C
ONTENTS
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8SPANNING TREE ALGORITHM 235
Overview 235
Configuring Loopback Detection 238
Configuring Global Settings for STA 240
Displaying Global Settings for STA 245
Configuring Interface Settings for STA 246
Displaying Interface Settings for STA 250
Configuring Multiple Spanning Trees 253
Configuring Interface Settings for MSTP 257
9CONGESTION CONTROL 259
Rate Limiting 259
Storm Control 260
Automatic Traffic Control 262
Setting the ATC Timers 264
Configuring ATC Thresholds and Responses 265
10 CLASS OF SERVICE 269
Layer 2 Queue Settings 269
Setting the Default Priority for Interfaces 269
Selecting the Queue Mode 270
Mapping CoS Values to Egress Queues 273
Layer 3/4 Priority Settings 275
Setting Priority Processing to DSCP or CoS 276
Mapping Ingress DSCP Values to Internal DSCP Values 277
Mapping CoS Priorities to Internal DSCP Values 279
11 QUALITY OF SERVICE 283
Overview 283
Configuring a Class Map 284
Creating QoS Policies 287
Attaching a Policy Map to a Port 297
12 VOIP TRAFFIC CONFIGURATION 299
Overview 299
Configuring VoIP Traffic 299
Configuring Telephony OUI 301
Configuring VoIP Traffic Ports 302