Frame-Relay

---Frame Relay---

Frame relay merupakan high performance pada protokol wan yang beroperasi pada physical dan data link, contohnya yaitu Packet-Switched Technology.
Frame relay virtual circuit berkaitan dengan DLCI (Data-link Connection Identifiers), nilai DLCI ini ditetapkan oleh Service Provider.

---Frame Relay Local Management Interface---

Frame Relay LMI harus sama ketika kita menetapkan LMI di karenakan mempunyai fungsi sebagai berikut :
a. Global Addressing
b. Virtual circuit status messages
c. Multicasting

--- Type LMI---

a. Cisco, ANSI, Q933A
b. Automatically detected

---LMI Status Messages---

a. Active (up dari kedua sisi)
b. Inactive (Menerima DLCI Status tetapi di sisi yang lain tidak up)
c. Deleted ( Tidak Menerima DLCI Status)
d. Static (Tidak menggunakan LMI)

---Frame Relay LMI Freek---

Router bergantung pada LMI untuk mempertahankan status koneksi yang aktif. Freek dapat digunakan untuk sebagai backup berupa keepalive. contoh konfigurasi DEFAULT

---Tipe Frame Relay Interface---

a. frame relay interfaces secara default adalah multipoint
b. Point-to-Point
   1 Sub interfaces bertindak sebagai Leased Line
   2 Setiap Point to Point memiliki Network yang berbeda
   3 Hub and Spoke Topology

c. Multipoint
   1 Sub interfaces bertindak sebagai NBMA, jadi tidak terjadi masalah dengan split horizon.
   2.Partial Mesh dan Full Mesh
   3. Single Network.

---Frame Relay Split Horizon---

a. Split Horizon merupakan default disable pada main interface untuk RIP dan IGRP supaya tidak terjadi Loop.
b. Manual Disable Split Horizon pada Multipoint Sub Interface
c. Manual Disable Split Horizon pada physical Interface untuk EIGRP.
d. Pada Sub-Interface default nya adalah Enable oleh karena itu cek terlebih dahulu.

---Frame Relay Address Resolution---

a. Address Resolution

Inverse-arp digunakan untuk menyelesaikan layar 3 Remote ke Layar 2 Lokal. atau secara umum menghapus dlci-dlci yang tidak diperbolehkan di sisi router kita.
Interface multipoint membutuhkan L3 ke L2 Resolusi.
Resolusi terjadi dalam dua cara yaitu Dinamis melalui inverse-arp dan statis melalui perintah "frame-relay map.
kita dapat men disable inverse-arp dengan cara :

(config-if)# no frame-relay inverse-arp

frame-relay inverse arp pada static map sudah turn off.

---TroubleShoot Frame Relay---

Dalam konfigurasi multipoint frame-relay berikut harus benar sebelum dua router dapat berkomunikasi, dan alamat IP tujuan harus berada dalam tabel routing.

contohnya :

---PPP Over Frame-Relay---

PPP over frame relay digunakan untuk authentikasi melalui frame relay.
membuat virtual template dan apply pada frame-relay sub interface.
hanya bekerja pada point to point.

contoh CHAP

contoh PAP

PPP WAN Protocol
Contoh ---PPP Chap Authentikasi

---Frame Relay Back to Back Connection---

contoh konfigurasi frame-relay Back to Back Connection

Kita Lihat Yuk, Contoh Tiket CCIE dari Frame Relay

Tiket 1. Frame Relay Split Horizon

=======

FRSW

=======

[command_Start]

frame-relay switching

interface Serial0/0

no ip address

encapsulation frame-relay

clock rate 2000000

frame-relay lmi-type cisco

frame-relay intf-type dce

frame-relay route 102 interface Serial0/1 201

frame-relay route 103 interface Serial0/2 301

end

interface Serial0/1

no ip address

encapsulation frame-relay

clock rate 2000000

frame-relay lmi-type cisco

frame-relay intf-type dce

frame-relay route 201 interface Serial0/0 102

end

interface Serial0/2

no ip address

encapsulation frame-relay

clock rate 2000000

frame-relay lmi-type cisco

frame-relay intf-type dce

frame-relay route 301 interface Serial0/0 103

end

[command_end]

