Novell NetWare Protocol Suite

Novell NetWare® contains a group of protocols that perform various functions in a Novell NetWare network. Each protocol in the Novell NetWare protocol suite works with the IPXTM protocol. Novell ZENworks Server Management supports the following protocols in the Novell NetWare suite of protocols:

Novell NetWare Protocol Description

BCAST

Novell NetWare Broadcast Message Notification. The protocol a Novell NetWare server uses to inform an idle workstation that a message is pending. This message a17ppears on the top or bottom line of the monitor on DOS stations.

DIAG

Diagnostic Responder. A protocol used for connectivity testing and information gathering. By default, Novell NetWare clients use the Diagnostic Responder to reply to diagnostic requests.

IPX

Internetwork Packet ExchangeTM. A protocol that routes outgoing data packets across a network. Every Novell NetWare network has a unique address assigned when its servers are configured. IPX routers use this address to route packets through an internetwork.

IPX makes routing decisions based on information compiled by the Routing Information Protocol (RIP).

LSP

Novell NetWare LiteTM Sideband Protocol. A connectionless (datagram) oriented protocol that operates as a sideband for Novell NetWare Lite Transport Protocol (NLTP) connections.

NBIOS

NetBIOS. An emulator that allows workstations to run applications that support IBM* NetBIOS calls. NetBIOS is the IBM standard protocol for applications developed to run peer-to-peer communications on token ring networks.

NCPTM

Novell NetWare Core ProtocolTM. A set of procedures that a file server operating system follows to accept and respond to workstation requests.

An NCP exist for every service a workstation might request from a file server. Common requests handled by the NCP protocols include creating or deleting a file, manipulating directories and files, performing a directory listing, altering the bindery (drive mappings and security), and printing.

NDS®

The NDS protocol, called the Novell Directory Access Protocol (NDAP), is a wire protocol that allows Novell eDirectory to service client requests and to send client requests to other Novell eDirectory servers. NDAP is built based on NCP.

NLP

Novell NetWare Lite Protocol. A protocol that is an integral part of Novell NetWare Lite, which operates on top of the Novell IPX protocol. NLP is an application-layer and service-layer protocol that performs file system and print functions. NLP also uses NLTP, which is similar in function to the transport protocol used in NCP.

NLSPTM

Novell NetWare Link Services ProtocolTM. A link-state routing protocol designed for IPX internetworks.

RIP

Routing Information Protocol. A protocol that automates the process of updating routing tables. Routing is the process of moving network packets between separate networks. With RIP, when one router learns about changes in its routes, it broadcasts this information to neighboring routers so they can update their routing tables. As a result, if a network component fails (such as a router or a phone line), the other network components can inform each other of alternate routes. When the faulty component is repaired, the network changes back to the previous condition.

SAP

Service Advertising Protocol. A protocol that lets Novell NetWare servers advertise their services by name and type. A workstation can broadcast a request to find all services available or a specific service closest to the client.

SER

Novell Serialization (Copy Protection) Packets. Packets that Novell NetWare servers send to other Novell NetWare servers to ensure that each server has a unique serial number.

SNMP

Simple Network Management Protocol. An application-layer protocol designed to facilitate the exchange of management information between network devices. By using SNMP to access management information data (such as packets per second and network error rates), network administrators can easily manage network performance and find and solve network problems.

SPXTM

Sequenced Packet ExchangeTM. A connection-oriented transport protocol that monitors network transmissions to ensure successful delivery of packets. SPX enhances the IPX protocol by supervising data sent across the network. SPX can track data transmissions consisting of a series of separate packets.

SPX also requests acknowledgments from and returns acknowledgments to a communications partner, ensuring successful data delivery. If an acknowledgment request brings no response within a specified time, SPX retransmits the request. After a reasonable number of retransmissions fail to return a positive acknowledgment, SPX assumes the connection has failed and reports the error.

The Novell NetWare print server uses SPX.

WDOG

Watchdog. A maintenance protocol provided with Novell NetWare. Watchdog monitors stations that are logged in to a Novell NetWare server. Watchdog determines whether the Novell NetWare shells are still operating and, if not, releases the connection.