In the government unified construction mode of SDN-WAN solution, the SRv6 tunnel design description is...

Service slices must use SRv6 Policy tunnels, which can be strictly explicit or loose.

The whole network uses NCE-P to calculate the path of the slice network based on the affinity attribute to ensure the optimal path of the whole network and make full use of the link bandwidth while ensuring the service quality.

SRv6Policy tunnels are vertically deployed between districts, counties, cities, and provincial WANs to optimize traffic to improve bandwidth utilization and ensure service quality.

SRO6fPolicy tunnels can be carried in the default slice network or in a non-default slice network. For default slices, SRv6BE is preferred. Services with special requirements can also be carried through SRv6 policy tunnels.