System: Network and Communication (Summary)

System: Network and Communication

Definition

This group includes all the parameters for communication and network management.

Setting up or viewing system parameters of this group
Viewing and inspecting indicators of this group

Setting Up or Viewing System Parameters

You can set up or view the following system parameters that are available for different instance types in the running SAP CC Core Server system.

Parameter Definition

CACHE_INVALIDATION_TIMEOUT The timeout in milliseconds for waiting acknowledgments for a cache invalidation request from all the system instances except the updater

COLLECTOR_RTT The estimated network round trip time in milliseconds

CONNECT_DEFAULT_TIMEOUT The timeout in milliseconds for the connection with a remote instance

CONNECTION_DISPATCHER_WRITE_BUFFER Do not use this parameter, except under SAP Support Team supervision or under specific recommendation provided within the SAP CC documentation

CONNECTION_EXTERNAL_WRITE_BUFFER Do not use this parameter, except under SAP Support Team supervision or under specific recommendation provided within the SAP CC documentation

CONNECTION_INTERNAL_WRITE_BUFFER Do not use this parameter, except under SAP Support Team supervision or under specific recommendation provided within the SAP CC documentation

CONNECTION_WRITE_BUFFER Do not use this parameter, except under SAP Support Team supervision or under specific recommendation provided within the SAP CC documentation

DISPATCHER_MAX_SIMULTANEOUS_EXTERNAL_CONNECTION_COUNT The maximum number of simultaneous opened connections to the external service

DISPATCHER_NETWORK_FAILURE_TIMEOUT The timeout in milliseconds for the detection of the down network

DISPATCHER_STARTING_TIMEOUT The starting timeout for the dispatcher instances (in millisecond)

EXTERNAL_DISCOVERY_ENABLED The enablement or disablement of the external discovery function

EXTERNAL_DISCOVERY_MULTICAST_ADDRESS The multicast IP address for the external discovery service

EXTERNAL_DISCOVERY_PORT The port number to access to the discovery service

EXTERNAL_SERVICE_HOST The IP address for communicating with the stateful services of the instance via Message TCP

EXTERNAL_SERVICE_PORT The port number for communicating with the stateful services of the instance via Message TCP

HEARTBEAT_ACTIVATION_PERIOD_COUNT The number of polling periods of inactivity after which the heartbeat mechanism is activated

HEARTBEAT_DEAD_CONNECTION_PERIOD_COUNT The number of polling periods after which an instance is considered as down with the heartbeat mechanism

HEARTBEAT_POLLING_PERIOD The polling period in milliseconds of the heartbeat mechanism

HTTP_SERVER_HOST The IP address or hostname for communicating with the HTTP services of the instance

HTTP_SERVER_PORT The port number for communicating with the HTTP services of the current instance

INTERNAL_DISCOVERY_ENABLED The enablement or disablement of the internal discovery function

INTERNAL_DISCOVERY_MULTICAST_ADDRESS The multicast IP address for the internal discovery service

INTERNAL_DISCOVERY_PORT The port number to access to the internal discovery service

INTERNAL_SERVICE_HOST The listening IP address for multicast services

INTERNAL_SERVICE_PORT The port number to access to the multicast services of the current instance

IP_ADDRESS_VERSION The version of IP addresses which must be used when host names are resolved

MESSAGE_API_AUTHENTICATION_REQUIRED Specifies if the authentication of the clients that use the SAP CC Message TCP technical interface is required

OFF_CLASS The identifier of the Operation Factory Framework (OFF)

PARTITION_SWITCH_TIMEOUT The timeout in milliseconds for the detection of a failed partition switch. This timeout is for each partition.

RENEW_RESERVATION_SEND_TIMEOUT The maximum time (in ms) to be used by the rater instance for sending the renew reservation notification

SPENDING_STATUS_REPORT_SEND_TIMEOUT The maximum time (in ms) to be used by the rater instance for sending the spending status report

TLS_CIPHER_SUITES The list of enabled cipher suites for encrypted communications using SSL/TLS

TLS_PROTOCOLS The list of enabled protocols for encrypted communications using SSL/TLS

WS_SERVER_QUEUE_SIZE The maximum number of operation requests that can be queued when communicating with the instance over the Web Services (WS) technical interface

WS_SERVER_THREAD_COUNT The number of threads reserved for processing the queued WS requests for parallel processing and performance optimization

WS_SSO_ENABLED The Single Sign-On authentication for the Web Services activated or not

