D-Link DGS-3204 User Guide - Page 34

Gigabit Ethernet Switch User's Guide You can also specify which network managers may receive traps from the Switch by setting a list of IP Addresses of the authorized network managers. The following are trap types a trap manager will receive: ♦ Cold Start This trap signifies that the Switch has been powered up and initialized such that software settings are reconfigured and hardware systems are rebooted. A cold start is different from a factory reset. ♦ Warm Start This trap signifies that the Switch has been rebooted, however the POST (Power On Self-Test) is skipped. ♦ Authentication Failure This trap signifies that an addressee (or manager/ user) on the Switch is not a valid user of the Switch and may have entered an incorrect community name. ♦ New Root This trap indicates that the Switch has become the new root of the Spanning Tree, the trap is sent by a bridge soon after its election as the new root. This implies that upon expiration of the Topology Change Timer the new root trap is sent out immediately after the Switch's selection as a new root. ♦ Topology Change A Topology Change trap is sent by the Switch when any of its configured ports transitions from the Learning state to the Forwarding state, or from the Forwarding state to the Blocking state. The trap is not sent if a new root trap is sent for the same transition. ♦ Link Change Event This trap is sent whenever the link of a port changes from link up to link down or from link down to link up. 20 Switch Management