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1. 发明授权

US11424978B2 Fast forwarding re-convergence of switch fabric multi-destination packets triggered by link failures 有权
公开(公告)号：US11424978B2
公开(公告)日：2022-08-23
申请号：US17102062
申请日：2020-11-23
申请人： Cisco Technology, Inc.
发明人： Putu H. Subagio , Ravikanth Nasika , Saikat Bhattacharya , Sundher Narayanaswamy , Chih-Tsung Huang
IPC分类号： H04L41/0668 , H04L12/18 , H04L12/44 , H04L43/0876 , H04L43/16
摘要： A network device receives multi-destination packets from a first node and forwards at least a first of the multi-destination packets to another network device using a first multi-destination tree with respect to the network device. The network device detects that a link associated with the first multi-destination tree satisfies one or more criteria and, in response to detecting that the link satisfies the one or more criteria, selects a second multi-destination tree with respect to the network device. The network device forwards at least a second of the multi-destination packets to the other network device using the second multi-destination tree.

2. 发明授权

US11750440B2 Fast forwarding re-convergence of switch fabric multi-destination packets triggered by link failures 有权
公开(公告)号：US11750440B2
公开(公告)日：2023-09-05
申请号：US17815250
申请日：2022-07-27
申请人： Cisco Technology, Inc.
发明人： Putu H. Subagio , Ravikanth Nasika , Saikat Bhattacharya , Sundher Narayanaswamy , Chih-Tsung Huang
IPC分类号： H04L41/0668 , H04L12/18 , H04L12/44 , H04L43/0876 , H04L43/16
CPC分类号： H04L41/0668 , H04L12/18 , H04L12/44 , H04L43/0876 , H04L43/16
摘要： A network device receives multi-destination packets from a first node and forwards at least a first of the multi-destination packets to another network device using a first multi-destination tree with respect to the network device. The network device detects that a link associated with the first multi-destination tree satisfies one or more criteria and, in response to detecting that the link satisfies the one or more criteria, selects a second multi-destination tree with respect to the network device. The network device forwards at least a second of the multi-destination packets to the other network device using the second multi-destination tree.

3. 发明授权

US09008095B2 System and method for hardware-based learning of internet protocol addresses in a network environment 有权
标题翻译：网络环境中互联网协议地址的硬件学习系统和方法
公开(公告)号：US09008095B2
公开(公告)日：2015-04-14
申请号：US13633734
申请日：2012-10-02
申请人： Cisco Technology, Inc.
发明人： Shyam Kapadia , Nilesh Shah , Putu H. Subagio
IPC分类号： H04L12/28 , H04L12/56 , H04L12/751 , H04L12/741 , H04L29/12
CPC分类号： H04L45/08 , H04L29/12811 , H04L45/74 , H04L45/745 , H04L49/3009 , H04L49/356 , H04L61/6009
摘要： A method is provided one example embodiment and includes receiving a packet including a source /32 address and a destination /32 address. The source /32 address can indicate an Internet Protocol (IP) address of a source host that sent the packet. The destination /32 address can indicate an IP address of a destination host to which the packet is destined. The method may also include looking up the destination /32 address and the source /32 address in a Forwarding Information Base/adjacency (FIB)/(ADJ) table implemented in a hardware of a leaf switch in a network. Additionally, the method may include adding the source /32 address and corresponding adjacency information to the FIB/ADJ table if the destination /32 address is found in the FIB/ADJ table, and the source /32 address is not found in the FIB/ADJ table. The method may also include forwarding the packet to the destination host.
摘要翻译：提供了一种示例性实施例的方法，并且包括接收包括源/ 32地址和目的地/ 32地址的分组。源/ 32地址可以指示发送数据包的源主机的Internet协议（IP）地址。目的地址/ 32地址可以指示该目的地目的主机的IP地址。该方法还可以包括在网络中的叶片交换机的硬件中实现的转发信息库/邻接（FIB）/（ADJ）表中查找目的地/ 32地址和源/ 32地址。另外，如果在FIB / ADJ表中找到目的地/ 32地址，并且在FIB / ADJ表中没有找到源/ 32地址，则该方法可以包括将源/ 32地址和对应的邻接信息添加到FIB / ADJ表中。 ADJ表。该方法还可以包括将分组转发到目的地主机。

4. 发明授权

US11895028B2 Designated forwarder selection for multihomed hosts in an ethernet virtual private network 有权
公开(公告)号：US11895028B2
公开(公告)日：2024-02-06
申请号：US17817870
申请日：2022-08-05
申请人： Cisco Technology, Inc.
发明人： Putu H. Subagio , Ravikanth Nasika , Saikat Bhattacharya , Chih-Tsung Huang
IPC分类号： H04L45/7453 , H04L12/46 , H04L49/00 , H04L47/125
CPC分类号： H04L45/7453 , H04L12/4641 , H04L47/125 , H04L49/3009
摘要： Embodiments for handling multidestination traffic in a network are described. The multidestination traffic includes packets that are in transit to a multihomed destination in the network. Upon determining the destination is multihomed, a network switch determines a hash value from a selection of header values in the network traffic and uses the hash value to determine if the network switch is a designated forwarder for the multihomed destination. The network switch handles the network traffic according to a designated forwarder status.

5. 发明授权

US11411869B1 Designated forwarder selection for multihomed hosts in an ethernet virtual private network 有权
公开(公告)号：US11411869B1
公开(公告)日：2022-08-09
申请号：US16872053
申请日：2020-05-11
申请人： Cisco Technology, Inc.
发明人： Putu H. Subagio , Ravikanth Nasika , Saikat Bhattacharya , Chih-Tsung Huang
IPC分类号： H04L45/7453 , H04L12/46 , H04L49/00 , H04L47/125
摘要： Embodiments for handling multidestination traffic in a network are described. The multidestination traffic includes packets that are in transit to a multihomed destination in the network. Upon determining the destination is multihomed, a network switch determines a hash value from a selection of header values in the network traffic and uses the hash value to determine if the network switch is a designated forwarder for the multihomed destination. The network switch handles the network traffic according a designated forwarder status.

6. 发明授权

US10848376B2 Fast forwarding re-convergence of switch fabric multi-destination packets triggered by link failures 有权
公开(公告)号：US10848376B2
公开(公告)日：2020-11-24
申请号：US16212449
申请日：2018-12-06
申请人： Cisco Technology, Inc.
发明人： Putu H. Subagio , Ravikanth Nasika , Saikat Bhattacharya , Sundher Narayanaswamy , Chih-Tsung Huang
IPC分类号： H04L12/24 , H04L12/18 , H04L12/44 , H04L12/26
CPC分类号： H04L41/0668 , H04L12/18 , H04L12/44 , H04L43/0876 , H04L43/16
摘要： A network device receives multi-destination packets from a first node and forwards at least a first of the multi-destination packets to another network device using a first multi-destination tree with respect to the network device. The network device detects that a link associated with the first multi-destination tree satisfies one or more criteria and, in response to detecting that the link satisfies the one or more criteria, selects a second multi-destination tree with respect to the network device. The network device forwards at least a second of the multi-destination packets to the other network device using the second multi-destination tree.

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