Slave inter-lan connection device, an inter-lan connection system and a hot standby method of said inter-lan connection system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 29, 1998
Grant Date -
N/A
app pub date -
Mar 15, 1996
filing date -
Mar 17, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention has both a master router and a slave router on a route. The slave router comprises an address setting section 9 for setting a physical address and a network address of the master router as well as its own physical address, and a control section 12 for conducting routing operation and controlling a ping test section 10 and routing/ARP table 11. While halting routing operation, the slave router receives a broadcast packet and a control packet sent to the address of the master router, makes a routing/ARP table same as that of the master router, regularly conducts a ping test to a LAN interface of the master router, and decides that the master router is in malfunction when the master router makes no response to the ping test. Then, the slave router starts routing operation instead of the master router.
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