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- Are ping-times directly related to location distance?
Ping time is directly related to maximum cable length the signal can go until it reaches destination IP Formula for calculating maximum cable length in km by ping time is: ((latency_in_ms÷1000÷2)×3×10^8)÷1000 [km] So if your ping command for example displays a 2 18 ms ping, then this means that signal could travel at maximum 327 km through cable until destination
- Trouble configuring AnyConnect to use a RSA token PIN only for . . .
Bad tokencode, but good PIN detected for token serial number “0001162345211323” assigned to user “suser” in security domain “SystemDomain” from “Microsoft AD - MYDOM” identity source At this point I'm thinking that the new AnyConnect software doesn't know how to interact with RSAs stauto32 dll to get the token code
- What is the reason for T568A and T568B termination?
There are two valid standards for the Ethernet RJ45 pin out, 568A and 568B: 568A provides backwards compatibility when connecting two phone lines, 568B for only one phone line 568B also offers a better prevention of cross talk (interference between the cable pairs)
- A reason why Ethernet has maximum cable length confuses me
There is a newly recognized category (Category-8), but it is shielded cable (vs the UTP cabling for the other categories), and the distance limitation is 30 meters (24 meters for the solid-core horizontal cable, and a total of 6 meters of stranded cable, split between both ends) This category was recognized to support 25GBase-T and 40GBaset-T
- Why are the pins in this RJ45 port not all identical?
As shown on the picture below, the pins on these Ethernet ports are not all the same It looks like pin 3, 5, 7 and 8 (or 1, 2, 4 and 6?) are elevated in order to make contact, but not the others
- Ethernet Cable Orientation - Network Engineering Stack Exchange
If you are dealing with Fast Ethernet, they are present on the pins 0-1 and 3-6 If you simply put the cables color paired side by side, you will produce not a differential line but two sepparate single-ended transmission lines (Part of the signal will go via Pair 2, part via Pair 3) Pin 3 will go thru a pair and Pin 5 will go thru another pair
- ethernet - How does data flow in a twisted-pair cable? - Network . . .
Ethernet over twisted pair uses differential signaling There are no absolute voltage levels but the polarity between paired wires is the signal - either pin 3 is positive to pin 6 are vice versa 10BASE-T uses rather simple Manchester line code Each symbol consist of a polarity change between the paired wires: -+ signals a 1 bit and +-signals
- Cat5 Gigabit not working - Network Engineering Stack Exchange
I have an 8-pin cable running through my wall (from basement to first floor) which was probably an old phone cable, which I terminated with RJ45 plugs on each end - resulting in a Cat5 cable I tested it with a network cable tester and everything works fine
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