Brocade Communications Systems Brocate Ethernet Access Switch 6910 - Manual (Page 492)

442 Brocade 6910 Ethernet Access Switch Configuration Guide
53-1002581-01
Quality of Service Commands
22
Example
This example creates a policy called “rd-policy,” uses the class command to specify the previously
defined “rd-class,” uses the set phb command to classify the service that incoming packets will
receive, and then uses the police trtcm-color-blind command to limit the average bandwidth to
100,000 Kbps, the committed burst rate to 4000 bytes, the peak information rate to 1,000,000
kbps, the peak burst size to 6000, to remark any packets exceeding the committed burst size, and
to drop any packets exceeding the peak information rate.
Console(config)#policy-map rd-policy
Console(config-pmap)#class rd-class
Console(config-pmap-c)#set phb 3
Console(config-pmap-c)#police trtcm-color-blind 100000 4000 100000 6000
conform-action transmit exceed-action 0 violate-action drop
Console(config-pmap-c)#
set cos
This command modifies the class of service (CoS) value for a matching packet (as specified by the
match command) in the packet’s VLAN tag. Use the no form to remove this setting.
Syntax
[no] set cos cos-value
cos-value - Class of Service value. (Range: 0-7)
Default Setting
None
Command Mode
Policy Map Class Configuration
Command Usage
• The set cos command is used to set the CoS value in the VLAN tag for matching packets.
• The set cos and set phb command function at the same level of priority. Therefore setting
either of these commands will overwrite any action already configured by the other command.
Example
This example creates a policy called “rd-policy,” uses the class command to specify the previously
defined “rd-class,” uses the set cos command to classify the service that incoming packets will
receive, and then uses the
police flow command to limit the average bandwidth to 100,000 Kbps,
the burst rate to 4000 bytes, and configure the response to drop any violating packets.
Console(config)#policy-map rd-policy
Console(config-pmap)#class rd-class
Console(config-pmap-c)#set cos 3
Console(config-pmap-c)#police flow 10000 4000 conform-action transmit
violate-action drop
Console(config-pmap-c)#