Filter
Top Products
SNMP MIBs and Traps, and RMON Alarm Defaults
B-9
9820-A2-GB20-20
June 2000
Table B-6. linkUp and linkDown Variable-Bindings (1 of 2)
Interface
Variable-Bindings Possible Cause
Physical Sublayer
Network Synchronous
Data Port
(Supported by the
media-specific
RS232-like MIB.)
H ifIndex (RFC 1573)
H ifAdminStatus
(RFC 1573)
H ifOperStatus (RFC 1573)
H devLastTrapString
(devHealthAndStatus.-
mib)
H linkDown – One or more alarm
conditions are active on the
port.
If the interface is configured to
monitor the control lead,
alarms are generated as
shown in Table B-7.
String:
‘$ifString $alarmString down.’
(e.g., ‘Sync Data Port S01P2
DTR and RTS down.’)
‘$ifString administratively
shutdown.’ (Due to an
intentional shutdown.)
H linkUp – No alarms on the
port.
If the interface is configured to
monitor the control lead,
alarms are generated as
shown in Table B-7.
String:
‘$ifString up.’
User Synchronous
Data Port
(Supported by the
media-specific
RS232-like MIB.)
H linkDown – One or more alarm
conditions are active on the
port.
If the interface is configured to
monitor the control lead,
alarms are generated as
shown in Table B-7.
String:
‘$ifString $alarmString down.’
(e.g., ‘Sync Data Port S01P1
DTR down.’)
‘$ifString administratively
shutdown.’ (Due to an
intentional shutdown.)
H linkUp – No alarms on the
port.
If the interface is configured to
monitor the control lead,
alarms are generated as
shown in Table B-7.
String:
‘$ifString up.’