[Users] OpenSER not working after running for several days

[Richard Bennett]

On Thursday 19 October 2006 18:42, you wrote:
> BTW, this phrase "the line was dropping to 500Kbs up/down"
> implies that there was some protocol synching taking place
> that negotiated the speed at that level (like a dsl line).
> It would be more accurate to type "my observed throughput was
> only 500Kbs up/down."
Well yes... that's what I meant.

> So, now I don't get your set-up...  when you typed "I had to lock-down
> the network card to 10mbit full-duplex" and then the bit above about
> the MCI technician and the 4Mbit circuit etc. then this sounds like
> you have a box running openser that is directly plugged into a
> metro-lan-style connection that is hardcoded at the provider end to
> 10/full.
In a datacenter I have a rack, with a 24 channel patch-panel that takes 24 
cables to the meetme room, where the E1s are patched through to the service 
providers. 1 of these is patched through to MCI, and 1 to Interoute for the 
ethernet connections. MCI provide a 4Mbit burst/10, and Interoute a 10Mbit 
burstable to 25Mbit (delivered on ethernet).
In the cabinet each of these go into their own Linux firewall, each with 3 
nics. Behind these firewall are the openser servers, mediaproxy servers, and 
Cisco AS5400/5350 and Lucent max tnt pstn gateways.
  
The firewall connected to Interoute  autonegotiates its connection just fine. 
The openser server behind the MCI firewall seemed extremely sluggish, and 
during tests we couldn't get a reliable throughput. It seemed as if the 
openser was slowing-down, but in fact it was because the nic of the firewall 
was in half duplex. After using ethtool to lock it to 10Mbit/full, everything 
worked fine.
I just thought I'd mention that in case it helped anyone having a similar 
problem..

> And yet, when you type "datacenter patch-panel" this implies that
> there is a local area network
No, just a patch-panel with 24 sockets in the front, and 24 cables going to 
the meetme room, not a switch.

> when I consider "old 10Mbit equipment"
> together with the phrase "datacenter" my jaw hits the ground...
The datacenter doesn't do any switching/routing, they just provide 
point-to-point connections between the rack of the provider, and the rack of 
the user. I don't see anything wrong with a service provider using older 
10Mbit equipment to provide a 4Mbit line really...

> Where is your server?
interxion.com , Brussels.

Hope that cleared up the confusion :o)

Richard