1.1.1 display snmp-agent
Syntax
display snmp-agent { local-engineid | remote-engineid }
View
Any view
Parameter
local-engineid: Displays a local engine ID.
remote-engineid: Displays a remote engine ID.
Description
Use the display snmp-agent command
to view the engine ID of the current device.
An SNMP engine ID identifies an SNMP entity
uniquely within an SNMP domain. As an indispensable part of an SNMP entity, an
SNMP engine ID performs the function of sending, receiving and authenticating
SNMP messages, extracting PDUs, packet encapsulation and the communication with
SNMP applications.
Example
# Display the local engine ID of the current device.
<H3C> display snmp-agent
local-engineid
SNMP local EngineID:
00000009020000000C025808
The SNMP local EngineID field in the above
information represents the ID of the local SNMP engine.
Syntax
display snmp-agent community [ read | write ]
View
Any view
Parameter
read:
Displays the information about community names with read-only access right.
write:
Displays the information about community names with write access right.
Description
Use the display snmp-agent community
command to view the information about the currently configured community names
for SNMPv1 or SNMPv2c.
Example
# Display the currently configured community names.
<H3C> display snmp-agent
community
Community name: public
Group name: public
Storage-type: nonVolatile
Community name: private
Group name: private
Storage-type: nonVolatile
Table 1-1 Description
on the fields of the display snmp-agent community command
|
Field
|
Description
|
|
Community name
|
Community name
|
|
Group name
|
Group name
|
|
Storage-type
|
Storage type, including volatile,
nonVolatile, permanent, readOnly, and other.
|
Syntax
display snmp-agent group [ group-name ]
View
Any view
Parameter
groupname:
Name of the group whose SNMP information is to be displayed, ranging from 1 to
32 bytes.
Description
Use the display snmp-agent group
command to view the group information on the current switch, including group
name, security model, state of various views and storage models.
Example
# Display the information about the SNMP group named “hello”.
<H3C> display snmp-agent group
Group name: hello
Security model: v2c
noAuthnoPriv
Readview: ViewDefault
Writeview: <no
specified>
Notifyview :<no
specified>
Storage-type: nonvolatile
The following table describes the output
fields.
Table 1-2 Description
on the fields of the display snmp-agent group command
|
Field
|
Description
|
|
Group name
|
SNMP group
name
|
|
Security
model
|
Security model of that group, including
authorization and encryption (AuthPriv), authorization with no encryption
(AuthnoPriv), no authorization and no encryption (noAuthnoPriv).
|
|
Readview
|
Read-only MIB view name corresponding to
that group
|
|
Writeview
|
Write MIB view corresponding to that
group
|
|
Notifyview
|
Notify MIB view corresponding to that
group
|
|
Storage-type
|
Storage type, including volatile,
nonVolatile, permanent, readOnly and other.
|
Syntax
display snmp-agent mib-view [ exclude |
include | viewname view-name ]
View
Any view
Parameter
exclude:
Displays the SNMP MIB views of the excluded attribute.
include:
Displays the SNMP MIB views pf the included attribute.
viewname:
Displays the SNMP MIBs according to the view name.
view-name:
Name of the SNMP MIB view to be displayed. It is a character string, ranging
from 1 to 32 characters.
Description
Use the display snmp-agent mib-view
command to view the MIB view configuration information of the current Ethernet
switch.
Example
# Display the information about the currently configured MIB views.
<H3C> display snmp-agent
mib-view
View name: system
MIB Subtree:system
Subtree mask:
Storage-type: nonVolatile
View Type:included
View status:active
View name:ViewDefault
MIB Subtree:iso
Subtree mask:
Storage-type: nonVolatile
View Type:included
View status:active
View name:ViewDefault
MIB Subtree:snmpUsmMIB
Subtree mask:
Storage-type: nonVolatile
View Type:excluded
View status:active
View name:ViewDefault
MIB Subtree:snmpVacmMIB
Subtree mask:
Storage-type: nonVolatile
View Type:excluded
View status:active
View name:ViewDefault
MIB Subtree:snmpModules.18
Subtree mask:
Storage-type: nonVolatile
View Type:excluded
View status:active
Table 1-3 Description on the fields of the display snmp-agent mib-view
command
|
Field
|
Description
|
|
View name
|
View name
|
|
MIB Subtree
|
MIB subtree
|
|
Subtree mask
|
Subtree mask
|
|
Storage-type
|
Storage type
|
|
View Type
|
Includes or excludes access to an MIB
object
|
|
View status: active/inactive
|
Indicates the MIB view status: active or
inactive
|
Caution:
For the above
commands, when an SNMP agent is disabled, the system gives the prompt
“SNMP agent disabled”.
