scope:

The present document guides an operator to flexibly and on-demand develop SFC (Service Function Chain) based on SRv6.

First, the present document analyses the requirements and scenarios of SFC in an operator network; then describes scheme design for operator providing value-added services using SRv6 based SFC.

The main content includes five major blocks:

• Usage Scenarios Description - clause 4.

• SRv6-based SFC - clause 5.

• SRv6-aware Network Firewall - clause 6.

• Development Practice of SRv6 based SFC in Operator Network - clause 7.

• Experimental tests - clause 8.

• Conclusion - clause 9.