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公开(公告)号：US11489757B2
公开(公告)日：2022-11-01
申请号：US17360041
申请日：2021-06-28
发明人： Gautam Khera , Constantin Barcaru
IPC分类号： H04L45/122 , H04L45/12 , H04L45/42
摘要： Disclosed herein are system, method, and computer program product aspects for multiple instance Intermediate System to Intermediate System (IS-IS or ISIS) for a multi-area fabric. A network area in a multi-area fabric includes one or more network nodes and a boundary node shared with an other network area of the multi-area fabric outside of the network area. The boundary node can include a first ISIS instance associated with the network area and a second ISIS instance associated with the other network area. The second ISIS instance can be configured to pass information associated with the other network area to the first ISIS instance.
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公开(公告)号：US11792109B2
公开(公告)日：2023-10-17
申请号：US17360048
申请日：2021-06-28
发明人： Gautam Khera , Constantin Barcaru
IPC分类号： H04L45/122 , H04L45/12 , H04L45/42
CPC分类号： H04L45/122 , H04L45/123 , H04L45/42
摘要： Disclosed herein are system, method, and computer program product aspects for multiple instance Intermediate System to Intermediate System (IS-IS or ISIS) for a multi-area fabric. A network area in a multi-area fabric includes one or more network nodes and a boundary node shared with an other network area of the multi-area fabric outside of the network area. The boundary node can include a first ISIS instance associated with the network area and a second ISIS instance associated with the other network area. The second ISIS instance can be configured to pass information associated with the other network area to the first ISIS instance.
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公开(公告)号：US11695683B2
公开(公告)日：2023-07-04
申请号：US17360050
申请日：2021-06-28
IPC分类号： H04L45/122 , H04L45/12 , H04L45/42
CPC分类号： H04L45/122 , H04L45/123 , H04L45/42
摘要： Disclosed herein are system, method, and computer program product aspects for multiple instance Intermediate System to Intermediate System (IS-IS or ISIS) for a multi-area fabric. A network area in a multi-area fabric includes one or more network nodes and a boundary node shared with an other network area of the multi-area fabric outside of the network area. The boundary node can include a first ISIS instance associated with the network area and a second ISIS instance associated with the other network area. The second ISIS instance can be configured to pass information associated with the other network area to the first ISIS instance.
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公开(公告)号：US11770332B2
公开(公告)日：2023-09-26
申请号：US17168943
申请日：2021-02-05
CPC分类号： H04L45/566 , H04L12/18 , H04L12/4633 , H04L41/12 , H04L45/34 , H04L45/44 , H04L45/66 , H04L2101/622
摘要： Provided herein are systems and methods for providing a MAC-based redistribution policy between networks in a multi-area network. A network can have a boundary node that communicates to neighboring networks. Boundary nodes can receive policy updates that identify which services are redistributable across network boundaries. Boundary nodes can receive a packet for a service, translate the packet's encapsulation, and forward the packet across the boundary towards a destination node. Boundary nodes can forward the packet such that it originates in the second network from a virtual node.
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公开(公告)号：US11689446B2
公开(公告)日：2023-06-27
申请号：US17168900
申请日：2021-02-05
发明人： Gautam Khera , Constantin Barcaru
IPC分类号： H04L45/122 , H04L45/12 , H04L45/42
CPC分类号： H04L45/122 , H04L45/123 , H04L45/42
摘要： Disclosed herein are system, method, and computer program product aspects for multiple instance Intermediate System to Intermediate System (IS-IS or ISIS) for a multi-area fabric. A network area in a multi-area fabric includes one or more network nodes and a boundary node shared with an other network area of the multi-area fabric outside of the network area. The boundary node can include a first ISIS instance associated with the network area and a second ISIS instance associated with the other network area. The second ISIS instance can be configured to pass information associated with the other network area to the first ISIS instance.
