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STP Variety |
Description |
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STP |
The original IEEE 802.1D version (802.1D-1998 and earlier) that provides a loop-free topology in a network with redundant links. One spanning tree instance for the entire bridged network |
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PVST+ |
Per-VLAN Spanning Tree (PVST+) is a Cisco enhancement of STP that provides a separate 802.1D spanning tree instance for each VLAN configured in the network |
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802.1D-2004 |
This is an updated version of the STP standard, incorporating IEEE 802.1w |
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RSTP |
Rapid Spanning Tree Protocol (RSTP) or IEEE 802.1w Provides faster convergence than STP |
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Rapid PVST+ |
Cisco enhancement of RSTP that uses PVST+ and provides a separate instance of 802.1w per VLAN |
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MSTP |
Multiple Spanning Tree Protocol (MSTP) is an IEEE standard that maps multiple VLANs into the same spanning tree instance |
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MST |
Multiple Spanning Tree (MST) is the Cisco implementation of MSTP, providing up to 16 instances of RSTP, combining VLANs with the same physical and logical topology into a common RSTP instance |