Service Function Chain (SFC)

Available in VPC

The Service Function Chain (hereinafter SFC) can define the network flow (chain) of the endpoint and the SFC subnet created in the transit VPC for specific destinations.
The detailed features of SFC are as follows:

• The resources within the transit VPC that can define flow are as follows:
  • Endpoint : IGW(Internet Gateway), VGW(Virtual Gateway), Transit VPC Connect
  • Inline Load Balancer created in the private LB subnet
  • Specific NIC of virtual appliances created in the SFC subnet
• SFC flows in a one-way direction. If you defined a flow for ingress, you must also define a flow for egress.

View Service Function Chain list

To check the information by Service Function Chain in the list of Service Function Chains that you have created and are in operation, follow these steps:

1. From within the VPC environment on the NAVER Cloud Platform console, click Services> Networking> VPC in order.
2. Click the Service Function Chain(SFC) menu.
3. When the list of Service Function Chains appears, view the summarized information, or click a public IP to see details.
   • Service Function Chain name: name of the Service Function Chain
   • Service Function Chain ID: ID value of the Service Function Chain
   • Status: status of the Service Function Chain
     • Operating: status in which the creation of the NAT Gateway has been completed with the information you entered, and the route table is available for use
     • Configuring: status in which the Service Function Chain is being configured with the information you entered
   • VPC name: name of the VPC using the Service Function Chain
   • Zone: zone in which the Service Function Chain is used
   • [Chain details] tab: set the details of the defined chain
   • Note: memo related to the server. You can edit it by clicking the [Edit] button

Create Service Function Chain

To create a Service Function Chain, follow these steps:

1. From within the VPC environment on the NAVER Cloud Platform console, click Services> Networking> VPC in order.

2. Click the Service Function Chain(SFC) menu.

3. Click the [Create Service Function Chain] button.

4. When the Create Service Function Chain popup window appears, enter the information for the Service Function Chain to create

   • SFC name: enter the name of the server to create, in 3 to 30 characters using English letters, numbers, and/or hyphens (-).
   • VPC: select the transit VPC to use the Service Function Chain
   • Zone: select the zone to use the Service Function Chain
   • Destination subnet: enter a destination in CIDR format, and click the [Add] button
   • Chain: select and adjust endpoint, server, and Load Balancer according to the network flow sequence
   Note

   • At the end of the chain sequence, you must place an endpoint (Internet Gateway, Virtual Private Gateway, Transit VPC Connect).

5. Click the [Create] button.

6. Check the status of the created Service Function Chain in the Service Function Chain page.

   • Opearating: status in which the creation of the Service Function Chain has been completed with the information you entered, and it is available for use
   • Configuring: status in which the Service Function Chain is being configured with the information you entered

Set Service Function Chain

To add or change settings to the created Service Function Chain, follow these steps:

1. From within the VPC environment on the NAVER Cloud Platform console, click Services> Networking> VPC in order.
2. Click the Service Function Chain(SFC) menu.
3. Select the desired Service Function Chain in the list, and then click the [Set Service Function Chain] button.
4. When the Set Service Function Chain popup window appears, change the routing settings
   • Destination subnet: enter a destination in CIDR format, and click the [Add] button
   • Chain: select and adjust endpoint, server, and Load Balancer according to the network flow sequence
5. Click the [Edit] button.

Delete Service Function Chain

To delete the Service Function Chain which is created by you and in operation, follow these steps:

1. From within the VPC environment on the NAVER Cloud Platform console, click Services> Networking> VPC in order.
2. Click the Service Function Chain(SFC) menu.
3. Click the Service Function Chain to be deleted and click the [Delete] button.
4. When the Delete Service Function Chain popup window appears, click the [Delete] button.