HP 1606 Fabric OS FCIP Administrators Guide v6.4.0 (53-1001766-01, November 20 - Page 47

Circuit options, Option, Argument, Disruptive, Description

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Configuration steps 2 . TABLE 5 Option Circuit options Argument Committed rate Adaptive rate limiting (ARL) -b - - -B - - Selective Acknowledgement -s --sack Keep alive timeout -k 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. Fabric OS FCIP Administrator's Guide 33 53-1001766-01

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Fabric OS FCIP Administrator’s Guide
33
53-1001766-01
Configuration steps
2
.
TABLE 5
Circuit options
Option
Argument
Disruptive
Description
Committed rate
<committed rate>
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.
Adaptive rate limiting
(ARL)
-b - -<min_comm_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.
-B - -<max_comm_rate>
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
-s
--
sack
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.
Keep alive timeout
-k
The keep-alive timeout in seconds. The
range of valid values is 8 through 7,200
sec and the default is 10.