B. SNMP MIBs and Traps, and RMON Alarm Defaults
B-12
September
2002
9128-A2-GB20-80
Physical Sublayer
(continued)
BRI
(Supported through
ifIndex – RFC 1573.)
ifIndex (RFC 1573)
ifAdminStatus
(RFC 1573)
ifOperStatus (RFC 1573)
devLastTrapString
(devHealthAndStatus.-
mib)
linkDown – One or more alarm
conditions are active on the
interface.
Strings:
‘$ifString down.’ No alarms
exist on the link.
‘$ifString administratively
shutdown.’ (Due to an
intentional shutdown.)
linkUp – No alarms on the
interface.
String:
‘$ifString up.’
Logical Link Sublayer
T1 Network,
BRI,
PRI,
Synchronous Data
Port
Service Side of the
Frame Relay UNI
(Supported by the
media-specific Frame
Relay Services MIB.)
ifIndex (RFC 1573)
ifAdminStatus (RFC
1573)
ifOperStatus (RFC 1573)
devLastTrapString
(devHealthAndStatus.-
mib)
linkDown – LMI is down for the
LMI Protocol configured,
3
or
Frame Relay link is disabled.
Strings:
‘$ifString down.’ No alarms
exist on the link due to LMI.
‘$ifString LMI down.’ No alarms
exist on the link. (e.g., ‘Sync
Data Port S01P1 frame relay
link “Port-1” LMI down.’ )
‘$ifString administratively
shutdown.’ (Due to an
intentional shutdown.)
linkUp – LMI is up or Frame
Relay link is enabled.
String:
‘$ifString up.’
T1 Network,
BRI,
PRI,
Synchronous Data
Port
DTE Side of the Frame
Relay UNI
(Supported by the
media-specific Frame
Relay DTE’s MIB.)
ifIndex (RFC 1573)
ifAdminStatus (RFC
1573)
ifOperStatus (RFC 1573)
devLastTrapString
(devHealthAndStatus.-
mib)
linkDown – LMI is down for the
LMI Protocol configured,
3
or
Frame Relay link is disabled.
Strings:
‘$ifString LMI down.’
‘$ifString administratively
shutdown.’ (Due to an
intentional shutdown.)
linkUp – LMI is up or Frame
Relay link is enabled.
String:
‘$ifString up.’
Table B-6.
linkUp and linkDown Variable-Bindings (2 of 2)
Interface
Variable-Bindings
Possible Cause
1
The DTR alarm condition will only generate a linkUp/ linkDown trap if the DTE
supports the DTR lead state.
2
The RTS alarm condition will only generate a linkUp/ linkDown trap if the DTE
supports the RTS lead state.
3
If the LMI Protocol is not configured, a linkUp/linkDown trap is based solely upon
whether the interface is enabled or disabled.
Summary of Contents for 9126
Page 150: ...4 Configuration Options 4 106 September 2002 9128 A2 GB20 80 ...
Page 182: ...6 Security and Logins 6 16 September 2002 9128 A2 GB20 80 ...
Page 264: ...7 Operation and Maintenance 7 82 September 2002 9128 A2 GB20 80 ...
Page 348: ...A Menu Hierarchy A 4 September 2002 9128 A2 GB20 80 ...
Page 440: ...E Connectors Cables and Pin Assignments E 18 September 2002 9128 A2 GB20 80 ...