Spanning tree CCNA lab
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Lab 07
Spanning Tree Protocol (STP / RSTP)
Click a switch to open its terminal
SW1 — Root Bridge
Enable RSTP on SW1
Set SW1 as root bridge
SW2 — Configure
Enable RSTP on SW2
SW3 — Configure
Enable RSTP on SW3
Commands
span mode rapid-pvst
— enable RSTP on all VLANs
span vlan 1 pri 4096
— set primary root bridge
sh span — verify STP state
sh span vlan 1 — detailed view
— enable RSTP on all VLANs
span vlan 1 pri 4096
— set primary root bridge
sh span — verify STP state
sh span vlan 1 — detailed view
Designated (DP)
Root (RP)
Blocked (BLK)
Unknown
SW1
SW2
SW3
SW1#