License Requirements For Sid/Did Prioritization; Cs_Ctl-Based Frame Prioritization; Table 72 Comparison Between Cs_Ctl-Based And Qos Zone-Based Prioritization; Table 73 Virtual Channels Assigned To Qos Priority For Frame Prioritization - HP SN3000B Administrator's Manual

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CS_CTL-based frame prioritization

TABLE 72

CS_CTL-based frame prioritization

Requires Adaptive Networking license.
Must be manually enabled after you install the license.
No zones are required.
Enabled on F/FL_Ports.
Takes precedence over QoS zone-based prioritization.
Priority is defined by CS-CTL field in frame header.
Prioritization is on a frame-basis.
Setup steps:
•

License requirements for SID/DID prioritization

Both CS_CTL-based frame prioritization and QoS zone-based traffic prioritization require the
Adaptive Networking license.
An Adaptive Networking license must be installed on every switch that is in the path between a
configured device pair.
When you install the Adaptive Networking license, QoS zone-based traffic prioritization is
automatically enabled on the E_Ports, except for long-distance E_Ports. For long-distance E_Ports,
you must manually enable QoS zone-based traffic prioritization after you install the license.
ATTENTION
To preserve existing trunk groups, before you install the Adaptive Networking license, manually
disable QoS on the 8 Gbps ports. See
Networking license"
CS_CTL-based frame prioritization
CS_CTL-based frame prioritization allows you to prioritize the frames between a host and target as
having high, medium, or low priority, depending on the value of the CS_CTL field in the FC frame
header.
High, medium, and low priority frames are allocated to different virtual channels (VCs). High priority
frames receive more VCs than medium priority frames, which receive more VCs than low priority
frames. The virtual channels are allocated according to the CS_CTL value, as shown in
TABLE 73
CS_CTL value
1 – 8
9 – 16
17 – 24
420
Comparison between CS_CTL-based and QoS zone-based prioritization
Enable QoS on F/FL_Ports.
on page 422 for more information.
Virtual channels assigned to QoS priority for frame prioritization
Priority
High priority
Medium priority
Low priority
QoS zone-based traffic prioritization
Requires Adaptive Networking license.
Automatically enabled when you install the license.
Requires you to create QoS zones.
Enabled on E_Ports.
Is overridden by CS_CTL-based prioritization.
Priority is defined by name of QoS zone.
Prioritization is on a flow-basis.
Setup steps:
•
Create QoS zones with host/target members.
•
Add the QoS zones to the zone configuration.
•
Save and then and enable the zone configuration.
•
Enable QoS on E_Ports.
"Trunking considerations before you install the Adaptive
Number of VCs VCs assigned
4 10, 11, 12, 13
4 2, 3, 4, 5
2 8, 9
Table 73.
Fabric OS Administrator's Guide
53-1002446-01