Patton electronic 29XX User Manual download pdf (Page 314)

Using SNMP with the Access Server 314

Access Server Administrators’ Reference Guide C • Technical Reference

Finding the section of the MIB tree in which the SNMP parameter resides

Refer to figure 128 on page 315 and look at the Model 2960 MIB tree. There two sections in the tree:

• The Internet standards section, identified by the shaded box surrounding it. In this section are MIBs (Man-

agement Information Base) that deal with Internet standards such as SNMP, IP, ICMP, Frame-Relay, and

Ethernet. It contains parameters that could potentially be on any machine that implements these features.

• The private Patton MIB—In this section are MIB variables that are specific to Patton products. This section

is further divided into:

– Those variables valid for a group of products

– Those variables valid for a Model 29XX/31XX Series: m3120 node

Active Calls is a product specific parameter.

Now, the OID can start to be built up. Choose the nodes that will take you to the private Patton MIB (these

nodes are shaded red in

figure 128 on page 315). All private Patton MIB variables will begin with this series

(1.3.6.1.4.1.1768).

Finding the branch where the SNMP parameter resides

On the SNMP web page are links to the Patton MIB definitions. Most of the MIBs are common to all Patton

access server products, therefore the parameter is likely to be found in the Enterprise MIB. Click on Enterprise

MIB and open the file. Search for the SNMP name diActive that maps to Active Calls. The following entry is

listed:

diActive OBJECT-TYPE

SYNTAX INTEGER

ACCESS read-write

STATUS mandatory

DESCRIPTION "The total number of active calls."

::= { calldialin 25 }

The entry includes the name, the type, the access available, and the description of the parameter. The last line

gives another part of the OID. There the diActive parameter is identified as parameter 25 under the calldialin

branch. Looking at the MIB tree, the calldialin node is labeled as branch 5 (shaded green in

figure 128 on

page 315).

Note

For the purpose of this example, figure 128 on page 315 shows parameter

identifier 25 (diActive). Normally, a MIB tree shows only branches and

nodes, it will not show the myriad of parameters that come under each node.

Therefore, while you can use the MIB diagrams in

B, “MIB trees” on page

304 to map out the OID through the Enterprise node level, you will need to

refer to section “Using SNMP with the Access Server” on page 313 for help

in determining where the parameter you are interested in resides.

The calldialin node is immediately under the Patton branch, therefore the OID is 1.3.6.1.4.1.1768.5.25, as

shown in

figure 128 on page 315. This new OID is used by the network management software to query the

RAS for the total number of active calls.

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