Netgear XCM8806 Chassis User Manual - Page 932

NETGEAR 8800 User Manual J jumbo frames L LACP LAG Layer 2 Layer 3 LED license link aggregation link type LLDP load sharing These are Ethernet frames that are larger that 1522 bytes (including the 4 bytes in the CRC). The jumbo frame size is configurable on NETGEAR devices; the range is from 1523 to 9216 bytes. Link Aggregation Control Protocol. LACP is part of the IEEE 802.3ad and automatically configures multiple aggregated links between switches. Link aggregation group. A LAG is the logical high-bandwidth link that results from grouping multiple network links in link aggregation (or load sharing). You can configure static LAGs or dynamic LAGs (using the LACP). Layer 2 is the second, or data link, layer of the OSI model, or the MAC layer. This layer is responsible for transmitting frames across the physical link by reading the hardware, or MAC, source and destination addresses. Layer 3 is the third layer of the OSI model. Also known as the network layer, Layer 3 is responsible for routing packets to different LANs by reading the network address. Light-emitting diode. LEDs are on the device and provide information on various states of the device's operation. See your hardware documentation for a complete explanation of the LEDs on devices running XCM8800. XCM8800 version 11.1 introduces a licensing feature to the XCM8800 software. You must have a license, which you obtain from NETGEAR, to apply the full functionality of some features. Link aggregation, also known as trunking or load sharing, conforms to IEEE 802.3ad. This feature is the grouping of multiple network links into one logical high-bandwidth link. In OSPF, there are four link types that you can configure: auto, broadcast, point-to-point, and passive. Link Layer Discovery Protocol. LLDP conforms to IEEE 802.1ab and is a neighbor discovery protocol. Each LLDP-enabled device transmits information to its neighbors, including chassis and port identification, system name and description, VLAN names, and other selected networking information. The protocol also specifies timing intervals in order to ensure current information is being transmitted and received. Load sharing, also known as trunking or link aggregation, conforms to IEEE 802.3ad. This feature is the grouping of multiple network links into one logical high-bandwidth link. For example, by grouping four 100 Mbps of full-duplex bandwidth into one logical link, you can create up to 800 Mbps of bandwidth. Thus, you increase bandwidth and availability by using a group of ports to carry traffic in parallel between switches. 932 | Appendix E. Glossary