Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
can someone explain each of SSID priority means on router settings UI?
i can only find their respective names :
priority 0 > "best efforts" (for what kind of connection?)
priority 1 > "background" (what does this even mean?)
priority 2 > "spare" (what connection is spared by this?)
priority 3 > "excellent effort" (again, for what kind of connection?)
priority 4 > "controlled" (what is being controlled here?)
priority 5 > "video"
priority 6 > "voice"
priority 7 > "network control" (what can it control?)
i only know that priority 5 and 6 are for video and voice streaming respectively.
i don't know what the rest of them all about.
and sadly even google can't help me, not a single article explains about them.
i'm sorry if this sparks confusion because i thought all routers have this kind of setting in them, only in different interface.
my router is ZTE - F609, when setting up an SSID, there's a setting like this, it's said to control the connection priority. for example, if you're a streamer or a Youtube user who watches YT most of your time, then set the priority to "video" which makes streaming goes smoothly at the cost of reduction of other connection types' bandwidth speed (e.g. downloading).
2 Answers
- I Like StoriesLv 71 month ago
SSID = Service Set IDentifier. SSID has ZERO to do with network quality of service. SSID is the Wi-Fi network name your Wi-Fi router broadcasts.
The priority things you mention are in the context of network quality of service, i.e. QoS. Commonly known in the industry as DiffServ.
First thing to factor in - the Internet DOES NOT support DiffServ. Even if you turn it on, the first router on the Internet that your information gets to will dump the Diffserv markings. The Internet is a best effort service in ALL CIRCUMSTANCES. What Diffserv does is append what is known as Diffserv Code Point (DSCP) to packets when they leave your router, so the next router along the path knows what priority this particular packet should have.
Quality of Service has to do with what priority your router gives to information as it is transmitted out of your router, from your home network to the Internet. It has ZERO impact on incoming traffic from the Internet to your home network.
Network control is for network routing protocols, like RIP and OSPF. Those have the highest priority because if they don't get out your network won't work at all. However, for a home network, you don't use network routing protocols, so they are moot. Network control matters for the core routers in big corporate networks.
For voice and video it is critical for receiver that the voice/video packets are delivered on a consistent basis, no big gaps between packets. If there are gaps that is when you get buffering or stuttered speech. Again, it's moot if your context is the Internet.
Quality of Service is a really challenging thing to wrap your head around. Here's what you need to know. The Internet doesn't support Quality of Service. It only impacts traffic leaving your router. For a home network, 80+% of all traffic is coming in from the outside, so QoS doesn't buy you much.
To better answer your questions it would be useful to know which router your talking about, so I could see their explanation. With the above understanding of Diffserv, which happens at layer 3 (IP), there is also the concept of layer 2 priority, which is similar to Diffserv, but only at layer 2 (Ethernet). L2 priority is more meaningless on the Internet than Diffserv, if you understood how routers work that statement would make perfect sense.
Most Asian manufactured (Linksys, Netgear etc..) routers have QoS in their data sheet and manuals, but in reality it doesn't work (because their routers are used to connect consumers to the Internet, the Internet doesn't support QoS and they know it). Routers that QoS actually works in cost in excess of $500. Real Cisco routers for example.
If you really want to know about QoS, ask this guy https://santitoro.com/blog/ He was an author on many of the IETF RFCs for Diffserv.
