Browse Definitions:
Definition

packet coalescing

Contributor(s): Matthew Haughn

Packet coalescing is the grouping of packets  as a way of limiting the number of receive interrupts and, as a result, lowering the amount of processing required.

In network adapters using Network Driver Interface Specification (NDIS) versions 6.30 and later, packet coalescing is used to group both random and multicast traffic for efficiency.

Packets matching receive filter parameters are cached and released together when any of the following occurs:

  • the cache is filled
  • an expiration timer is reached
  • a packet is received for a different machine and is outside the coalescing filter
  • the device reaches its minimum low water mark
  • an interrupt event message is received, such as a send completion.

Data sent destined for computers A and B on a network where C also resides will be grouped together so that they are consistently passed along to A and B without checking each packet or forwarding all requests to all computers. That process prevents C from being needlessly hit with unsolicited traffic that it would have to filter for its own requests.

This was last updated in April 2015

Continue Reading About packet coalescing

Start the conversation

Send me notifications when other members comment.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

SearchCompliance

  • internal audit (IA)

    An internal audit (IA) is an organizational initiative to monitor and analyze its own business operations in order to determine ...

  • pure risk (absolute risk)

    Pure risk, also called absolute risk, is a category of threat that is beyond human control and has only one possible outcome if ...

  • risk assessment

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

SearchSecurity

  • phishing

    Phishing is a form of fraud in which an attacker masquerades as a reputable entity or person in email or other communication ...

  • vulnerability disclosure

    Vulnerability disclosure is the practice of publishing information about a computer security problem, and a type of policy that ...

  • incident response

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

SearchHealthIT

SearchDisasterRecovery

  • business continuity and disaster recovery (BCDR)

    Business continuity and disaster recovery (BCDR) are closely related practices that describe an organization's preparation for ...

  • business continuity plan (BCP)

    A business continuity plan (BCP) is a document that consists of the critical information an organization needs to continue ...

  • call tree

    A call tree -- sometimes referred to as a phone tree -- is a telecommunications chain for notifying specific individuals of an ...

SearchStorage

  • flash memory

    Flash memory, also known as flash storage, is a type of nonvolatile memory that erases data in units called blocks.

  • NAND flash memory

    NAND flash memory is a type of nonvolatile storage technology that does not require power to retain data.

  • NOR flash memory

    NOR flash memory is one of two types of nonvolatile storage technologies.

SearchSolidStateStorage

  • hybrid hard disk drive (HDD)

    A hybrid hard disk drive is an electromechanical spinning hard disk that contains some amount of NAND Flash memory.

Close