This appendix provides reference material describing how X.25 facilities are handled by the Cisco IOS software. When the router originates a call for LAN traffic encapsulation, the facilities in the call are controlled by the facilities configured for the interface and the map statement that specifies the LAN and X.25 encapsulation. When the router accepts an encapsulation call, many facilities are simply ignored. A reverse-charge call is cleared if neither the interface nor the map allows it.
Inserts flow control parameters into the outgoing switched call.
Requested values match the outgoing interface's defaults. Strips parameter values from the outgoing switched call. Requested maximum packet size exceeds the capability of either interface. Lowers the packet size to the largest value that can be supported by the two interfaces. Call is routed from a modulo 128 interface to a modulo 8 interface.