XOT/X.25 performance on 3600 router

Hi all,
I have a very big problem. I have configured a 3600 Cisco router with X.25 hunt-group to loadbalance traffic on several X.25 line. On the LAN side, i have configured XOT to transport X.25 over TCP till our mainframe. On the same router, i have also configurated SNAsw to transport SNI and QLLC traffic.
This configuration works , therefore i have a problem of performance. When the mainframe send a X25 call, it is OK. But when the mainframe send 2 or more simultaneous X.25 flows, the router drop X.25 flows.
Here in copy show tech and log .
should i enter:
x25 routing use-tcp-if-defs*
and put hold-queue to 60000 in/out?
Any ideas?
Thanks

You could try out with your configuration. It looks good to me. You could also refer to the following URL to get a better
understanding on how to configure cisco routers for X.25 connections. http://www.cisco.com/en/US/products/sw/iosswrel/ps1826/products_configuration_guide_chapter09186a00800d9bc8.html

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