Lab 9 EIGRP - Mindah Jalur (Delay)

Assalamu'alaikum Warohmatullahi Wabarokatuh...
baik sahabat configer kali ini saya akan sedikit sharing mengenai EIGRP - Mindah Jalur - Delay

Kondisi normal trafik dari R1 menuju Loopback R3 adalah langsung menuju ke R3 melalui interface f0/0 karena perhitungan bandwithnya Fastethernetnya. Nah jika sahabat configer semua ingin agar trafiknya melewati R2 terlebih dahulu maka paraeter metric bisa kita rubah agar memenuhi hal tersebut  salah satunya adalah dengan delay.

pastikan router satu sama lain sudah terhubung dengan menggunakan routing eigrp, setelah itu kita setting R1 nya

kondisi awal R1 adalah seperti ini

R1(config)#do sh ip route 3.3.3.3
Routing entry for 3.3.3.3/32
Known via "eigrp 10", distance 90, metric 156160, type internal
Redistributing via eigrp 10
Last update from 13.13.13.3 on FastEthernet0/0, 00:01:27 ago
Routing Descriptor Blocks:
* 13.13.13.3, from 13.13.13.3, 00:01:27 ago, via FastEthernet0/0
Route metric is 156160, traffic share count is 1
Total delay is 5100 microseconds, minimum bandwidth is 100000 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1

R1(config)#do trace 3.3.3.3
Type escape sequence to abort.
Tracing the route to 3.3.3.3
VRF info: (vrf in name/id, vrf out name/id)

  1 13.13.13.3 16 msec 16 msec 20 msec

kita bisa melakukan pengecekan ada berapa jalur menuju ip 3.3.3.3/32

R1(config)#do sh ip eigrp top 3.3.3.3 255.255.255.255
EIGRP-IPv4 Topology Entry for AS(10)/ID(1.1.1.1) for 3.3.3.3/32
State is Passive, Query origin flag is 1, 1 Successor(s), FD is 156160
Descriptor Blocks:
13.13.13.3 (FastEthernet0/0), from 13.13.13.3, Send flag is 0x0
Composite metric is (156160/128256), route is Internal
Vector metric:
Minimum bandwidth is 100000 Kbit
Total delay is 5100 microseconds
Reliability is 255/255
Load is 1/255
Minimum MTU is 1500
Hop count is 1
Originating router is 3.3.3.3
12.12.12.2 (Serial1/0), from 12.12.12.2, Send flag is 0x0
Composite metric is (2300416/156160), route is Internal
Vector metric:
Minimum bandwidth is 1544 Kbit
Total delay is 25100 microseconds
Reliability is 255/255
Load is 1/255
Minimum MTU is 1500
Hop count is 2
Originating router is 3.3.3.3

bisa kita lihat diatas bandwith f0/0 (10000) lebih cepat dibandingkan pada serial (1544) sedangkan nilai delay FastEthernet (5100) lebih kecil daripada delay serial (25100), nah untuk mengubah jalurnya kita bisa memanipulasi nilai metric dengan merubah delay

R1(config)#int f0/0
R1(config-if)#delay 100000
R1(config-if)#do clear ip eigrp ne 
R1(config-if)#
*May  4 21:24:54.487: %DUAL-5-NBRCHANGE: EIGRP-IPv4 10: Neighbor 12.12.12.2 (Serial1/0) is down: manually cleared
*May  4 21:24:54.503: %DUAL-5-NBRCHANGE: EIGRP-IPv4 10: Neighbor 13.13.13.3 (FastEthernet0/0) is down: manually cleared
R1(config-if)#
*May  4 21:24:58.479: %DUAL-5-NBRCHANGE: EIGRP-IPv4 10: Neighbor 13.13.13.3 (FastEthernet0/0) is up: new adjacency
*May  4 21:24:58.815: %DUAL-5-NBRCHANGE: EIGRP-IPv4 10: Neighbor 12.12.12.2 (Serial1/0) is up: new adjacency

selanjutnya kita cek kembali EIGRP topologinya

R1(config-if)#do sh ip eigrp top 3.3.3.3 255.255.255.255
EIGRP-IPv4 Topology Entry for AS(10)/ID(1.1.1.1) for 3.3.3.3/32
  State is Passive, Query origin flag is 1, 1 Successor(s), FD is 2300416
  Descriptor Blocks:
  12.12.12.2 (Serial1/0), from 12.12.12.2, Send flag is 0x0
      Composite metric is (2300416/156160), route is Internal
      Vector metric:
        Minimum bandwidth is 1544 Kbit
        Total delay is 25100 microseconds
        Reliability is 255/255
        Load is 1/255
        Minimum MTU is 1500
        Hop count is 2
        Originating router is 3.3.3.3
  13.13.13.3 (FastEthernet0/0), from 13.13.13.3, Send flag is 0x0
      Composite metric is (25753600/128256), route is Internal
      Vector metric:
        Minimum bandwidth is 100000 Kbit
        Total delay is 1005000 microseconds
        Reliability is 255/255
        Load is 1/255
        Minimum MTU is 1500
        Hop count is 1
        Originating router is 3.3.3.3

bisa kita lihat diatas delaynya bertambah besar
sekarang kita cek apakah jalurnya sudah berpindah melalui serial apa tidak

R1(config-if)#do sh ip route 3.3.3.3
Routing entry for 3.3.3.3/32
Known via "eigrp 10", distance 90, metric 2300416, type internal
Redistributing via eigrp 10
Last update from 12.12.12.2 on Serial1/0, 00:12:29 ago
Routing Descriptor Blocks:
* 12.12.12.2, from 12.12.12.2, 00:12:29 ago, via Serial1/0
Route metric is 2300416, traffic share count is 1
Total delay is 25100 microseconds, minimum bandwidth is 1544 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 2

R1(config-if)#do trace 3.3.3.3
Type escape sequence to abort.
Tracing the route to 3.3.3.3
VRF info: (vrf in name/id, vrf out name/id)
1 12.12.12.2 20 msec 20 msec 20 msec
2 23.23.23.3 40 msec 40 msec 40 msec

oke sahabat configer semua bisa kita lihat jalurnya sudah berpindah jadi menggunakan serial yang memiliki ip 12.12.12.2 yang berarti nantinya tidak akan langsung ke R3 tapi melalui R2 terlebih dahulu sebelum ke R3.Alhamdulillah postingan kali ini telah selesai, jika artikel ini terasa bermanfaat silahkan bisa di share dengan menekan salah satu button dibawah ini.

Wassalamu'alaikum ...

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