Re: [mpls-linux-general] zebra ldp don't work for [static] but now OSPF....

[Markus H. <mh...@as...>]

James R. Leu wrote:
> On Tue, Feb 18, 2003 at 12:30:27PM +0100, Markus Hennig wrote:
> <snip>
> 
>>now i see the label information and can test them with a ping
>>(dumping it with a modified uml_switch), but there is a other problem:
>>
>>mpls_in and mpls_out are constantly growing until around 220 and more 
>>(peak was 682) enries for in and 35 for LER-1 - then they decrease 
>>rapidly to something about 40...
>>
>>do you have any ideas why?
> 
> 
> Multipath and merging.
> 
ok

> 
>>btw: the systems runs very unstable (i use a while true loop for mplsd),
>>especially LER-7 (i set the two egress routes per script and don't use 
>>them in zebra,ospfd,mplsd - otherwise it chrashes immediately)
> 
> 
> multipath is bad.  I have idea how to support it, but I know for sure it
> will cause things to behave badly.  (as an FYI RFC3036 explicitly says it
sorry for not knowing this :-)

> doesn't support multipath.  Any solution that vendors have put in place it
> proprietary.)

ok, i changed the config for mplsd (ospfd and zebra stays!):


           .--------LSR_2 IN:74 OUT:10
          /              \
         /                LSR_5 IN:119 OUT:10
        /                /              /
       /     IN:32      /              /
----LER_1   OUT:5  LSR_3         LER_7 IN:53 OUT:1
   IN:77                \           |  \
  OUT:2                  \          |   \
            IN:98 OUT:5   LSR_6     |
                         /          |
                    LSR_4-----------'
                  IN:17 OUT:7

      |----------- MPLS ------------|

> 
>>my testsetup:
>>
>>          .--------LSR_2-----------.
>>         /              \          |
>>        /                LSR_5     |
>>       /                /     \    |   /
>>      /                /       \   |  /
>>----LER_1--------LSR_3         LER_7
>>      \                \       /   |  \
>>       \                \     /    |   \
>>        \                LSR_6     |
>>         \              /          |
>>          '--------LSR_4-----------'
>>
>>     |----------- MPLS ------------|
> 
> 
> Evil.  Lets try walking before running.  Simplify the topo and let me know
> if you still see so much instability.
> 
looks more stable (there are some mystic things with not available nics 
during startup of ospf - maybe its ulm_swicth, after a ping they are gone)

numbers of incoming/outgoig see above
all numbers are slow growing (and sometimes decreasing)

> Eventually mplsd will be able to support this type of 'complex' topo, but
its ok, there is no need for
> I'm not there yet.  Maybe with you help we can nail down some of the real
> troubled areas.
i do my best...

thx in advance,
markus

> 
> Thanks