Is SIFS shorter than DIFS?

Lisa Phifer, Core Competence

In a 802.11 specification, is it possible that the length of SIFS is shorter than DIFS?

According to IEEE 802.11-1999, the Short Inter-Frame Space (SIFS) is the shortest of the interface spaces. SIFS is used with ACK and CTS frames, and for subsequent frames in multi-fragment data burst. The DCF Inter-Frame Space (DIFS) is used with data and management frames. Figure 49 in clause 9.2.3 of the standard shows the relationship between SIFS and DIFS, with SIFS always being shorter than DIFS.

This was last published in May 2003

Dig Deeper on Network Infrastructure

Related Q&A from Lisa Phifer

Remote access vs. site-to-site VPN: What's the difference?

A remote access VPN connects remote users from any location to a corporate network. A site-to-site VPN, meanwhile, connects individual networks to ... Continue Reading

What are licensed and unlicensed wireless frequency bands?

Licensed and unlicensed frequency bands serve different purposes for wireless communications. Find out the differences between the two bands and the ... Continue Reading

Tips for managing two VPN connections at the same time

As the remote workforce increases, network managers and users might opt to set up two concurrent VPN connections from the same remote device. But ... Continue Reading

SearchUnifiedCommunications

Google utilizes AI for Series One Meet hardware

Google partners with Lenovo in developing video conferencing hardware for the Google Meet service. The Series One device uses ...

Zoom launches two-factor authentication

Video conferencing company Zoom has introduced two-factor authentication, a feature already available in competing products from ...

Slack leans on Connect for future growth

Slack executives tout Slack Connect as a source of additional revenue over the next four months. The collaboration company ...

SearchMobileComputing

Faster iPads unveiled at Apple Event

At this week's Apple Event, the company unveiled an iPad Air powered by the company's fastest A14 processor. Apple also ...

Nvidia's Arm Limited buy could shake mobile industry

Nvidia announced a $40 billion deal to buy chip designer Arm Limited. Now, it must convince regulators and smartphone makers that...

Android 11 release raises separation of work, personal data

The new Android 11 release keeps work and personal information separate, while limited permissions give users greater control of ...

SearchDataCenter

6 steps for effective real-time monitoring across hybrid IT

Infrastructure monitoring can span multiple stakeholders, data center sites and metrics. Use the five W's to establish a ...

IBM roadmap promises a 1,121-qubit quantum computer by 2023

IBM outlined plans to deliver a series of quantum computers over the next three years culminating with IBM Quantum Condor, a ...

Mega Hopex update focuses on aligning IT to business goals

Mega's Hopex upgrade adds IT Business Management, Information Architecture and Risk Management features designed to help users ...

SearchITChannel

CompTIA's lobbying efforts and how MSPs could self-regulate

CompTIA's Todd Thibodeaux talks with Dave Sobel about the current lobbying efforts by the MSP industry and how it could start ...

Diversity in IT channel for 2020: It's time we take action

Dave Sobel looks to move beyond just discussing becoming more diverse in the workplace, with IT channel companies championing ...

Accenture cloud investment to reach $3 billion

Accenture said the $3 billion investment aims to empower its growing cloud-based agenda, which will be spearheaded by the ...

Is SIFS shorter than DIFS?

Dig Deeper on Network Infrastructure

802.11n

Tool defeats binary diffing, automated reverse engineering of Windows security patches

How to prevent wireless DoS attacks

Risky Business: Understanding WiFi threats

Related Q&A from Lisa Phifer

Remote access vs. site-to-site VPN: What's the difference?

What are licensed and unlicensed wireless frequency bands?

Tips for managing two VPN connections at the same time

Start the conversation

0 comments

Please create a username to comment.

SearchUnifiedCommunications

Google utilizes AI for Series One Meet hardware

Zoom launches two-factor authentication

Slack leans on Connect for future growth

SearchMobileComputing

Faster iPads unveiled at Apple Event

Nvidia's Arm Limited buy could shake mobile industry

Android 11 release raises separation of work, personal data

SearchDataCenter

6 steps for effective real-time monitoring across hybrid IT

IBM roadmap promises a 1,121-qubit quantum computer by 2023

Mega Hopex update focuses on aligning IT to business goals

SearchITChannel

CompTIA's lobbying efforts and how MSPs could self-regulate

Diversity in IT channel for 2020: It's time we take action

Accenture cloud investment to reach $3 billion

Related Resources

Dig Deeper on Network Infrastructure

802.11n

Tool defeats binary diffing, automated reverse engineering of Windows security patches

How to prevent wireless DoS attacks

Risky Business: Understanding WiFi threats

Related Q&A from Lisa Phifer

Start the conversation

0 comments

Register

Login

Forgot your password?

Your password has been sent to:

Please create a username to comment.