Cisco Technology, Inc.

Steven Richard Stites

Prashanth Patil

James Neil Guichard

K Tirumaleswar Reddy

Syam Sundar V Appala

Morteza Ansari

A network node in a service function chain system receives a peer detection packet from a service function device in a service function path. The peer detection packet includes an inner packet with a header, such as a network service header. The network node detects a status indicator in the header that indicates a degradation in performing a service function at the service function device. The network node adjusts the service function path to compensate for the degradation in performing the service function at the service function device.

Network service header (NSH) relaying of serviceability of a service function

A device obtains access to an application resource from a remote application server based on an authenticated device identifier. The device sends a request to access the application resource provided by the remote application server. The device receives a first message from the remote application server directing the device to send an authentication message to a device identity server. The authentication message requests an authenticated device identity for the device. The device attaches metadata associated with the device to the authentication message and sends the authentication message with the attached metadata to the device identity server. The device receives the authenticated device identity from the device identity server and sends the authenticated device identity to the remote application. The device obtains access to the application resource from the remote application server based on the authenticated device identity.

Verified device identity providing context to application

In one embodiment, a system, method, and computer program product are disclosed for authenticating a packet received from a client node, storing the results of the authentication in a cache memory of a service classifier node, and including the results of the authentication in a network service header of a packet before forwarding the packet to downstream service nodes. In one embodiment, the initial authentication is performed in conjunction with an authentication node.

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Austin, TX, United States of America

Steven Richard Stites