Chapter 13. SNMP Management
61200305L1-1 ATLAS 550 User Manual 13-3
Disabling Trap Generating Events
You can disable trap generating events in three ways:
Standard Traps
RFC1213, or MIB II, defines the object type snmpEnabledAuthenTraps. If you
set this value to 2, the generation of the authenticationFailure trap is disabled.
This trap is enabled by setting snmpEnableAuthenTraps to 1.Onepossiblerea-
son for an authentication failure would be an invalid community name in
the received protocol message. Table 13-1 describes the standard traps sup-
ported by ATLAS 550.
1. Disable T
RAP
T
RANSMISSION
. From the terminal menu, select SNMP
and set T
RAP
T
RANSMISSION
to D
ISABLED
.
OR
2. Define trap thresholds to disable specific trap events. Refer to the
ATLAS 550 MIB in System Event Logging onpageA-1foradescription
of each trap event supported by the ATLAS 550.
For example, consider the coldStart trap which is a system controller
event. If you defined for destination 0, a trap filtering threshold of
W
ARNING
for the system controller, then the coldStart trap would not
generate to that destination because the coldStart trap severity level is
defined as N
ORMAL
.
(Recall that each trap event has a severity level: D
ISABLED
,I
NFORMA
-
TIONAL
,N
ORMAL
,W
ARNING
,M
INOR
,M
AJOR
, and C
RITICAL
.)
OR
3. Control certain traps through SNMP of specific MIB variables. These
variables are outlined in the remainder of this chapter.
Table 13-1. Standard SNMP Traps
Index Trap Name Severity Description
0 coldStart Normal ATLAS 550 is such that its configuration may be
altered; this trap is generated on power up.
1 warmStart Normal ATLAS 550 is reinitializing without altering its
configuration.
2 linkDown Warning One of the ATLAS 550 communication links has
failed.
3 linkUp Normal One of the ATLAS 550 communication links has
come up.
4 authenticationFailure Informational ATLAS 550 has received a protocol message that
has failed authentication.
