R3303-HP HSR6800 Routers ACL and QoS Command Reference

To perform rate limiting for a single IP address, use the qos car acl command in interface view.

When you apply an IP network segment-based CAR list to an interface with the qos car command, the

CIR you defined takes different meanings depending on the configuration of the per-address keyword

and the shared-bandwidth keyword for the CAR list.

• If the per-address keyword is not specified, the CIR specifies the total bandwidth for the network

segment and will be allocated to each IP address based on its traffic size.

• If the per-address keyword is specified but the shared-bandwidth keyword is not specified, the CIR

specifies the bandwidth of each IP address, and the bandwidth cannot be shared by the other IP

addresses within the network segment.

• If both the per-address keyword and the shared-bandwidth keyword are specified, the CIR

specifies the total shared bandwidth for the network segment, and will be dynamically and evenly

allocated to the traffic by IP address.

For example, apply a CAR list to an interface with 10 Mbps of total bandwidth to perform per-address

rate limiting for the network segment 192.168.0.1 to 192.168.0.100. If the shared-bandwidth keyword is

specified for the CAR list, you can set the CIR to 10 Mbps at maximum. If the shared-bandwidth keyword

is specified for the CAR list, you can set the CIR to 100 kbps at maximum.

Examples

# Configure precedence 7 for CAR list 1.

<Sysname> system-view

[Sysname] qos carl 1 precedence 7

# Apply CAR list 1 to the outbound direction of GigabitEthernet 1/0/1. CAR list 1 limits the rate of each

PC on the subnet 1.1.1.0/24 to 100 kbps, and traffic of IP addresses in the subnet does not share the

remaining bandwidth.

<Sysname> system-view

[Sysname] qos carl 1 source-ip-address subnet 1.1.1.0 24 per-address

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] qos car outbound carl 1 cir 100 cbs 6250 ebs 0 green pass

red discard

# Apply CAR list 1 to the outbound direction of GigabitEthernet 1/0/1. CAR list 2 limits the rate of each

PC on the network segment 1.1.2.100 through 1.1.2.199 to 5 Mbps, and traffic of IP addresses in the

subnet share the remaining bandwidth.

<Sysname> system-view

[Sysname] qos carl 2 source-ip-address range 1.1.2.100 to 1.1.2.199 per-address

shared-bandwidth

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] qos car outbound carl 2 cir 5000 cbs 3125 ebs 31250 green

pass red discard

GTS commands

display qos gts interface

Use display qos gts interface to view generic traffic shaping (GTS) configuration information and

operational statistics on a specified interface or all the interfaces.