OfficeServ 7400 General Description
© Samsung Business Communications
4-5
4.2.2 Routers
Various Network Interface
OfficeServ 7400 provides the E0, E1, and E2 network interfaces (which are connected to
the WAN through the Ethernet interface), and the serial network connected through the
V.35, HSSI serial interface.
Static Routing
The OfficeServ 7400 configures a fixed routing table between each network interface to
process the static routing. In this case, the routing table cannot be dynamically changed by
the routing protocol, and specific routing services will be provided according to the pre-set
routing policy.
WAN Interface (Ethernet, PPPoE, DHCP Client)
E0, E1, E2 Ethernet WAN Interface enables connection to the Internet using the Static IP,
PPPoE, and DHCP client protocol.
V.35 Interface (PPP, HDLC, Frame Relay)
The OfficeServ 7400 accesses the Internet through the V.35 serial interface with a transfer
speed of up to 2Mbps. In this case, the OfficeServ 7400 supports various environments us-
ing functions such as PPP, HDLC, and Frame Relay Encapsulation.
HSSI Interface (PPP, HDLC, Frame Relay)
The Internet can be connected via the High Speed Serial Interface (HSSI) with a maximum
transmission speed of 52Mbps. Generally, HSSI can use the equipment on a token-ring and
Ethernet network for connecting to the equipment operating at the speed of a Synchronous
Optical Network (SONET) OC-1 or T3 circuit.
Routing Protocol
The OfficeServ 7400 supports the ‘routing information exchanging’ protocol to react to
network environmental change and to effectively process the routing.
y
Routing Information Protocol version1 (RIPv1), RIPv2
These protocols are widely used for managing the routing information in a mid-size in-
dependent network such as a group of LANs.
y
Open Shortest Path First version2 (OSPFv2)
This routing protocol is used prior to the RIP in a large-size independent network.
A router detects and reports any change in the routing table or the network to other
routers. In this way, all routers share the same routing information.
y
BGP4 (Border Gateway Protocol 4)
As an Exterior Gateway Protocol through which the Autonomous System (AS)
sends/receives the routing information between other networks, Version 4 of BGP is cur-
rently used. BGP4 uses various matrixes when selecting the optimized path to the destina-
tion. BGP4 compares each matrix having priority and selects the optimized path.
