Presentation Title Size 30PTCisco Confidential
Cisco Confidential
Cisco Networking Academy
Designing and Supporting Computer Networks
Network Fundamentals
Building Multilayer
Switched Networks
Our current portfolio consists of 14 courses
IT Essentials: PC Hardware and Software —provides an overview of how the internal components of a computer work The course covers laptops and portable devices, assembling/disassembling PC components, wireless connectivity, security, safety and environmental issues associated with installing, configuring and troubleshooting and a PC.
CCNA Discovery (4 courses) —provides an introduction to networking. It teaches networking based on application and helps students develop foundational routing, switching, and WAN knowledge and experience, which can be applied toward entry-level careers in networking for small and medium-sized businesses.
CCNA Exploration (4 courses) —provides an introduction to networking. It teaches networking based on technology. It covers routing, switching, and WAN protocols and theory at deeper levels to help students succeed in networking-related degree programs and a range of professions.
CCNA Security –helps students develop a comprehensive understanding of network security concepts, and gain the knowledge and skills needed to earn the Cisco CCNA Security certification and become entry-level security specialists.
CCNP (4 courses) —the CCNP curriculum focuses on the advanced routing, secure wide area access, multilayer switching, and networking management skills required to implement and maintain converged enterprise networks.
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WAN Technologies
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The WAN interface
Your Ethernet LAN connects to your router. But what does you router connect to?
LAN Ethernet Anda terhubung ke router Anda. Akan tetapi apakah router Anda terhubung ke WAN?
802.3 LAN
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Regional Bells usually provide the media for Wide-Area Network connectivity.
SF
NY
PACBELL
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WAN Pipes
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T-carrier lines
T-carrier lines are high-speed dedicated digital lines that can be leased from tele- phone companies. This creates an always-open, always-available line between you and whomever you choose to connect to when you establish the service.
Jalur T-carrier berkecepatan tinggi merupakan jaringan digital yang dedikasi, yang dapat disewa dari perusahaan telepon. Hal ini menciptakan sesuatu yang selalu terbuka, Saluran ini selalu tersedia antara Anda dan siapapun yang Anda pilih untuk tersambung, bila Anda membangun layanan.
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T-carrier lines
T-carrier lines can support both voice and data transmissions and are often used to create point-to-point private networks. Because they are a dedicated link, they can be a costly WAN option. Four types of T-carrier lines are available:
Saluran T-carrier dapat mendukung transmisi suara dan data dan sering digunakan untuk membuat jaringan pribadi point-to-point. Karena T-carrier adalah link khusus, mereka dapat menjadi WAN pilihan yang mahal. Empat jenis Jalur T-carrier yang tersedia:
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T-carrier lines
T1: T1 lines offer transmission speeds of 1.544Mbps, and they can cre- ate point-to-point dedicated digital communication paths. T1 lines have commonly been used for connecting LANs.
T1: Saluran T1 menawarkan transmisi kecepatan 1,544 Mbps, dan dapat membuat jalur komunikasi digital dedicated point-to-point. Jalur T1 sudah biasa dan lumrah digunakan untuk menghubungkan LAN.
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T-carrier lines
T2: T2 leased lines offer transmission speeds of 6.312Mbps. They accomplish this by using 96 64Kbps B channels.
T2: T2 leased line menawarkan kecepatan transmisi 6,312 Mbps. Mereka melakukannya dengan menggunakan 96 64 Kbps channel B.
T3: T3 lines offer transmission speeds of up to 44.736Mbps, using 672 64Kbps B channels.
T3: Jalur T3 menawarkan kecepatan transmisi hingga 44.736Mbps, menggunakan 672 64 Kbps channel B.
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T-carrier lines
T4: T4 lines offer impressive transmission speeds of up to 274.176Mbps by using 4,032 64Kbps B channels.
T4: Jalur T4 menawarkan kecepatan transmisi yang mengesankan hingga 274,176 Mbps dengan menggunakan 4.032 64 Kbps channel B.
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T-carrier lines
It is important to point out that T-carrier is the designation for the technology used in the United States and Canada. In Europe, they are called E-carriers and, in Japan, J-carriers. Table 6.3 describes the T/E/J carriers.
Hal ini penting untuk menunjukkan bahwa T-carrier adalah merupakan teknologi yang digunakan di daratan Amerika Serikat dan Kanada. Di Eropa, mereka disebut E-operator dan, di Jepang, J-operator.
Tabel menggambarkan T / E / J operator.