Syntax
display snmp-agent statistics
View
Any view
Parameter
None
Description
Use the display snmp-agent statistics command
to view the statistics on SNMP packets.
This command provides statistics for SNMP
operations.
Example
# Display the statistics on SNMP packets.
<H3C> display snmp-agent
statistics
9232 Messages delivered to the SNMP
entity
0 Messages which were for an
unsupported version
0 Messages which used a SNMP
community name not known
0 Messages which represented an
illegal operation for the community supplied
0 ASN.1 or BER errors in the
process of decoding
9266 Messages passed from the SNMP
entity
0 SNMP PDUs which had badValue
error-status
0 SNMP PDUs which had genErr
error-status
11 SNMP PDUs which had noSuchName
error-status
0 SNMP PDUs which had tooBig
error-status (Maximum packet size 2000)
33029 MIB objects retrieved
successfully
26 MIB objects altered successfully
714 GetRequest-PDU accepted and
processed
8514 GetNextRequest-PDU accepted
and processed
10 GetBulkRequest-PDU accepted and
processed
9230 GetResponse-PDU accepted and
processed
1 SetRequest-PDU accepted and
processed
34 Trap PDUs accepted and processed
Syntax
display snmp-agent sys-info [ contact | location | version ]*
View
Any view
Parameter
contact:
Displays the contact information of the current device.
location:
Displays the physical location of the current device.
version:
Displays the version information of the SNMP running in the system.
Description
Use the display snmp-agent sys-info command
to view the system contact (sysContact) string, physical location string, and
the current SNMP version.
This command displays all information if
you choose no parameter.
Example
# Display the sysContact string.
<H3C> display snmp-agent
sys-info contact
The contact person for this
managed node:
R&D Hangzhou,
H3C Technology. Co.,Ltd.
The above information indicates that the
contact of this device is R&D Hangzhou, H3C Technology. Co.,Ltd.
# Display the physical location string.
<H3C> display snmp-agent
sys-info location
The physical location of this
node:
Hangzhou China
The above information indicates that the
device location is Hangzhou China.
# Display the current SNMP version.
<H3C> display snmp-agent
sys-info version
SNMP version running in the
system:
SNMPv3
The above information indicates that the
current SNMP version is SNMPv3.
1.1.7 display snmp-agent usm-user
Syntax
display snmp-agent usm-user [ engineid engineid | username user-name
| group group-name ]*
View
Any view
Parameter
engineid:
SNMPv3 user information of the specified engine ID, which is of 10 to 64
hexadecimal numerals.
username:
Information about the specified SNMPv3 user, which is of 1 to 32 characters.
groupname:
Information about users in the specified group, whose name is of 1 to 32
characters.
Description
Use the display snmp-agent usm-user
command to view SNMP user information.
If you do not specify any parameter, all
the information will be displayed.
Example
# Display all user information.
<H3C> display snmp-agent
usm-user engineid 1234567890
User name: userv3aaaa
Group name: managev3group
Engine ID: 1234567890
Storage-type: nonVolatile
UserStatus: active
Table 1-4 describes the output fields.
Table 1-4 Description on the fields of the display snmp-agent usm-user command
|
Field
|
Description
|
|
User name
|
SNMP user name
|
|
Group name
|
Name of the group the SNMP user belongs
to
|
|
Engine ID
|
Character string identifying the SNMP
device
|
|
Storage-type
|
Storage type of SNMP information,
including volatile, nonVolatile, permanent, readOnly and other.
|
|
UserStatus
|
SNMP user status
|
Syntax
enable snmp trap updown
undo enable snmp trap updown
View
Ethernet port view/interface view
Parameter
None
Description
Use the enable snmp trap updown
command to enable the sending of port/interface linkUp and linkDown trap
messages.
Use the undo enable
snmp trap updown command to disable the sending of linkUp and linkDown trap messages.
By default, the sending of port/interface
linkUp and linkDown trap messages is enabled.
