H3C S7500E Series Ethernet Switches Operation Manual

Operation Manual – QoS
H3C S7500E Series Ethernet Switches Chapter 2 Traffic Classification, TP, and LR Configuration
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z Forwarding conforming packets or non-conforming packets.
z Dropping conforming or non-conforming packets.
z Marking a conforming packet with a new 802.1p precedence value and forwarding
the packet.
z Marking a conforming packet with a new IP precedence value and forwarding the
packet.
z Marking a conforming packet or a non-conforming packet with a new DSCP
precedence value and forwarding the packet.
2.3.5 LR
Port rate limiting refers to limiting the total rate of inbound or outbound packets on a
port.
Port rate limiting can be implemented through token buckets. That is, if you perform
port rate limiting configuration for a port, the token bucket determines the way to
process the packets to be sent by this port or packets reaching the port. Packets can be
sent or received if there are enough tokens in the token bucket; otherwise, they will be
dropped.
Compared to TP, port rate limiting applies to all the packets passing a port. It is a
simpler solution if you want to limit the rate of all the packets passing a port.
2.4 LR Configuration
2.4.1 LR Configuration Procedure
Follow these steps to configure LR:
To do… Use the command… Remarks
Enter system view
system-view
—
Enter
port
view
interface interface-type
interface-number
Enter
interface
view or
port
group
view
Enter
port
group
view
port-group { manual
port-group-name |
aggregation agg-id }
Enter either view.
For Ethernet interface
view, the following
configuration takes effect
only on the current
interface. For entering port
group view, the following
configuration takes effect
on all the ports.
Configure LR
qos lr outbound cir
committed-information-rate
[ cbs committed-burst-size ]
Required