Services
7210 SAS M Services Guide Page 39
SAP configuration notes when operating the 7210-M in Access-
Uplink mode only
When provisioned in access-uplink mode, the following SAP configuration guidelines are 
applicable.
The Table 4 provides details of SAP and service combinations allowed in access-uplink mode
Table 4: SAP and Service Combinations for 7210 SAS M in access-uplink mode
• ‘svc-sap-type’ parameter value determines the type of SAPs that are allowed to be 
provisioned in a service.
• A physical port can have only one SAP to be part of one service. Multiple SAPS can be 
defined over a physical port but each of these SAPs should belong to a different service.
• In the case of a service’s sap-type is specified as dot1q-preserve, all the SAPs configured 
in the service must have the same VLAN ID. The outermost VLAN tag of the packets 
received on access port is not stripped, when svc-sap-type is set to dot1q-preserve.
• Dot1q Default SAP cannot be configured when svc-sap-type is set to ‘any’
• When svc-sap-type is set to ‘any’ for a NULL SAP, the system processes and forwards 
only packets with no VLAN tag (that is, untagged). All other packets with one or more 
VLAN tags (even those with priority tag only) are not processed and dropped. Users can 
use the service with svc-sap-type set to ‘null-star’, to process and forward packets with 
one or more tags (including priority tag) on a null SAP.
• An ingress QoS policy and accounting policy is assigned per access uplink port and 
cannot be assigned per access uplink SAP.
•The Default QinQ SAP processes only tagged packets received on a QinQ port. All 
tagged packets that do not match the specific SAP tags configured on the same port are 
svc-sap-type Access SAPs Access Uplink SAPs
null-star Null SAP,dot1q Default SAP, 
Default QinQ SAP (*.* SAP)
Q.* SAP, Default QinQ 
SAP (*.* SAP)
dot1q-preserve dot1q SAP (dot1q VLAN tag 
is not stripped on ingress) Q1.Q2 
SAP (Q2 tag VLAN ID must match 
the dot1q SAP VLAN ID)
Q1.Q2 SAP (Q2 tag 
VLAN ID must match the 
dot1q SAP
 VLAN ID)
any dot1q SAP Null SAP, dot1q SAP, 
dot1q explicit null SAP, Q1.Q2 
SAP, Q.* SAP, 0.* SAP
Q1.Q2 SAP, Q.* SAP, 0.* 
SAP
Dot1q SAP (dot1q VLAN tag not stripped on 
ingress), Q1.* SAP
Q1.* SAP