Hi All, We are having Fragments Timed Out and Fragments Dropped on our network with the following layout: TANDEM(main site, NIC FastEthernet)----CAT5500(main site)---WAN(T3)--- CAT5000(backup site)----TANDEM(backup site, NIC FastEther) >From time to time TANDEM people get Fragments dropped and Fragment Timed Out on backup site . If I lock at the SWITCHES and RSM I am not seeing any collisions (no errors) nor trims or packet missed. The application use udp protocol. I contacted CISCO but till they don't have any clue , only they keep asking me to use a sniffer to capture the traffic and send it to them, nothing wrong on that but since this problem ocurr rondomly some time even sunday night at 3:00 am when is not to much traffic is hard to capture traffic when had ocurred. Has anyone seeing this and how can I fix it? Thank you all for your help in advance. Mike _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. _________________________________ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]