Config Register is 0x4a6f6469

Menyambung materi Frame Relay – 01. Kali ini implementasi Frame Relay menggunakan topologi yang lebih kompleks. Seperti pada gambar topologi fisik di bawah. R2 tetap menjadi frame relay switching atau sisi provider (penyedia layanan frame relay), untuk client site ada R1 [headquarter office] dan tiga branch office yaitu, R3, R4, dan R5.

 

Topologi logikal bisa dilihat pada gambar dibawah.

 

R1 menggunakan sub-interface s1/0.1 yang terkoneksi point-to-point ke R3. Dan sub-interface s1/0.2 yang terkoneksi multipoint ke R4 dan R5. EIGRP digunakan sebagai routing protocol.

Yang perlu dicermati adalah penggunaan multipoint interface/sub-interface. Dengan multipoint maka sub-interface s1/0.2 hanya melihat koneksi ke R4 dan R5 sebagai satu koneksi saja bukan dua. Hal ini menyebabkan informasi routing table dari R4 tidak dapat diterima oleh R5. Karena adanya metode split horizon yang mencegah informasi routing table kembali kepada interface yang sama dari arah dating informasi routing table. Untuk menghindari hal ini, maka command ‘no ip split-horizon eigrp [as number]’ digunakan pada router yang menjadi multipoint interface/sub-interface.

R1:
conf t
int s1/0
encapsulation frame-relay
no frame-relay inverse-arp
no arp frame-relay
frame-relay lmi-type cisco
no shut
int s1/0.1 point-to-point
ip address 10.1.1.1 255.255.255.0
frame-relay interface-dlci 102

R3:
conf t
int s1/1
encapsulation frame-relay
no frame-relay inverse-arp
no arp frame-relay
frame-relay lmi-type ansi
ip address 10.1.1.3 255.255.255.0
frame-relay map ip 10.1.1.1 201 broadcast
no shut

R2 [Frame Relay Switching]:
conf t
frame-relay switching
int s1/0
encapsulation frame-relay
frame-relay intf-type dce
frame-relay lmi-type cisco
frame-relay route 102 int s1/1 201
no shut
int s1/1
encapsulation frame-relay
frame-relay intf-type dce
frame-relay lmi-type ansi
frame-relay route 201 int s1/0 102
no shut

Tes ping dari R1 ke R3 sukses ! Koneksi sudah terbentuk

 

 

Konfigurasi untuk R1, R4, dan R5 dengan multipoint.

R1:
conf t
int s1/0.2 multipoint
ip address 172.16.1.1 255.255.255.0
frame-relay map ip 172.16.1.4 103 broadcast
frame-relay map ip 172.16.1.5 104 broadcast

R4:
conf t
int s1/2
encapsulation frame-relay
no frame-relay inverse arp
no arp frame-relay
frame-relay lmi-type q933a
ip address 172.16.1.4 255.255.255.0
frame-relay map ip 172.16.1.1 301 broadcast
frame-relay map ip 172.16.1.5 301 broadcast
no shut

R5:
conf t
int s1/3
encapsulation frame-relay
no frame-relay inverse arp
no arp frame-relay
frame-relay lmi-type q933a
ip address 172.16.1.5 255.255.255.0
frame-relay map ip 172.16.1.1 401 broadcast\
frame-relay map ip 172.16.1.4 401 broadcast
no shut

R2 [Frame Relay Switching]:
conf t
int s1/0
frame-relay route 103 int s1/2 301
frame-relay route 104 int s1/3 401
no shut
int s1/2
encapsulation frame-relay
no frame-relay inverse arp
no arp frame-relay
frame-relay intf-type dce
frame-relay lmi-type q933a
frame-relay route 301 int s1/0 103
no shut
int s1/3
encapsulation frame-relay
no frame-relay inverse arp
no arp frame-relay
frame-relay intf-type dce
frame-relay lmi-type q933a
frame-relay route 401 int s1/0 104
no shut

Tes ping dari R4 ke R5 sukses !

 

 
Berikutnya implementasi EIGRP pada jaringan frame relay.

R1:
conf t
router eigrp 1
no auto-summary
network 10.1.1.0 0.0.0.255
network 172.16.1.0 0.0.0.255
exit
int s1/0.2
no ip split-horizon eigrp 1

R3:
conf t
router eigrp 1
no auto-summary
network 10.1.1.0 0.0.0.255

R4:
conf t
router eigrp 1
no auto-summary
network 172.16.1.0 0.0.0.255

R5:
conf t
router eigrp 1
no auto-summary
network 172.16.1.0 0.0.0.255

Tes ping dari R3 ke R4 sukses !

 

 

Tes ping dari R4 ke R3 sukses !

 

Tes ping dari R5 ke R3 sukses !