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Name
E4 E5
139.264Mbps 565.148Mbps
T1 T1C T2 T3 T4 J0 J1
1.544 Mbps 3.152 Mbps 6.312 Mbps 44.736 Mbps 274.176 Mbps 64 Kbps 1.544 Mbps
J1C J2
3.152Mbps 6.312Mbps
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Bagaimana router terhubung ke perusahaan penyedia Jalur telepon?
to phone company
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Data Terminal Equipment
Routers are usually considered DTEs. DTEs are devices at the end of a user’s network that serve as a data source, destination, or both.
Router biasanya dianggap DTE. DTE adalah perangkat pada akhir jaringan pengguna yang berfungsi sebagai sumber data, tujuan, atau keduanya.
The router is a DTE, or Data Terminal Equipment
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Your home computer can also be a DTE.
How do you connect to the phone company’s network at home?
Komputer di rumah juga bisa menjadi DTE.
Bagaimana Anda terhubung ke perusahaan penyedia jaringan telepon di rumah?
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DTEs and DCEs
At home, you connect to the phone company’s network using a modem.
Di rumah, Anda terhubung ke jaringan perusahaan telepon menggunakan modem.
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Data Circuit Equipment
A modem is a type of DCE, or Data Circuit-Termination Equipment. It’s the device at the end of the service provider’s network (phone company).
Modem adalah jenis DCE, atau Data Circuit-Termination Equipment. Ini adalah perangkat pada akhir jaringan penyedia layanan (perusahaan telepon) .
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Channel Service Unit
Data Service Unit
CSU/DSU is located at the end of the service provider’s network (phone company).
CSU / DSU terletak di ujung jaringan (perusahaan telepon) penyedia layanan.
connects to router Serial port.
menghubungkan ke router Serial port.
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DTEs and DCEs
A DTE interfaces with a DCE to gain access to the phone company’s network.
Suatu antarmuka DTE dengan DCE untuk mendapatkan akses ke jaringan perusahaan telepon.
DTE
DCE
PC
Router
Modem
CSU/DSU
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Serial port on router
V.35 port on CSU/DSU
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phone company
digital line
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The WAN is simulated in our lab.
No digital phone lines, no CSU/DSUs.
Therefore, one router must play the DCE role - very unusual.
Serial interface
Serial interface
V.35 Cables
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WAN: Layer 2
WAN data-link protocols describe how frames are carried between systems on a single data path.
WAN protokol data-link menggambarkan bagaimana membawa frame antara sistem pada jalur data tunggal.
Point-to-point
Multipoint
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usually used when connecting one router directly to another (point-to-point)
also is capable of supporting multipoint connections (multiple point-to-point)
(test question)
HDLC implementations are proprietary
High-level Data Link Control
biasanya digunakan saat menghubungkan satu router langsung ke yang lain (point-to-point)
juga mampu mendukung koneksi multipoint (multiple point-to-point)? (pertanyaan tes)
membutuhkan dedicated jaringan digital pribadi
Implementasi HDLC adalah proprietary
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Used by
POTS users over dial-up (circuit switched) lines (Windows & Mac dial-up networking)
Descendant of SLIP
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Used by
POTS (Plain Old Telephone Service) users melalui dial-up (circuit switched) Jalur (Windows & Mac jaringan dial-up)
Turunan dari SLIP (Serial Line Internet Protocol)
Standar terbuka (RFC 1661)
Memungkinkan otentikasi (PAP, CHAP)
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Frame Relay
Frame Relay
Packet switched
One physical link can handle multiple logical links - (multiaccess)
Descendant of X.25
Simplified frame (no error correction) relies on today’s superior data links
Very fast
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Frame Relay
Frame Relay
Packet switched
Satu link fisik dapat menangani beberapa link logis - (multiaccess)
Turunan dari X.25
Frame sederhana (tidak ada koreksi kesalahan) bergantung pada superior link data hari ini
Sangat cepat
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designed to transmit voice, data, video over existing phone lines
used primarily for remote access via modems
not very fast (especially BRI - 128 Kbps)
may disappear with the emergence of cable modems and DSL
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Circuit switched – (melalui saluran digital suara/ data)
Dirancang untuk mengirimkan suara, data, video melalui saluran telepon yang ada.
Digunakan terutama untuk akses jarak jauh melalui modem.
Tidak terlalu cepat (terutama BRI (Basic Rate ISDN - 128 Kbps)
Mungkin hilang dengan munculnya modem kabel dan DSL (Digital subscriber line).
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