500 BigIron RX Series Configuration Guide53-1001810-01Configuring rate limiting policies19Configuring a VLAN-group-based rate limiting policyA rate limiting policy can be applied to a VLAN group. VLANs that are members of a VLAN groupshare the specified bandwidth defined in the rate limiting policy applied to that group.To configure a rate limiting policy for a VLAN group, do the following.1. Define the VLANs that you want to place in a rate limiting VLAN group.2. Define a rate limiting VLAN group (it is specific to the rate limiting feature) and assign VLANs toit. To define a rate limiting VLAN group, use the rl-vlan-group command at the CONFIG level. Toassign VLANs to the group, use the vlan command at the VLAN group rate limiting configurationlevel.For example, enter the following.BigIron RX(config)# rl-vlan-group 10BigIron RX(config-rl-vlan-group-10)# vlan 3 5 to 7BigIron RX(config-rl-vlan-group-10)# exitThe commands assign VLANs 3, 5, 6, and 7 to rate limiting VLAN group 10.Syntax: [no]rl-vlan-group Syntax: [no]vlan [to The rl-vlan-group command defines a rate limiting VLAN group and takes you to the VLAN grouprate limiting configuration level. specifies the VLAN group that you want to create.The vlan command assigns VLANs to the rate limiting VLAN group. Possible values areindividual VLAN IDs or a range of VLAN IDs.3. Create a rate limiting policy for the VLAN group and apply it to the interface. Enter thecommand such as the following at the interface level.BigIron RX(config-if-e1000-1/4)# rate-limit in group 10 500000000 750000000The command configures a rate limiting policy on port 1/4 that limits the rate of inboundtraffic (packets tagged with VLANs 3, 5, 6, or 7 from VLAN group 10) from VLAN group 10 to500 Mbps with a maximum burst size of 750 Mbits.Syntax: rate-limit in group The group parameter specifies the rate limiting VLAN group.For information on the other parameters, refer to “Configuring a port-based rate limiting policy”on page 498.4. To apply a rate limiting policy to a VLAN group whose traffic is prioritized by hardwareforwarding queues, enter the command such as the following in lieu of step number 3.BigIron RX(config-if-e1000-1/4)# rate-limit in group 10 priority 5 priority 6500000000 750000000The command applies the rate limiting policy for rate limiting VLAN group 10. This policy limitsall traffic tagged with VLANs 3, 5, 6, or 7 on hardware forwarding queues 2 and 3 to a rate of500 Mbps with a maximum burst size of 750 Mbits.Syntax: rate-limit in group priority