The enable snmp trap updown command
must be used in conjunction with the snmp-agent trap enable, snmp-agent
target-host commands. You can use the snmp-agent target-host
command to specify the hosts that can receive trap packets. To send trap
packets, you must configure at least one snmp-agent target-host
command.
Example
# Enable Ethernet 6/0/1 to send linkUp and
linkDown SNMP trap messages to community name “public” on the NMS
whose IP address is 10.1.1.1.
<H3C>system-view
System View: return to User View with
Ctrl+Z.
[H3C] snmp-agent trap enable
[H3C] snmp-agent target-host trap
address udp-domain 10.1.1.1 params securityname public
[H3C] interface ethernet6/0/1
[H3C-Ethernet6/0/1] enable snmp trap
updown
Syntax
snmp-agent
undo snmp-agent
View
System view
Parameter
None
Description
Use the snmp-agent command to enable
SNMP agents.
Use the undo snmp-agent command to
disable SNMP agents.
By default, SNMP agents are disabled.
Example
# Disable running SNMP agents.
<H3C> system-view
System View: return to User View with
Ctrl+Z.
[H3C] undo snmp-agent
Syntax
snmp-agent
community { read | write } community-name [ [ acl
acl-number | mib-view view-name ]*
undo snmp-agent
community community-name
View
System view
Parameter
read:
Indicates that MIB objects can only be read. Read-only communities can only
query device information.
write:
Indicates that MIB objects can be read and written. Read-write communities can
configure the device.
community-name: Community name, a character string of 1 to 32 characters.
view-name:
MIB view name, a character string of 1 to 32 characters.
acl-number:
Basic access control list (ACL) number specified by a community name, ranging
from 2000 to 2999.
Description
Use the snmp-agent community
command to configure community name and enable the access to SNMP.
Use the undo snmp-agent community
command to cancel the community name settings.
Example
# Configure the community name as comaccess and permit read-only access
by this community name.
<H3C>system-view
System View: return to User View with
Ctrl+Z.
[H3C] snmp-agent community read
comaccess
# Configure community name as mgr and permit read-write access.
[H3C] snmp-agent community write mgr
# Remove the community name comaccess.
[H3C] undo snmp-agent community
comaccess
Syntax
1)
For SNMPv1 and SNMPv2c
snmp-agent group { v1 | v2c } group-name [ read-view read-view
] [ write-view write-view ] [ notify-view notify-view
] [ acl acl-number ]
undo snmp-agent
group { v1 | v2c } group-name
2)
For SNMPv3
snmp-agent group v3 group-name [ authentication | privacy ] [
read-view read-view ] [ write-view write-view ] [notify-view
notify-view ] [ acl acl-number ]
undo snmp-agent
group v3 group-name [ authentication | privacy
]
View
System view
Parameter
v1:
Specifies SNMPv1.
v2c:
Specifies SNMPv2c.
v3:
Specifies SNMPv3.
groupname:
Group name, ranging from 1 to 32 bytes.
authentication: Configures to authenticate packets without encrypting them.
privacy:
Configures to authenticate and encrypt packets.
read-view:
Sets read-only view.
read-view:
Read-only view name, ranging from 1 to 32 bytes.
write-view:
Sets read-write view.
write-view:
Read-write view name, ranging from 1 to 32 bytes.
notify-view:
Sets notify view.
notify-view:
Notification view name, ranging from 1 to 32 bytes.
acl: Sets an
ACL.
acl-number:
ACL number, ranging from 2000 to 2099.
Description
Use the snmp-agent group command to
configure a new SNMP group, that is, to map SNMP users to an SNMP view.
Use the undo snmp-agent group
command to remove a specified SNMP group.
By default, an SNMP group configured using
the snmp-agent group v3 command does not authenticate or encrypt
packets.
Related command: snmp-agent mib-view,
snmp-agent usm-user.
Example
# Create SNMPv3 group named hello.
<H3C>system-view
System View: return to User View with
Ctrl+Z.
[H3C] snmp-agent group v3 hello
Syntax
snmp-agent local-engineid engineid
undo snmp-agent local-engineid
View
System view
Parameter
engineid:
Engine ID, a character string of 10 to 64 hexadecimal numbers. Two hexadecimal
characters form an octet.
Description
Use the snmp-agent local-engineid
command to set the engine ID of the local SNMP entity.
Use the undo snmp-agent local-engineid command to restore the default
settings.
