• November 07, 2006 07 Nov'06

    Network access control -- More than endpoint security

    Network access control (NAC) holds a great deal of promise for network security, but sorting out the market and product options is a challenge. In this special report, you'll learn how to gauge if your enterprise is ready for NAC, what the ...  Continue Reading

  • November 07, 2006 07 Nov'06

    Migrating to MPLS, part 2

    Network engineers must be on top of MPLS technology and prepare their current networks for the transition to MPLS from other transport options. This tip continues Doug Downer's series on migrating to MPLS; here, he outlines the typical MPLS site and...  Continue Reading

  • November 06, 2006 06 Nov'06

    How long does CCNP certification last?

    It's difficult to keep up-to-date on recertification, but here, our Cisco Training expert, David Minutella, lets us know how long our CCNP certification lasts.  Continue Reading

  • November 06, 2006 06 Nov'06

    WATS (wide-area telephone service)

    WATS (wide-area telephone service) is a specialized form of fixed-rate long-distance telecommunication service.  Continue Reading

  • November 06, 2006 06 Nov'06


    Wideband is a transmission medium or channel that has a wider bandwidth than one voice channel (with a carrier wave of a certain modulated frequency).  Continue Reading

  • November 06, 2006 06 Nov'06

    TDMA (time division multiple access)

    TDMA (time division multiple access) is a technology used in digital cellular telephone communication that divides each cellular channel into three time slots in order to increase the amount of data that can be carried. (Continued...)  Continue Reading

  • November 06, 2006 06 Nov'06

    out-of-band signaling

    Out-of-band signaling is telecommunication signaling (exchange of information in order to control a telephone call) that is done on a channel that is dedicated for the purpose and separate from the channels used for the telephone call.  Continue Reading

  • November 06, 2006 06 Nov'06

    digital loop carrier (DLC)

    DLC also is an abbreviation for Data Link Control.  Continue Reading

  • November 06, 2006 06 Nov'06

    E-carrier system

    To see the relationship between the E-carrier system, the T-carrier system, and DS0 multiples, see digital signal X. E1 (or E- is a European digital transmission format devised by the ITU-TS and given the name by the Conference of European Postal ...  Continue Reading

  • November 06, 2006 06 Nov'06

    committed information rate (CIR)

    committed information rate  Continue Reading