ENE-NG and GNS3 – Speed and Duplex Mismatch
KB ID 0000983 Problem I don’t know why this happens sometimes with GNS3, and EVE-NG but occasionally I will get a connection between two devices that constantly complains. %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on {interface-name} (not half duplex), with {host-name} {interface-name} (half duplex). For the uninitiated, a speed/duplex mismatch, usually happens when both ends of the link are set differently, or (more...
Cisco IOS – An interface whose trunk encapsulation is “Auto” can not be configured to “trunk” mode.
KB ID0001167 Problem If you try and change a ports status, to make it a trunk port, you may see this error; Petes-Switch(config-if)#switchport mode trunk Command rejected: An interface whose trunk encapsulation is “Auto” can not be configured to “trunk” mode. Trunk Settings I don’t know if this is a throwback to when we had ISL trunking and 802.1q, but you need to specify the encapsulation before you can...
Boot from USB Drive fails with “Cannot get bank X parameters” error
KB ID 0000501 Problem Seen on an HP ML115 while booting to a USB Drive (a SanDisk Cruzer Blade 4GB drive). Error: Cannot get bank 2 parameters. Warning: Bank 2 partition type invalid. Ignoring. Panic: No usable banks found. Solution 1. Reboot the server and enter the BIOS. 2. Locate the USB Mass Storage Device Configuration > USB Settings and change the emulation from [Auto] to [Hard Disk]. 3. Be aware if you have other hard...