What's this ? . . .           Home        Services            About Us            Contact Us       Service Definitions    Testimonials/Referrals  News   IP Internet Protocol. The IP part of TCP/IP; the protocol that is used to route a data packet from its source to its destination over the Internet and managed IP networks. MPLS Short for Multiprotocol Label Switching, an IETF initiative that integrates Layer 2 information about network links (bandwidth, latency, utilization) into Layer 3 (IP) within a particular autonomous system--or ISP--in order to simplify and improve IP-packet exchange. MPLS gives network operators a great deal of flexibility to divert and route traffic around link failures, congestion, and bottlenecks. From a QoS standpoint, ISPs will better be able to manage different kinds of data streams based on priority and service plan. For instance, those who subscribe to a premium service plan, or those who receive a lot of streaming media or high-bandwidth content can see minimal latency and packet loss. When packets enter a MPLS-based network, Label Edge Routers (LERs) give them a label (identifier). These labels not only contain information based on the routing table entry (i.e., destination, bandwidth, delay, and other metrics), but also refer to the IP header field (source IP address), Layer 4 socket number information, and differentiated service. Once this classification is complete and mapped, different packets are assigned to corresponding Labeled Switch Paths (LSPs), where Label Switch Routers (LSRs) place outgoing labels on the packets. With these LSPs, network operators can divert and route traffic based on data-stream type and Internet-access customer. VOIP Short for Voice over Internet Protocol, a category of hardware and software that enables people to use the Internet as the transmission medium for telephone calls by sending voice data in packets using IP rather than by traditional circuit transmissions of the PSTN. One advantage of VoIP is that the telephone calls over the Internet do not incur a surcharge beyond what the user is paying for Internet access, much in the same way that the user doesn't pay for sending individual e-mails over the Internet. There are many Internet telephony applications available. Some, like CoolTalk and NetMeeting, come bundled with popular Web browsers. Others are stand-alone products. VoIP also is referred to as Internet telephony, IP telephony, or Voice over the Internet (VOI) ATM Asynchronous Transfer Mode. The SONET standard for a high-bandwidth, low-delay, connection-oriented, packet-like switching and multiplexing technique technique that uses packets (cells) of fixed length (53-byte cells, 5-byte header and 48-byte payload) that are switched throughout a network over virtual circuits. Standardized by the ITU-T in 1988 to create a Broadband Integrated Services Digital Network (B-ISDN). Its ability to accommodate multiple types of media (voice, video, data) and high-speed makes it a likely player for full service networks based on ADSL and VDSL. Because of the architecture, ATM has the capability to run from 45 Mbps using a DS3 to 2.5 Gbps using an OC-48. Also referred to as BISDN and Cell Relay. Collocation An offsite location where servers are housed, that provides backup power, redundancy, and 24x7 support. T-1 T1 is a widely-deployed, widely-available high-speed full-duplex data transport technology that offers speeds up to 1.544 mbps. This is also equivalent to the ISDN Primary Rate Interface for the U.S. A telephone line connection for digital transmission that can handle 24 voice or data channels at 64 kilobits per second, over two twisted pair wires. T1 lines are used for heavy telephone traffic, or for computer networks linked directly to the Internet. T1 lines are normally used by small and medium-sized companies with heavy network traffic. They can send and receive very large text files, graphics, sounds, and databases very quickly. Sometimes referred to as a leased line, a T1 is too large and expensive for individual home use. T1 is available either point-to-point and Frame Relay. The European T1 or E1 transmission rate is 2.048 million bits per second. DS-3 T3 Channel. In North America, a digital channel which communicates at 45.304 Mbps. 56K A transmission channel that can transmit data at 56,000 bps. DSS Digital Signature Standard. A National Institute of Standards and Technology (NIST) standard for digital signatures, used to authenticate both a message and the signer. DSS has a security level comparable to RSA (Rivest-Shamir-Adleman) cryptography, having 1,024-bit keys.               Home Services Service Definitions Testimonials/Referrals About Us Contact Us News   © 2003 Advanced Business Communications, Inc. All Rights Reserved Hosting provided by Design Image Inc.