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公开(公告)号：US11785493B2
公开(公告)日：2023-10-10
申请号：US17443301
申请日：2021-07-23
Applicant: Cisco Technology, Inc.
Inventor： Prakash C. Jain , Sanjay K. Hooda , Vinay Saini
CPC classification number: H04W28/0226 , H04L12/4633 , H04W84/12 , H04W88/08
Abstract: An enterprise network may receive a WiFi packet associated with a 5G service (or other type of service) at an access point (AP) in the enterprise network. The enterprise network determines whether the WiFi packet satisfies a first-packet policy associated with the 5G service, where the first-packet policy controls access to a tunnel for traversing the enterprise network to reach the 5G service. If the packet satisfies the policy, the enterprise network queries a map server to identify a location of a 5G border in the enterprise network that is connected to the 5G service. The enterprise network can transmit the WiFi packet on the tunnel with priority to meet SLA using the location of the 5G border.
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公开(公告)号：US10798195B2
公开(公告)日：2020-10-06
申请号：US15834341
申请日：2017-12-07
Applicant: Cisco Technology, Inc.
Inventor： Sanjay K. Hooda , Prakash Jain , Marc P. Comeras , Victor M. Moreno , Atri Indiresan
Abstract: The embodiments herein push notifications to network devices used by a shared service to which a roaming host in a network fabric is subscribed. For example, a network fabric controller can access a VN policy table which stores the relationships between the virtual networks in the network fabric. Using this table, the controller can identify what shared service VNs (i.e., extranets) can communicate with the host's VN. The controller can push out notifications to the network devices used by the shared service VNs to store the new location of the host. That is, the network devices that locally store a location of the host can update their routing caches to point to the new location of the host. In this manner, the network fabric can reduce the time needed to reconverge on the new location of the host by updating the network devices used by the shared service VNs.
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公开(公告)号：US12114198B2
公开(公告)日：2024-10-08
申请号：US18359392
申请日：2023-07-26
Applicant: Cisco Technology, Inc.
Inventor： Prakash C. Jain , Sanjay K. Hooda , Vinay Saini
CPC classification number: H04W28/0226 , H04L12/4633 , H04W84/12 , H04W88/08
Abstract: An enterprise network may receive a WiFi packet associated with a 5G service (or other type of service) at an access point (AP) in the enterprise network. The enterprise network determines whether the WiFi packet satisfies a first-packet policy associated with the 5G service, where the first-packet policy controls access to a tunnel for traversing the enterprise network to reach the 5G service. If the packet satisfies the policy, the enterprise network queries a map server to identify a location of a 5G border in the enterprise network that is connected to the 5G service. The enterprise network can transmit the WiFi packet on the tunnel with priority to meet SLA using the location of the 5G border.
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公开(公告)号：US11563682B2
公开(公告)日：2023-01-24
申请号：US17180090
申请日：2021-02-19
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Sanjay K. Hooda , Victor M. Moreno , Satish Kumar Kondalam
Abstract: In one embodiment, a method generally includes a first edge (E) node in a network receiving an encapsulated data packet, wherein the encapsulated data packet comprises an outer header and a data packet, wherein the outer header comprises a first router locator (RLOC) corresponding to the first E node, wherein the data packet comprises an internet protocol (IP) header, and wherein the IP header comprises a destination endpoint identification (EID) corresponding to a host H. The first E node determines whether the host H is attached to the first E node. And in response to the first E node determining the host is attached to the first E node, the first E node forwards the data packet to the host H. The first E node receives a message from another node after the host H detaches from the first E node and reattaches to another E node, wherein the message comprises the destination EID.
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公开(公告)号：US10659953B2
公开(公告)日：2020-05-19
申请号：US15867547
申请日：2018-01-10
Applicant: Cisco Technology, Inc.
Inventor： Vishal S. Desai , Sanjay K. Hooda
Abstract: Embodiments herein describe pruning a neighbor list sent to a client device using a predefined assignment corresponding to an AP or the client device which can reduce the time required for the client device to roam between APs in a WLAN deployment. The pruned neighbor list serves as a Wi-Fi client steering mechanism to affect which AP the client device chooses when roaming. In one embodiment, a controller uses information regarding fabric nodes in the backend infrastructure to prune the neighbor list to include only the APs that are assigned to the same fabric node as the current AP. In another embodiment, the controller considers a service provider corresponding to the client device when pruning the neighbor lists. The list may include only the neighboring APs assigned to provide Wi-Fi access for the same service provider.
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Patent Agency Ranking
公开(公告)号：US10541919B1
公开(公告)日：2020-01-21
申请号：US16141123
申请日：2018-09-25
Applicant: Cisco Technology, Inc.
