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What is Bridge Protocol Data Unit mean?
Bridge Protocol Data Units (BPDUs) are frames that contain information about the spanning tree protocol (STP). A switch sends BPDUs using a unique source MAC address from its origin port to a multicast address with destination MAC (01:80:C2:00:00:00, or 01:00:0C:CC:CC:CD for Cisco proprietary Per VLAN Spanning Tree).
There are two kinds of BPDUs for 802.1D Spanning Tree:
Configuration BPDU, sent by root bridges to provide information to all switches.TCN (Topology Change Notification), sent by bridges towards the root bridge to notify changes in the topology, such as port up or port down.By default the BPDUs are sent every 2 seconds.
reference| Full Form | Category |
|---|---|
| Bridge Protocol Data Unit | Information Technology |
| Bridge Protocol Data Units | Networking |
Posted on 30 Oct 2024, this text provides information on Miscellaneous in Information Technology related to Information Technology. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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