mscAal1CesAepRoutingOption 1.3.6.1.4.1.562.36.2.1.119.3.11.1.2

This attribute specifies the type of routing to use for establishing the connection: AAL1 cards accept only porsOnly. Multi-Service Access cards accept all four options. porsOnly means that only the Path Oriented Routing System may be used in establishing a connection. atmOnly means that only the native ATM Routing may be used in establishing a connection. porsFirst means that the switch tries to establish a connection using the Path Oriented Routing System first, and, if the connection cannot be established, it tries native ATM Routing instead. atmFirst means that the switch tries to establish a connection using native ATM Routing first, and, if the connection cannot be established, it tries the Path Oriented Routing System instead.