CTC Union FMUX-01, User Manual

Page: 51 / 59

Chapter 6. SNMP Operation
6-3
FMUX-01Mar 2003
Under this scheme, the path to CTC Union's Enterprise branch would be:
iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).ctcu(4756)
Enterprise-specific MIB's are published and distributed by their creators, who are
responsible for their contents. Specific information regarding the CTC Union's sub-tree are
available from CTC Union's Research and Development Division.
The MIB supported by the
MULTIPLEXER UNIT
SNMP Agent follows RFC 1158
(MIB-II standard).
6.5 SNMP Communities
To enable the delimitation of management domains, SNMP uses "communities". Each
community is identified by a name, which is an alphanumeric string of up to 255 characters
defined by the user. Any SNMP entity (this term includes both managed nodes and
management stations) is assigned by its user a community name. In parallel, the user
defines for each SNMP entity a list of the communities which are authorized to
communicate with it, and the access rights associated with each community (this is the
SNMP community name table of the entity).
In general, SNMP agents support two types of access rights:
Read-only the SNMP agent accepts and processes only SNMP
getRequest
and getNextRequest commands from management stations
which have a read-only community name.
Read-write the SNMP agent accepts and processes all the SNMP
commands received from a management station with a read-write
community name. SNMP agents are usually configured to send traps to
management stations having read-write communities.
6.6 Configuring the SNMP Agent
The agent for the MULTIPLEXER UNIT resides in the SNMP option card installed
in the MULTIPLEXER UNIT . Configuration of the agent is accomplished via the RS-232
Control Port of the MULTIPLEXER UNIT . From the Define System Parameter menu
select "9", SNMP Agent.