Brocade Communications Systems 804 Manual De Usuario

ratelim

B

ratelim 

Enables or disables target rate limiting support on the HBA side.

Synopsis

bcu ratelim --enable <port_id>

bcu ratelim --disable <port_id>

bcu ratelim --query <port_id>

bcu ratelim --defspeed <port_id> [<1|2|4>]

Description

The target rate limiting feature is used to minimize congestion at the HBA port due to a slow drain 
device operating in the fabric at a slower speed. A remote port’s operating speed is determined 
from the fabric. Traffic destined to the remote port is limited to its current operating speed.

The default rate limit is 1 Gbps. Target rate limiting (TRL) is supported only when the HBA port is 
connected to the fabric. Therefore, TRL is not supported when the port is directly connected with 
another device. 

Possible port identifiers could be any one of the following:

•

Adapter ID

•

Port ID

•

Port WWN

•

Port name (user assigned)

•

Port hardware path

NOTE

You must first enter the bcu port --disable <port_id> command, followed by the port --enable 
command, before the ratelim --enable or ratelim --disable commands take effect.

Operands

--enable

Enables target rate limiting, if currently disabled. 

Specifies the ID of the port you want to enable.

--disable

Disables target rate limiting on the HBA, if currently enabled.

Specifies the ID of the port you want to disable.

--query

Queries the target rate limiting details.

Specifies the ID of the port for which you want to display information.

--defspeed

Sets the default target rate limiting speed. The default TRL speed must be 
supported and less than the maximum speed at which the card can operate.

Specifies the ID of the port on which you want to set the speed.

Sets the default target rate limiting speed on the HBA. Options are 1 Gbps, 2 
Gbps, and 4 Gbps

See Also

None