Setup Guide

SNMPv2-SMI::enterprises.6027.3.1.1.4.1.2 = STRING: "OSTATE_DN: Changed interface state to down:
Po 1"
2010-02-10 14:22:40 10.16.130.4 [10.16.130.4]:
SNMPv2-MIB::sysUpTime.0 = Timeticks: (8500932) 23:36:49.32 SNMPv2-MIB::snmpTrapOID.0 = OID:
IF-MIB::linkUp IF-MIB::ifIndex.33865785 = INTEGER: 33865785 SNMPv2-SMI::enterprises.
6027.3.1.1.4.1.2 =
STRING: "OSTATE_UP: Changed interface state to up: Gi 1/1"
2010-02-10 14:22:40 10.16.130.4 [10.16.130.4]:
SNMPv2-MIB::sysUpTime.0 = Timeticks: (8500934) 23:36:49.34 SNMPv2-MIB::snmpTrapOID.0 = OID:
IF-MIB::linkUp IF-MIB::ifIndex.1107755009 = INTEGER: 1107755009
SNMPv2-SMI::enterprises.6027.3.1.1.4.1.2 = STRING:
"OSTATE_UP: Changed interface state to up:
Po 1"
Enabling an SNMP Agent to Notify Syslog Server
Failure
You can congure a network device to send an SNMP trap if an audit processing failure occurs due to loss of connectivity with the syslog
server.
If a connectivity failure occurs on a syslog server that is congured for reliable transmission, an SNMP trap is sent and a message is
displayed on the console.
The SNMP trap is sent only when a syslog connection fails and the time-interval between the last syslog notication and current time is
greater than or equal to 5 minutes. This restriction also applies to the console message.
NOTE: If a syslog server failure event is generated before the SNMP agent service starts, the SNMP trap is not sent.
To enable an SNMP agent to send a trap when the syslog server is not reachable, enter the following command:
CONFIGURATION MODE
snmp-server enable traps snmp syslog-unreachable
To enable an SNMP agent to send a trap when the syslog server resumes connectivity, enter the following command:
CONFIGURATION MODE
snmp-server enable traps snmp syslog-reachable
Table 113. List of Syslog Server MIBS that have read access
MIB Object OID Object Values Description
dF10SysLogTraps 1.3.6.1.4.1.6027.3.30.1.1 1 = reachable2 = unreachable Species whether the syslog
server is reachable or
unreachable.
The following example shows the SNMP trap that is sent when connectivity to the syslog server is lost:
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (19738) 0:03:17.38 SNMPv2-MIB::snmpTrapOID.
0 = OID: SNMPv2-
SMI::enterprises.6027.3.30.1.1.1 SNMPv2-SMI::enterprises.6027.3.30.1.1 = STRING:
"NOT_REACHABLE: Syslog server
10.11.226.121 (port: 9140) is not reachable" SNMPv2-SMI::enterprises.6027.3.6.1.1.2.0 =
INTEGER: 2
Following is the sample audit log message that other syslog servers that are reachable receive:
Oct 21 00:46:13: dv-fedgov-s4810-6: %EVL-6-NOT_REACHABLE:Syslog server 10.11.226.121 (port:
9140) is not reachable
Following example shows the SNMP trap that is sent when connectivity to the syslog server is resumed:
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (10230) 0:01:42.30 SNMPv2-MIB::snmpTrapOID.
0 = OID: SNMPv2-
SMI::enterprises.6027.3.30.1.1.2 SNMPv2-SMI::enterprises.6027.3.30.1.1 = STRING:
Simple Network Management Protocol (SNMP)
885