default[k1=1, k2=0, k3=1, k4=0, k5=0]
from Source R0 to destination R4 loopback 0 100.100.100.100
All serial segments Bandwidth, Delay are the same.
Equal path load balancing.
hostname R0
interface Serial0/0
ip address 10.0.1.1 255.255.255.252
interface Serial0/1
ip address 10.0.2.1 255.255.255.252
interface Serial0/2
ip address 10.0.3.1 255.255.255.252
router eigrp 1
network 10.0.1.1 0.0.0.0
network 10.0.2.1 0.0.0.0
network 10.0.3.1 0.0.0.0
hostname R1
interface Serial0/0
ip address 10.1.1.1 255.255.255.252
interface Serial0/1
ip address 10.0.1.2 255.255.255.252
router eigrp 1
network 10.0.1.2 0.0.0.0
network 10.1.1.1 0.0.0.0
hostname R2
interface Serial0/0
ip address 10.1.2.1 255.255.255.252
interface Serial0/1
ip address 10.0.2.2 255.255.255.252
router eigrp 1
network 10.0.2.2 0.0.0.0
network 10.1.2.1 0.0.0.0
hostname R3
interface Serial0/0
ip address 10.1.3.1 255.255.255.252
interface Serial0/1
ip address 10.0.3.2 255.255.255.252
router eigrp 1
network 10.0.3.2 0.0.0.0
network 10.1.3.1 0.0.0.0
hostname R4
interface Loopback0
ip address 100.100.100.100 255.255.255.255
interface Serial0/0
ip address 10.1.1.2 255.255.255.252
interface Serial0/1
ip address 10.1.2.2 255.255.255.252
interface Serial0/2
ip address 10.1.3.2 255.255.255.252
router eigrp 1
network 10.1.1.2 0.0.0.0
network 10.1.2.2 0.0.0.0
network 10.1.3.2 0.0.0.0
network 100.100.100.100 0.0.0.0
R0#show ip route [FD=(rounddown(10^7/the lowest bandwidth)+sum_dalay/10)*256=2401792]
D 100.0.0.0/8 [90/2401792] via 10.0.2.2, 00:05:29, Serial0/1
[90/2401792] via 10.0.1.2, 00:05:29, Serial0/0
[90/2401792] via 10.0.3.2, 00:05:29, Serial0/2
10.0.0.0/30 is subnetted, 6 subnets
D 10.1.3.0 [90/2273792] via 10.0.3.2, 00:05:29, Serial0/2
C 10.0.2.0 is directly connected, Serial0/1
D 10.1.2.0 [90/2273792] via 10.0.2.2, 00:05:29, Serial0/1
C 10.0.3.0 is directly connected, Serial0/2
D 10.1.1.0 [90/2273792] via 10.0.1.2, 00:05:29, Serial0/0
C 10.0.1.0 is directly connected, Serial0/0
from R0 to R1, R2, R3 successor same metric(cost) [FD,AD] -- > equal load balancing
R0#traceroute 100.100.100.100
Type escape sequence to abort.
Tracing the route to 100.100.100.100
1 10.0.2.2 20 msec
10.0.3.2 44 msec
10.0.1.2 72 msec
2 10.1.2.2 124 msec
10.1.3.2 88 msec
10.1.1.2 60 msec
R0#show ip eigrp topology all-links
IP-EIGRP Topology Table for AS(1)/ID(10.0.3.1)
P 10.1.3.0/30, 1 successors, FD is 2273792, serno 5
via 10.0.3.2 (2273792/1761792), Serial0/2
via 10.0.2.2 (2785792/2273792), Serial0/1
via 10.0.1.2 (2785792/2273792), Serial0/0
P 10.0.2.0/30, 1 successors, FD is 1761792, serno 2
via Connected, Serial0/1
P 10.1.2.0/30, 1 successors, FD is 2273792, serno 8
via 10.0.2.2 (2273792/1761792), Serial0/1
via 10.0.3.2 (2785792/2273792), Serial0/2
via 10.0.1.2 (2785792/2273792), Serial0/0
P 10.0.3.0/30, 1 successors, FD is 1761792, serno 3
via Connected, Serial0/2
P 10.1.1.0/30, 1 successors, FD is 2273792, serno 4
via 10.0.1.2 (2273792/1761792), Serial0/0
via 10.0.3.2 (2785792/2273792), Serial0/2
via 10.0.2.2 (2785792/2273792), Serial0/1
P 10.0.1.0/30, 1 successors, FD is 1761792, serno 1
via Connected, Serial0/0
P 100.0.0.0/8, 3 successors, FD is 2401792, serno 10
via 10.0.3.2 (2401792/1889792), Serial0/2 <-- successor
via 10.0.1.2 (2401792/1889792), Serial0/0 <-- successor
via 10.0.2.2 (2401792/1889792), Serial0/1 <-- successor up to 4 successors by default
up to 6 manually [maximum-paths]
R0#show ip protocols
Routing Protocol is "eigrp 1"
Outgoing update filter list for all interfaces is
Incoming update filter list for all interfaces is
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
EIGRP maximum hopcount 100
EIGRP maximum metric variance 1
Redistributing: eigrp 1
Automatic network summarization is in effect
Routing for Networks:
10.0.1.1/32
10.0.2.1/32
10.0.3.1/32
Routing Information Sources:
Gateway Distance Last Update
10.0.1.2 90 00:00:47
10.0.2.2 90 00:00:47
10.0.3.2 90 00:00:47
Distance: internal 90 external 170
All serial segments Bandwidth, Delay are not the same.
