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Fabric OS Administrator’s Guide
421
53-1002446-01
Enabling CS_CTL-based frame prioritization
21
Supported configurations for CS_CTL-based frame prioritization
•
CS_CTL-based frame prioritization is supported on all 8-Gbps and 16-Gbps platforms.
•
All switches in the fabric should be running Fabric OS v6.0.0 or later.
NOTE
If a switch is running a firmware version earlier than Fabric OS v6.0.0, the outgoing frames
from that switch lose their priority.
High availability considerations for CS_CTL-based frame prioritization
If the standby CP is running a Fabric OS version earlier than 6.3.0 and is synchronized with the
active CP, then you cannot enable CS_CTL-based frame prioritization on the active CP. If the
standby CP is not synchronized or if no standby CP exists, then enabling CS_CTL-based frame
prioritization succeeds.
Enabling CS_CTL-based frame prioritization
When you enable CS_CTL-based frame prioritization, you should enable it on both the source port
and the destination port, so that the frames returned from the destination port for a given
exchange always have the same CS_CTL prioritization as the frames originating from the source
port.
1. Connect to the switch and log in to an account that has admin permissions.
2. Enter the portcfgqos command.
portcfgqos --enable
[
slot
/]
port
csctl_mode
3. Enter y at the prompt to override QoS zone-based traffic prioritization.
Disabling CS_CTL-based frame prioritization
When you disable CS_CTL-based frame prioritization, QoS zone-based traffic prioritization is
restored, if it had been previously enabled.
1. Connect to the switch and log in to an account that has admin permissions.
2. Enter the portcfgqos command.
portcfgqos --disable
[
slot
/]
port
csctl_mode
QoS zone-based traffic prioritization
QoS zone-based traffic prioritization allows you to categorize the traffic flow between a host and
target as having a high or low priority. For example, you could assign online transaction processing
(OLTP) to high priority and backup traffic to low priority.
All flows without QoS prioritization are considered medium priority.
Summary of Contents for Fabric OS v7.0.1
Page 1: ...53 1002446 01 15 December 2011 Fabric OS Administrator s Guide Supporting Fabric OS v7 0 1 ...
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Page 214: ...176 Fabric OS Administrator s Guide 53 1002446 01 Management interface security 7 ...
Page 228: ...190 Fabric OS Administrator s Guide 53 1002446 01 Brocade configuration form 8 ...
Page 248: ...210 Fabric OS Administrator s Guide 53 1002446 01 Validating a firmware download 9 ...
Page 334: ...296 Fabric OS Administrator s Guide 53 1002446 01 Setting up TI over FCR sample procedure 12 ...
Page 360: ...322 Fabric OS Administrator s Guide 53 1002446 01 Encryption and compression example 14 ...
Page 404: ...366 Fabric OS Administrator s Guide 53 1002446 01 ...
Page 430: ...392 Fabric OS Administrator s Guide 53 1002446 01 Ports on Demand 18 ...
Page 502: ...464 Fabric OS Administrator s Guide 53 1002446 01 Buffer credit recovery 23 ...
Page 572: ...534 Fabric OS Administrator s Guide 53 1002446 01 Hexadecimal overview D ...
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