01-15-2012, 10:15 AM
I personally think the answer is 2 paths... ADEH being the best path... AFEH being the alternate path.
You said 4 paths... but this is wrong because the variance rule states that that the alternate paths must be LESS THAN (variance X local best metric) The other 2 paths are EQUAL TO 60, which is the variance of 2 multiplied by the local best metric 30.
"The metric of the entire path (the FD of the alternative route) must be lower than the
variance multiplied by the local best metric (the current FD). In other words, the met-
ric for the entire alternate path must be within the variance." -CiscoPress book
Do you agree?
You said 4 paths... but this is wrong because the variance rule states that that the alternate paths must be LESS THAN (variance X local best metric) The other 2 paths are EQUAL TO 60, which is the variance of 2 multiplied by the local best metric 30.
"The metric of the entire path (the FD of the alternative route) must be lower than the
variance multiplied by the local best metric (the current FD). In other words, the met-
ric for the entire alternate path must be within the variance." -CiscoPress book
Do you agree?