Invention Grant
- Patent Title: Triple-tier anycast addressing
- Patent Title (中): 三层Anycast寻址
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Application No.: US13584546Application Date: 2012-08-13
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Publication No.: US08743738B2Publication Date: 2014-06-03
- Inventor: Dino Farrinacci , Thomas James Edsall
- Applicant: Dino Farrinacci , Thomas James Edsall
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Main IPC: G06F15/16
- IPC: G06F15/16 ; H04L12/28 ; H04L29/12

Abstract:
In one embodiment, a solution is provided wherein redundant routers are treated as a single emulated switch. When a packet is received at a layer 2 edge switch from a host, the layer 2 edge switch may determine a switch identifier for the emulated switch using a destination anycast hardware address contained in the packet. The anycast hardware address may identify an emulated switch comprising a plurality of routers. Then a header may be added to the packet, the header including the switch identifier. Following that, the packet may be forwarded to another layer 2 switch along a shortest path from the layer 2 edge switch to the emulated switch.
Public/Granted literature
- US20120300782A1 TRIPLE-TIER ANYCAST ADDRESSING Public/Granted day:2012-11-29
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