Polycom 3725-77601-001H manual ContextEngineID for SNMPv3

Polycom CMA System Operations Guide

Setting	Description
Port	Specifies the port that the CMA system uses for
	general SNMP messages. By default, the CMA
	system uses port 161.
Community	For SNMPv2c, specifies the context for the
	information, which is the SNMP group to which the
	devices and management stations running SNMP
	belong.
	The CMA system has only one valid context—by
	default, public—which is identified by this
	Community name. The CMA system will not
	respond to requests from management systems that
	do not belong to its community.
V3 Context Name	For SNMPv3, specifies the context for the
	information. The CMA system has only one valid
	context, which is identified by contextName (in our
	case—an empty string) and contextEngineID.
V3 Local Engine Id	For SNMPv3, displays the CMA system
	contextEngineID for SNMPv3.
Security User	For SNMPv3, specifies the security name required to
	access a monitored MIB object.
Auth Type	For SNMPv3, specifies the authentication protocol.
	These protocols are used to create unique
	fixed-sized message digests of a variable length
	message.
	The CMA system implements communication with
	authentication and privacy (the authPriv security
	level as defined in the USM MIB).
	Possible values for authentication protocol are:
	• MD5—Creates a digest of 128 bits (16 bytes).
	• SHA—Creates a digest of 160 bits (20 bytes).
	Both methods include the authentication key with the
	SNMPv3 packet and then generate a digest of the
	entire SNMPv3 packet.
Auth Password	For SNMPv3, specifies the authentication password
	that is appended to the authentication key before it is
	computed into the MD5 or SHA message digest.

418 Polycom, Inc.