Patent ID: 11956140
Assignee: ARISTA NETWORKS, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. The method of claim 1, further comprising by the network device:
receiving, from a second network service among the plurality of network services, second network traffic, wherein the second network traffic includes the ID of the destination network device and the second network traffic is a serviced version of the first network traffic;
making a first determination, after receiving the second network traffic and using a header of the second network traffic, that the second network traffic has been serviced by the second network service;
making a second determination, after the first determination and using the SAVT and the ID of the destination network device, to select a path through the WAN for reaching the destination network device;
after the second determination, modifying the header of the second network traffic to:
configure a service bit in the header of the second network traffic to indicate that the second network traffic has been serviced;
add a service instance ID of the second network service to a first portion of the header of the second network traffic; and
add second hop stacks information reflecting the path for reaching the destination network device to a second portion of the header of the second network traffic; and

transmitting, after modifying the header of the second network traffic and based on the second hop stacks information, the second network traffic toward the destination network device.