By default, the engine ID is
"Enterprise number + device information". Device information is
determined by products. It can be an IP address, MAC address or user-defined
string in hexadecimal format.
Related command: snmp-agent usm-user.
Example
# Configure the local device name as 1234512345.
<H3C>system-view
System View: return to User View with
Ctrl+Z.
[H3C] snmp-agent local-engineid
1234512345
1.1.13 snmp-agent mib-view
Syntax
snmp-agent mib-view { included | excluded } view-name oid-tree
undo snmp-agent mib-view view-name
View
System view
Parameter
included: Includes
the MIB subtree.
excluded:
Excludes the MIB subtree.
view-name: View name, a character string of
1 to 32 characters.
oid-tree:
OID MIB subtree of the MIB object subtree. It is a character string of 1 to 255
characters. It can be a character string of the variable OID (such as 1.4.5.3.1),
or a variable name (such as system). The character string can include wildcards
(such as 1.4.5.*.*.1).
Description
Use snmp-agent mib-view command to
create or update MIB view information, in order to limit the MIB objects to be
accessed by the NMS.
Use the undo snmp-agent mib-view command
to cancel the current setting.
By default, the view name is ViewDefault
and OID is 1.
Related command: snmp-agent group.
Example
# Create an SNMP MIB view containing all the objects of MIB-II.
<H3C>system-view
System View: return to User View with
Ctrl+Z.
[H3C] snmp-agent mib-view included
mib2 1.3.6.1.2.1
Syntax
snmp-agent packet max-size byte-count
undo snmp-agent packet max-size
View
System view
Parameter
byte-count:
Maximum size of the SNMP packet (in bytes) that the agent can send/receive,
ranging from 484 to 17,940.
Description
Use the snmp-agent packet max-size
command to set the maximum size of the SNMP packet that the agent can
send/receive.
Use undo snmp-agent packet max-size command
to restore the default size of SNMP packets.
The maximum size of the SNMP packet that
the agent can send/receive vary with networking conditions.
Example
# Set the maximum size of the SNMP packet that the agent can send/receive
to 1,042 bytes.
<H3C>system-view
System View: return to User View with
Ctrl+Z.
[H3C] snmp-agent packet max-size 1042
Syntax
snmp-agent sys-info { contact sys-contact | location sys-location
| version { { v1 | v2c | v3 }* | all } }
undo snmp-agent sys-info { { contact | location }* | version { { v1
| v2c | v3 }* | all } }
View
System view
Parameter
contact:
Sets the contact for system maintenance.
sysContact:
Character string describing contact information for system maintenance.
location:
Sets the geographical location of the device.
sys-location:
Geographical location of the device.
version: Specifies version of the running SNMP.
v1:
Specifies SNMPv1.
v2c:
Specifies SNMPv2c.
v3:
Specifies SNMPv3.
all:
Specifies all SNMP versions, including SNMPv1, SNMPv2c, SNMPv3.
Description
Use the snmp-agent sys-info command
to set system information, including geographical location of the device,
contact information for system maintenance and version information of running
SNMP.
Use the undo snmp-agent sys-info
location command to remove the current configuration.
If the device fails, the device maintainer
can use contact information to contact the manufacturer.
By default, the contact information is
"R&D Hangzhou, H3C Technology. Co.,Ltd.", the physical
location is "Hangzhou China", the SNMP version is SNMPv3.
Related command: display snmp-agent
sys-info.
Example
# Set contact information for system maintenance as Dial System Operator
# 1234.
<H3C> system-view
System View: return to User View with
Ctrl+Z.
[H3C] snmp-agent sys-info contact
Dial System Operator # 1234
Syntax
snmp-agent target-host trap address udp-domain { ip-address }
[ udp-port port-number ] params securityname security-string
[ v1 | v2c | v3 [authentication | privacy ]
]
undo snmp-agent
target-host ip-address securityname security-string
View
System view
Parameter
trap:
Specifies the host to be a Trap host.
address:
Specifies the address of the destination host for transmitting SNMP messages.
udp-domain:
Specifies to transmit trap messages to the target host through UDP.
ip-address:
IPv4 address of the host receiving trap messages.
port-number:
Number of the port receiving trap messages, ranging from 0 to 65,535 characters.
params:
Specifies SNMP target host information , which is to be used in SNMP message
generation.
security-string: Community name for SNMPv1 and SNMPv2c, or SNMPv3 user name,
ranging from 1 to 32 characters.
v1:
Specifies SNMPv1.
v2c:
Specifies SNMPv2c.
v3:
Specifies SNMPv3.
authentication: Configures to authenticate the packets without encrypting them.
privacy:
Configures to authenticate and encrypt the packets.
