At work we switched from a Cisco Catalyst 3560G to a Catalyst 4500E a few weeks ago.
Remember to issue the
spanning-tree extend system-id command prior to enabling VTP version 3.
During the test period, the Icinga instances logged packet losses of varying degree around the clock when doing ICMPv6 pings. Continue reading Lessons learned on Cisco Catalyst 4500E
While reloading a Cisco Catalyst 3560 running IOS 12.2(55)SE the other day, I noticed the switch stopped sending messages to the configured IPv6 enabled syslog host. Nothing appeared in the log files on the syslog host until I manually disabled and reenabled the log statement. Continue reading Logging messages from Cisco IOS 12.2(55)SE to an IPv6 enabled syslog host