Method and apparatus for multi-protocol redundant router protocol support
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
N/A
Issued Date -
Dec 6, 2001
app pub date -
Mar 23, 2001
filing date -
May 24, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A router is capable of providing multi-protocol redundant router protocol support. The redundant router protocols supported by the router include Hot Standby Router Protocol (HSRP) and Virtual Router Redundancy Protocol (VRRP). The router is capable of supporting multiple groups of virtual routers for each of the redundant router protocols. The router receives a packet and checks for prefix matching of MAC address bits. If the prefix of MAC address matches predefined HSRP or VRRP pattern, the router formulates a key, and compares the key against VRRP/HSRP database. If the key matches, the router routes the packet using virtual router address.
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