Description
Use snmp-agent target-host command
to configure the destination of SNMP trap messages.
Use undo snmp-agent target-host
command to cancel the current setting.
The snmp-agent target-host command
must be in conjunction with the snmp-agent trap enable command or the enable
snmp trap updown command on the device to enable the device to send trap
messages.
1)
Use the snmp-agent trap enable command or
the enable snmp trap updown command to define trap messages allowed to
be sent (all trap messages can be sent by default).
2)
Use the snmp-agent target-host command to
set the address of the destination host receiving SNMP trap messages.
Related command: snmp-agent trap enable,
snmp-agent trap source, and snmp-agent trap life.
Example
# Enable sending SNMP trap messages to the community name public on 10.1.1.1.
<H3C> system-view
System View: return to User View with
Ctrl+Z.
[H3C] snmp-agent trap enable standard
[H3C] snmp-agent target-host trap
address udp-domain 10.1.1.1 params securityname public
Syntax
snmp-agent trap enable [ bgp [ backwardtransition
| established ]* | configuration | flash | ospf [ process-id
] [ ospf-trap-list ] | standard [ authentication |
coldstart | linkdown | linkup | warmstart ]* | system
| vrrp [ authfailure | newmaster ] ]
undo snmp-agent
trap enable [ bgp [ backwardtransition | established
]* | configuration | flash | ospf [ process-id ] [ ospf-trap-list
] | standard [ authentication | coldstart | linkdown |
linkup | warmstart ]* | system | vrrp [ authfailure
| newmaster ] ]
View
System view
Parameter
bgp [ backwardtransition
| established ]*: Configures to send trap messages about BGP.
configuration: Configures to send trap messages about configurations.
flash:
Configures to send trap messages about Flash.
ospf [ process-id
] [ ospf-trap-list ]: Configures to send trap messages about the OSPF
protocol. The process-id argument represents a process ID. The ospf-trap-list
argument represents a list of trap messages allowed to be sent.
standard [
authentication ] [ coldstart ] [ linkdown ] [ linkup ]
[ warmstart ]: Configures to send SNMP standard notifications or trap
messages.
authentication: Configures to send trap messages about SNMP authentication when
authentication fails.
coldstart:
Configures to send trap messages about cold restart when the switch restarts.
linkdown:
Configures to send trap messages about SNMP linkdown when a port is down.
linkup:
Configures to send trap messages about SNMP linkup when a port is up.
warmstart:
Configures to send trap messages about SNMP warmstart when SNMP is rebooted.
system:
Configures to send trap messages about H3C-SYS-MAN-MIB (a private MIB).
vrrp [ authfailure
| newmaster ]: Configures to send trap messages about VRRP.
Description
Use the snmp-agent trap enable
command to enable the device to send trap messages.
Use the undo snmp-agent trap enable
command to disable the device from sending trap messages.
By default, the device does not send trap
messages.
The snmp-agent trap enable
command must be used in conjunction with the snmp-agent target-host
command. The snmp-agent target-host command specifies which hosts can
receive Trap messages. However, to send trap messages, you must use the snmp-agent
target-host command for once at least.
Example
# Enable to send the trap messages about SNMP authentication failure to
community name public on 10.1.1.1.
<H3C>system-view
System View: return to User View with
Ctrl+Z.
[H3C] snmp-agent trap enable standard
authentication
[H3C] snmp-agent target-host trap
address udp-domain 10.1.1.1 params securityname public
Syntax
snmp-agent trap life seconds
undo snmp-agent trap life
View
System view
Parameter
seconds:
Aging time, in seconds, ranging from 1 to 2,592,000.
Description
Use the snmp-agent trap life command
to set aging time for trap messages. The trap messages beyond the aging time
are discarded.
Use the undo snmp-agent trap life
command to restore the default aging time for trap messages.
By default, the aging time of SNMP trap
messages is 120 seconds.
After the specified aging time has elapsed,
the system drops the trap message.
Related command: snmp-agent trap enable,
and snmp-agent target-host.
