Patent ID: 11909763
Assignee: CISCO TECHNOLOGY, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. A system comprising:
one or more processors; and
one or more memories storing computer-readable instructions, which when executed by the one or more processors, cause the one or more processors to:
determine, by a victim autonomous system (AS), that a first AS is diverting traffic from the victim AS to an unintended destination;
determine, by the victim AS, that the first AS is associated with a first Border Gateway Protocol (BGP) route that includes the victim AS as a destination or as an AS along the first BGP route to the destination; and
send a message to a second AS to avoid traffic being hijacked by the first AS by suppressing utilization of the first BGP route in propagating data to the victim AS, the message to the second AS including:
a set of one or more AS numbers to avoid using to propagate data to the victim AS, wherein the set of one or more AS numbers includes the first AS;
a timestamp;
an expiration interval;
a signature of the victim AS; and
an identifier identifying a certificate for verifying the signature.