Dell S3100 EMC Command Line Reference Guide for the Series 9.14.2.5 - Page 1295

Example (EDS, LBK) Example (Guard) Gi 4/9 Altr 128.427 128 20000 BLK 20000 P2P No DellEMC# NOTE: "LBK_INC" (bold) means Loopback BPDU Inconsistency. DellEMC# show spanning-tree rstp br Executing IEEE compatible Spanning Tree Protocol Root ID Priority 32768, Address 0001.e801.6aa8 Root Bridge hello time 2, max age 20, forward delay 15 Bridge ID Priority 32768, Address 0001.e801.6aa8 We are the root Configured hello time 2, max age 20, forward delay 15 Interface Designated Name PortID Prio Cost Sts Cost Bridge ID PortID Gi 1/1 128.257 128 20000 EDS 0 32768 0001.e801.6aa8 128.257 Interface Name Role PortID Prio Cost Sts Cost Link-type Edge Gi 1/1 ErrDis 128.257 128 20000 EDS 0 P2P No DellEMC#show spanning-tree rstp Root Identifier has priority 32768, Address 0001.e801.6aa8 Root Bridge hello time 2, max age 20, forward delay 15, max hops 0 Bridge Identifier has priority 32768, Address 0001.e801.6aa8 Configured hello time 2, max age 20, forward delay 15, max hops 0 We are the root Current root has priority 32768, Address 0001.e801.6aa8 Number of topology changes 1, last change occurred 00:00:31 ago on Gi 1/1 Port 257 (GigabitEthernet 1/1) is LBK_INC Discarding Port path cost 20000, Port priority 128, Port Identifier 128.257 Designated root has priority 32768, address 0001.e801.6aa8 Designated bridge has priority 32768, address 0001.e801.6aa8 Designated port id is 128.257, designated path cost 0 Number of transitions to forwarding state 1 BPDU : sent 27, received 9 The port is not in the Edge port mode DellEMC# show spanning-tree rstp guard Interface Name Instance Sts Guard type Gi 0/1 0 INCON(Root) Rootguard Gi 0/2 0 FWD Loopguard Gi 0/3 0 BLK Bpduguard spanning-tree rstp Configure an RSTP interface with one of these settings: port cost, edge port with optional bridge port data unit (BPDU) guard, port priority, loop guard, or root guard. Syntax Parameters spanning-tree rstp {cost port-cost | edge-port [bpduguard [shutdown-onviolation]] | priority priority | {loopguard | rootguard}} cost port-cost Enter the keyword cost then the port cost value. The range is from 1 to 200000. The defaults are: • 100 Mb/s Ethernet interface = 200000 • 1-Gigabit Ethernet interface = 20000 • 10-Gigabit Ethernet interface = 2000 • Port Channel interface with one 100 Mb/s Ethernet = 200000 • Port Channel interface with one 1 Gigabit Ethernet = 20000 Rapid Spanning Tree Protocol (RSTP) 1295