SNMP traps are alert messages sent from a remote SNMP-enabled device to the SNMP manager.
Extreme 9920 software supports the following generic SNMP traps:
| Name | Description | When initialized |
|---|---|---|
| coldStart | A coldStart trap signifies that the sending protocol entity is reinitializing itself such that the configuration of the agent or the protocol entity implementation may be altered. |
After the device is restarted. After the SNMP service on the device is restarted. |
| linkDown | A linkDown trap signifies that the sending protocol entity recognizes a failure in one of the communication links represented in the configuration of the agent. | A linkDown trap is activated when the operational status of an interface is changed
from UP to DOWN. Example: device(config)# interface ethernet 1/2 device(config-if-eth-1/2)# shutdown The shutdown command initializes a linkDown trap. |
| linkUp | A linkUp trap signifies that the sending protocol entity recognizes that one of the communication links represented in the agent's configuration has come up. |
A linkUp trap is activated when the operational status of an interface is changed from DOWN to UP. Example: device(config)# interface ethernet 1/2 device(config-if-eth-1/2)# no shutdown The no shutdown command initializes a linkUp trap. |