IEEE 802.1w

An IEEE standard for the Rapid Spanning Tree Protocol (RSTP) which is

 

designed to supersede IEEE 802.1D. RSTP provides considerably faster

 

convergence for topology changes.

IEEE 802.3

Defines carrier sense multiple access with collision detection (CSMA/CD)

 

access method and physical layer specifications.

IEEE 802.3ab

Defines CSMA/CD access method and physical layer specifications for

 

1000BASE-T Fast Ethernet.

IEEE 802.3ac

Defines frame extensions for VLAN tagging.

IEEE 802.3u

Defines CSMA/CD access method and physical layer specifications for

 

100BASE-TX Fast Ethernet.

IEEE 802.3x

Defines Ethernet frame start/stop requests and timers used for flow control on

 

full-duplex links.

IEEE 802.3z

Defines CSMA/CD access method and physical layer specifications for

 

1000BASE Gigabit Ethernet.

IGMP Snooping

Listening to IGMP Query and IGMP Report packets transferred between IP

 

Multicast Routers and IP Multicast host groups to identify IP Multicast group

 

members.

Internet Control

 

Message Protocol

 

(ICMP)

Commonly used to send echo messages (Ping) for monitoring purposes.

Internet Group

 

Management Protocol

 

(IGMP)

A protocol through which hosts can register with their local router for

 

multicast services. If there is more than one multicast router on a given

 

subnetwork, one of the routers is made the “querier” and assumes

 

responsibility for keeping track of group membership.

In-Band Management

Management of the network from a station attached directly to the network.

IP Multicast Filtering

A process whereby this switch can pass multicast traffic along to participating

 

hosts.

LAN Segment

Separate LAN or collision domain.

LED

Light emitting diode used for monitoring a device or network condition.

Link Segment

Length of twisted-pair or fiber cable joining a pair of repeaters or a repeater

 

and a PC.

Local Area Network

 

(LAN)

A group of interconnected computer and support devices.

Glossary-3

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Sunfire B1600 Convergence for topology changes, Access method and physical layer specifications, 1000BASE-T Fast Ethernet