Example
# Set the aging time for trap messages as
60 seconds.
<H3C>system-view
System View: return to User View with
Ctrl+Z.
[H3C] snmp-agent trap life 60
Syntax
snmp-agent trap queue-size size
undo snmp-agent trap queue-size
View
System view
Parameter
size: Length
of the queue of trap messages, ranging from 1 to 1,000.
Description
Use the snmp-agent trap queue-size
command to configure the length of the queue of Trap messages sent to the
destination host.
Use the undo snmp-agent trap queue-size
command to restore the default value.
By default, the queue length is 100, that
is, the queue can hold up to 100 trap messages sent to the destination host.
Related command: snmp-agent trap enable,
snmp-agent target-host, and snmp-agent trap life.
Example
# Configure the queue length to 200.
<H3C>system-view
System View: return to User View with
Ctrl+Z.
[H3C] snmp-agent trap queue-size 200
Syntax
snmp-agent trap source { interface-type interface-number }
undo snmp-agent trap source
View
System view
Parameter
interface-type: Interface type.
interface-number: Interface number.
Description
Use the snmp-agent trap source
command to configure the source address for sending trap message.
Use the undo snmp-agent trap source
command to cancel the source address for sending trap message.
The SNMP trap message sent from a server
has a source IP address no matter which interface the trap message is sent
from.
By default, SNMP chooses an outgoing
interface.
You can configure this command to trace a
specific event using the source address of a trap message.
Before setting the
IP address of an interface as the source address of the sent Trap messages, you
must configure an IP address for the interface.
Related command: snmp-agent trap enable,
and snmp-agent target-host.
Example
# Configure the IP address of VLAN interface 1 as the source address for
sending trap messages.
<H3C>system-view
System View: return to User View with
Ctrl+Z.
[H3C] snmp-agent trap source
Vlan-interface 1
Syntax
1)
For SNMPv1 and SNMPv2c
snmp-agent usm-user { v1 | v2c } user-name group-name [ acl
acl-number ]
undo snmp-agent usm-user { v1 | v2c } user-name group-name
2)
For SNMPv3
snmp-agent usm-user v3 user-name group-name [ authentication-mode
{ md5 | sha } auth-password [ privacy-mode des56
priv-password ] ] [ acl acl-number ]
undo snmp-agent usm-user v3 user-name group-name { local | engineid
engineid-string }
View
System view
Parameter
v1:
Configures to use SNMPv1 security model.
v2c:
Configures to use SNMPv2c security model.
v3: Configures
to use SNMPv3 security model.
user-name:
User name, ranging from 1 to 32 bytes.
group-name:
Group name corresponding to that user, ranging from 1 to 32 characters.
authentication-mode: Specifies that authentication is required in the security level.
Absence of this parameter indicates that neither authentication nor encryption
is performed.
md5:
Specifies the authentication protocol as HMAC MD5 algorithm.
sha:
Specifies the authentication protocol as HMAC SHA algorithm.
auth-password: Authentication password, a character string of 1 to 64 characters.
privacy-mode:
Specifies that encryption is required in the security level.
des56:
Specifies the encryption protocol as DES.
priv-password: Encryption password, a character string of 1 to 64 characters.
acl-number: Basic ACL number, ranging from 2000 to 2999.
local:
Represents a local entity user.
engineid-string:
Engine ID related to the user, ranging from 10 to 64 hexadecimal numerals.
Description
Use the snmp-agent usm-user command
to add a new user to an SNMP group.
Use the undo snmp-agent usm-user
command to remove a user from the SNMP group.
While using SNMPv3, SNMP engineID is
required for authentication when you configure a remote user for an agent. If
you change engineID after configuring a user, the user corresponding to the
original engineID is not effective.
For SNMPv1 and SNMPv2c, this command will
add a new community name. For SNMPv3, it will add a new user to an SNMP group.
Related command: snmp-agent group, snmp-agent
community, and snmp-agent local-engineid.
Example
# Add a user named John to the SNMPv3 group Johngroup. Specify that
authentication is required and configure to authenticate using HMAC-MD5
algorithm with authentication password being hello.
<H3C> system-view
System View: return to User View with
Ctrl+Z.
[H3C] snmp-agent group v3 Johngroup
[H3C] snmp-agent usm-user v3 John
Johngroup authentication-mode md5 hello
