
Switching Commands
©2008 Allied Telesis Inc. All rights reserved.
15.10
AlliedWare Plus
TM
Operating System Software Reference C613-50003-00 REV E
Software Version 5.2.1
platform control-plane-prioritization rate
The CPU protection feature ensures that different traffic types can share the CPU effectively.
Use this command to set the maximum traffic rate on the CPU port to limit the CPU getting
overloaded with unnecessary data packets that may result in poor performance of the control
plane, for example, CLI console lock up or control packet loss following a broadcast storm.
The default rate limiting value is set to transmit the packets to the CPU at 60 Mbps. The CPU
port uses the WRR (Weighted Round Robin) scheduler with appropriate weights assigned.
Use the
no platform control-plane-prioritization
command to restore the rate limiting on the
CPU port to the default value of 60 Mbps. Note only integer values are accepted for rate limits.
Set the rate to 0 using
platform control-plane prioritization rate
to disable CPU protection.
Syntax
platform control-plane-prioritization rate <
rate-limit
>
no platform control-plane-prioritization rate
Mode
Configure mode
Default
60 Mbps
Usage
Confirming default settings:
Use
show platform
to confirm the default rate limit settings displayed with platform
information:
awplus#show platform
Load Balancing srt-dst-mac, src-dst-ip
Control-plane-prioritization Max 60 Mbps
Jumboframe support off
Enhanced mode qos counters
Vlan-stacking TPID 0x8100
Disabling CPU protection:
To disable the CPU protection feature you can set the control plane prioritization rate to 0:
awplus#platform control-plane-prioritization 0
Then you can confirm the CPU protection feature has been disabled using
show platform
:
awplus#show platform
Load Balancing srt-dst-mac, src-dst-ip
Control-plane-prioritization Max 0 Mbps
Jumboframe support off
Enhanced mode qos counters
Vlan-stacking TPID 0x8100
Parameter
Description
<
rate-limit
>
<1-1000> 1 Mbps to 1000 Mbps. Default is 60 Mbps.