5-4-3 rule and Bridges

mgmguy1mgmguy1 Member Posts: 485 ■■■■□□□□□□
Team I have a question here.

I am currently reading about Bridges when I noticed something.
It says here that " a Bridge can extend an Ethernet network without further extending a collision domain, or segment. In other words, by inserting a bridge into a network, you can add length beyond the maximum limits that apply to segments.

I thought the 5-4-3 rule which is for Ethernet networks can only have 3 segments that can be populated. The way the above text is reading that a bridge tosses the 5-4-3 rule out the windows.

Please advise
"A lot of fellows nowadays have a B.A., M.D., or Ph.D. Unfortunately, they don't have a J.O.B."

Fats Domino


  • Options
    WebmasterWebmaster Admin Posts: 10,292 Admin
    The 5-4-3 rule applies to extending 10base2 and 10base5 networks (and the collision domain) by using repeaters. Bridges split the network at the data link level (layer 2 instead of layer 1 as repeaters do) and are not susceptible to the 5-4-3 rule. You can even allow more than 4 repeaters in the same Ethernet LAN if you add a Bridge. I.o.w. you are reading that correctly.
Sign In or Register to comment.