公开(公告)号：JP2000307657A

公开(公告)日：2000-11-02

申请号：JP2000070799

申请日：2000-03-14

Applicant: IBM

Inventor： LAMBERTON MARC ,  LEVY ABEGNOLL ERIC ,  SECONDO PIERRE ,  THUBERT PASCAL

IPC: G06F13/00 ,  H04L12/26 ,  H04L12/28 ,  H04L12/701 ,  H04L12/713 ,  H04L29/06 ,  H04L29/08 ,  H04L29/12 ,  H04L12/56 ,  H04L12/66

Abstract: PROBLEM TO BE SOLVED: To obtain a data transmission system which exchanges packetized data through an IP network as a medium between an arbitrary IP host in a cluster of IP hosts and a plurality of workstations. SOLUTION: Each IP host has at least an IP layer and a network layer. The IP host is connected to the IP network by a pair of routers 26 and 28 and a network dispather 34, through a layer-2 network 24 as the interface of the IP network 22. The network dispatcher 34 receives all incoming flows from workstations and dispatches them between host clusters. This system includes a monitor device including a means which is included in the host cluster and monitors at least the availability of the routers and a means which broadcasts availability information on the routers to individual hosts in the host cluster through the network dispatcher.

公开(公告)号：JP2000295291A

公开(公告)日：2000-10-20

申请号：JP2000070741

申请日：2000-03-14

Applicant: IBM

Inventor： LAMBERTON MARC ,  LEVY ABEGNOLL ERIC ,  SECONDO PIERRE ,  THUBERT PASCAL

IPC: H04L12/56 ,  H04L29/06 ,  H04L29/08 ,  H04L29/12 ,  H04L12/28

Abstract: PROBLEM TO BE SOLVED: To provide a data transmission system including an IP network where an IP host directly selects a default router so as to enhance load balance thereby enhancing the availability of the system. SOLUTION: In the data transmission system, packetized data from an IP host 10 having an least an IP layer 34 a network layer are transmitted to a plurality of work stations 12, 14 through a medium that is an IP network 16. The IP host is connected to the IP network via a layer 2 network 18 interfacing the IP network by a set of routers 20, 22, 24. The IP host has a multiple address resolution protocol(MARP) layer 36 between the IP layer and the network layer, and the MARP layer selects any of the routers in response to a succeeding hop IP address fed to the MARP layer with the IP layer when a data packet is transmitted to any of the work stations from the IP host.