3Com 3Com SuperStack 3 Switch 3800 Family, User Manual, Page: 45 / 182

Using SNMP 3-9
Accessing Switch
Agents
In order to have access to the SNMP agent residing in the Switch, at
least one VLAN on the Switch must have an IP address assigned to it.
For more information on assigning an IP address, refer to “Manually
Configuring the IP Settings,” on page 3-6.
Saving
Configuration
Changes
If you make configuration changes to the Switch using an SNMP
manager, you must save the changes so that they are not lost on the
next Switch reboot. You can save your changes by using the SNMP save
attribute, or by issuing the
save
command from the command line
interface.
Supported MIBs In addition to private MIBs, the Switch 3800 supports the standard
MIBs listed in Table 3-2.
Supported Traps A trap is a message sent by an SNMP agent to an authorized trap
receiver (usually a network management station) to indicate the
occurrence of a significant event, such as an error condition or a
threshold that has been reached. The Switch 3800 supports the traps
listed in Table 3-3.
Table 3-2 Supported MIBs
Description RFC Number
MIB II 1213
Bridge MIB 1493
RMON 1757
RMON II Probe Configuration 2021
Evolution of Internet 1573
Table 3-3 Supported Traps
Trap Description
Cold start Indicates that the device is reinitializing itself.
Link up Indicates that the device recognizes that one of its
communication links has come up.
Link down Indicates that the device recognizes a failure in one of
the communication links represented in the agent’s
configuration.
Rising alarm Indicates that an RMON alarm entry has crossed its
rising threshold
(continued)
SW3800.BK Page 9 Tuesday, May 5, 1998 5:20 PM