Category: Cisco
Anything related to Cisco
Cisco Catalyst 9400 Series
Cisco’s Catalyst 9400 Series introduced this summer do look promising, but it’s still missing a few highlights: Complete support for redundant supervisors; unavailable according to the release notes dated July 31, 2017 The supervisor module (hardware) supports redundancy, but the software does not. The associated route processor redundancy (RPR) and stateful switchover (SSO) features are […]
Read More → Cisco Catalyst 9400 SeriesRSA keys in Cisco switches and routers
See also Cisco Bug ID CSCuz72344.
Read More → RSA keys in Cisco switches and routersLessons learned on Cisco Catalyst 4500E
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.
Read More → Lessons learned on Cisco Catalyst 4500ELong-running Windows 7 SP1, Cisco VPN Client 5.0.07.0440, and “Reason 414: Failed to establish a TCP connection”
I’ve noticed that Cisco VPN Client 5.0.07.0440 tends to fail with “Reason 414: Failed to establish a TCP connection.” on long-running Windows 7 SP1. It’s been going on for years.
Read More → Long-running Windows 7 SP1, Cisco VPN Client 5.0.07.0440, and “Reason 414: Failed to establish a TCP connection”Logging messages from Cisco IOS 12.2(55)SE to an IPv6 enabled syslog host
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.
Read More → Logging messages from Cisco IOS 12.2(55)SE to an IPv6 enabled syslog host