I. INTRODUCTION
OSPF is a routing protocol based on link state. It aimed
for overcoming the shortcoming of RIP protocol, such as
only applicable to small and medium-sized network, the
maximum path length being 15, the slow convergence
speed, can’t carry out dynamic load balancing. OSPF uses
the Dijkstra algorithm, area support, suitable for large-scale
complex network. It is the most widely used interior
gateway protocol.
OSPFv1 appeared in 1989, RFC 1131 is the first IETF
standard about OSPF. But it was replaced by RFC1247
soon, then made some revision, and stable OSPFv2 forms in
1998, this version is widely used by IPV4.
OSPF version 3 (OSPFv3) is the realization of OSPF
protocol in IPV6 environment, which is designed to adapt to
changes in the IPV6 protocol. At present, OSPFv2 is
according to RFC 2328[1], OSPFv3 is according to RFC
2740[2], there are many differences from OSPFv2.
I. INTRODUCTION
OSPF is a routing protocol based on link state. It aimed
for overcoming the shortcoming of RIP protocol, such as
only applicable to small and medium-sized network, the
maximum path length being 15, the slow convergence
speed, can’t carry out dynamic load balancing. OSPF uses
the Dijkstra algorithm, area support, suitable for large-scale
complex network. It is the most widely used interior
gateway protocol.
OSPFv1 appeared in 1989, RFC 1131 is the first IETF
standard about OSPF. But it was replaced by RFC1247
soon, then made some revision, and stable OSPFv2 forms in
1998, this version is widely used by IPV4.
OSPF version 3 (OSPFv3) is the realization of OSPF
protocol in IPV6 environment, which is designed to adapt to
changes in the IPV6 protocol. At present, OSPFv2 is
according to RFC 2328[1], OSPFv3 is according to RFC
2740[2], there are many differences from OSPFv2.
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