The remark policy configuration guidelines for the 7210 SAS-K 2F1C2T are the following.
The 7210 SAS-K 2F1C2T marks the dot1p configured in the marking policy, only if the node adds one or two tags or if it replaces existing tags. It does not touch the VLAN tag which represents customer payload (for example, the 7210 SAS-K 2F1C2T does not implement marking for packets when forwarding traffic out of dot1q range SAP or a null SAP).
A limited number of unique remark policies are available to be shared among all the different types of remark policies. In other words, dot1p, dscp, and dot1p-dscp remark policy types share the available resources and scaling one type of remark policy reduces the amount policies allowed for other type of remark policy.
The user also has an option to preserve the dot1p values in the received packet. See the CLI description for the config service sap egress dot1p-inner and config service sap egress dot1p-outer CLI commands in the 7210 SAS-D, Dxp, K 2F1C2T, K 2F6C4T, K 3SFP+ 8C Services Guide.