XML_SCHEMA_VALIDATION The XML schema validation activated or not

Parameter	Definition
CACHE_INVALIDATION_TIMEOUT	The timeout in milliseconds for waiting acknowledgments for a cache invalidation request from all the system instances except the updater
COLLECTOR_RTT	The estimated network round trip time in milliseconds
CONNECT_DEFAULT_TIMEOUT	The timeout in milliseconds for the connection with a remote instance
CONNECTION_DISPATCHER_WRITE_BUFFER	Do not use this parameter, except under SAP Support Team supervision or under specific recommendation provided within the SAP CC documentation
CONNECTION_EXTERNAL_WRITE_BUFFER	Do not use this parameter, except under SAP Support Team supervision or under specific recommendation provided within the SAP CC documentation
CONNECTION_INTERNAL_WRITE_BUFFER	Do not use this parameter, except under SAP Support Team supervision or under specific recommendation provided within the SAP CC documentation
CONNECTION_WRITE_BUFFER	Do not use this parameter, except under SAP Support Team supervision or under specific recommendation provided within the SAP CC documentation
DISPATCHER_MAX_SIMULTANEOUS_EXTERNAL_CONNECTION_COUNT	The maximum number of simultaneous opened connections to the external service
DISPATCHER_NETWORK_FAILURE_TIMEOUT	The timeout in milliseconds for the detection of the down network
DISPATCHER_STARTING_TIMEOUT	The starting timeout for the dispatcher instances (in millisecond)
EXTERNAL_DISCOVERY_ENABLED	The enablement or disablement of the external discovery function
EXTERNAL_DISCOVERY_MULTICAST_ADDRESS	The multicast IP address for the external discovery service
EXTERNAL_DISCOVERY_PORT	The port number to access to the discovery service
EXTERNAL_SERVICE_HOST	The IP address for communicating with the stateful services of the instance via Message TCP
EXTERNAL_SERVICE_PORT	The port number for communicating with the stateful services of the instance via Message TCP
HEARTBEAT_ACTIVATION_PERIOD_COUNT	The number of polling periods of inactivity after which the heartbeat mechanism is activated
HEARTBEAT_DEAD_CONNECTION_PERIOD_COUNT	The number of polling periods after which an instance is considered as down with the heartbeat mechanism
HEARTBEAT_POLLING_PERIOD	The polling period in milliseconds of the heartbeat mechanism
HTTP_SERVER_HOST	The IP address or hostname for communicating with the HTTP services of the instance
HTTP_SERVER_PORT	The port number for communicating with the HTTP services of the current instance
INTERNAL_DISCOVERY_ENABLED	The enablement or disablement of the internal discovery function
INTERNAL_DISCOVERY_MULTICAST_ADDRESS	The multicast IP address for the internal discovery service
INTERNAL_DISCOVERY_PORT	The port number to access to the internal discovery service
INTERNAL_SERVICE_HOST	The listening IP address for multicast services
INTERNAL_SERVICE_PORT	The port number to access to the multicast services of the current instance
IP_ADDRESS_VERSION	The version of IP addresses which must be used when host names are resolved
MESSAGE_API_AUTHENTICATION_REQUIRED	Specifies if the authentication of the clients that use the SAP CC Message TCP technical interface is required
OFF_CLASS	The identifier of the Operation Factory Framework (OFF)
PARTITION_SWITCH_TIMEOUT	The timeout in milliseconds for the detection of a failed partition switch. This timeout is for each partition.
RENEW_RESERVATION_SEND_TIMEOUT	The maximum time (in ms) to be used by the rater instance for sending the renew reservation notification
SPENDING_STATUS_REPORT_SEND_TIMEOUT	The maximum time (in ms) to be used by the rater instance for sending the spending status report
TLS_CIPHER_SUITES	The list of enabled cipher suites for encrypted communications using SSL/TLS
TLS_PROTOCOLS	The list of enabled protocols for encrypted communications using SSL/TLS
WS_SERVER_QUEUE_SIZE	The maximum number of operation requests that can be queued when communicating with the instance over the Web Services (WS) technical interface
WS_SERVER_THREAD_COUNT	The number of threads reserved for processing the queued WS requests for parallel processing and performance optimization
WS_SSO_ENABLED	The Single Sign-On authentication for the Web Services activated or not
XML_SCHEMA_VALIDATION	The XML schema validation activated or not

Notes

Use the set command of the SAP CC Admin+ user interface to change the parameter values. The immediate change may be not possible and a restart is necessary. Consult the details for each parameter.
Use the get command to retrieve the parameter values manually.
Use the SAP CC Config Tool user interface to set up a complete or partial list of system parameters (restart needed).

Viewing and Inspecting Indicators

You can retrieve the runtime values of the following indicators in your running SAP CC Core Server system:

Indicator Definition

HOSTNAME The name of the machine hosting the instance of the SAP CC system

INSTANCE_ID The unique ID of the corresponding instance in its SAP CC system. This ID includes the type of the instance and a digit number.

Indicator	Definition
HOSTNAME	The name of the machine hosting the instance of the SAP CC system
INSTANCE_ID	The unique ID of the corresponding instance in its SAP CC system. This ID includes the type of the instance and a digit number.

Note

Use the get command of the SAP CC Admin+ user interface to retrieve the indicator values manually.

Recommendation

SAP recommends that you implement and use SAP Solution Manager in combination with the CA Introscope technology and infrastructure to improve your experience.

SAP delivers a packaged and customized version, CA Introscope for SAP, for an efficient technical monitoring of the SAP CC systems in the system landscape.

Refer to the SAP CC Operations Guide for more information about the following elements:

getting started with CA Introscope for SAP CC
installation and setup of supportability tools
technical and performance monitoring

See also: Consult the SAP CC Metric Reference and Performance Troubleshooting documentation for more information about the performance and health data that you can monitor or use for your troubleshooting operations and root cause analysis.