What types of Layer 4 (L4) or transport layer switch exist?

1545 pts.
Tags:
Layer 4
Layer 4 Switches
Networking
OSI
SDN
Switches
Transport Layer Switches
How many kinds of Layer 4 switches are there?

Answer Wiki

Thanks. We'll let you know when a new response is added.

Layer 4 defines the quality and nature of data delivery and provides for end-to-end integrity controls such as flow control, retransmission etc. These switches control traffic through the use of policies or filters using Layer 4 or transport layer protocol port IDs to differentiate and act upon application-specific traffic. This layer contains application services and protocol formation (i.e., HTTP for Web traffic, FTP for file transfers, POP3 for e-mail servers, Telnet for terminal sessions, SSL for secure communications, etc.) within each packet. Layer 4 makes switching decisions based on the information held in the transport layer, which allows QoS and security controls to be based on either the data or control layers or a combination of the two.

Based upon functionality you can have different switches like Web load balancers, server load balancers and normal switches doing access control or QoS. The same switch can do all these tasks.

Discuss This Question:  

 
There was an error processing your information. Please try again later.
Thanks. We'll let you know when a new response is added.
Send me notifications when members answer or reply to this question.

REGISTER or login:

Forgot Password?
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

Forgot Password

No problem! Submit your e-mail address below. We'll send you an e-mail containing your password.

Your password has been sent to:

To follow this tag...

There was an error processing your information. Please try again later.

REGISTER or login:

Forgot Password?
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

Thanks! We'll email you when relevant content is added and updated.

Following