coming to check Groupstudy, I was going though a CCIE practice exam, and it asks "What's used by EIGRP to determine the best path?" and for the answer it lists all five items, not just the four (that we all agree are used in metric computation). Now, given that we know the formula for the EIGRP metric (that doesn't include MTU), and given the recent thread about which routes are used in the routing table (i.e. routes with the longest mask, lowest AD, etc), would you agree that the above sample question is incorrect, or does EIGRP actually use MTU to aid in determining the best path? If so, how/where? I'd like to know so I can get on to other issues like MPLS, etc before I take this beta =)
Regarding my comment about the recalculations related to K1-K5, I got it now...... At first I was like "Why would there by any more recalcs than normal", but as Kevin pointed out, load, etc can vary over time, whereas bandwidth and delay are constant. Second, I was thinking "Okay, then I can see that causing recalcs that affect the routing table, but the topology table?", so I hopped into an EIGRP router and with "show ip eigrp top" saw where I wasn't thinking. The topology table not only keeps the metric for a given route and it's feasible successor, etc so yeah... now I get it =) I'm slow sometimes, but I usually come around =) Mike W. "Priscilla Oppenheimer" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Reliability and load are dynamically calculated. They change frequently. > Their changes could cause the routing table to change too, maybe more than > you would want. Delay and bandwidth are not dynamically calculated. "Kevin Cullimore" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > I'd expect that the values they are multiplied by would change if they are > truly based upon data derived from the interface counters, which are > certainly subject to potentially vast fluctuations in absence of topology > changes Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=42117&t=42103 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
