Polycom 40/0 manual Configure SNMP

System Configuration

Parameter	Description
Enable QoS for Signaling and	Enable configuration of the QoS settings. if not selected, the system uses
Media	the default QoS settings.
Type	DiffServ and Precedence are two methods for encoding packet priority. The
	priority set here for audio and video packets should match the priority set in
	the network routers.
	• Differv: Select when the network router uses Differv for priority
	encoding. If this option is selected, enter values in the Audio and Video
	fields. The value range is 0-63.
	Note: If you select DiffServ but your router does not support this
	standard, IP packets queue on the same communication links with data
	packets. This non-prioritized queueing greatly increases the latency and
	jitters in their delivery and can negatively impact performance.
	• Precedence: Select this option when the network router uses
	Precedence for priority encoding, or when you are not sure which
	method is used by the router. Precedence should be matched with None
	in the ToS field. The value range is 0-5. If this option is selected, enter
	values in the Audio and Video fields. The value range is 0-5.
	Note: Precedence is the default mode as it is capable of providing
	priority services to all types of routers and is currently the most common
	mechanism.
Audio / Video	Specify the priority for audio and video IP packets.
	The recommended priority is 4 for audio and video to ensure that the packet
	delay for both is the same, that audio and video packets are synchronized,
	and to ensure lip and audio synchronization (lip sync).
Control	Specify the priority for controlling packets.
ToS	Select the ToS (Type of Service) that defines optimization tagging for routing
	the conference audio and video packets.
	• Delay: The recommended default for video conferencing: prioritized
	audio and video packets tagged with this definition are delivered with
	minimal delay.
	• None: No optimization definition is applied. This is a compatibility mode
	in which routing is based on Precedence priority settings only. Select
	None if you do not know which standard your router supports.

3Click OK. The server restarts to apply your changes.

QoS settings applies to SIP and H.323 calls only, it does not apply to streaming.

Configure SNMP

Your system provides a standard SNMP (Simple Network Management Protocol) interface which supports SNMP version 1, version 2, and version 3 queries with confidentiality, authentication, and integrity functions

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