The Function of Hop Count in EIGRP

[raizemaru]

Hi Everyone,

I've being confuse when I'm learning about EIGRP Protocol. I'm confuse about The Function of EIGRP hop count. As we know, 

for calculated the metric, EIGRP doesn't use hop count. So, what is the function of Hop Count in EIGRP ????. Can you explain to me..

Thank you..

- Fachrizal from Indonesia

[Cisco Freak]

Hi,

Hop count is not directly involved in the metric calculation, but its kind of loop avoidance mechanism.

R2#sh ip route  45.0.0.0
Routing entry for 45.0.0.0/8
  Known via "eigrp 100", distance 90, metric 33280, type internal
  Redistributing via eigrp 100
  Last update from 23.1.1.2 on FastEthernet0/1, 14:04:04 ago
  Routing Descriptor Blocks:
  * 23.1.1.2, from 23.1.1.2, 14:04:04 ago, via FastEthernet0/1
      Route metric is 33280, traffic share count is 1
      Total delay is 300 microseconds, minimum bandwidth is 100000 Kbit
      Reliability 255/255, minimum MTU 1500 bytes
      Loading 1/255, Hops 2

The default maximum hop is 100.

CF