What Two Items Make Up A Bridge Id?
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
What two items make up a Bridge ID?
Answer: The components that make up a bridge ID are the bridge priority and the MAC address.
The Bridge ID is a 64-bit modifier and the component that made it is 16bit priority bit and the MAC address of 48 bits. In the spanning tree protocol, the bridge ID is for the root bridge election methods between the switches in the network.
The priority value works as the criteria to locate the Bridge ID or switch ID. Two components are involved that made the bridge ID and they are listed in the following:
For the best applicant of the root bridge, the priority value of the switches is compared in the initial phase. The greater the value the less compatibility to become the candidate and the lower value means a higher chance to become the candidate. If the switch’s priority values are the same case then the next criteria to choose the applicant is the MAC address of the root switch. Lesser the MAC address greater the chance it will be. If all the values are the same then the less MAC address value will be selected as the root switch. Such as if the switch has MAC address 0200.0000.1111 and the other switch has a value 0200.0000.2222 both have the priority value 32768 then the first switch is selected as a root bridge.
Let’s take a look at the example, the bridge ID with the priority value 32768 while the MAC address 0200.0000.1111 is 32768.0200.0000.1111. as the default value of priority, the bridge is 32768 which is only configured as the multiples of 4096. By comparing the two bridge ID, the priority value is the first criteria while the MAC address is the use if the priority value is same.