The NetWare Link/Frame Relay software enables the router to send data frames through the frame relay network. Figure 3 shows the NetWare Link/Frame Relay protocol architectural model.
Note that the SVC service is not currently implemented.
LAN Protocol Stacks |
The LAN protocols supported with this release of NetWare Link/Frame Relay include IPX, AppleTalk, TCP/IP, and source route bridge. |
Link Support Layer (LSL) |
An implementation of the Open Data-Link Interface (ODI) specification, the Link Support LayerTM (LSLTM) software serves as an intermediary between the server/router LAN drivers and the communication protocol, such as IPX, TCP/IP, and AppleTalk. LSL allows one network board to service several communication protocol stacks. |
Inverse ARP |
Determines the Network-layer address from the specific DLCI. |
Multiprotocol Encapsulation |
An encapsulation method, based on RFC 1490, of higher-level Protocol Data Units (PDUs) that allows multiplexing of multiprotocol LAN traffic over a single frame relay link, so that receiving nodes can interpret and demultiplex the PDUs properly. |
Call Support Layer (CSL) |
The call processing coordination between NetWare Link/Frame Relay and the higher-level protocol stack. The configuration and target databases specify connection requests. The CSL target database maintains a directory of remote network/router destinations for each configured WAN media type. The CSL configuration database maintains all configuration information on the specific aspects of each type of transport media. Each target database entry contains the media-specific information needed to establish a call using a specific media type to one remote system. |
Call Control Agent (CCA) |
Works in tandem with the CSL; the CCA contains WAN media-specific connection management logic. |
SVC |
The switched virtual circuit (SVC) is not implemented in this release. |
LMI Rev. 1.0 |
The Local Management Interface (LMI) is an implementation agreement that addresses signaling and other network management functions. |
Annex D |
An implementation standard (ANSI T1.617) that addresses signaling and other network management functions. |
SNMP Agent |
Initiates and responds to requests for management information. |
Frame Relay MIB |
A Management Information Base (MIB) implemented for NetWare Link/Frame Relay to allow it to support SNMP. |
LAP-F/LAP-D |
T1.618 core protocols used as the basis for the NetWare Link/Frame Relay software. |
