1-8
z
An extended linkUp/linkDown trap is the standard linkUp/linkDown trap (defined in RFC) appended
with interface description and interface type information. If the extended messages are not
supported on the NMS, disable this function to let the device send standard linkUp/linkDown traps.
z
If the sending queue of traps is full, the system will automatically delete some oldest traps to
receive new traps.
z
The system will automatically delete the traps whose holding time expires.
Displaying and Maintaining SNMP
To do…
Use the command…
Remarks
Display SNMP agent system
information, including the
contact, location, and version of
the SNMP
display snmp-agent sys-info
[
contact
|
location
|
version
]*
Display SNMP agent statistics
display snmp-agent
statistics
Display the SNMP agent
engine ID
display snmp-agent
local-engineid
Display SNMP agent group
information
display snmp-agent group
[
group-name
]
Display basic information of the
trap queue
display snmp-agent trap
queue
Display the modules that can
send traps and whether their
trap sending is enabled or not
display snmp-agent trap-list
Display SNMPv3 agent user
information
display snmp-agent
usm-user
[
engineid
engineid
|
username
user-name
|
group
group-name
] *
Display SNMPv1 or v2c agent
community information
display snmp-agent
community
[
read
|
write
]
Display MIB view information
for an SNMP agent
display snmp-agent
mib-view
[
exclude
|
include
|
viewname
view-name
]
Available in any view
SNMPv1/SNMPv2c Configuration Example
Network requirements
z
As shown in
Figure 1-3
, the NMS connects to the agent through an Ethernet.
z
The IP address of the NMS is 1.1.1.2/24.
z
The IP address of the agent is 1.1.1.1/24.
z
The NMS monitors and manages the agent using SNMPv1 or SNMPv2c. The agent reports errors
or faults to the NMS.
