Paradyne 9123 manual Physical Sublayer, Mib

SNMP MIBs and Traps, and RMON Alarm Defaults

Table B-6. linkUp and linkDown Variable-Bindings (1 of 2)

Interface

Variable-Bindings

Possible Cause

Physical Sublayer

Network	H ifIndex (RFC 1573)	H linkDown ± One or more alarm
(Supported by the	H ifAdminStatus	conditions are active on the
		interface.
media-specific DS1	(RFC 1573)
		Alarm conditions include:
MIB.)	H ifOperStatus (RFC 1573)
		± Loss of Signal (LOS) or
	H devLastTrapString	far-end loss of signal
	(devHealthAndStatus.-	± Out of Frame (OOF)
	mib)	± Alarm Indication Signal
		(AIS)
		± Excessive Error Rate (EER)
		± Yellow Alarm
		Strings:
		`$ifString down.' No alarms
		exist. (e.g., `Network T1 down
		due to yellow alarm.')
		`$ifString administratively
		shutdown.' (Due to an
		intentional shutdown.)
		H linkUp ± No alarms on the
		interface.
		String:
		`$ifString up.'
Synchronous	H ifIndex (RFC 1573)	H linkDown ± One or more alarm
Data Port	H ifAdminStatus	conditions are active on the
		port.
	(RFC 1573)
(Supported by the		Alarm conditions include:
	H ifOperStatus (RFC 1573)
		± DTR off 1
media-specific
RS232-like MIB.)	H devLastTrapString	± RTS off 2
	(devHealthAndStatus.-	± `' ± Not DTR or RTS, but
	mib)
		link is down.
		String:
		`$ifString $alarmString down.'
		(e.g., `Sync Data Port S01P1
		DTR and RTS down.')
		`$ifString administratively
		shutdown.' (Due to an
		intentional shutdown.)
		H linkUp ± No alarms on the
		port.
		String:
		`$ifString up.'

1The DTR alarm condition will only generate a linkUp/linkDown trap if the DTE supports the DTR lead state.

2The RTS alarm condition will only generate a linkUp/linkDown trap if the DTE supports the RTS lead state.

9123-A2-GB20-10 July 2000 B-9