EIGRP Manual Summarization

[Kruager]

EIGRP Manuel Summarization Konfigürasyonu









1. R1 Routerında bulunan ve konfigürasyon içerisinde loopback interfaceler ile tanımlanmış networkler S1/1 interface’inden Summarize edilmiştir.
2. Bu durumda R2 ve R3 routerlarının Routing Table’larındaki fark incelendiğinde Summarization’ın sağladığı avantaj görülebilir.
3. Auto Summarization özelliği kapatılmıştır.












Başlangıçta Routerların Routing Table’ları aşağıdaki gibidir..

 R1#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

Gateway of last resort is not set

     172.16.0.0/24 is subnetted, 1 subnets
D       172.16.3.0 [90/2297856] via 14.1.1.3, 00:00:58, Serial1/1
     172.30.0.0/24 is subnetted, 4 subnets
C       172.30.2.0 is directly connected, Loopback1
C       172.30.3.0 is directly connected, Loopback2
C       172.30.1.0 is directly connected, Loopback0
D       172.30.5.0 [90/2297856] via 12.1.1.2, 00:02:06, Serial1/0
     12.0.0.0/24 is subnetted, 1 subnets
C       12.1.1.0 is directly connected, Serial1/0
C    192.168.1.0/24 is directly connected, FastEthernet0/0
D    192.168.2.0/24 [90/2172416] via 12.1.1.2, 00:03:38, Serial1/0
     14.0.0.0/24 is subnetted, 1 subnets
C       14.1.1.0 is directly connected, Serial1/1
D    192.168.3.0/24 [90/2172416] via 14.1.1.3, 00:00:59, Serial1/1
R1#

 R2#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

Gateway of last resort is not set

     172.16.0.0/24 is subnetted, 1 subnets
D       172.16.3.0 [90/2809856] via 12.1.1.1, 00:01:40, Serial1/1
     172.30.0.0/24 is subnetted, 4 subnets
D       172.30.2.0 [90/2297856] via 12.1.1.1, 00:01:31, Serial1/1
D       172.30.3.0 [90/2297856] via 12.1.1.1, 00:01:31, Serial1/1
D       172.30.1.0 [90/2297856] via 12.1.1.1, 00:01:31, Serial1/1
C       172.30.5.0 is directly connected, Loopback0
     12.0.0.0/24 is subnetted, 1 subnets
C       12.1.1.0 is directly connected, Serial1/1
D    192.168.1.0/24 [90/2172416] via 12.1.1.1, 00:04:37, Serial1/1
C    192.168.2.0/24 is directly connected, FastEthernet0/0
     14.0.0.0/24 is subnetted, 1 subnets
D       14.1.1.0 [90/2681856] via 12.1.1.1, 00:01:41, Serial1/1
D    192.168.3.0/24 [90/2684416] via 12.1.1.1, 00:01:41, Serial1/1
R2#

 R3#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

Gateway of last resort is not set

     172.16.0.0/24 is subnetted, 1 subnets
C       172.16.3.0 is directly connected, Loopback0
     172.30.0.0/24 is subnetted, 4 subnets
D       172.30.2.0 [90/2297856] via 14.1.1.1, 00:02:03, Serial1/1
D       172.30.3.0 [90/2297856] via 14.1.1.1, 00:02:03, Serial1/1
D       172.30.1.0 [90/2297856] via 14.1.1.1, 00:02:03, Serial1/1
D       172.30.5.0 [90/2809856] via 14.1.1.1, 00:02:12, Serial1/1
     12.0.0.0/24 is subnetted, 1 subnets
D       12.1.1.0 [90/2681856] via 14.1.1.1, 00:02:12, Serial1/1
D    192.168.1.0/24 [90/2172416] via 14.1.1.1, 00:02:12, Serial1/1
D    192.168.2.0/24 [90/2684416] via 14.1.1.1, 00:02:12, Serial1/1
     14.0.0.0/24 is subnetted, 1 subnets
C       14.1.1.0 is directly connected, Serial1/1
C    192.168.3.0/24 is directly connected, FastEthernet0/0
R3#

R1 Routerın’da Manuel Summarization yapuıldıktan sonra R3 routerının Routing Table’ı daha özet hale gelecektir. R1 routeının konfigürasyonu şöyledir:

 R1#sh run
Building configuration...

Current configuration : 1557 bytes
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R1
!
interface Serial1/1
 ip address 14.1.1.1 255.255.255.0
 ip summary-address eigrp 99 172.30.0.0 255.255.0.0 5
!
router eigrp 99
 network 12.0.0.0
 network 14.0.0.0
 network 172.30.0.0
 network 192.168.1.0
 no auto-summary

!







Bu durumda R3 Routerının Routing Table’ı şu şekilde değişmiştir;

 R3#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

Gateway of last resort is not set

     172.16.0.0/24 is subnetted, 1 subnets
C       172.16.3.0 is directly connected, Loopback0
D    172.30.0.0/16 [90/2297856] via 14.1.1.1, 00:00:06, Serial1/1
     12.0.0.0/24 is subnetted, 1 subnets
D       12.1.1.0 [90/2681856] via 14.1.1.1, 00:00:06, Serial1/1
D    192.168.1.0/24 [90/2172416] via 14.1.1.1, 00:00:06, Serial1/1
D    192.168.2.0/24 [90/2684416] via 14.1.1.1, 00:00:06, Serial1/1
     14.0.0.0/24 is subnetted, 1 subnets
C       14.1.1.0 is directly connected, Serial1/1
C    192.168.3.0/24 is directly connected, FastEthernet0/0
R3#

R1 Routerında ise olası bir loop’u önlemek amacıyla 172.30.0.0 networkü için Null0’a bir yönlendirme otomatik olarak eklenmiştir.

 R1#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

Gateway of last resort is not set

     172.16.0.0/24 is subnetted, 1 subnets
D       172.16.3.0 [90/2297856] via 14.1.1.3, 00:03:40, Serial1/1
     172.30.0.0/16 is variably subnetted, 5 subnets, 2 masks
C       172.30.2.0/24 is directly connected, Loopback1
C       172.30.3.0/24 is directly connected, Loopback2
D       172.30.0.0/16 is a summary, 00:03:45, Null0
C       172.30.1.0/24 is directly connected, Loopback0
D       172.30.5.0/24 [90/2297856] via 12.1.1.2, 00:09:39, Serial1/0
     12.0.0.0/24 is subnetted, 1 subnets
C       12.1.1.0 is directly connected, Serial1/0
C    192.168.1.0/24 is directly connected, FastEthernet0/0
D    192.168.2.0/24 [90/2172416] via 12.1.1.2, 00:11:11, Serial1/0
     14.0.0.0/24 is subnetted, 1 subnets
C       14.1.1.0 is directly connected, Serial1/1
D    192.168.3.0/24 [90/2172416] via 14.1.1.3, 00:03:43, Serial1/1
R1#