load balancing using ibgp routing - mum.mikrotik.com · dynamic routing 8. dynamic routing 9....
TRANSCRIPT
Irvan Adrian K - [email protected]
Load Balancing Using
iBGP Routing
1
Mikrotik User Meeting
Yogyakarta – Indonesia
2017
▪ Irvan Adrian Kristiono
▪MTCNA, MTCRE, MTCWE, MTCINE
▪Mikrotik Certified Trainer
▪Central Network▪ Training Center & IT System Integrator
▪ http://www.centralnetwork.net
▪Grahamedia.Net Internet Service Provider ▪ http://www.grahamedia.net.id
▪ Lokasi kami di Jawa Tengah Salatiga – Semarang – Demak – Kudus – Jepara – Boyolali – Purwodadi - Sragen
About Presenter
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LOAD BALANCING
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SIMPLE NETWORK LAN
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ROUTER GATEWAY
INTERNET
MULTIPLE LAN CONNECTION - STAR
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BUILDING A
NOC / DATA CENTER
BUILDING B BUILDING C
BUILDING E BUILDING D
BUS NETWORK
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BUILDING A BUILDING B BUILDING C
BUILDING DBUILDING ENOC / DATA CENTER
MAIN LINKBACKUP LINK
LOAD BALANCING – BUS NETWORK
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BUILDING A BUILDING B BUILDING C
BUILDING DBUILDING ENOC / DATA CENTER
MAIN LINKSECONDARY LINK
DYNAMIC ROUTING
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DYNAMIC ROUTING
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AUTONOMOUS SYSTEM
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AS100
▪ EXTERIOR GATEWAY PROTOCOL
▪ BGP
▪ INTERIOR GATEWAY PROTOCOL
▪ RIP, OSPF
DYNAMIC ROUTING
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AS100
IGP
AS100 AS200
EGP
Default Administrative Distance
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Why iBGP ?
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MAIN CAPACITY ≠ SECONDARY CAPACITY
NOC
AS65530
IGP
AS65500
▪Antar Router tidak perlu terkoneksi langsung
(Directly Connected)
▪ iBGP harus terkoneksi Full Mesh :▪ Membantu Remote Network menggunakan Best Path
▪ Redundant koneksi diantara peer Internal
▪ iBGP peer tidak meng Advertise kembali Network yang dipelajari dari peer internal lainnya.
(harus menggunakan eBGP peer)
▪ iBGP akan menjadi penentu keputusan external peer mana yang digunakan untuk mencapai remote network
INTERNAL BGP (iBGP)
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▪Peering dengan menggunakan IP Address disalah satuinterface, menyebabkan ketergantungan terhadap salah satulink fisik.
▪ Jika link tersebut putus, Peer iBGP akan down, IP akan tidakteradvertise.
▪Untuk fail over peering antar router iBGP, harus menggunakanIP Loopback
IP iBGP Peering
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▪ iBGP dan OSPF menggunakan Alamat IP loopback untukinterkoneksi antar peer, mengapa ?
Karena Interface Loopback tidak akan down
LOOP BACK
Loopback
eth1
eth4
eth3
eth2
AS
iBGP Design Plan
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R1 R2
R3
R4
AS 65530AS
AS 65500
▪ Full Mesh Peer dalam 1 ASN
▪Menggunakan OSPF sebagai IGP
▪ iBGP untuk memilih Best Path untuk akses ke Internet / Data Center
NOC
IGPEGP
AS
iBGP DESIGN LAYOUT
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AS
R1 R2
R3R4
AS 65530NOC
AS 65500
SETUP LOOPBACK INTERFACE
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▪Buat interface “bridge-LO”
▪ Tambahkan IP Loopback di “bridge-LO”
R1
INSTALL OSPF (IGP)
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R1
INSTALL iBGP
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R1
R1
IP ROUTE
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R3
NOC
TEST TRACEROUTE 2.2.2.2
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R1 R2
R3R4
NOC
2.2.2.2 via ether1, Cara ubah via ether2 ?
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NOC
TEST TRACEROUTE 2.2.2.2
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R1 R2
R3R4
NOC
▪ Next-hop validation
▪ Highest WEIGHT (default 0)
▪ Highest LOCAL-PREF (default 100) OUT TRAFFIC
▪ Locally originated path (aggregate, BGP network)
▪ Lowest origin type (IGP,EGP,Incomplete)
▪ Lowest MED (default 0) IN TRAFFIC
▪ Prefer eBGP over iBGP
▪ Prefer the route with lowest router ID or ORIGINATOR_ID
▪ Shortest route reflection cluster (default 0)
▪ Prefer the path that comes from the lowest neighbor address
Urutan Prioritas iBGP Parameter
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ROUTE FILTER
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NOC
TRACEROUTE 2.2.2.2
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NOC
TEST TRACEROUTE 2.2.2.2
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R1 R2
R3R4
NOC
UBAH RX 2.2.2.2 via ETHER 2
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TRACEROUTE 2.2.2.2
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R2
TEST TRACEROUTE 2.2.2.2
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R1 R2
R3R4
NOC
