Flashcards
STP: problems, convergence and variants (PVST+, RSTP, MSTP)
Cards in this deck (10)
- 1What does STP Help prevent1. Broadcast Storms
2. MAC Table Instability
3. Multiple Frame Transmission - 2STP Convergence1. Root Bridge (lowest BID) is elected.
2. Elect root ports on not root switch.
3. Elect designated port for each segment.
4. Pug root ports and designated ports in forwarding and block all other ports. - 3Default port costs 10Mbps 100Mbps 1Gbps 10Gbps100
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4
2 - 4STP Variety802.1D
Low resource requirement
Slow convergence
Tree calculation for All VLANs - 5PVST+Per Vlan Spanning Tree Plus
Cisco Proprietary
High resource requirement
Slow convergence
Tree calculation per VLAN - 6RSTPRapid Spanning Tree Protocol
802.1w
Medium resource requirement
Fast convergence
Tree calculation All VLANs - 7Rapid PVST+Rapid Per VLAN Spanning Tree Plus
Cisco proprietary
Very high resource requirement
Fast convergence
Tree calculation per VLAN - 8MSTPMultiple Spanning Tree Protocol
802.1s or Cisco (MST)
Medium or High resource requirement
Fast convergence
Tree calculation is per instance - 9Determining RP/DP and DP/Blk1. Lowest root path cost
2. Lowest Bridge ID (BID)
3. Lowest Port (Interface) Number - 10—
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- 2 ICND2 Flashcards on Untitled, created by rekkos on 22/10/2015.
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- rekkos
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