Browse Definitions :
Definition

Path Computation Element Protocol (PCEP)

The Path Computation Element Communication Protocol (PCEP) is a special set of rules that allows a Path Computation Client (PCC) to request path computations from Path Computation Elements (PCEs).  The protocol also lets the PCEs return responses. 

Path Computation Element (PCE) is a network component, application or node that can compute sophisticated paths through a network by applying computational constraints in real time. Traditionally, network routes are are calculated and managed off-line as part of a network's traffic engineering. In such a scenario, when a new customer comes online, the customer's traffic requirements are evaluated and superimposed on the current network's topology. Defined by IETF RFC 4655, the Path Computation Element (PCE) has a complete picture of flows and paths in the network at the precise moment derived from other Operational Support Software (OSS) programs so it can calculate in real time the optimal path through the network. This path is then used to automatically update router configurations and the traffic engineering database.

The PCE architecture and PCE protocol are defined by the IETF in RFCs 4655 and RFC 5440.

This was last updated in March 2013
SearchNetworking
SearchSecurity
  • man in the browser (MitB)

    Man in the browser (MitB) is a security attack where the perpetrator installs a Trojan horse on the victim's computer that is ...

  • Patch Tuesday

    Patch Tuesday is the unofficial name of Microsoft's monthly scheduled release of security fixes for the Windows operating system ...

  • parameter tampering

    Parameter tampering is a type of web-based cyber attack in which certain parameters in a URL are changed without a user's ...

SearchCIO
  • chief procurement officer (CPO)

    The chief procurement officer, or CPO, leads an organization's procurement department and oversees the acquisitions of goods and ...

  • Lean Six Sigma

    Lean Six Sigma is a data-driven approach to improving efficiency, customer satisfaction and profits.

  • change management

    Change management is a systematic approach to dealing with the transition or transformation of an organization's goals, processes...

SearchHRSoftware
SearchCustomerExperience
  • clickstream data (clickstream analytics)

    Clickstream data and clickstream analytics are the processes involved in collecting, analyzing and reporting aggregate data about...

  • neuromarketing

    Neuromarketing is the study of how people's brains respond to advertising and other brand-related messages by scientifically ...

  • contextual marketing

    Contextual marketing is an online marketing strategy model in which people are served with targeted advertising based on their ...

Close