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Dell PowerConnect B-RX - Page 13

Dell PowerConnect B-RX
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BigIron RX Series Configuration Guide xiii
53-1002253-01
State machines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .362
Handshake mechanisms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .363
Convergence in a simple topology . . . . . . . . . . . . . . . . . . . . . . . . . .373
Convergence at start up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374
Convergence after a link failure . . . . . . . . . . . . . . . . . . . . . . . . 376
Convergence at link restoration . . . . . . . . . . . . . . . . . . . . . . . .377
Convergence in a complex RSTP topology. . . . . . . . . . . . . . . . . . . .378
Propagation of topology change . . . . . . . . . . . . . . . . . . . . . . . .381
Compatibility of RSTP with 802.1D . . . . . . . . . . . . . . . . . . . . . . . . .384
Configuring RSTP parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . .385
Enabling or disabling RSTP in a port-based VLAN . . . . . . . . . .385
Enabling or disabling RSTP on a single spanning tree . . . . . .386
Disabling or enabling RSTP on a port. . . . . . . . . . . . . . . . . . . .386
Changing RSTP bridge parameters. . . . . . . . . . . . . . . . . . . . . .386
Changing port parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . .387
Fast port span . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .388
Fast uplink span. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .390
Displaying RSTP information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .392
Chapter 14 Metro Ring Protocol (MRP) Phase 1 and 2
Metro Ring Protocol (MRP) phase 1. . . . . . . . . . . . . . . . . . . . . . . . .401
MRP rings without shared interfaces . . . . . . . . . . . . . . . . . . . . . . .402
Ring initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .403
How ring breaks are detected and healed . . . . . . . . . . . . . . . . . . .406
Master VLANs and customer VLANs in a topology group . . . . . . . .408
Configuring MRP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 410
Adding an MRP ring to a VLAN . . . . . . . . . . . . . . . . . . . . . . . . . 411
Changing the hello and preforwarding times. . . . . . . . . . . . . .412
MRP phase 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .412
Ring initialization for shared interfaces. . . . . . . . . . . . . . . . . . . . . .414
How ring breaks are detected and healed between
shared interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 414
Selection of master node . . . . . . . . . . . . . . . . . . . . . . . . . . . . .415
RHP processing in rings with shared interfaces . . . . . . . . . . .415
Normal flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 416
Flow when a link breaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417
Configuring MRP with shared interfaces . . . . . . . . . . . . . . . . . 417
Using MRP diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .418
Enabling MRP diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . .418
Displaying MRP diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . .419
Displaying MRP information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .419
Displaying topology group information . . . . . . . . . . . . . . . . . . .419
Displaying ring information . . . . . . . . . . . . . . . . . . . . . . . . . . . .420

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