Unequal load balancing path
hostname R0
interface Serial0/0
bandwidth 10000000
ip address 10.0.1.1 255.255.255.252
delay 10
interface Serial0/1
bandwidth 10000000
ip address 10.0.2.1 255.255.255.252
delay 15
interface Serial0/2
bandwidth 10000000
ip address 10.0.3.1 255.255.255.252
delay 30
router eigrp 1
network 10.0.1.1 0.0.0.0
network 10.0.2.1 0.0.0.0
network 10.0.3.1 0.0.0.0
hostname R1
interface Serial0/0
bandwidth 10000000
ip address 10.1.1.1 255.255.255.252
delay 10
interface Serial0/1
bandwidth 10000000
ip address 10.0.1.2 255.255.255.252
delay 10
router eigrp 1
network 10.0.1.2 0.0.0.0
network 10.1.1.1 0.0.0.0
hostname R2
interface Serial0/0
bandwidth 10000000
ip address 10.1.2.1 255.255.255.252
delay 15
interface Serial0/1
bandwidth 10000000
ip address 10.0.2.2 255.255.255.252
delay 15
router eigrp 1
network 10.0.2.2 0.0.0.0
network 10.1.2.1 0.0.0.0
hostname R3
interface Serial0/0
bandwidth 10000000
ip address 10.1.3.1 255.255.255.252
delay 30
interface Serial0/1
bandwidth 10000000
ip address 10.0.3.2 255.255.255.252
delay 30
router eigrp 1
network 10.0.3.2 0.0.0.0
network 10.1.3.1 0.0.0.0
hostname R4
interface Loopback0
bandwidth 10000000
ip address 100.100.100.100 255.255.255.255
delay 20
interface Serial0/0
bandwidth 10000000
ip address 10.1.1.2 255.255.255.252
delay 10
interface Serial0/1
bandwidth 10000000
ip address 10.1.2.2 255.255.255.252
delay 15
interface Serial0/2
bandwidth 10000000
ip address 10.1.3.2 255.255.255.252
delay 30
router eigrp 1
network 10.1.1.2 0.0.0.0
network 10.1.2.2 0.0.0.0
network 10.1.3.2 0.0.0.0
network 100.100.100.100 0.0.0.0
R0#show ip route
D 100.0.0.0/8 [90/10496] via 10.0.1.2, 00:09:58, Serial0/0 <- only successor
10.0.0.0/30 is subnetted, 6 subnets
D 10.1.3.0 [90/13056] via 10.0.1.2, 00:09:58, Serial0/0
C 10.0.2.0 is directly connected, Serial0/1
D 10.1.2.0 [90/7936] via 10.0.2.2, 00:09:58, Serial0/1
C 10.0.3.0 is directly connected, Serial0/2
D 10.1.1.0 [90/5376] via 10.0.1.2, 00:09:58, Serial0/0
C 10.0.1.0 is directly connected, Serial0/0
R0#traceroute 100.100.100.100
Type escape sequence to abort.
