3.5.f equal-cost (EIGRP)

eigrp_equal_cost

equal cost over two paths from r1 to network 192.168.23.0/24…

r1#sh ip route 192.168.23.0
Routing entry for 192.168.23.0/24
Known via “eigrp 1”, distance 90, metric 30720, type internal
Redistributing via eigrp 1
Last update from 192.168.12.2 on FastEthernet0/0, 00:05:49 ago
Routing Descriptor Blocks:
* 192.168.13.3, from 192.168.13.3, 00:05:49 ago, via FastEthernet1/0
Route metric is 30720, traffic share count is 1
Total delay is 200 microseconds, minimum bandwidth is 100000 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1
192.168.12.2, from 192.168.12.2, 00:05:49 ago, via FastEthernet0/0
Route metric is 30720, traffic share count is 1
Total delay is 200 microseconds, minimum bandwidth is 100000 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1

this can also be viewed from the topology table…

r1#sh ip eigrp topo 192.168.23.0
IP-EIGRP (AS 1): Topology entry for 192.168.23.0/24
State is Passive, Query origin flag is 1, 2 Successor(s), FD is 30720
Routing Descriptor Blocks:
192.168.12.2 (FastEthernet0/0), from 192.168.12.2, Send flag is 0x0
Composite metric is (30720/28160), Route is Internal
Vector metric:
Minimum bandwidth is 100000 Kbit
Total delay is 200 microseconds
Reliability is 255/255
Load is 1/255
Minimum MTU is 1500
Hop count is 1
192.168.13.3 (FastEthernet1/0), from 192.168.13.3, Send flag is 0x0
Composite metric is (30720/28160), Route is Internal
Vector metric:
Minimum bandwidth is 100000 Kbit
Total delay is 200 microseconds
Reliability is 255/255
Load is 1/255
Minimum MTU is 1500
Hop count is 1

eigrp defaults load sharing across equal cost paths…

r1#sh ip route | b Gate
Gateway of last resort is not set

C    192.168.12.0/24 is directly connected, FastEthernet0/0
1.0.0.0/24 is subnetted, 1 subnets
C       1.1.1.0 is directly connected, Loopback0
C    192.168.13.0/24 is directly connected, FastEthernet1/0
2.0.0.0/24 is subnetted, 1 subnets
D       2.2.2.0 [90/156160] via 192.168.12.2, 00:10:07, FastEthernet0/0
3.0.0.0/24 is subnetted, 1 subnets
D       3.3.3.0 [90/156160] via 192.168.13.3, 00:10:07, FastEthernet1/0
D    192.168.23.0/24 [90/30720] via 192.168.13.3, 00:10:09, FastEthernet1/0
                     [90/30720] via 192.168.12.2, 00:10:09, FastEthernet0/0