to create VCC
> > > __mpls_del_out_label: enter
> > > __mpls_del_out_label: exit
> > > mpls_add_out_label: exit
> > > 
> > > Cheers!
> > > Jon
> > > 
> > > _______________________________________________
> > > mpls-linux-general mailing list
> > > mpl...@li...
> > > http://lists.sourceforge.net/lists/listinfo/mpls-linux-general
> > 
> > -- 
> > James R. Leu
> > 

-- 
James R. Leu