Tracing the route to 100.100.100.100
1 10.0.1.2 68 msec 28 msec 28 msec <--- only successor
2 10.1.1.2 48 msec 60 msec *
R0#show ip eigrp topology all-links
IP-EIGRP Topology Table for AS(1)/ID(10.0.3.1)
P 10.1.3.0/30, 1 successors, FD is 13056, serno 6
via 10.0.1.2 (13056/10496), Serial0/0
via 10.0.2.2 (15616/11776), Serial0/1
via 10.0.3.2 (15616/7936), Serial0/2
P 10.0.2.0/30, 1 successors, FD is 4096, serno 2
via Connected, Serial0/1
P 10.1.2.0/30, 1 successors, FD is 7936, serno 4
via 10.0.2.2 (7936/4096), Serial0/1
via 10.0.3.2 (19456/11776), Serial0/2
via 10.0.1.2 (9216/6656), Serial0/0
P 10.0.3.0/30, 1 successors, FD is 7936, serno 3
via Connected, Serial0/2
P 10.1.1.0/30, 1 successors, FD is 5376, serno 5
via 10.0.1.2 (5376/2816), Serial0/0
via 10.0.3.2 (18176/10496), Serial0/2
via 10.0.2.2 (10496/6656), Serial0/1
P 10.0.1.0/30, 1 successors, FD is 2816, serno 1
via Connected, Serial0/0
P 100.0.0.0/8, 1 successors, FD is 10496, serno 7
via 10.0.1.2 (10496/7936), Serial0/0 <-- Successor, the lowest FD
via 10.0.3.2 (20736/13056), Serial0/2 <-- NON-feasible successor, successor FD < R3 AD
via 10.0.2.2 (13056/9216), Serial0/1 <-- Feasible successor,successor FD > R2 AD
Unequal path load balanced
hostname R0
router eigrp 1
variance 2 <---10496 * 2(variance) > AD value load balancing
network 10.0.1.1 0.0.0.0
network 10.0.2.1 0.0.0.0
network 10.0.3.1 0.0.0.0
R0#show ip route
D 100.0.0.0/8 [90/13056] via 10.0.2.2, 00:01:57, Serial0/1 <-- feasible successor
[90/10496] via 10.0.1.2, 00:01:57, Serial0/0 <-- successor
10.0.0.0/30 is subnetted, 6 subnets
D 10.1.3.0 [90/15616] via 10.0.3.2, 00:01:57, Serial0/2
[90/15616] via 10.0.2.2, 00:01:57, Serial0/1
[90/13056] via 10.0.1.2, 00:01:57, Serial0/0
C 10.0.2.0 is directly connected, Serial0/1
D 10.1.2.0 [90/7936] via 10.0.2.2, 00:01:57, Serial0/1
[90/9216] via 10.0.1.2, 00:01:57, Serial0/0
C 10.0.3.0 is directly connected, Serial0/2
D 10.1.1.0 [90/5376] via 10.0.1.2, 00:01:57, Serial0/0
C 10.0.1.0 is directly connected, Serial0/0
R0#traceroute 100.100.100.100
[Unequal Load Balanced]
Tracing the route to 100.100.100.100
1 10.0.1.2 36 msec
10.0.2.2 44 msec
10.0.1.2 12 msec
2 10.1.2.2 72 msec
10.1.1.2 72 msec
10.1.2.2 88 msec
R0#show ip eigrp topology all-links
P 10.1.3.0/30, 1 successors, FD is 13056, serno 10
via 10.0.1.2 (13056/10496), Serial0/0
via 10.0.3.2 (15616/7936), Serial0/2
via 10.0.2.2 (15616/11776), Serial0/1
P 10.0.2.0/30, 1 successors, FD is 4096, serno 2
via Connected, Serial0/1
P 10.1.2.0/30, 1 successors, FD is 7936, serno 4
via 10.0.2.2 (7936/4096), Serial0/1
via 10.0.1.2 (9216/6656), Serial0/0
via 10.0.3.2 (19456/11776), Serial0/2
P 10.0.3.0/30, 1 successors, FD is 7936, serno 3
via Connected, Serial0/2
P 10.1.1.0/30, 1 successors, FD is 5376, serno 5
via 10.0.1.2 (5376/2816), Serial0/0
via 10.0.2.2 (10496/6656), Serial0/1
via 10.0.3.2 (18176/10496), Serial0/2
P 10.0.1.0/30, 1 successors, FD is 2816, serno 1
via Connected, Serial0/0
P 100.0.0.0/8, 1 successors, FD is 10496, serno 11
via 10.0.1.2 (10496/7936), Serial0/0 <- Successor, the lowest FD
via 10.0.2.2 (13056/9216), Serial0/1 <- Feasible successor,successor FD > R2 AD
via 10.0.3.2 (20736/13056), Serial0/2 <- NON-feasible successor, successor FD < R3 AD
출처 : http://blog.naver.com/bobos_neo
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