AddPac VoiceFinder AP2120 User's Guide Page 90

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VoiceFinder AP2120 VoIP Gateway User’s Guide Version 1.00
AddPac Technology Co., Ltd. -
90 -
4.5.3. OSPF Configuration
OSPF(Open Shortest Path First) is IGP (Interior Gateway Procotol) using Link State
Algorithm developed by OSPF Working Group of IETF(Internet Engineering Task
Force). OSPF is designed to support IP network with tagging of routing
information of sub-network. Also, it offers Packet Authentication with neighbor
gateways and utilizes IP multicase when sharing Routing information packet.
VoiceFinder AP2120 Gateway support OSOPF Version 2 described at Internet
RFC 1583. The below describes OSPF functions of VoiceFinder AP2120
Gateway
z Stub Area : Supports definition of Stub Area.
z Route Redistribution : Redistribute Routing information of IP routing protocol
to other routing procotols.
z Authentication : Supports Plain Text and MD5 Authentication among
Neighboring Gateways in an area.
z Routing Interface Parameter : The administrator can configure interface
parameters such as Interface output cost, retransmission interval, interface
transmit delay, router priority authentication key.
z ABR (Area Boarder Router) : It supports Area Border Routers function when
a Gateway exists on two different OSPF areas.
Network with OSPF has several Area include Back-bone area in one routing
domain.
z Routing domain: An area where routing is processed with one routing
protocol. If a network with different routing protocol is connected, it is
regarded as outside network by OSPF. One (1) OSPF routing doman
consists of one back-bone Area and several Areas.
z Area : a combination of several networks, and each Area has network
diagram called condition database. All the gateways at the same area
has the same condition database. These Areas can communicate with
Information
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