Lltd (Link Layer Topology Discovery); Http Vs. Https - Wirepath Surveillance WPS-500-PTZ-IP Installation And User Manual

WPS-500-PTZ-IP Installation Manual

18.4- LLTD (Link Layer Topology Discovery)

LLTD, or Link Layer Topology Discovery, is a technology used by Windows operating system to automatically discover devices on a
network without having to know any information. When properly configured on the computer and the network device, LLTD will allow a
user to find the new device on a map of the network in Windows Network Settings. LLTD was first implemented in Windows Vista and
has been supported since. The advantage of LLTD is the ability to see an animated representation of the network topology as it
applies to installed hardware. Most advanced IT installers will not have a need for this setting to be enabled.

18.5- HTTP vs. HTTPS

HTTP, or HyperText Transfer Protocol, is the set of rules computers follow to send and receive data when they access servers over
the Internet. Almost all communication between your Internet browser and a web server you access is being sent on this protocol. By
default, HTTP communication happens through port 80. HTTP is not a secure form of communication, meaning that other people or
computers could be overhearing the messages sent over this protocol. Usually this is fine since information sent over HTTP is very
routine requests and replies to allow your browser to load websites. If you are sending private information, like credit card info or
passwords, an HTTP is not a safe way to send or receive it.
HTTPS, known as Secure HyperText Transfer Protocol, is typically used for passing any data over the Internet that must remain
confidential. It is very similar in most respects to standard HTTP. However, whereas HTTP can be viewed by anyone at any time
with the right knowledge, HTTPS connections go through an extra validation process and then open a private "tunnel" using
encryption so that only the sending and receiving computer can read the data. Most HTTPS connections use "SSL" or "TLS" type
encryption to establish an encryption key that are handed to the computers at each end of a transmission, but not the ones in the
middle. HTTPS connections typically use port 443. HTTPS is typically a little slower than HTTP, but the payoff is security.
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