Overview

The remark policies are used to configure the marking behavior for the system at the egress of access SAP access port, network ports, hybrid ports, and network IP interfaces on network ports or hybrid ports (for support available on different 7210 SAS platforms, see Table: Summary of remark policy and attachment points for 7210 SAS-T, 7210 SAS-Sx/S 1/10GE, and 7210 SAS-Sx 10/100GE (network mode) and Table: Summary of remark policy and attachment points for 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12). These policies allow the user to define the forwarding class to egress marking values and allow them to use the available hardware resources efficiently. Based on the packet encapsulation used, the remark policy allows the user to define and associate appropriate policies to service egress, and network QoS policies. The 7210 SAS-Mxp, 7210 SAS-R6, 7210 SAS-R12, 7210 SAS-Sx/S 1/10GE, 7210 SAS-Sx 10/100GE, and 7210 SAS-T support the use of the following types of remark policies for different QoS policies:

dot1p

This policy is used for service egress, access port egress, and network QoS (port type policies).
dscp

This policy is used for access port egress marking and network QoS policies of the port type.
lsp-exp

This policy is used for network QoS policies of the ip-interface type.
dot1p-dscp

This policy is used for access port egress marking and network QoS policies of the port type.
dot1p-lsp-exp-shared

This policy is used for access port egress, access port egress marking, and network QoS policies of the ip-interface type.

The type of the remark policy identifies the bits marked in the packet header. Each of these remark policy types can be associated with only appropriate QoS policies and service entities as listed in the following tables.

Table: Summary of remark policy and attachment points for 7210 SAS-T, 7210 SAS-Sx/S 1/10GE, and 7210 SAS-Sx 10/100GE (network mode)
Remark policy type	QoS policy	Attachment point	Packet header bits marked
dot1p	access-egress policy	Access port	Dot1p bits in L2 Ethernet header for service packets sent out of all access SAPs configured on access ports.
dot1p	network policy (type port)	Network Port and Hybrid Port	Dot1p bits in the L2 Ethernet header for IP packets sent out of network port and hybrid port.
dscp	access-egress policy	Access port	IP DSCP bits in the IP header for service packets sent out of access SAPs configured on access ports.
dscp	network policy (type port)	Network Port and Hybrid Port	IP DSCP bits in the IP header for IP packets sent out of network port and hybrid port. Note: For the IP traffic sent out of L2 SAPs on hybrid ports, the DSCP bits are not marked.
lsp-exp	network policy (type ip-interface)	Network IP interface	EXP bits in the MPLS header for MPLS packets sent out of IP inter-face configured on network port and hybrid port.
dot1p-lsp-exp-shared	access-egress policy	Access port	Dot1p bits in L2 Ethernet header for service packets sent out of access SAPs configured on access ports.
dot1p-lsp-exp-shared	network policy (type IP-interface)	Network IP interface	EXP bits in the MPLS header for MPLS packets sent out of IP interface configured on network port and hybrid port. Dot1p bits in the L2 Ethernet header for MPLS packets sent out of network and hybrid port.
dot1p-dscp	access-egress policy	Access port	Dot1p bits in L2 Ethernet header and IP DSCP bits in the IP header for service packets sent out of access SAPs configured on access ports.
dot1p-dscp	network policy (type port)	Network Port and Hybrid Port	Dot1p bits in the L2 Ethernet header for IP packets and IP DSCP bits in the IP header for IP packets sent out of network port and hybrid port. Note: For the IP traffic sent out of L2 SAPs on hybrid ports, the DSCP bits are not marked.

Table: Summary of remark policy and attachment points for 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12
Remark policy type	Qos policy	Attachment point	Packet header bits marked
dot1p	SAP-egress policy	Service/SAP egress	Dot1p bits in the L2 Ethernet header for service packets sent out of a SAP egress
	Access-egress policy	Access port	Dot1p bits in L2 Ethernet header for service packets sent out of all access SAPs configured on access ports ^¹
	Network policy (port type)	Network port and hybrid port	Dot1p bits in the L2 Ethernet header for IP packets sent out of network port and hybrid port
dscp	Access egress policy	Access port	IP DSCP bits in the IP header for service packets sent out of access SAPs configured on access ports ^¹
dscp	Network policy (port type)	Network port and hybrid port	IP DSCP bits in the IP header for IP packets sent out of network port and hybrid port ^¹
lsp-exp	Network policy (IP-interface type)	Network IP interface	EXP bits in the MPLS header for MPLS packets sent out of IP interface configured on network port and hybrid port
dot1p-lsp-exp-shared	Access egress policy	Access port	Dot1p bits in L2 Ethernet header for service packets sent out of access SAPs configured on access ports ^¹
	Network policy (IP-interface type or port type)	Network IP interface or network port	EXP bits in the MPLS header for MPLS packets sent out of IP interface configured on network port and hybrid port Dot1p bits in the L2 Ethernet header for MPLS packets sent out of network port and hybrid port
	SAP egress policy	Service/SAP egress	Dot1p bits in the L2 Ethernet header for service packets sent out of a SAP egress
dot1p-dscp	Access egress policy	Access port	Dot1p bits in L2 Ethernet header and IP DSCP bits in the IP header for service packets sent out of access SAPs configured on access ports ^¹
	Network policy (port type)	Network port and hybrid port	Dot1p bits in the L2 Ethernet header for MPLS and IP packets and IP DSCP bits in the IP header for IP packets sent out of network port and hybrid port ^¹