Control Plane Outbound Marking Configuration

Control Plane Outbound Marking refers to the process of marking control plane packets as they exit the network device. This marking ensures that packets are processed in accordance with defined network policies, facilitating consistent and reliable traffic handling.

To mark all outbound control plane packets, configure the appropriate settings under forwarding-options. The following example demonstrates this configuration.

With these settings, control plane traffic is reliably identified and handled according to specified criteria, supporting an optimized network environment.

The following configuration marks outbound control plane packets with specific attributes, such as priority or type of service, to simplify their identification within the network.

This configuration defines how outbound control plane packets are marked by protocol under forwarding-options. Control Plane QoS settings ensure that control traffic is marked and prioritized appropriately. The outbound-marking specifies marking criteria for control plane traffic. In the example, the protocol and remark-types options are configured for L2TPv2, PPP, and RADIUS protocols.

Each protocol uses distinct marking settings:

  • L2TPv2 packets are marked with a ToS codepoint of 64 to ensure they are handled with the designated priority as they traverse the network.

  • PPP packets are marked with a p-bit (priority bit) value of 6, indicating their priority within the network.

  • Similar to L2TPv2, RADIUS packets are marked with a ToS codepoint of 64, ensuring consistent priority treatment across protocols.

supervisor@switch: cfg> show config forwarding-options
{
    "rtbrick-config:forwarding-options": {
      "class-of-service": {
        "control-plane-qos": {
          "outbound-marking": {
            "protocol": [
              {
                "protocol": "l2tpv2",
                "remark-type": "tos",
                "codepoint": 64
              },
              {
                "protocol": "ppp",
                "remark-type": "p-bit",
                "codepoint": 6
              },
              {
                "protocol": "radius",
                "remark-type": "tos",
                "codepoint": 64
              }
            ]
          }
        }
      }
    }
  }