6509 - multiple ports dropping once a day at exact time
Without getting too detailed, I have a 6509 with a 48port 10/100/1000 GigE card installed. 7 ports have major ping and comms drops to them daily from 10:00am to 11:00am. Through all troubleshooting and cable swapping, etc... the trouble has remained with the ports and has not been specific to any piece of equipment, IP or VLAN... just the 7 ports that drop major pings daily between 10:00 - 11:00am. Anybody ever run across one like this? Seems like a timer is expiring somewhere.. and it is central to the router... But WHAT??
Re: 6509 - multiple ports dropping once a day at exact time
Are all 7 ports on the same ASIC... it could be traffic driven, possibly something scheduled on a server. Check the ASIC layout of the card to determine the oversubscription, then dig into any strange applications or use. (Span ports are a common culprit) Odd that it happens at the same time everyday- I would suspect is an automated network backup with the wrong schedule on a 6148 linecard. Good luck.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...