BROCADE IP PRIMER

Glossary10Base-T An Ethernet specification that is included in the IEEE 802.3 standard.It provides speeds of up to 10 Mbps over twisted-pair copper cables(minimum category 3 required).100Base-T An Ethernet specification that is based on the IEEE 802.3u standard.It provides speeds of up to 100 Mbps over twisted-pair copper cables(minimum category 5 required).1000BaseSX An Ethernet specification that is based on the IEEE 802.3z standard.It provides speeds of up to 1 Gbps (or 1000 Mbps) over multimode fiberopticcables.1000BaseTX An Ethernet specification that is based on the IEEE 802.3z standard.It provides speeds of up to 1 Gbps (or 1000 Mbps) over twisted-paircopper cables (minimum category 5e required).AAA Authentication, Authorization, and Accounting. This is a system to providesecure access and accountability to a network device. See also: accountingand authorization.ABR Area Border Router. This is an OSPF router that has one interface as amember of one area, and a different interface as a member of a differentarea. The router sits, logically, on the border between one area and another.Accounting This is the third "A" in "AAA." Accounting provides a way to seewhen an authenticated user logged in, when they logged out, and what theydid while they were logged in. Some examples include syslog and SNMP traps.ACK Short for "Acknowledgment." In TCP, it is a special segment that is sent toacknowledge that data was received. It is also the last segment in the initial 3-way handshake of a TCP session, and the last segment of a properly-closedTCP session.ACL Access Control Lists. These are a list of rules that define what type of trafficmatches a certain criteria. They are often used to control traffic flow (e.g.,permitting and denying certain types of traffic), but they are also used in Policy-BasedRouting, NAT, and many other functions.Brocade IP Primer 405