System information

BSR 64000 Configuration and Management Guide
5-2
A datagram is a packet format defined by IP. An IP packet contains the necessary
destination address information. A packet-switching network uses the addressing
information to switch the packet from one physical network to another, moving it
toward its final destination. Each packet travels the network independent of any other
packet.
IP performs the following functions:
• Moves data between the Network Access layer and the Host-to-Host Transport
layer
• Routes datagrams to remote hosts
• Fragments and reassembles datagrams
A router forwards traffic from one network to another. The router also transmits route
information to other routers. This route information is stored in routing tables that
enable a router without a direct physical connection to a packet’s destination to
forward the packet to a router that is closer to its destination. The process continues at
each router until the packet reaches a router attached to the same network as the
destination host. That router delivers the packet to the specified host on its local
network, and the packet reaches its final destination.
Setting IP Interface Addresses
You must configure the interfaces on the BSR in order for the BSR to transmit and
receive data and communicate with other network devices.