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| Glossary |
| Description |
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| H.323 allows dissimilar communication devices to communicate |
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| H.323 |
| with each other by using a standardized communication |
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| protocol. H.323 defines a common set of CODECs, call setup | |
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| H |
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| and negotiating procedures, and basic data transport methods. | |
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| HTTP(Hypertext Transfer |
| The protocol used by Web browsers and Web servers to |
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| Protocol) |
| transfer files, such as text and graphic files. |
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| ICMP(Internet Control |
| Network layer Internet protocol that reports errors and provides |
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| Messages Protocol) |
| other information relevant to IP packet processing. |
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| Largest global Internetwork, connecting tens of thousands of |
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| Internet |
| networks worldwide and having a “culture” that focuses on |
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| research and standardization based on |
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| Network layer protocol in the TCP/IP stack offering a |
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| IP(Internet Protocol) |
| connectionless Internetwork service. IP provides features for |
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| addressing, | |
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| reassembly, and security. |
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| Company that provides Internet access to other companies and | ||
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| ISP(Internet Service |
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| Provider) |
| individuals. |
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| IKE establishes a shared security policy and authenticates keys |
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| IKE (Internet Key |
| for services (such as IPSec) that require keys. Before any IPSec |
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| Exchange) |
| traffic can be passed, each router/firewall/host must verify the |
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| identity of its peer. |
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| A framework of open standards that provides data |
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| IPsec(IP Security) |
| confidentiality, data integrity, and data authentication between |
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| participating peers. |
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| L | LAN(Local Area Network) |
| geographic area (up to a few thousand meters). LANs connect | |
| workstations, peripherals, terminals, and other devices in a | ||||
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| single building or other geographically limited area. |
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