Patent · US Active

Techniques for decreasing multiprotocol label switching entropy label overhead

US9912598B2 · kind B2 · utility

2Cited by

2References

20Claims

0Family size

Assignee

Cisco Technology, Inc. · US

Inventors

Danmu Wu · Shanghai, CN
Jianda Liu · Shanghai, CN
Yunpeng Zhang · Beijing, CN
Feng Cai · Shanghai, CN

Key dates

Filing date	Jun 16, 2016
Grant date	Mar 6, 2018
Priority date	—
Expiry date	Jul 30, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH04L45/24
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method is provided in one embodiment and includes receiving at a network element an encapsulated packet and determining whether both an ECMP/LAG Existing (“ele”) flag and an Entropy Label Capability (“elc”) flag are set for an egress node of the packet in a Label Distribution Protocol (“LDP”) database of the network element. If both the ele and elc flags are set for the egress node of the packet in the LDP database, the method further includes determining whether the network element is an ingress node for the packet and, if the network element is the ingress node for the packet, pushing an Entropy Label (“EL”) and an Entropy Label Indicator (“ELI”) onto an MPLS stack of the packet.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.