SAPs
Page 502 7210-SAS M Services Guide
SAPs
Encapsulations
The following SAP encapsulation is supported on IES services in both network mode and access-
uplink mode:
• Ethernet null
• Ethernet dot1q
• Ethernet QinQ
In 7210 SAS-M access-uplink mode, the following access-uplink SAP encapsulations are
supported:
• Etherent QinQ (access-uplink QinQ SAP)
Routing Protocols
In network mode, the IES IP interfaces are restricted as to the routing protocols that can be defined
on the interface based on the fact that the customer has a different routing domain for this service.
The IES IP interfaces support the following routing protocols:
• OSPF
• Static routing
• IS-IS
In access-uplink mode, only static routing is supported. Dynamic routing protocols such as OSPF,
IS-IS, and others are not supported.
Note that the SAP for the IES IP interface is created at the IES service level, but the routing
protocols for the IES IP interface are configured at the routing protocol level for the main router
instance.
CPE Connectivity Check
Static routes are used within many IES services. Unlike dynamic routing protocols, there is no way
to change the state of routes based on availability information for the associated CPE. CPE
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