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Home > Archive > CCNA > May 2001 > Which are DTEs?
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| Which following are DTEs:a router,a pc,a terminal,a bridge,a hub,a multiplexer,a switch,or a protocol transator? | |
| bigworm 2001-05-24, 8:29 am |
| A DTE is a router. | |
| Terje 2001-05-24, 11:00 am |
| DTE: Data Terminal Equipment
A DTE is connected to a DCE (Data Communication Equipment).
Common examples are PC or conventional Terminal connected to a modem (which is then the DCE). A router may also play the role of a DTE.
Terje | |
| Trouble Man 2001-05-24, 11:04 am |
| quote:
A DTE is a router.
That's not correct. A router can be either a DCE or DTE, and most routers by default are DTE's until you tell them to be DCE's. Also computers (usually), multiplexors, terminals, switches, and protocol translators are DTE's. I'm not sure about bridges and hubs, but I think they are, too.
Anyway a DTE is any device on at the user end of a network serving as a source, destination, or both. The connection is made through a DCE, using the clocking signal generated by the DCE.
Almost everything is a DTE except for CSU's/DSU's, modems, and routers that are set to provide a clock rate.
In simple terms, if it provides clocking, it's a DCE, and if it's not a DCE, then it's a DTE. | |
| bigworm 2001-05-24, 2:12 pm |
| Data terminal equipment. Device at the user end of a user-network interface that serves as a data source, destination, or both. DTE connects to a data network through a DCE device (for example, a modem) and typically uses clocking signals generated by the DCE. DTE includes such devices as computers, protocol translators, and multiplexers. Compare with DCE. So, if you use a v.35 cable to connect your host(a router,a pc,a terminal,a bridge,a hub,a multiplexer,and protocol transator)you would connect it to the serial port "dte device" of your network. | |
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| Thank you,Todd says in his book,p489,"DTE consists of terminals,PCs,routers,and bridges-customer-owned end-node and internetworking devices." It looks like that DTE is not a single device,but consists of terminals and PCs and bridges......,
In my opinion,a DTE should generate some data to be transfered,and should be directly connected to a DCE.So I think a bridge is not a DTE device,the same as a hub.But I am not sure. | |
| strikeattack 2001-05-24, 6:19 pm |
| You guys are forgetting something.
When you configure two routers via serial connections, you are setting them into a DTE/DCE relationship, so it can be either one. You set the clockrate on the DCE device.
I agree with Trouble Man. | |
| Trouble Man 2001-05-24, 6:28 pm |
| quote:
When you configure two routers via serial connections, you are setting them into a DTE/DCE relationship, so it can be either one. You set the clockrate on the DCE device.
You'll see on the cable one side will be labeled DCE and the other DTE. On the DCE side you must set the clock rate or it won't work. This IS a question on the CCNA test. Here's the command(s):
>enable
#config t
(config)#int s0
(config-if)#clock rate 56000
It doesn't have to be 56000; it is what ever the speed of the cable is. Once you do this, you have just changed your router from a DTE to a DCE. This only has to be done on the DCE side. | |
| strikeattack 2001-05-24, 6:35 pm |
| Great explanation Trouble Man. | |
| SnoopyDoo 2001-05-25, 12:42 pm |
| The Clock Rate command question was definitely on the exam. Don't forget the space, and make sure you use 56000 not 56 like the bandwidth command. |
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