Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 28, 2009
0Patent Application Number
107674320
Date Filed
January 30, 2004
0Patent Primary Examiner
Patent abstract
In a packet transmission router used in a VRRP (Virtual Router Redundancy Protocol) network having a VR (Virtual Router) function, when virtual routers VR are realized by the VRRP, the routing control information that each VR manages is prevented from being mixed with that of other VR. When an active packet transmission router transmits a VRRP packet to a standby packet transmission router, an identifier indicating which virtual router belongs to the VRRP packet is added to the VRRP packet before the transmission of the VRRP packet.
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