Hitachi GR2000 Series manual Filter function on the first input side stage

	Filtering/QoS Information
Filter function on the first input side stage
The first input side stage executes the following functions:
Filtering:	Relays or discards the packet in accordance with the flow
	detecting condition.
DSCP rewriting:	Rewrites the DSCP field in accordance with the flow detecting
	condition.
Policy routing:	Transmits the packet to the specified output destination in
	accordance with the flow detecting condition.

	￿	Constituting definition command		1, 2 flow filters (filter flow information)
		QoS function on the second input side stage (flow control part)
		The second input side stage executes the following functions:
		Priority determination:
			Determines the priority of the packet that agrees with the flow
			detecting condition.
		DSCP rewriting:	Rewrites the DSCP field of the packet that agrees with the flow
			detecting condition.
		Contract band monitoring:
			Monitors if the packet that agrees with the flow detecting
			condition is following or violating the contract band.
		Constituting definition command		1, 3 flow filters (QoS flow information)
		Filter function on the first output side stage
		The first input side stage executes the following functions:
	￿	Filtering:	Relays or discards￿		the packet in accordance with the flow
			detecting condition.
		DSCP rewriting:	Rewrites the DSCP field in accordance with the flow detecting
			condition.
		Connection branching:
			Selects and transmits the packet to the specified DLCI/VC in
			accordance with the flow detecting condition.
		Constituting definition command		1, 2 flow filters (filter flow information)
		Filter function on the second output side stage (flow control part)
		The second output side stage executes the following functions:
		Priority determination:
	￿		Determines the￿priority of the packet that agrees with the flow
			detecting condition.
		DSCP rewriting:	Rewrites the DSCP field of the packet that agrees with the flow
			detecting condition.
		Contract band monitoring:
			Monitors if the packet that agrees with the flow detecting
			condition is following or violating the contract band.
		EXP rewriting:	Rewrites the EXP field of the packet that agrees with the flow
			detecting condition.
GR2K-GA-0014				￿	1-3
Ver. 07-02	￿