Specifications

10 ExtremeWare XOS 11.0 Concepts Guide
Contents
STP Configurations 203
Basic STP Configuration 203
Multiple STPDs on a Port 206
VLAN Spanning Multiple STPDs 206
EMISTP Deployment Constraints 207
Per VLAN Spanning Tree 209
STPD VLAN Mapping 209
Native VLAN 209
Rapid Spanning Tree Protocol 209
RSTP Terms 210
RSTP Concepts 210
RSTP Operation 213
STP Rules and Restrictions 220
Configuring STP on the Switch 220
STP Configuration Examples 222
Basic 802.1D Configuration Example 222
EMISTP Configuration Example 223
RSTP 802.1W Configuration Example 224
Displaying STP Settings 225
Chapter 13 Extreme Standby Router Protocol
Overview of ESRP 227
Reasons to Use ESRP 228
ESRP Terms 228
ESRP Concepts 230
ESRP-Aware Switches 231
Standard and Extended ESRP 231
ESRP Domains 233
Linking ESRP Switches 233
ESRP and Hitless Failover 233
Determining the ESRP Master 234
Master Switch Behavior 235
Pre-Master Switch Behavior 235
Slave Switch Behavior 235
Neutral Switch Behavior 235
Electing the Master Switch 236
ESRP Failover Time 236
ESRP Election Algorithms 237
Advanced ESRP Features 238
ESRP Tracking 239
ESRP Port Restart 241