Cisco Technology, Inc.

Rajvardhan Somraj Deshmukh

Nancy Cam-Winget

Kyle Andrew Donald Mestery

Vincent E Parla

James W Kasper

Techniques are described for managing QUIC connections. The techniques include identifying a first QUIC connection between a first and second device. Determining, from the connection, a first IP address and port number of the first device, a second IP address and port number of the second device, and a first CID. Storing an association between the first and second IP addresses, port numbers and first CID. Identifying a second QUIC connection between the first device and another device. Identifying, from the second connection, the first IP address and port number, a second CID, and a third IP address and port number. Determining if two of the following are met: the second IP address corresponds to the third IP address, the second port number corresponds to the third port number, the second CID corresponds to the first CID, if two are met, the first and second QUIC connections are the same.

Method for identifying and managing QUIC connections for middleboxes

Techniques for encoding metadata representing a policy into a QUIC connection ID are described herein. A metadata-aware network including one or more enforcement nodes, a policy engine, and/or a connection datastore may be utilized to enforce a policy and route communications on a QUIC connection. The policy engine may be configured to encode metadata representing one or more network policies into a QUIC source connection ID (SCID) and/or may store a mapping between the SCID and a corresponding destination connection ID (DCID) in the connection datastore. The policy engine may communicate with a QUIC application server and/or one or more QUIC proxy nodes to encode the SCID into a QUIC packet. The enforcement nodes may access the metadata and enforce the policies via a connection ID included in a QUIC header of a QUIC packet or by performing a lookup in the connection datastore using the connection ID.

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San Jose, CA, United States of America

Rajvardhan Somraj Deshmukh