Inventor： Sanjay K. Hooda , Satish K. Kondalam , Fabio R. Maino , Victor M. Moreno , Reshad Rahman
IPC: H04L12/56 , H04L12/747 , H04L12/715 , H04L12/24 , H04L29/06 , H04L29/08 , H04L12/931
Abstract: A first map request message is sent from a source network device to a mapping network device to determine a destination network device associated with a destination endpoint device and a security association between the source network device and the destination network device. A first response message is received at the source network device that includes data indicating a mapping between the destination network device and the destination endpoint device and data indicating a security association between the source network device and the destination network device. The data is stored at the source network device. A second map request message is sent from the source network device to the mapping network device to update the data indicative of the mapping or the security association. A second response message is received at the source network device from the mapping network device.
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公开(公告)号：US11463312B2
公开(公告)日：2022-10-04
申请号：US17248349
申请日：2021-01-21
Applicant: Cisco Technology, Inc.
Inventor： Shyamsundar N. Maniyar , Muninder S. Sambi , Sanjay K. Hooda , Rajeev Kumar , Kedar S. Karmarkar , Himanshu Mehra , Nikhil Sharma
IPC: H04L41/08 , H04L41/0806 , H04L61/5014 , H04L61/5076 , H04L61/5046 , H04L101/668 , H04L41/0895
Abstract: Techniques for automated configuration are provided. A first device detects a new device connected by one or more new links in a network, and the first device transmits, to a dynamic host configuration protocol (DHCP) server, a request for a first new subnet. The first device then assigns a first address of the first new subnet to a first new interface of the first device. The first device additionally transmits a second address of the first new subnet to the new device, where the new device uses the second address to establish connectivity to the network.
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公开(公告)号：US10944672B2
公开(公告)日：2021-03-09
申请号：US16725146
申请日：2019-12-23
Applicant: Cisco Technology, Inc.
Inventor： Sanjay K. Hooda , Victor M. Moreno , Satish Kumar Kondalam
IPC: H04L12/741 , H04L12/933 , H04L12/715
Abstract: In one embodiment, a method generally includes a first edge (E) node in a network receiving an encapsulated data packet, wherein the encapsulated data packet comprises an outer header and a data packet, wherein the outer header comprises a first router locator (RLOC) corresponding to the first E node, wherein the data packet comprises an internet protocol (IP) header, and wherein the IP header comprises a destination endpoint identification (EID) corresponding to a host H. The first E node determines whether the host H is attached to the first E node. And in response to the first E node determining the host is attached to the first E node, the first E node forwards the data packet to the host H. The first E node receives a message from another node after the host H detaches from the first E node and reattaches to another E node, wherein the message comprises the destination EID.
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公开(公告)号：US10917343B2
公开(公告)日：2021-02-09
申请号：US16709310
申请日：2019-12-10
Applicant: Cisco Technology, Inc.
Inventor： Sanjay K. Hooda , Satish K. Kondalam , Fabio R. Maino , Victor M. Moreno , Reshad Rahman
IPC: H04L12/56 , H04L12/747 , H04L12/715 , H04L12/24 , H04L29/06 , H04L29/08 , H04L12/931
Abstract: A first map request message is sent from a source network device to a mapping network device to determine a destination network device associated with a destination endpoint device and a security association between the source network device and the destination network device. A first response message is received at the source network device that includes data indicating a mapping between the destination network device and the destination endpoint device and data indicating a security association between the source network device and the destination network device. The data is stored at the source network device. A second map request message is sent from the source network device to the mapping network device to update the data indicative of the mapping or the security association. A second response message is received at the source network device from the mapping network device.
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公开(公告)号：US10812446B1
公开(公告)日：2020-10-20
申请号：US16518896
申请日：2019-07-22
Applicant: Cisco Technology, Inc.
Inventor： Satish Kumar Kondalam , Sanjay K. Hooda , Shyamsundar N. Maniyar
Abstract: The present disclosure provides for dynamic host configuration across multiple sites in software defined networks, by: receiving, from a host, a DHCP (Dynamic Host Configuration Protocol) discover message at an edge network device of a site; adding to the DHCP discover message a sender border network device IP (Internet Protocol) address for a border network device of the site; transmitting the DHCP discover message, from the border network device to a DHCP server located externally of the site to instruct the DHCP server to return a DHCP offer packet including a destination border network device IP address for a destination border network device of a destination site; receiving the DHCP offer packet; and in response to determining that the destination border network device IP address matches the sender border network device IP address, forwarding the DHCP offer packet to the edge network device to perform DHCP forwarding.
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