===

[command_start]

interface Serial0/0

no ip address

encapsulation frame-relay

clock rate 2000000

end

interface Serial0/0.123 multipoint

ip address 123.123.123.1 255.255.255.0

no ip split-horizon

frame-relay map ip 123.123.123.2 102 broadcast

frame-relay map ip 123.123.123.3 103 broadcast

end

interface Loopback0

ip address 1.1.1.1 255.255.255.255

router rip

ver 2

network 0.0.0.0

[command_end]

====

[command_start]

interface Serial0/0

ip address 123.123.123.2 255.255.255.0

encapsulation frame-relay

clock rate 2000000

frame-relay map ip 123.123.123.1 201 broadcast

frame-relay map ip 123.123.123.3 201

end

interface Loopback0

ip address 2.2.2.2 255.255.255.255

router rip

ver 2

network 0.0.0.0

[command_end]

===

[command_start]

interface Serial0/0

ip address 123.123.123.3 255.255.255.0

encapsulation frame-relay

clock rate 2000000

frame-relay map ip 123.123.123.2 301 broadcast

frame-relay map ip 123.123.123.1 301

end

interface Loopback0

ip address 3.3.3.3 255.255.255.255

router rip

ver 2

network 0.0.0.0

[command_end]

verifikasi

===

R1#sh frame-relay map

Serial0/0.123 (up): ip 123.123.123.2 dlci 102(0x66,0x1860), static,

broadcast,

CISCO, status defined, active

Serial0/0.123 (up): ip 123.123.123.3 dlci 103(0x67,0x1870), static,

broadcast,

CISCO, status defined, active

R1#sh frame-relay pvc

PVC Statistics for interface Serial0/0 (Frame Relay DTE)

Active Inactive Deleted Static

Local 2 0 0 0

Switched 0 0 0 0

Unused 0 0 0 0

DLCI = 102, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0.123

input pkts 33 output pkts 34 in bytes 3668

out bytes 3804 dropped pkts 0 in pkts dropped 0

out pkts dropped 0 out bytes dropped 0

in FECN pkts 0 in BECN pkts 0 out FECN pkts 0

out BECN pkts 0 in DE pkts 0 out DE pkts 0

out bcast pkts 34 out bcast bytes 3804

5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

pvc create time 00:14:43, last time pvc status changed 00:14:25

===

R2#sh frame-relay map

Serial0/0 (up): ip 123.123.123.1 dlci 201(0xC9,0x3090), static,

broadcast,

CISCO, status defined, active

Serial0/0 (up): ip 123.123.123.3 dlci 201(0xC9,0x3090), static,

CISCO, status defined, active

===

R3#sh frame-relay map

Serial0/0 (up): ip 123.123.123.2 dlci 301(0x12D,0x48D0), static,

broadcast,

CISCO, status defined, active

Serial0/0 (up): ip 123.123.123.1 dlci 301(0x12D,0x48D0), static,

CISCO, status defined, active

Tiket 2. Frame-Relay Inverse ARP

===

[command_start]

interface Serial0/0

ip address 12.12.12.1 255.255.255.0

encapsulation frame-relay

clock rate 2000000

end

[command_end]

==========

R2 as FRSW

==========

[command_start]

frame-relay switching

interface Serial0/0

no ip address

encapsulation frame-relay

clock rate 2000000

frame-relay lmi-type cisco

frame-relay intf-type dce

frame-relay route 102 interface Serial0/1 201

end

interface Serial0/1

no ip address

encapsulation frame-relay

clock rate 2000000

frame-relay lmi-type cisco

frame-relay intf-type dce

frame-relay route 201 interface Serial0/0 102

end

[command_end]

===

[command_start]

interface Serial0/0

ip address 12.12.12.2 255.255.255.0

encapsulation frame-relay

clock rate 2000000

end

[command_end]

verifikasi

===

R1#sh frame-relay map

Serial0/0 (up): ip 12.12.12.2 dlci 102(0x66,0x1860), dynamic,

broadcast,, status defined, active

===

R3#sh frame-relay map

Serial0/0 (up): ip 12.12.12.1 dlci 201(0xC9,0x3090), dynamic,

broadcast,, status defined, active

R3#ping 12.12.12.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 12.12.12.1, timeout is 2 seconds:

!!!!!

