In spanning tree, what is a Bridge ID (BID)?
A BID is an 8-byte field that is composed of the bridge’s 6-byte MAC address and a 2-byte bridge priority. What is the default bridge priority in a Bridge ID for all Cisco switches? 32,768 In spanning tree, what is path cost? Path cost is a calculation to determine the link’s bandwidth. It is a value assigned to each port that is based on the port’s speed. What is the spanning tree path cost for each of the following? 10 Mbps 100 Mbps 1 Gbps The path costs are as follows: 10 Mbps – 100 100 Mbps – 19 1 Gbps – 4 When calculating a loop-free environment, what four-step decision sequence does spanning tree use to determine what will be the root bridge and which ports will forward or block? The four-step decision sequence that spanning tree uses to determine the root bridge and which port will forward is as follows: • Step 1. The lowest root BID • Step 2. The lowest path cost to the root bridge • Step 3. The lowest sender BID • Step 4. The lowest port ID How do bridges pass spanning tree in
