User's Manual

001-5008-000 rev5_2.doc Page 61

network manager and the management system. The agent provides the interface between

the manager and the physical devices being managed (7.4). SNMP uses basic messages

(such as GET, GET-NEXT, SET, and TRAP) to communicate between the manager and the

agent.

MANAGER

AGENT

Management Database

Managed Object

Messages

Network

Protocol

Management System Managed Element

Human Network

Manager

Figure 7.4 - SNMP: manager/agent model

Traps: Traps (or alarms) can be automatically generated by the ViPR radio modem

whenever the forward or reverse power goes out of specification. These traps can be sent to

a user specified IP address or addresses. Use the following steps to enable traps:

1) Enable SNMP (Setup (Advanced) – IP Services)

2) Enter IP Addresses into Trap IP List. (Setup (Advanced) – IP Services)

3) Enable Individual Traps. (Setup (Advanced) – Alarm Reporting)

Trap IP List: This list shows the user programmed IP addresses where the ViPR will send

SNMP traps. To add an IP Address to the list, select the 'Add' radio button, enter the IP

Address into the text box, and then click the 'Apply' button at the bottom of the page.

When the page is refreshed the new IP address will appear in the Trap IP List. To delete an

IP Address from the list, select the 'Delete' radio button, enter the IP Address to delete into

the text box, and then click the 'Apply' button at the bottom of the page.

The ViPR is compatible with SNMP version 2.

 MIB

The manager and agent use a Management Information Base (MIB), a logical, hierarchically

organized database of network management information. MIB comprises a complete

collection of objects used to manage entities in a network. A long numeric tag or object

identifier (OID) is used to distinguish each variable uniquely in the MIB and SNMP

messages.

 ViPR MIB File

Each ViPR unit firmware package is bundled with three MIB files (found inside mibs.zip file):

• dataradio-regs.mib: contains a top level set of managed object definitions aimed at

managing Dataradio products

• 1213.mib: contains a set of managed object definitions aimed at managing TCP/IP-

based internets

• ipr.mib: contains a set of managed object definitions aimed at managing Dataradio

ViPR modems