Anything strange on the counters when you do a "sh int e x/x" or "sh controllers e x/x"? Anything on the logs? I'm thinking an intermittently jabbering NIC or faulty wiring from the local PCs to the hub. I seem to remember router interfaces shutting down during excessive collisions but can't find a reference. Your logs would show if such a thing occurred. Do you have to reboot the local PCs when you reset the hub? Any correlation between network traffic / backups and outages? If you have a Cisco Service Contract, call the TAC. From a "sh diag" have them look to see if any particular hardware version of your card has problems. (I did with older PA-8E) As others have pointed out a switch that collects per port stats would be useful here. No need to keep it in place once the problem is found. Have you done any research on the Checkpoint to see if it has any know problems? Please post your solution to the group.
> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]] > Sent: Thursday, June 20, 2002 9:54 AM > To: [EMAIL PROTECTED] > Subject: losing connectivity [7:47063] > > > Scenario... We have a 3640 connected to one T1. That then > feeds a hub with > two to three boxes hanging off it; then connects to a > Checkpoint FW. The > problem, seems that the hub gets hosed up (technical term) > and needs to be > reset.... this has been happening on and off for about 3 -4 > months. When > we lose connectivity, from the outside, I can ping the > Ethernet port on the > router, but I can't ping the box hanging off the hub. All > users on the > inside cannot access anything outside the network. We've tried three > different hubs. Using a 2-Eth/2-WAN (NM-2E2W), I switched to > the second > Ethernet port and it seemed to solve the problem (for a short > time) but it's > back again. > > Any help/insight is greatly appreciated.... this is driving me crazy. > > > Misc Box (IDS) > | > | > Cisco3640 --> Cisco Hub --> CheckPoint FW > > Thanx, > mike jablonski > > > > > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > Michael Jablonski > ABN AMRO Asset Management Holdings, Inc. > 161 North Clark St. > 9th Flr > Chicago, IL 60601-2468 > PH: 312.884.2996 > FAX: 312.278.5550 > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=47097&t=47063 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
