SNMP & Avaya IP phones

An introduction to SNMP and Avaya 46XX IP phones.

Simple Network Management Protocol û SNMP can be used to retrieve information about Avaya 46XX IP phones. There are many vendors selling SNMP tools that will retrieve SNMP information.

SNMP - The Internet standard protocol developed to manage and retrieve information on nodes (servers, workstations, routers, switches, hubs & IP Phones etc.) on an IP network.
MIB - A collection of SNMP Object ID's (OID) that are usually related
OID - It is a unique identifier for an item of information that is part of a MIB.
For more information on SNMP go to http://www.snmplink.org/

Avaya provides a MIB for the 46XX IP phones. The MIB file is called 46xxmib18.mib û it is included in Avaya IP Telephone Release 091503 and TFTP Server.

This FAQ uses a free SNMP tool called SNMPView û ( download @ http://www.snmpview.de/snmpview.zip ). I chose this tool because of itÆs price û free and it is a simple way to introduce yourself to SNMP. This tool could be used to diagnose a problem with an IP phone. The site is in German but SNMPView has documentation in English.

Download SNMPView and install and read instructions.

Modify file - devices.txt
Example entry
111.111.111.1111;46XX IP phone;public;0
IP Address of the phone; Name given to the Device; the Community name is public; OID table number is zero

Modify file û snmpview.cfg with Notepad
Read through this file. Use this file to set refresh rate, logging options, email notification etc.

Scroll down to [Header]
Copy / Paste this info
[Header]
0=Location
1=IP Address
2=Uptime
3=Model
4=Current Call Server
5=Ethernet Speed Port 1
6=Duplex Setting Port 1
7=Router Address
8=Current Script
9=Layer 3 Audio DSCP
10=Layer 3 Signaling DSCP
11=Layer 2 Audio 802.1q
12=Layer 2 Signaling 802.1q
13=Curent Phone Extension
14=Current Endpoint IP Address
15=Current Receive Codec
16=Current Transmit Codec
17=Current Jitter Packet Count
18=Current Transmit Buffer msec
19=Current Farend 802.1q
20=Current Farend DSCP
21=RTCP Control Flag
22=RTCP Flowrate

Scroll down to [OID0]
Copy/Paste this info
[OID0]
1=1.3.6.1.4.1.6889.2.69.1.1.11.0
2=2.1.1.3.0
3=1.3.6.1.4.1.6889.2.69.1.1.2.0
4=1.3.6.1.4.1.6889.2.69.1.1.4.0
5=1.3.6.1.4.1.6889.2.69.1.1.10.0
6=1.3.6.1.4.1.6889.2.69.1.1.45.0
7=1.3.6.1.4.1.6889.2.69.1.1.15.0
8=1.3.6.1.4.1.6889.2.69.1.1.22.0
9=1.3.6.1.4.1.6889.2.69.1.1.26.0
10=1.3.6.1.4.1.6889.2.69.1.1.27.0
11=1.3.6.1.4.1.6889.2.69.1.1.29.0
12=1.3.6.1.4.1.6889.2.69.1.1.30.0
13=1.3.6.1.4.1.6889.2.69.1.4.9.0
14=1.3.6.1.4.1.6889.2.69.1.4.3.0
15=1.3.6.1.4.1.6889.2.69.1.4.5.0
16=1.3.6.1.4.1.6889.2.69.1.4.6.0
17=1.3.6.1.4.1.6889.2.69.1.4.7.0
18=1.3.6.1.4.1.6889.2.69.1.4.8.0
19=1.3.6.1.4.1.6889.2.69.1.4.10.0
20=1.3.6.1.4.1.6889.2.69.1.4.11.0
21=1.3.6.1.4.1.6889.2.69.1.4.12.0
22=1.3.6.1.4.1.6889.2.69.1.4.13.0

Start SNMPView and you will begin to collect SNMP information on your Avaya 46XX IP phone

Let examine what those entries mean. Look at entry 3.
[Header] 3=Model û This is a text description of the OID
[OID0] 3=1.3.6.1.4.1.6889.2.69.1.1.2.0 û This is the OID assigned in the MIB for Model Identifier
Look on page 1 of 46xxmib18.mib look for the term ôendptMODELö

OID are hierarchically in nature

OID Breakout
iso(1)
org(3)
dod(6)
internet(1)
private(4)
enterprises(1)
avaya(6889)
avayaMibs(2)
ipEndpointMibs(69)
lsg(1)
endpointID(1)
endptID(2)
totalspecification(0)

Look at file - oids.txt for other OID's. If no information is gathered using these OID's try adding a .1 to the end for info on Ethernet port 1 and .2 for Ethernet port 2

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