Standards Compliance for SNMP Traps

linkUp and linkDown

The link SNMP traps are:

HlinkUp ± The unit recognizes that one of the communication interfaces is operational.

HlinkDown ± The unit recognizes that one of the communication interfaces is not operational.

The network and synchronous port interfaces (physical sublayer) are represented by an entry in the MIB-II interfaces table and supported by the DS1 MIB.

The following list describes the conditions that define linkUp and linkDown:

linkUp/Down Variable-Bindings

HifIndex (RFC 1573)

This object provides the index into the ifTable and potentially into tables in other MIBs. The values of ifIndex are the same for all models, although not all indexes are supported for each model.

The ifIndex included with the trap consists of:

±1 COM Port

±2 SDSL E1 Interface, Port 1

±10 Synchronous Data Port, Port 1

HifAdminStatus (RFC 1573)

This object specifies the operational state of the interface:

±up(1)

SDSL Network: DSL link is established.

Synchronous Data Port: Port is enabled and both CTS and DSR are ON.

±down(2)

SDSL Network: DSL link is not established.

Synchronous Data Port: Port is disabled or CTS or DSR is OFF.

±testing(3)

A test is active on the interface.

HifOperStatus (RFC 1573)

This object contains the same value as ifAdminStatus.

HifType (RFC 1573)

This object is the type of interface:

±propPointToPointSerial(22)

Used for the synchronous data port and EOC.

±sdsl(96)

Used for the SDSL network interface.

B-2

December 1998

7975-A2-GB20-40

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Paradyne 7975 manual LinkUp and linkDown, LinkUp/Down Variable-Bindings

7975 specifications

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