Components of the EIGRP Metrics Calculation In basic terms, the values are K1 - K5 are multipliers that give preference to the metric components of bandwidth, load, delay, reliability, and MTU.
a.. By default: K1 = 1, K2 = 0, K3 = 1, K4 = 0, K5 = 0. a.. Delay is the sum of all the delays of the links along the paths. a.. Bandwidth is the lowest bandwidth of the links along the paths. Component Equation Delay [Delay in 10s of microseconds] x 256 Bandwidth [10000000 / (bandwidth in Kbps)] x 256 EIGRP uses this formula to calculate a metric if K5 is not equal to 0: X If K5 is equal to 0, then the metric formula is: If K1 = 1, K2 = 0, and K3 = 1: Metric = bandwidth + delay In basic terms K1 = bandwidth K2 = Load K3 = delay K4 = reliability K5 = MTU wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > I failed maths dismally at school now im faced with this metric stuff ... > > IGRP calculates the metric by adding together weighted values of different > characteristics of the link to the network in question. These values > (bandwidth, bandwidth divided by load, and delay) are weighted with the > constants K1, K2, and K3. Here's the formula: > > > Metric = K1 * BandW (K2 * BandW)/(256-load) K3*Delay > The default constant values are K1=K3=1 and K2=K4=K5=0, so: > > > Metric = BandW Delay > If K5 does not equal 0, an additional operation is done: > > > Metric = Metric * [K5/(reliability K4)] > To find BandW, find the smallest of all the bandwidths from outgoing > interfaces and divide 10,000,000 by that number. (The bandwidth is scaled by > 10,000,000 in kilobits per second.) > > ... can anyone put this into very very simple terms i don't understand how > the K values work > > a prize will be awarded to the reply i understand :?\ > > TIA Dave [demime removed a uuencoded section named clip_image002.gif which was 25 lines] [demime removed a uuencoded section named clip_image004.gif which was 14 lines] [demime removed a uuencoded section named clip_image005.gif which was 25 lines] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=31650&t=31631 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]