1-4
Operation Command Description
Add a user to an SNMP
group
snmp-agent usm-user v3
user-name group-name
[ cipher ] authentication-mode
{ md5 | sha } auth-password
[ privacy-mode { des56 |
aes128 } priv-password ] ] [ acl
acl-number ]
Required
Set the maximum size of
an SNMP packet for
SNMP agent to receive
or send
snmp-agent packet max-size
byte-count
Optional
1,500 bytes by default.
Set the device engine ID
snmp-agent local-engineid
engineid
Optional
By default, the device engine ID is
“enterprise number + device
information”.
Create or update the
view information
snmp-agent mib-view
{ included | excluded }
view-name oid-tree [ mask
mask-value ]
Optional
By default, the view name is
“ViewDefault” and OID is 1.
Switch 4210 provides the following functions to prevent attacks through unused UDP ports.
z Executing the snmp-agent command or any of the commands used to configure SNMP agent
enables the SNMP agent, and at the same opens UDP port 161 used by SNMP agents and the
UDP port used by SNMP trap respectively.
z Executing the undo snmp-agent command disables the SNMP agent and closes UDP ports used
by SNMP agent and SNMP trap as well.
Configuring Trap Parameters
Configuring Basic Trap
Trap messages refer to those sent by managed devices to the NMS without request. They are used to
report some urgent and important events (for example, the rebooting of managed devices).
Note that basic SNMP configuration is performed before you configure basic trap.
Table 1-3 Configure basic Trap
Operation Command Description
Enter system view
system-view
—
Enable the switch to send
Trap messages to NMS
snmp-agent trap enable [ configuration |
flash | standard [ authentication | coldstart
| linkdown | linkup | warmstart ]* | system | ]
Enable
the port to
Enter port view
or interface view
interface interface-type interface-number
Optional
By default, a port
is enabled to send
all types of Traps.
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