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Fabric OS Administrator’s Guide
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53-1002745-02
QoS zones
21
FIGURE 70
Traffic prioritization in a logical fabric
Supported configurations for QoS zone-based traffic prioritization
The following configuration rules apply to QoS zone-based traffic prioritization:
•
All switches in the fabric must be running Fabric OS v6.0.0 or later.
ATTENTION
If QoS traffic crosses an ISL for a switch running a firmware version earlier than Fabric OS
v6.0.0, the frames are dropped.
•
By default, all devices are assigned medium priority.
-
To be assigned high or low priority, hosts and targets must be connected to a Brocade
8-Gbps or 16-Gbps switch or port blade.
-
To preserve the priority level across ISLs, the switches must be running Fabric OS v6.0.0 or
later and must be one of the following platforms: Brocade 300, 4100, 4900, 5000, 5100,
5300, 5410, 5424, 5450, 5480, 6510, 6520, 7500, 7500E, 7600, 7800, 8000,
VA-40FC, 48000, Brocade DCX, DCX-4S, or DCX 8510 family.
•
QoS is enabled by default on 8-Gbps and 16-Gbps ports. QoS is disabled by default on all
4-Gbps ports and long-distance ports.
Limitations and restrictions for QoS zone-based traffic prioritization
•
Enabling and disabling QoS is potentially disruptive to the I/O on the affected port.
•
If a host and target are included in two or more QoS zones with different priorities, the zone
with the lowest priority takes precedence. For example, if an effective zone configuration has
QOSH_z1 (H,T) and QOSL_z2 (H,T), the traffic flow between H and T will be of low QoS priority.
Additionally, if QOSH_z1 (H,T) overlaps with a “domain,port” zone at the H port, the traffic flow
between H and T is dropped to medium priority and the H port is marked as a session-based
zoning port.
= High priority
Chassis 1
Chassis 2
H1
S1
Domain 1
Domain 2
Base switch
Domain 9
LS2, FID3
Domain 6
LS1, FID1
Domain 5
Base switch
Domain 10
LS4, FID3
Domain 8
LS3, FID1
Domain 7
Domain 3
= E_Ports with QoS enabled
12
1
8
5
3
8
16
14
10
9
11
13
15
17
7
6
4
2
Содержание Fabric OS 7.1.0
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Страница 116: ...116 Fabric OS Administrator s Guide 53 1002745 02 Inter switch links 4 FIGURE 7 Virtual channels on a QoS enabled ISL ...
Страница 132: ...132 Fabric OS Administrator s Guide 53 1002745 02 Frame Redirection 4 ...
Страница 194: ...194 Fabric OS Administrator s Guide 53 1002745 02 Ports and applications used by switches 6 ...
Страница 254: ...254 Fabric OS Administrator s Guide 53 1002745 02 Brocade configuration form 8 ...
Страница 274: ...274 Fabric OS Administrator s Guide 53 1002745 02 Validating a firmware download 9 ...
Страница 302: ...302 Fabric OS Administrator s Guide 53 1002745 02 Creating a logical fabric using XISLs 10 ...
Страница 344: ...344 Fabric OS Administrator s Guide 53 1002745 02 Concurrent zone transactions 11 ...
Страница 374: ...374 Fabric OS Administrator s Guide 53 1002745 02 Setting up TI over FCR sample procedure 12 ...
Страница 432: ...432 Fabric OS Administrator s Guide 53 1002745 02 Access Gateway N_Port failover with FA PWWN 16 ...
Страница 462: ...462 Fabric OS Administrator s Guide 53 1002745 02 ...
Страница 490: ...490 Fabric OS Administrator s Guide 53 1002745 02 Ports on Demand 18 ...
Страница 498: ...498 Fabric OS Administrator s Guide 53 1002745 02 Supported topologies for ICL connections 19 ...
Страница 626: ...626 Fabric OS Administrator s Guide 53 1002745 02 Preparing a switch for FIPS B ...
Страница 630: ...630 Fabric OS Administrator s Guide 53 1002745 02 Hexadecimal Conversion C ...
Страница 666: ...666 Fabric OS Administrator s Guide 53 1002745 02 ...