Hitachi GR2000 Series Configuration Commands page 45

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