Users Guide

• cir committed-rate—Enter a committed rate value in kilobits per second (kbps) (0 to 40000000).
• bc committed-burst-size—(Optional) Enter a committed burst size in packets for control plane and kbps (16 to 200000,
default 200).
• pir peak-rate—Enter a peak-rate value in kbps (0 to 40000000).
• be peak-burst-size—(Optional) Enter a peak burst size in kbps (16 to 200000, default 200).
4 (Optional) Congure trac policing for a specic queue in POLICY-MAP-CLASS-MAP mode. Queue number range is from 0 to 7 for
qos policy map and 0 to 11 for control-plane policy map.
set qos-group queue-number
Congure policy-based rate policy
OS10(config)# policy-map type qos galaxy
OS10(conf-pmap-qos)# class bigbang
OS10(conf-pmap-c-qos)# police cir 5 bc 30 pir 20 be 40
Congure rate policing on specic queue
OS10(config)# policy-map bronze
OS10(conf-pmap-qos)# class silver
OS10(conf-pmap-c-qos)# set qos-group 7
OS10(conf-pmap-c-qos)# police cir 5 pir 30
View policy-map
OS10(conf-pmap-c-qos)# do show policy-map
Service-policy (qos) input: galaxy
Class-map (qos): bigbang
police cir 5 bc 30 pir 20 be 40
Service-policy (qos) input: bronze
Class-map (qos): silver
police cir 5 bc 100 pir 30 be 100
Storm control
Trac storms created by packet ooding or other reasons may degrade the performance of the network.
The storm control feature allows you to control unknown unicast, multicast, and broadcast trac on Layer 2 and Layer 3 physical
interfaces.
In the storm control unknown unicast conguration, both the unknown unicast and unknown multicast trac are rate-limited.
OS10 device monitors the current level of trac rate at xed intervals, compares the trac rate with congured levels, and drops excess
trac.
By default, storm control is disabled on all interfaces. You can enable storm control using the storm-control { broadcast |
multicast | unknown-unicast } rate-in-pps command in the INTERFACE mode.
NOTE
: In S5148F-ON, there is a 2% of deviation in the storm control conguration.
Congure storm control
• The following example enables broadcast storm control with a rate of 1000 packets per second (pps) on Ethernet 1/1/1.
OS10(conf-if-eth1/1/1)# storm-control broadcast 1000
Control-plane policing
Control-plane policing (CoPP) increases security on the system by protecting the route processor from unnecessary trac and giving
priority to important control plane and management trac. CoPP uses a dedicated control plane conguration through the QoS CLIs to
provide ltering and rate-limiting capabilities for the control plane packets.
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Quality of service