 

 

Frame Relay merupakan salah satu teknologi WAN yang masih banyak digunakan. Kita akan mengkonfigurasi topologi Frame Relay baik dari sisi client yang diwakili R1 [Headquarter Office] dan R3 [Branch Office], maupun dari sisi Frame Relay Switching yang diwakili R2 [ISP - Internet Service Provider] sebagai penyedia layanan tersebut.

 

 

R1:
conf t
int s1/0
encapsulation frame-relay
no frame-relay inverse-arp
no arp frame-relay
frame-relay lmi-type cisco
ip address 10.1.1.1 255.255.255.0
frame-relay map ip 10.1.1.2 102 broadcast
no shut

R3:
conf t
int s1/1
encapsulation frame-relay
no frame-relay inverse-arp
no arp frame-relay
frame-relay lmi-type q933a
ip address 10.1.1.2 255.255.255.0
frame-relay map ip 10.1.1.1 201 broadcast
no shut

R2 [Frame Relay Switching]:
conf t
frame-relay switching
int s1/0
encapsulation frame-relay
frame-relay intf-type dce
frame-relay lmi-type cisco
frame-relay route 102 int s1/1 201
no shut
int s1/1
encapsulation frame-relay
frame-relay intf-type dce
frame-relay lmi-type q933a
frame-relay route 201 int s1/0 102
no shut

Melakukan ping dari R1 ke R3, dan aktifkan debug frame-relay packet pada R3 untuk melihat packet icmp yang dilewatkan melalui topologi Frame Relay.

 

 

 

For a while, I can only used Cisco Catalyst Switch 1900 version.

Because that’s the only available switch in my labs. And I’ve been reading on CNAP documents, most of example are made with 2900 version. So I’m still curious to try that version. And the command line interface for 2900 version is more complex too.

But, meanwhile I just maximize all that I’ve got.
And here it is, the simply and short Basic Switch Configuration (BSC) for ‘must-do’ when working with switch.

 
console:

switch> enable

switch# conf t

switch(config)# hostname switch-A

switch-A(config)# enable password level 15 cisco

switch-A(config)# ip address 192.168.1.11 255.255.255.0

 

As mention before, Trunk is a physical connection containing logical connection to connected VLANs. How many logical connection can be made inside the Trunk is depend on how many VLAN used.

In this topic, I will talk about how to setup VLAN-Trunking. This topology made possible for different VLANs connected each other. Router is needed, because communication between VLANs are based on network layer using IP address. We can say that router act as a gateway for each VLANs.

That is the main different with previous topology, VLAN-Switch and VLAN-Switches, those are based on data link layer using MAC Address

Click VLAN-Trunking.jpg to see image

scenario:

Switch-A has VLAN 10 on port e0/1, and VLAN 20 on port e0/2. Fa0/27 (fast ethernet port) is connected to access point. Fa0/26 made a trunk connection to Fa0/26 switch-B.

Switch-B has VLAN 10 on port e0/1, and VLAN 20 on port e0/2. Fa0/27 made a trunk connection to Fa0/0 on router.

 

console:

switch-A:

switch> enable

switch# conf t

switch(config)# hostname switch-A

switch-A(config)# enable password level 15 cisco

switch-A(config)# ip address 192.168.1.11 255.255.255.0

switch-A(config)# vlan 10 name Group-A

switch-A(config)# vlan 20 name Group-B

switch-A(config)# int fa0/26

switch-A(config-if)# trunk on

switch-A(config-if)# exit

switch-A(config)# int e0/1

switch-A(config-if)# vlan-membership static 10

switch-A(config-if)# exit

switch-A(config)# int e0/2

switch-A(config-if)# vlan-membership static 20

 

switch-B:

switch> enable

switch# conf t

switch(config)# hostname switch-B

switch-B(config)# enable password level 15 cisco

switch-B(config)# ip address 192.168.1.12 255.255.255.0

switch-B(config)# vlan 10 name Group-A

switch-B(config)# vlan 20 name Group-B

switch-B(config)# int fa0/26

switch-B(config-if)# trunk on

switch-B(config-if)# exit

switch-B(config)# int fa0/27

switch-B(config-if)# trunk on

switch-B(config-if)# exit

switch-B(config)# int e0/1

switch-B(config-if)# vlan-membership static 10

switch-B(config-if)# exit

switch-B(config)# int e0/2

switch-B(config-if)# vlan-membership static 20

 

Router:

router> enable

router# conf t

router(config)# hostname Router

Router(config)# enable secret cisco

Router(config)# line vty 0 4

Router(config-line)# password cisco

Router(config-line)# login

Router(config-line)# exit

Router(config)# int fa0/0

Router(config-if)# no shut

Router(config-if)# int fa0/0.1

Router(config-subif)# encapsulation isl 1

Router(config-subif)# ip address 192.168.1.13 255.255.255.0

Router(config-subif)# description Gateway-VLAN1

Router(config-subif)# exit

Router(config-if)# int fa0/0.10

Router(config-subif)# encapsulation isl 10

Router(config-subif)# ip address 10.1.1.101 255.255.255.0

Router(config-subif)# description Gateway-VLAN10

Router(config-subif)# exit

Router(config-if)# int fa0/0.20

Router(config-subif)# encapsulation isl 20

Router(config-subif)# ip address 172.17.1.101 255.255.255.0

Router(config-subif)# description Gateway-VLAN2

 

Continuing previous post with title VLAN-Switch, now I will talk about VLAN-Switches.

