Extreme Networks ExtremeWare XOS 10.1, Manual

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Using SNMP
ExtremeWare XOS 10.1 Concepts Guide 45
relationship between a MIB view and an access group. The users of the access group can then read,
write, or receive notifications from the part of the MIB defined in the MIB view as configured in the
access group.
A view name, a MIB subtree/mask, and an inclusion or exclusion define every MIB view. For example,
there is a System group defined under the MIB-2 tree. The Object Identifier (OID) for MIB-2 is 1.3.6.1.2,
and the System group is defined as MIB-2.1.1, or directly as 1.3.6.1.2.1.1.
To define a MIB view which includes only the System group, use the following subtree/mask
combination:
1.3.6.1.2.1.1 / 1.1.1.1.1.1.1.0
The mask can also be expressed in hex notation (this is used for the ExtremeWare XOS CLI):
1.3.6.1.2.1.1 / fe
To define a view that includes the entire MIB-2, use the following subtree/mask:
1.3.6.1.2.1.1 / 1.1.1.1.1.0.0.0
which, on the command line, is:
1.3.6.1.2.1.1 / f8
When you create the MIB view, you can choose to include the MIB subtree/mask, or to exclude the MIB
subtree/mask. To create a MIB view, use the following command:
configure snmpv3 add mib-view {hex} <view_name> subtree <object_identifier>
{/<subtree_mask>} {type [included | excluded]} {volatile}
After the view has been created, you can repeatedly use the
configure snmpv3 add mib-view
command to include and/or exclude MIB subtree/mask combinations to precisely define the items you
wish to control access to.
In addition to the user-created MIB views, there are three default views. They are of storage type
permanent and cannot be deleted, but they can be modified. The default views are: defaultUserView,
defaultAdminView, and defaultNotifyView. To show MIB views, use the following command:
show snmpv3 mib-view {{hex} <view_name> {subtree <object_identifier>}}
To delete a MIB view, use the following command:
configure snmpv3 delete mib-view [all-non-defaults | {{hex} <view_name> {subtree
<object_identifier>}}]
MIB views which are being used by security groups cannot be deleted.
Notification
SNMPv3 notification is an enhancement to the concept of SNMP traps. Notifications are messages sent
from an agent to the network manager, typically in response to some state change on the agent system.
With SNMPv3, you can define precisely which traps you want sent, to which receiver by defining filter
profiles to use for the notification receivers.
To configure notifications, you will configure a target address for the process that receives the
notification, a target parameters name, and a list of notification tags. The target parameters specify the
security and message processing models to use for the notifications to the target. The target parameters