SAP Web Dispatcher
Architecture and Functions of the SAP Web Dispatcher
Server Selection and Load Balancing Using the SAP Web Dispatcher
Determining the Server Group
Server Groups in the Internet Communication Framework
Capacity of an Application Server
SAP Web Dispatcher and SSL
End-to-End SSL
X.509-Based Logon to NW AS from SAP Web Dispatcher
High Availability of the SAP Web Dispatcher
Connection Pooling
Processing Administration Requests
Memory Requirement of the SAP Web Dispatcher
HTTP Load Distribution Using SAP Message Server
Administration of the SAP Web Dispatcher
Operating the SAP Web Dispatcher
Importing the SAP Web Dispatcher
Starting the SAP Web Dispatcher with the Bootstrap Option
Running the Configuration Check
Starting the SAP Web Dispatcher
Parameterization of the SAP Web Dispatcher
Overview of Parameters
SSL Parameters
Parameter Settings for Session Dispatching
Profile Parameters for the ICM and SAP Web Dispatcher
icm/server_port_<xx>
Binding Ports Lower Than 1024 on UNIX
icm/host_name_full
icm/min_threads
icm/max_threads
icm/min_spare_threads
icm/max_services
icm/req_queue_len
icm/listen_queue_len
icm/max_conn
icm/max_sockets
icm/accept_remote_trace_level
icm/log_level
icm/security_log
icm/authfile
icm/keep_alive_timeout
icm/conn_timeout
icm/HTTP/admin_<xx>
icm/HTTP/file_access_<xx>
icm/HTTP/redirect_<xx>
icm/HTTP/logging_<xx>
Logging in the ICM
icm/HTTP/error_templ_path
icm/HTTP/max_request_size_KB
icm/HTTPS/verify_client
icm/HTTP/auth_<xx>
Parameters for Memory Pipes
icm/HTTP/server_cache_<xx>
icm/HTTP/server_cache_<x>/max_entries
icm/HTTP/server_cache_<xx>/clear
icm/HTTP/server_cache_<xx>/expiration
icm/HTTP/server_cache_<xx>/max_name_len
icm/HTTP/server_cache_<xx>/max_ufo_entries
icm/HTTP/server_cache_<xx>/max_net_frag_size
icm/HTTP/server_cache_<xx>/size_MB
icm/HTTP/server_cache_<xx>/memory_size_MB
icm/HTTP/server_cache_<xx>/ufo_expiration
icm/HTTP/server_cache_<xx>/ufo_codelist
Example: Profile File of a SAP Web Dispatcher
Minimal Configuration for the SAP Web Dispatcher
Configuring SAP Web Dispatcher for Large Number of Users
Timeout Options for ICM and Web Dispatcher
Using the Web Administration Interface
Detail Area
Area menu
Processing Administration Requests
Setting Up the Web Administration Interface
Using Web Administration Interface with X.509 Certificate
Using the Command Line Programs icmon and wdispmon
Create Administration User
Using Signals to Control the ICM / Web Dispatcher
Security Information SAP Web Dispatcher
Assigning Logon Groups
SAP Web Dispatcher as a URL Filter
SAP Web Dispatcher as a Web Cache
Metadata Exchange Using SSL
Configuring SAP Web Dispatcher / Message Server for Virtual Host
Configuring the SAP Web Dispatcher to Support SSL
Installing the SAP Cryptographic Library on the SAP Web Dispatch
Setting the SSL Profile Parameters for the SAP Web Dispatcher
Sample Profile for the SAP Web Dispatcher When Terminating SSL
Creating the PSEs and Certificate Requests
Sending the Certificate Requests to a CA
Importing the Certificate Request Responses
Creating Credentials for the SAP Web Dispatcher
Testing the SSL Connection to the SAP Web Dispatcher
Troubleshooting
Maintenance Mode
Error Codes
Setting Up Your Own Error Pages
is/HTTP/show_detailed_errors
Examples of a Dynamic Error Page
Appendix: SAP Load Balancing Protocol Specification
Notational Conventions
Application Server List
Session Identifiers
ABAP Session Identifier
AS Java Session Identifier
External Session Identifier
Load Balancing Identifier
The Url64 encoding scheme