I believe the 5-4-3 rule is for repeaters, not switches.
""Brian Hill"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Steven, > > The 7 hop limit is from the root bridge, as STP calculates the tree from the > root. Historically, I am not sure why it's 7, but Ethernet has a base hop > "limit" of 4 switches (5-4-3 rule), so it doesn't really matter so much. The > reason for the 4 hop limit in Ethernet is simple: For 10 Mb or full duplex > 100 Mb connections, the limit is mostly to reduce noise from the > amplification of the signal as it passes through the switches/hubs, where as > in 100Mb half-duplex connections, it is mostly to keep the propogation delay > within specs. > > Hope this helps, > > Brian Hill > CCNP, CCDP, MCSE 2000 (Charter Member),MCSE+I (NT4.0), > MCSA (Charter Member), MCP+I, MCP(21), Inet+, Net+, A+ > Lead Technology Architect, TechTrain > Author: Cisco, The Complete Reference > http://www.alfageek.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=44431&t=44408 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
