The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 30, 2024

Filed:

Mar. 31, 2021
Applicant:

Juniper Networks, Inc., Sunnyvale, CA (US);

Inventors:

Zhaohui Zhang, Westford, MA (US);

Shraddha Hegde, Bangalore, IN;

Srihari Ramachandra Sangli, Bengaluru, IN;

Kaliraj Vairavakkalai, Fremont, CA (US);

Assignee:

Juniper Networks, Inc., Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 45/50 (2022.01); H04L 12/46 (2006.01); H04L 45/02 (2022.01); H04L 45/24 (2022.01); H04L 45/44 (2022.01); H04L 45/74 (2022.01);
U.S. Cl.
CPC ...
H04L 45/507 (2013.01); H04L 12/4633 (2013.01); H04L 45/04 (2013.01); H04L 45/24 (2013.01); H04L 45/44 (2013.01); H04L 45/74 (2013.01);
Abstract

Techniques are described for using route target constraint to filter routes advertised to a node in a seamless Multiprotocol Label Switching (MPLS) network. For example, a first router of a first network may generate a first border gateway protocol (BGP) message to advertise routing information for a first node of the first network, the first BGP message indicating a transport class and specifying an address-specific route target, the transport class comprising one or more tunnels to the first node that share common characteristics. In response to receiving a second BGP message originated by second node of a second network, the second BGP message comprising the address-specific route target, the first router sends the first BGP message to a second router of the second network for sending to the second node to cause the second node to import the routing information.


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