h1

Mengenal VPI dan VCI

Maret 31, 2008

dalam settingan modem speedy

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.

Sementara untuk settingan nilai VPI dan VCI di berbagai daerah di Indonesia bisa lihat dalam postingan di forum “Pojok Kang Onno” berikut ini :
http://opensource.telkomspeedy.com/forum/viewtopic.php?pid=2101#p2101

Tinggalkan Balasan

Isikan data di bawah atau klik salah satu ikon untuk log in:

Logo WordPress.com

You are commenting using your WordPress.com account. Logout / Ubah )

Gambar Twitter

You are commenting using your Twitter account. Logout / Ubah )

Foto Facebook

You are commenting using your Facebook account. Logout / Ubah )

Foto Google+

You are commenting using your Google+ account. Logout / Ubah )

Connecting to %s

%d blogger menyukai ini: