Cisco
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how to copy running configuration file to your tftp server
Software did install ok, I have Account Control disabled at home. Just didn't open the ports correctly. TFTP from Solarwinds is more straighforward and working from the first run without any other settings. They have also a category with other free tools for learning, subnet calculator, syslog, etc I downloaded and use those too.Cisco's Dynamic Trunking Protocol can facilitate the automatic creation of trunks between two switches. When two connected ports are configured in dynamic mode, and at least one of the ports is configured as desirable, the two switches will negotiate the formation of a trunk across the link. DTP isn't to be confused with VLAN Trunking Protocol (VTP), although the VTP domain does come into play. DTP on the wire is pretty simple, essentially only advertising the VTP domain, the status of the interface, and it's DTP type.
Disabling Dynamic Trunking Protocol (DTP)
Errdisable Port State Recovery on the Cisco IOS Platforms
Introduction This document defines the errdisabled state, describes how to recover from it, and provides examples of errdisable recovery. This document uses the terms errdisable and error disable interchangeably.
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