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公开(公告)号：US20220255852A1
公开(公告)日：2022-08-11
申请号：US17168954
申请日：2021-02-05
发明人： Constantin BARCARU , Gautam Khera , Lava K. Lavu , Gheorghe Croitoru , Deborah E. Fitzgerald , Pamela M. LeBlanc , Irina Maria Militaru , Bianca Elena Neagu
IPC分类号： H04L12/725 , H04L12/761 , H04L12/751 , H04L12/18 , H04L12/46 , H04L29/12
摘要： Provided herein are systems and methods for managing redistribution and remapping of multicast services between networks in a multi-area network. Multicast streams can be sent through networks from a source node towards a boundary node. The boundary node can receive the multicast stream, remap a source node identifier and service instance identifier, and forward the multicast stream into a second network. The boundary node can receive a route for the multicast stream. The route can be installed in a link-state database and can be used to send the multicast stream through the multi-area network from the source node to a destination node.
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7.发明授权公开(公告)号：US09806989B2
公开(公告)日：2017-10-31
申请号：US13905764
申请日：2013-05-30
IPC分类号： H04L12/28 , H04L12/721 , H04L12/707 , H04L12/24 , H04L12/703
CPC分类号： H04L45/127 , H04L41/0668 , H04L45/24 , H04L45/28
摘要： A method, apparatus and computer program product for providing a best route selection rule is presented. A determination is made at a first edge router, whether a second edge router in a network advertises a first BMAC address and at least one other BMAC address When the second edge router advertises only a first BMAC address, then the first BMAC address is used in a routing table for a Layer 3 (L3) next hop for a route. When the second edge router advertises more than one BMAC address, at least one other BMAC address is used in the routing table for said L3 next hop for the route.
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公开(公告)号：US11848856B2
公开(公告)日：2023-12-19
申请号：US17168909
申请日：2021-02-05
发明人： Constantin Barcaru , Gautam Khera
IPC分类号： H04L45/122 , H04L45/12 , H04L45/02 , H04L45/00 , H04L45/42
CPC分类号： H04L45/122 , H04L45/02 , H04L45/123 , H04L45/42 , H04L45/566
摘要： Disclosed herein are system, method, and computer program product aspects for generating and/or using virtual node(s) (e.g., virtual SPB node(s)) in a multi-area fabric (e.g., a multi-area SPB fabric). A multi-area network includes a first network area including a first set of network nodes. The multi-area network further includes a second network area including a second set of network nodes, where the second set of network nodes is outside of the first network area. The multi-area network further includes a virtual node including a logical Intermediate System to Intermediate System (ISIS) node representing at least one of the first set of network nodes and the second set of network nodes.
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公开(公告)号：US10404489B2
公开(公告)日：2019-09-03
申请号：US15966610
申请日：2018-04-30
发明人： Srikanth Keesara , Gautam Khera
IPC分类号： H04L12/46 , H04L12/761 , H04L12/741 , H04L12/721
摘要： Systems and methods are presented herewith for automatically assigning a Multicast Backbone Media Access Control (“BMAC”) address to a switch (or a similar network device) newly-added to a network. Media Access Control (“MAC”) addresses (unicast addresses) that are assigned by default to the switch may be used in a process to generate a multicast BMAC address and assign the multicast BMAC address to the switch, thereby, automatically enabling communications with other network devices over the SPB network. The process involves modifying a bit of a selected unicast address to transform the address into a multicast address. The system may use the modified MAC address as the multicast BMAC address.
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公开(公告)号：US20190222441A1
公开(公告)日：2019-07-18
申请号：US15966610
申请日：2018-04-30
发明人： Srikanth Keesara , Gautam Khera
IPC分类号： H04L12/46 , H04L12/761 , H04L12/741
CPC分类号： H04L12/4633 , H04L12/462 , H04L45/16 , H04L45/66 , H04L45/74 , H04L61/00
摘要： Systems and methods are presented herewith for automatically assigning a Multicast Backbone Media Access Control (“BMAC”) address to a switch (or a similar network device) newly-added to a network. Media Access Control (“MAC”) addresses (unicast addresses) that are assigned by default to the switch may be used in a process to generate a multicast BMAC address and assign the multicast BMAC address to the switch, thereby, automatically enabling communications with other network devices over the SPB network. The process involves modifying a bit of a selected unicast address to transform the address into a multicast address. The system may use the modified MAC address as the multicast BMAC address.
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