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New Member

connecting routers

I am helping with the setup of a networking lab for a class that is running the online cisco curricumlum. Due to lack of room, we have place our racks on different sides of the room. For the lab to fuction properly, be need to connect a router form each rack with cisco serial cables. WE have found that the cables are not long enough to reach and i was wondering if there was a type of adaptor that i could get that would allow me to run CAT 5 cable bewteen the two serial cables. Any help would be great.

  • Other Network Infrastructure Subjects
New Member

Re: connecting routers

If you are talking about a standard serial interface, the answer is "it depends." If you for some reason need a syncronous interface, this will probably not work. You could try a ribbon cable(s) in such a case but you will need to have the appropriate physical DTE/DCE transition.

In the case of back to back serial interfaces for lab environment, I usually set the interfaces up as physical-layer async. Now you just have tx and rx data to wory about. Easily extended using cat 5 with any number of adapters. For example, if your serial cable is DB25, put in DB-25 to DB-9 adapter, then DB-9 to CAT 5. Either set up one of your adapters to do roll over or use rollover (RS-232 rollover NOT ethernet rollover) cable.