Buat yang baru pasang speedy pasti bertanya - tanya, apa sih VPI dan VPI itu ? terus kenapa nilainya berbeda - beda tergantung dengan DSLAM yang digunakan ? Nah berikut ini penjelasan mengenai VPI dan VCI versi wikipedia :
VPI = Virtual Path Identifier
Virtual Path Identifier refers to an 8-bit (user to network packets) or 12-bit (network-network packets) field within the header of an Asynchronous Transfer Mode packet. The VPI, together with the VCI (Virtual Channel Identifier) is used to identify the next destination of a cell as it passes through a series of ATM switches on its way to its destination. VPI is useful to reduce the switching table for some Virtual Circuits which have common path.
VCI = Virtual channel identifier
A Virtual Channel Identifier (VCI) is a unique identifier which indicates a particular virtual circuit on a network. It is a 16-bit field in the header of an ATM cell. The VCI, together with the VPI (Virtual Path Identifier) is used to identify the next destination of a cell as it passes through a series of ATM switches on its way to its destination.
ATM switches use the VPI/VCI fields to identify the virtual channel link {VCL} of the next network that a cell needs to transit on its way to its final destination. The function of the VCI is similar to that of the data-link connection identifier DLCI in Frame Relay and the Logical Channel Number & Logical Channel Group Number in X.25.
VPI = Virtual Path Identifier
Virtual Path Identifier refers to an 8-bit (user to network packets) or 12-bit (network-network packets) field within the header of an Asynchronous Transfer Mode packet. The VPI, together with the VCI (Virtual Channel Identifier) is used to identify the next destination of a cell as it passes through a series of ATM switches on its way to its destination. VPI is useful to reduce the switching table for some Virtual Circuits which have common path.
VCI = Virtual channel identifier
A Virtual Channel Identifier (VCI) is a unique identifier which indicates a particular virtual circuit on a network. It is a 16-bit field in the header of an ATM cell. The VCI, together with the VPI (Virtual Path Identifier) is used to identify the next destination of a cell as it passes through a series of ATM switches on its way to its destination.
ATM switches use the VPI/VCI fields to identify the virtual channel link {VCL} of the next network that a cell needs to transit on its way to its final destination. The function of the VCI is similar to that of the data-link connection identifier DLCI in Frame Relay and the Logical Channel Number & Logical Channel Group Number in X.25.
Encapsulation, VPI, dan VCI, unt berbagai macam DSLAM
Date Posted: 2007-02-24 04:46 WIB � Last Update 2007-02-24 04:48 WIB
Ini tambahan data konfigurasi Encapsulation, VPI, dan VCI,
untuk berbagai macam DSLAM yg saya kumpulkan dari berbagai sumber.
Bagi yg punya informasi valid (koreksi, tambahan keterangan, dsb) dapat menambahkannya di thread ini. Kalau memungkinkan, mohon di-check ulang ke sumbernya dan/atau di-test terlebih dahulu. Setelah yakin dapat segera di-postong sendiri.
Jangan menunggu saya karena mungkin tidak bisa selalu online. Jika sempat akan saya tambahkan ke daftar ini spy terkumpul jadi satu sehingga kalau diperlukan mudah di-copy & dicetak. Besok kalau sudah punya Moderator yg cukup punya waktu & komitmen unt membantu kang Onno mengurusi pojok ini biar dia yg mengambil alih masalah editing, layout, dsb.
Informasi penting macam ini harusnya dapat kita temukan di homepage resmi ISP kita (TelkomNet). Dia sbg ISP [dan notabene adalah divisi-nya PT Telkom] mestinya lebih tahu soal data/konfigurasi teknis.
Karena tidak ada terpaksa kita harus swadaya mencari sendiri.
Siapa sangka eh ternyata nyelip di WPKO (Waroeng Pojok Kang Onno).
Semoga bermanfaat dan mari kita tunjukkan yg namanya "people power"...
A. Jakarta
1. Untuk DSLAM buatan Alcatel-Lucent (France)
Encapsulation = PPPoA � VPI = 8 � VCI = 35
Sumber Info: [1]
2. Untuk DSLAM buatan Huawei Technologies Co Ltd (China)
Encapsulation = PPPoE � VPI = 0 � VCI = 35
Sumber Info: [1]
3. Untuk DSLAM buatan Siemens AktienGesellschaft (Germany)
Encapsulation = PPPoA � VPI = 1 � VCI = 33
Sumber Info: [1]
B. Sumatra, Jawa Barat, Jawa Tengah, Jawa Timur, Bali, Kalimantan, Sulawesi
1. Untuk DSLAM buatan ZTE (ZhongXing Telecommunication Equipment Co Ltd)(China)
Encapsulation = PPPoE � VPI = 8 � VCI = 81
Sumber Info: [1]
2. Untuk DSLAM buatan Huawei Technologies Co Ltd (China)
Encapsulation = PPPoE � VPI = 0 � VCI = 35
Sumber Info: [1]
CATATAN
� Semua daerah di Jawa Tengah: DSLAM = ZTE
Sumber Info: [2] pada 2007-02-22 ±23:50 WIB
� Semua wilayah di Bandung: DSLAM = ZTE
Sumber Info: [3] pada [2007-02-22 ±19:41 WIB]
Quote: {DataAndria} 22.02.07 19:41
Re: Laporan Kondisi/Situasi Koneksi Speedy dari Berbagai Daerah.
"Hari ini 22-Feb-2007 12:30 WIB saya mencoba menanyakan ke 147 mengenai DSLAM yang ada di Bandung itu pakainya apa saja. Yang jawab "cowok". Katanya semua DSLAM di Bandung menggunakan modem ZTE."
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