Reference Guide

Command Mode SYSTEM-QOS
Usage
Information
The no version of this command returns the value to the default.
Example
OS10(conf-sys-qos)# pfc-shared-buffer-size 2000
Supported
Releases
10.3.0E or later
pfc-shared-headroom-buffer-size
Configures the shared headroom size for absorbing the packets after pause frames are generated.
NOTE: This command is available only on Z9100-ON and HE-IOM.
Syntax
pfc-shared-headroom-buffer-size headroom-buffer-size
Parameters headroom-buffer-size — Enter the size of the priority flow-control headroom buffer in KB (1 to
3399).
Default 1024 KB
Command Mode SYSTEM-QOS
Usage
Information
This command is used to configure the shared headroom size. All PFC enabled priority groups can use the
shared headroom space. Headroom is the buffer space which absorbs the incoming packets after the PFC
frames reach the sender. Once the threshold is reached PFC frames are generated towards the sender.
The packets sent by the sender after the PFC frames are generated are absorbed into the Headroom
buffer. The no version of this command returns the value to the default.
Example
OS10(conf-sys-qos)# pfc-shared-headroom-buffer-size 2000
Supported
Releases
10.4.0E(R1) or later
police
Configures traffic policing on incoming traffic.
Syntax
police {cir committed-rate [bc committed-burst-size]} {pir peak-rate [be
peak-burst-size]}
Parameters
● cir committed-rate — Enter a committed rate value in kilo bits per second (0 to 4000000).
● bc committed-burst-size — (Optional) Enter committed burst size in packets for control plane
policing and in KB for data packets. (16 to 200000).
● pir peak-rate — Enter a peak-rate value in kilo bits per second (0 to 40000000).
● be peak-burst-size — (Optional) Enter a peak burst size in kilo bytes (16 to 200000).
Defaults
● bc committed-burst-size value is 200 KB for control plane and 100 KB for all other
class-map types
● be peak-burst-size value is 200 KB for control plane and 100 KB for all other class-map
types
Command Mode POLICY-MAP-CLASS-MAP
Usage
Information
If you do not provide the peak-rate pir values, the committed-rate cir values are taken as the pir
values. Only the ingress QoS policy type supports this command. For control-plane policing, the rate
values are in pps.
Example
OS10(conf-pmap-c-qos)# police cir 5 bc 30 pir 20 be 40
Quality of service 655