Brocade Communications Systems 8 Administrator's Manual page 47

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TABLE 5
Option
Committed rate
Adaptive rate limiting
(ARL)
Selective
Acknowledgement
Keep alive timeout
Fabric OS FCIP Administrator's Guide
53-1001766-01
Circuit options
Argument
<committed rate>
-b - -<min_comm_rate>
-B - -<max_comm_rate>
-s --sack
-k
Configuration steps
Disruptive Description
This option may be used on a portcfg
fciptunnel create command or on the
portcfg fcipcircuit create command to set
a committed rate for an FCIP circuit.
When this option is used on the portcfg
fciptunnel create command, the
committed rate applies only to circuit 0.
If you intend to use ARL on the circuit,
use the -b and -B options instead to set
the minimum and maximum committed
rates.
NOTE: This option cannot be modified
by the portcfg fciptunnel modify
or portcfg fcipcircuit modify
commands. To change it, you
need to delete the circuit and
create a new circuit with the new
committed rate.
The minimum committed rate is a
guaranteed minimum traffic rate for an
FCIP circuit.
NOTE: When added together, the
minimum committed rates for all
circuits cannot exceed the speed
of the GbE port.
The maximum committed rate is the rate
that the tunnel will try to achieve, based
on bandwidth availability and network
performance.
NOTE: When ARL is used, The link cost
is equal to the sum of maximum
traffic rates of all established,
currently active lowest metric
circuits in the tunnel.
Selective acknowledgement allows a
receiver to acknowledge multiple lost
packets with a single ACK response. This
results in better performance and faster
recovery time.
Selective acknowledgement is initially
turned on. For some applications and in
some situations, you may need to turn
selective acknowledgement off. This
option is used to toggle the option off
and on.
The keep-alive timeout in seconds. The
range of valid values is 8 through 7,200
sec and the default is 10.
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