Enhancement to the IS-IS protocol for eliminating unwanted network traffic
AssigneeCiena Corporation
InventorNavjot Sharma
Life of this patent
Estimating the term…
Abstract
Systems and methods for enhancing a routing protocol of a telecommunications network are provided. In one embodiment, a method for enhancing the Intermediate System to Intermediate System (IS-IS) routing protocol is provided. The method includes receiving a packet from a first peer device on a network; determining whether a mismatch exists in an authentication of the packet from the first peer device; and responsive to an authentication mismatch, sending a flush instruction to a plurality of peer devices on the network to remove any link state packets from the first peer device. The plurality of peer devices are configured to remove all link state packets from the first peer device regardless of a type of authentication and a type of mismatch.
Claims17
A non-transitory computer-readable medium configured for storing a program that is executable by a processing device in a node, the program enabling the processing device to:
- receive a packet from a first peer device on a network,
- determine whether a mismatch exists in an authentication of the packet from the first peer device, and
- responsive to the authentication mismatch, send a flush instruction to a plurality of peer devices on the network to remove any link state packets from the first peer device at the plurality of peer devices by resetting a lifetime expiration of the link state packets from the first peer device to zero at the plurality of peer devices, and send blocking instructions to the plurality of peer devices to block future packets destined for the first peer device.
A node comprising circuitry configured to:
- receive a packet from a first peer device on a network,
- determine whether a mismatch exists in an authentication of the packet from the first peer device, and
- responsive to the authentication mismatch, send a flush instruction to a plurality of peer devices on the network to remove any link state packets from the first peer device at the plurality of peer devices by resetting a lifetime expiration of the link state packets from the first peer device to zero at the plurality of peer devices, and send blocking instructions to the plurality of peer devices to block future packets destined for the first peer device.
A method comprising:
- receiving a packet from a first peer device on a network;
- determining whether a mismatch exists in an authentication of the packet from the first peer device;
- and
- responsive to the authentication mismatch, sending a flush instruction to a plurality of peer devices on the network to remove any link state packets from the first peer device at the plurality of peer devices by resetting a lifetime expiration of the link state packets from the first peer device to zero at the plurality of peer devices, and sending blocking instructions to the plurality of peer devices to block future packets destined for the first peer device.
Dependencies are inferred from the claim text.