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Home > Archive > CCIE > May 2002 > Ipx
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| Soray 2002-05-28, 12:39 pm |
| When the client is trying to access a novell server. Is the client sending and advertisement or a broadcast. Is Sap advertisements and Sap broadcasts the same, or how are they different. Can I please get some feedback. I thought a SAP advertisement was the same as an sap broadcast. | |
| LANlord 2002-05-28, 3:21 pm |
| The following is an exerpt from this link: http://www.cisco.com/univercd/cc/td...oc/netwarep.htm
The Service Advertisement Protocol (SAP) is an IPX protocol through which network resources, such as file servers and print servers, advertise their addresses and the services they provide. Advertisements are sent via SAP every 60 seconds. Services are identified by a hexadecimal number, which is called a SAP identifier (for example, 4 = file server, and 7 = print server).
A SAP operation begins when routers listen to SAPs and build a table of all known services along with their network address. Routers then send their SAP table every 60 seconds. Novell clients can send a query requesting a particular file, printer, or gateway service. The local router responds to the query with the network address of the requested service, and the client then can contact the service directly.
SAP is pervasive in current networks based on NetWare 3.11 and earlier but is utilized less frequently in NetWare 4.0 networks because workstations can locate services by consulting a NetWare Directory Services (NDS) Server. SAP, however, still is required in NetWare 4.0 networks for workstations when they boot up to locate an NDS server.
Happy Networking  | |
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