Browse Definitions :
Definition

ITU X.225 (ISO 8327)

Contributor(s): Matthew Haughn

ITU X.225 (also known as ISO 8327) is a connection-oriented session layer protocol in the Open Systems Interconnection (OSI) model.  The ITU X.225 protocol specification is a recommendation of the International Telecommunication Union (ITU).

The session layer is layer five in the seven-layer telecommunications model. Session layer protocols provide services for coordinating communication between local and remote applications, establishing, managing and terminating connections. ITU X.225 and other session layer protocols use suspend/resume or checkpoint/rollback capabilities to ensure synchronization of things such as audio and video. Session layer protocols also manage connection security. 

Other protocols that may be used in this layer include AppleTalk RPC Session Control Protocol (SCP) and Zone Information Protocol (ZIP).

This was last updated in July 2013

Continue Reading About ITU X.225 (ISO 8327)

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

SearchCompliance

  • risk assessment

    Risk assessment is the identification of hazards that could negatively impact an organization's ability to conduct business.

  • PCI DSS (Payment Card Industry Data Security Standard)

    The Payment Card Industry Data Security Standard (PCI DSS) is a widely accepted set of policies and procedures intended to ...

  • risk management

    Risk management is the process of identifying, assessing and controlling threats to an organization's capital and earnings.

SearchSecurity

  • tokenization

    Tokenization is the process of replacing sensitive data with unique identification symbols that retain all the essential ...

  • incident response

    Incident response is an organized approach to addressing and managing the aftermath of a security breach or cyberattack, also ...

  • Federal Information Security Management Act (FISMA)

    The Federal Information Security Management Act (FISMA) is United States legislation that defines a framework of guidelines and ...

SearchHealthIT

SearchDisasterRecovery

  • call tree

    A call tree is a layered hierarchical communication model that is used to notify specific individuals of an event and coordinate ...

  • Disaster Recovery as a Service (DRaaS)

    Disaster recovery as a service (DRaaS) is the replication and hosting of physical or virtual servers by a third party to provide ...

  • cloud disaster recovery (cloud DR)

    Cloud disaster recovery (cloud DR) is a combination of strategies and services intended to back up data, applications and other ...

SearchStorage

Close