Tiket 3. Frame Relay -Multilink PPP

==========

R2 as FRSW

==========

[command_start]

frame-relay switching

interface Serial0/0

no ip address

encapsulation frame-relay

clock rate 2000000

frame-relay lmi-type cisco

frame-relay intf-type dce

frame-relay route 103 interface Serial0/2 301

end

interface Serial0/1

no ip address

encapsulation frame-relay

clock rate 2000000

frame-relay lmi-type cisco

frame-relay intf-type dce

frame-relay route 204 interface Serial0/3 402

end

interface Serial0/2

no ip address

encapsulation frame-relay

clock rate 2000000

frame-relay lmi-type cisco

frame-relay intf-type dce

frame-relay route 301 interface Serial0/0 103

end

interface Serial0/3

no ip address

encapsulation frame-relay

clock rate 2000000

frame-relay lmi-type cisco

frame-relay intf-type dce

frame-relay route 402 interface Serial0/1 204

end

[command_end]

===

[command_end]

interface Serial0/0

no ip address

encapsulation frame-relay

clock rate 2000000

frame-relay interface-dlci 103 ppp Virtual-Template1

end

interface Serial0/1

no ip address

encapsulation frame-relay

clock rate 2000000

frame-relay interface-dlci 204 ppp Virtual-Template1

end

interface Virtual-Template1

ip address 12.12.12.1 255.255.255.0

ppp authentication chap

ppp multilink

username R3 password cisco

[command_end]

===

[command_start]

interface Serial0/0

no ip address

encapsulation frame-relay

clock rate 2000000

frame-relay interface-dlci 301 ppp Virtual-Template1

interface Serial0/1

no ip address

encapsulation frame-relay

clock rate 2000000

frame-relay interface-dlci 402 ppp Virtual-Template1

interface Virtual-Template1

ip address 12.12.12.2 255.255.255.0

ppp authentication chap

ppp multilink

username R1 password cisco

[command_end]

verifikasi

===

R1#sh ppp multilink

Virtual-Access4

Bundle name: R2

Remote Username: R2

Remote Endpoint Discriminator: [1] R2

Local Username: R1

Local Endpoint Discriminator: [1] R1

Bundle up for 00:58:36, total bandwidth 200000, load 1/255

Receive buffer limit 24384 bytes, frag timeout 1000 ms

0/0 fragments/bytes in reassembly list

0 lost fragments, 0 reordered

0/0 discarded fragments/bytes, 0 lost received

0x0 received sequence, 0x0 sent sequence

Member links: 2 (max not set, min not set)

Vi1, since 00:58:36

Vi2, since 00:58:35

===

R2#sh ppp multilink

Virtual-Access4

Bundle name: R1

Remote Username: R1

Remote Endpoint Discriminator: [1] R1

Local Username: R2

Local Endpoint Discriminator: [1] R2

Bundle up for 00:59:27, total bandwidth 200000, load 1/255

Receive buffer limit 24384 bytes, frag timeout 1000 ms

0/0 fragments/bytes in reassembly list

0 lost fragments, 0 reordered

0/0 discarded fragments/bytes, 0 lost received

0x0 received sequence, 0x0 sent sequence

Member links: 2 (max not set, min not set)

Vi1, since 00:59:27

Vi2, since 00:59:26

R3#ping 12.12.12.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 12.12.12.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 28/67/120 ms

Minggu, 09 Desember 2012

Frame-Relay

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