Egress marking support for network ports and hybrid ports on 7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

On network port and hybrid port egress, the option to mark MPLS EXP and dot1p values for MPLS packets is provided. For IP packets sent out of network IP interfaces configured on a network port or hybrid port, the option to mark IP DSCP and dot1p values for IP packets is provided. Along with dot1p, the user has an option to mark the DEI bit for both MPLS and IP DSCP packets.

Network policy ID 2 is reserved for the default network QoS policy applied to network and hybrid ports. The default policy cannot be deleted or changed. The default network QoS policy is applied to all network and hybrid ports that do not have another network QoS policy explicitly assigned.

The network QoS policy applied at the network egress (that is, on a network port or hybrid port) determines how or whether the profile state is marked in packets transmitted into the service core network. If the profile state is marked in the service packets, out-of-profile packets are preferentially dropped over in-profile packets at congestion points in the network.

For network egress, traffic remarking in the network QoS policy can be enabled or disabled.

The following table lists the default mapping of FC to dot1p values for egress marking.

For network ingress, the following figure lists the default mapping of dot1p values to FC and profile state for the default network QoS policy.

For network ingress, the following table lists the default mapping of mpls-lsp-exp-classification values to FC and profile state for the default network QoS policy.

For network ingress, the following table lists the default mapping of dscp-classification values to FC and profile state for the default network QoS policy.