User`s guide

6-1

CHAPTER 6

TRAPS

The ATX sends trap PDUs to an SNMP Manager, using a pre-

conﬁgured SNMP Manager IP address. (See

configNMSAddress in the

ATX MIB Reference Guide). If no address has been pre-conﬁgured,

then the ATX sends the traps to the source IP address of the last

SNMP datagram received from an SNMP Manager. If no address

has been pre-conﬁgured, and if no datagrams have been received

since the ATX was booted, then the ATX uses the broadcast IP

address.

The trap PDUs are sent from source UDP port number 161, to

destination UDP port number 162, which are the SNMP standard

numbers reserved for Trap PDUs. The ATX may be conﬁgured to

send an additional copy of each Trap PDU to a UDP port number

you specify. (See

sysTrapPort in the ATX MIB Reference Guide.)

6.1 GENERIC SNMP TRAPS

• coldStart (0) – An ATX has re-started, and the SNMP

Manager's copy of the ATX's conﬁguration may be incorrect.

• warmStart (1) – Not used by the ATX.

• linkDown (2) – A port has failed, and the ATX's local

management agent has disabled usage of the port. The variable

bindings portion of the trap contains the

ifIndex of the port.

• linkUp (3) – A port has come back to life, and the ATX's local

management agent has re-enabled usage of the port. The

variable bindings portion of the trap contains the

ifIndex of the

port.

• authenticationFailure (4) – This trap is generated

whenever the community name in a PDU does not match the

corresponding password. All SetRequest PDUs must match the

configAnyPass (refer to the description of configGetPass for

SetRequest exceptions), GetRequest PDUs must match either the

configGetPass or the configAnyPass. The GetRequest exception is