Users Guide

Fabric OS Administrator’s Guide 17
53-1002920-02
QoS zone-based traffic prioritization . . . . . . . . . . . . . . . . . . . . . . . .419
QoS zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .419
QoS on E_Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .421
QoS over FC routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .421
Virtual Fabrics considerations for QoS zone-based traffic
prioritization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .422
High-availability considerations for QoS zone-based traffic
prioritization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .422
Supported configurations for QoS zone-based traffic
prioritization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .423
Limitations and restrictions for QoS zone-based traffic
prioritization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .424
Setting QoS zone-based traffic prioritization. . . . . . . . . . . . . . . . . .424
Setting QoS zone-based traffic prioritization over FC routers . . . .426
Disabling QoS zone-based traffic prioritization. . . . . . . . . . . . . . . .426
Chapter 15 Bottleneck Detection
Bottleneck detection overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . .427
Types of bottlenecks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .428
How bottlenecks are reported. . . . . . . . . . . . . . . . . . . . . . . . . .428
Supported configurations for bottleneck detection . . . . . . . . . . . .429
Limitations of bottleneck detection . . . . . . . . . . . . . . . . . . . . .429
High availability considerations for bottleneck detection . . . .430
Upgrade and downgrade considerations for bottleneck
detection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .430
Trunking considerations for bottleneck detection . . . . . . . . . .430
Virtual Fabrics considerations for bottleneck detection . . . . .430
Access Gateway considerations for bottleneck detection. . . .430
Enabling bottleneck detection on a switch . . . . . . . . . . . . . . . . . . .431
Displaying bottleneck detection configuration details . . . . . . . . . .431
Setting bottleneck detection alerts . . . . . . . . . . . . . . . . . . . . . . . . .433
Setting both a congestion alert and a latency alert . . . . . . . .434
Setting a congestion alert only . . . . . . . . . . . . . . . . . . . . . . . . .434
Setting a latency alert only . . . . . . . . . . . . . . . . . . . . . . . . . . . .435
Changing bottleneck detection parameters . . . . . . . . . . . . . . . . . .435
Examples of applying and changing bottleneck detection
parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .436
Advanced bottleneck detection settings . . . . . . . . . . . . . . . . . . . . .439
Excluding a port from bottleneck detection . . . . . . . . . . . . . . . . . .440
Displaying bottleneck statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . .442
Disabling bottleneck detection on a switch . . . . . . . . . . . . . . . . . .442