DES-3326S Layer 3 Fast Ethernet Switch User’s Guide
•New Root This trap indicates that the Switch has become the new root of the Spanning Tree, the trap is sent by the switch 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 election as the new root.
•Topology Change (STP) 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 Up This trap is sent whenever the link of a port changes from link down to link up.
•Link Down This trap is sent whenever the link of a port changes from link up to link down.
SNMP
The Simple Network Management Protocol (SNMP) is an OSI layer 7 (the application layer) protocol for remotely monitoring and configuring network devices. SNMP enables network management stations to read and modify the settings of gateways, routers, switches, and other network devices. SNMP can be used to perform many of the same functions as a directly connected console, or can be used within an integrated network management software package such as DView.
SNMP performs the following functions:
52 | Switch Management and Operating Concepts |
