Patent ID: 11888733
Assignee: JUNIPER NETWORKS, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method comprising:
receiving, by a first router, a route advertisement including a base node label for a second router, the base node label associated with a segment routing path computed without a flexible-algorithm, wherein the segment routing path computed without the flexible-algorithm is not a constraint-based path;
receiving, by the first router, a packet destined for the second router;
in response to receiving the packet destined for the second router, deducing, by the first router and from the base node label, a node label for the second router by offsetting the base node label of the second router to fall within a node label range of the flexible-algorithm, the deduced node label associated with a segment routing path computed with the flexible-algorithm, wherein the segment routing path computed with the flexible-algorithm is a constraint-based path;
constructing, by the first router, a label stack including the deduced node label for the second router to steer the packet to the second router along the segment routing path computed with the flexible-algorithm; and
forwarding, by the first router, the packet encapsulated with the label stack including the deduced node label for the second router to steer the packet to the second router along the segment routing path computed with the flexible-algorithm.