Table of Contents
Advertisement
Wireless IAD User Manual
PVC (Permanent Virtual Circuit)
A PVC is a logical point-to-point circuit between customer sites. PVCs are
low-delay circuits because routing decisions do not need to be made along
the way. Permanent means that the circuit is preprogrammed by the carrier
as a path through the network. It does not need to be set up or turned down
for each session.
RIP (Routing Information Protocol)
RIP is a routing protocol that uses the distance-vector routing algorithms to
calculate least-hops routes to a destination. It is used on the Internet and is
common in the NetWare environment. It exchanges routing information with
other routers. It includes V1, V2 and V1&V2, which controls the sending and
receiving of RIP packets over Ethernet.
UDP (User Datagram Protocol)
UDP is a connectionless transport service that dispenses with the reliability
services provided by TCP. UDP gives applications a direct interface with IP
and the ability to address a particular application process running on a host
via a port number without setting up a connection session.
Virtual Server
You can designate virtual servers, e.g., a FTP, web, telnet or mail server, on
your local network and make them accessible to the outside world. A virtual
server means that it is not a dedicated server -- that is, the entire computer
is not dedicated to running on the public network but in the private network.
VPI (Virtual Path Identifier) & VCI(Virtual Channel Identifier)
A VPI is a 8-bit field while VCI is a 16-bit field in the ATM cell header. A VPI
identifies a link formed by a virtual path and a VCI identifies a channel within
a virtual path. In this way, the cells belonging to the same connection can be
distinguished. A unique and separate VPI/VCI identifier is assigned in
advance to indicate which type of cell is following, unassigned cells,
physical layer OAM cells, met signaling channel or a generic broadcast
signaling channel. Your ISP should supply you with the values.
139
Advertisement
Table of Contents
