11B-8 Installationand Maintenance Volume
Octel 200/300 S.4.1 PB60019−01
-The IP address of the name server. System Parameter 233 — LAN: NAME SERVER IP ADDRESS
-The ASCII name of the SNMP manager. System Parameter 236 — LAN: SNMP MANAGER HOST
ASCII NAME
When the same hardware error is logged a sufficient number of times (the number is predefined), an
alarm outcall is made. To notify the SNMP manager of the first occurrence of this alarm outcall, the
following system parameter must be enabled:
-System Parameter 242 — LAN: SEND TRAP TO THE SNMP MANAGER ONALARM
The default setting for System Parameter 242 is NO. If the SNMP manager system is not configured,
System Parameter 242 cannot be set to YES, and the following message is given:
Please configure system parameter 235, or 236 and 233, for the SNMP
manager system first.
For purposes of authentication and providing access privileges, the SNMP manager and agents exchange
SNMP READ COMMUNITY and SNMP READ WRITE COMMUNITY names. As the names suggest,
members of a READ COMMUNITY can only “read” the SNMP variables. Members of a READ WRITE
COMMUNITY can not only “read” the SNMP variables through SNMP queries but also modify those
SNMP variables that are modifiable. The following system parameters are used to specify the READ and
READ WRITE communities:
-System Parameter 239 — LAN: SNMP READ COMMUNITY
-System Parameter 240 — LAN: SNMP READ WRITE COMMUNITY
The character strings in System Parameter 239 and System Parameter 240 are transmitted between the
Octel 200/300 and the SNMP manager application to verify each other’s access to the data being
requested in a query. If the character strings do not match, the queries will fail.
In the SYSTEM PARAMETERTable in UPDATE, even if a string is entered in mixed upper- and
lowercase, it is stored in the system as uppercase. However, when the string is transmitted to the LAN
card, it is then converted to all lowercase. It is this lowercase string that must match the community read
and write strings, as configured in the SNMP manager.
The following examples show this conversion process.
.M SYS 239
Enter the SNMP Read Community Name.
(1−19 characters, empty line = PA_LAB_READ)
MOD:PA_Lab_Read
Enter system parameter index.
MOD:240
Enter the SNMP Read Write Community Name.
(1−19 characters, empty line = PA_LAB_WRITE)
MOD:PA_Lab_Write
Enter system parameter index.
MOD:
.L SYS 239−240
INDEX VALUE (LST?MOD) PARAMETER NAME:
239 PA_LAB_READ L/M LAN: SNMP READ COMMUNITY
240 PA_LAB_WRITE L/M LAN: SNMP READ WRITE COMMUNITY