Invention Grant
US09559952B2 Routing internet protocol version 6 link-local addresses in a network environment
有权
在网络环境中路由Internet协议版本6链路本地地址
- Patent Title: Routing internet protocol version 6 link-local addresses in a network environment
- Patent Title (中): 在网络环境中路由Internet协议版本6链路本地地址
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Application No.: US13888052Application Date: 2013-05-06
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Publication No.: US09559952B2Publication Date: 2017-01-31
- Inventor: Shyam Kapadia , Chengelpet V. Ramesh , Ming Zhang
- Applicant: CISCO TECHNOLOGY, INC.
- Applicant Address: US CA San Jose
- Assignee: CISCO TECHNOLOGY, INC.
- Current Assignee: CISCO TECHNOLOGY, INC.
- Current Assignee Address: US CA San Jose
- Agency: Patent Capital Group
- Main IPC: H04L12/28
- IPC: H04L12/28 ; H04L12/56 ; H04L12/781 ; H04L12/721

Abstract:
An example method for routing IPv6 link-local addresses in a network environment is provided and includes receiving a packet at a first switch from an attached first host in a virtual local area network (VLAN) associated with a virtual routing and forwarding (VRF) instance of a network environment, where the packet is destined to an Internet Protocol version 6 (IPv6) link-local address of a remote second host in the VLAN, and routing the packet at Layer 3 to a second switch, to which the second host is attached. In specific embodiments, the second switch routes the packet at Layer 3 to the second host if the VRF does not include duplicate IPv6 link-local addresses corresponding to the IPv6 link-local address of the second host; the second switch bridges the packet at Layer 2 to the second host if the VRF includes at least one duplicate IPv6 link-local address.
Public/Granted literature
- US20140328343A1 ROUTING INTERNET PROTOCOL VERSION 6 LINK-LOCAL ADDRESSES IN A NETWORK ENVIRONMENT Public/Granted day:2014-11-06
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