23
votes
Do Wi-Fi and IEEE 802.11 mean the same thing?
IEEE 802.11 is a standard that describes procedures, limits, values, algorithms to enstablish a WLAN connection.
Wi-Fi is a brand name owned by the Wi-Fi Alliance that certifies with pre-defined ...
- 331
18
votes
Accepted
Do Wi-Fi and IEEE 802.11 mean the same thing?
Wi-Fi is IEEE 802.11, the same way that ethernet is IEEE 802.3, token ring is IEEE 802.5, FDDI is IEEE 802.8, etc.
These are some of the IEEE LAN protocols, and the IEEE working groups associated ...
- 101k
15
votes
Do Wi-Fi and IEEE 802.11 mean the same thing?
In Short,Wi-Fi is more of a technology name and 802.11 is the IEEE standard. There are different variants of 802.11 based on your bandwidth ,Modulation schemes etc.
I would always use the specific ...
- 1,412
10
votes
Accepted
Appropriate certificate to ask for a fibre installation (ANSI/TIA-568.3-D?)
ANSI/TIA-568.3-D is the appropriate and up-to-date standard for fiber installations. You should ask your contractor to comply with these guidelines.
When we hire a subcontractor, we always ask for ...
- 1,742
9
votes
Do Wi-Fi and IEEE 802.11 mean the same thing?
802.11 are the IEEE specifications that implement wireless local area networks. In common parlance I think 802.11 is more or less synonomous with Wi-Fi. Note that Wi-Fi is actually a trademarked ...
- 2,122
7
votes
Is Per Vlan Spanning Tree or RPVST an open standard or can it only be implemented by Cisco?
(R)PVST(+) is a proprietary standard defined by Cisco (or a set thereof). However, there are many other vendors and devices supporting it - you may need to check the specifications of your devices.
...
- 88.1k
4
votes
What is the voltage used in ethernet lines (UTP Cables)?
There's many different voltage, and it varies depending of frequencies
From the IEEE 802.3-2008 document borrowed from the official IEE 802.3 get page - but it seems it is no more freely available.
...
- 19.8k
4
votes
What are EUI-48 and EUI-64?
In Ethernet the MAC address was and still is a 48 bit number used to identify Ethernet interfaces.
Two bits are used for special purposes, one to indicate whether the address represented an individual ...
- 13.8k
4
votes
Accepted
Does TIA/EIA-568 permit patch cabling totals longer than 10m?
I believe you are looking at a table that is specific to a MUTOA, which is a special case.
What the ANSI/TIA/EIA 568 Commercial Building Telecommunications Cabling Standard says for the general case ...
- 101k
4
votes
Appropriate certificate to ask for a fibre installation (ANSI/TIA-568.3-D?)
In addition to previous answer, depending on the exact products being used, you may want to also ask for manufacturer certification from your installers of fiber runs and terminations.
Some fiber ...
- 27.4k
3
votes
Which physical layers are part of PROFINET?
Profinet's many things. Mainly a suite of standards, developed by Siemens.
The different things described as Profinet, that you're likely to meet:
S7-protocol
This is a TCP protocol, running on ...
- 346
3
votes
What document or standard designated ffff.ffff.ffff as the Ethernet Broadcast MAC address?
The Ethernet broadcast address with all bits as 1 was first officially defined in the original IEEE 802.3 standard Clause 3.2.3.1, published in 1983:
Broadcast Address. A distinguished, predefined ...
- 88.1k
3
votes
What transmission service gurantees does Ethernet give?
The only "guarantee" in Ethernet is that the frame arrived intact, based on the CRC. There is no mechanism to detect missing or duplicate frames, as there is no concept of "session" or flow" at that ...
- 68k
3
votes
Accepted
What transmission service gurantees does Ethernet give?
Ethernet is designed based on architectural reference models (OSI and/or TCP/IP). While those models are abstract, they do carry a lot of weight in when standards bodies like the IEEE are creating/...
- 27.4k
2
votes
How to properly name TIA-606-B Cabling Subsystem 1 far end identifier for work area equipment outlets?
What you are reading about the fs-an label is for the label on the WAO. That points you to the termination in the TS. Remember that your terminations in a TS are fixed, while the work area outlet, ...
- 101k
2
votes
Accepted
What are currently used L2 and L3 protocols? (other than ethernet and ip4/6)
There's a pretty good Wikipedia article that has a list that's not exhaustive but is quite thorough - check it out here.
As far as currently used? It's probably safe to say that somewhere just about ...
- 6,152
2
votes
Accepted
What is the state of IEEE 802.21 adoption?
Apparently, this standard has still not been adopted to any extent. Wikipedia explains:
Crossing different administrative connectivity domains will require
agreements among different network ...
- 101k
2
votes
What transmission service gurantees does Ethernet give?
Ethernet, IP, and UDP (with optional checksum) each only transport the packet while it is intact - when the checksum doesn't match, the packet is dropped. The only guarantee is that when you receive a ...
- 88.1k
2
votes
Which physical layers are part of PROFINET?
PROFINET uses Industrial Ethernet for the lower layers - so basically, if a piece of hardware can support the technical specifications of IE you could use it. That however is not likely for ancient ...
- 88.1k
1
vote
Accepted
Is there any difference between International and United States patch cable?
Either category 8.1 (class I) or category 8.2 (class II) is compatible with 40GBASE-T or 25GBASE-T - but they cannot be mixed.
Cat 8.1 is designed to interoperate with Cat 6A (U/FTP or F/UTP, US ...
- 88.1k
1
vote
What is the voltage used in ethernet lines (UTP Cables)?
Some answers can be found in IEEE 802.3, however care is needed when reading that document, there were a lot of variants of Ethernet and if you aren't careful it's easy to end up reading the wrong ...
- 13.8k
1
vote
Accepted
2G or 3G network standards
I think your question is way too wide. There's protocol stack for 2G, and for 3G. They're different. Frequencies are different. Even controller/core is at least logically different. For documentation ...
- 1,133
1
vote
Accepted
Are LJ6C outlets suitable for cat6 cabling or only cat5e / is there a different version for cat6 cabling?
For a cabling system to be certified at any category, you must use the same category for all the components in the system. Using Category-6 cabling with Category-5e parts is a waste of money since the ...
- 101k
1
vote
sleeping computer on gigabit ethernet kills multicast performance
My question is: Is there any RFC/protocol which would allow traffic to
ignore flow-control. (Probably not)
Ethernet is not controlled by the IETF RFCs, it is from the IEEE 802.3 committee. Many ...
- 101k
Only top scored, non community-wiki answers of a minimum length are eligible