This topology of VLAN is needed a Trunk. What is a Trunk ?

Trunk is a physical connection between switch to switch or switch to router or between switch to pc with a special NIC supported Trunk.

The figure below is talking about Trunk between two switch. In this topology, Trunk is  functioning as a bridge for each VLANs. So VLAN 10 in switch-A can communicate to VLAN 10 in switch-B with a logical connection inside the Trunk. Similar explanation for VLAN 20. But remember, different VLAN still can not connected to each other.

Click VLAN-Switches.jpg to see image

Two switches, switch-A and switch-B. Each has two VLANs, VLAN 10 and VLAN 20.

In switch-A VLAN 10 registered on ethernet-port 0/1, while ethernet-port 0/2 has VLAN 20. And switch-B has VLAN 10 registered on ethernet-port 0/1, and ethernet-port 0/2 has VLAN 20. 

As usual we will setup the default configuration on the switch, like hostname, password, IP Address, and the VLAN itself. 

 

console:

switch-A: 

switch> enable

switch# conf t

switch(config)# hostname switch-A

switch-A(config)# enable password level 15 cisco

switch-A(config)# ip address 192.168.1.11 255.255.255.0

switch-A(config)# vlan 10 name Group-A

switch-A(config)# vlan 20 name Group-B

switch-A(config)# int fa0/26

switch-A(config-if)# trunk on

switch-A(config-if)# exit

switch-A(config)# int e0/1

switch-A(config-if)# vlan-membership static 10

switch-A(config-if)# exit

switch-A(config)# int e0/2

switch-A(config-if)# vlan-membership static 20

 

switch-B:

switch> enable

switch# conf t

switch(config)# hostname switch-B

switch(config)# enable password level 15 cisco

switch(config)# ip address 192.168.1.12 255.255.255.0

switch(config)# vlan 10 name Group-A

switch(config)# vlan 20 name Group-B

switch(config)# int fa0/26

switch(config-if)# trunk on

switch(config-if)# exit

switch(config)# int e0/1

switch(config-if)# vlan-membership static 10

switch(config-if)# exit

switch(config)# int e0/2

switch(config-if)# vlan-membership static 20

 

VLAN stands for Virtual-LAN. The main idea is how to make logical connection trough a switch by grouping a LAN.

For example, LAN at the office. Most of them, it just connect all host available to ports available in switch. It will make one big broadcast transmission, and by the time it will excessive the network.

With VLAN you can make group for each department, like VLAN-marketing, VLAN-accounting, VLAN-operation. Host in VLAN-marketing can only communicate with other host in the same VLAN. Same scenario for other VLANs. This topology will divided broadcast transmission in to three different broadcast for each VLAN. It will make network more enhance and could provide maximum troughput to each host.

In order for scalability and adaptability, subnetting should be use for each VLAN. Especially for Trunking method.

scenario:

Cisco Catalyst Switch 1900 version with four active ethernet ports connects to four PC. We will try setting 2 VLANs, which is VLAN 10 and VLAN 20.

Console commands are setting up VLAN 10 and VLAN 20. VLAN 10 has a member ethernet-port 0/1 and ethernet-port 0/3, VLAN 20 has a member ethernet-port 0/2 and ethernet-port 0/4.

Host at ethernet-port 0/1 can only communicate to host at ethernet-port 0/3 because they are on the same VLAN 10. And Host at ethernet-port 0/2 can only communicate to host at ethernet-port 0/4 because they are on the same VLAN 20

 

console:

switch> enable

switch# conf t 

switch(config)# hostname switch-A

switch-A(config)# enable password level 15 cisco 

switch-A(config)# ip address 192.168.1.11 255.255.255.0

switch-A(config)# vlan 10 name Group-A

switch-A(config)# vlan 20 name Group-B

switch-A(config)# int e0/1

switch-A(config-if)# vlan-membership static 10

switch-A(config-if)# exit

switch-A(config)# int e0/2

switch-A(config-if)# vlan-membership static 20

switch-A(config-if)# exit

switch-A(config)# int e0/3

switch-A(config-if)# vlan-membership static 10

switch-A(config-if)# exit

switch-A(config)# int e0/4

switch-A(config-if)# vlan-membership static 20