Installation Guide

ExtremeSwitching
ExtremeSwitching is the family of products comprising dierent switch types: Modular (X8 and 8000
series [formerly BlackDiamond] and S and K series switches); Stackable (X-series and A, B, C, and 7100
series switches); Standalone (SSA, X430, and D, 200, 800, and ISW series); and Mobile Backhaul (E4G).
Learn more about ExtremeSwitching at http://www.extremenetworks.com/products/switching-
routing/.
ExtremeWireless
ExtremeWireless products and solutions oer high-density WiFi access, connecting your organization
with employees, partners, and customers everywhere they go. The family of wireless products and
solutions includes APs, wireless appliances, and software. Learn more about ExtremeWireless at http://
www.extremenetworks.com/products/wireless/.
ExtremeXOS
ExtremeXOS, a modular switch operating system, is designed from the ground up to meet the needs of
large cloud and private data centers, service providers, converged enterprise edge networks, and
everything in between. Based on a resilient architecture and protocols, ExtremeXOS supports network
virtualization and standards-based SDN capabilities like VXLAN gateway, OpenFlow, and OpenStack
Cloud orchestration. ExtremeXOS also supports comprehensive role-based policy. Learn more about
ExtremeXOS at http://www.extremenetworks.com/product/extremexos-network-operating-system/.
FHSS
Frequency-Hopping Spread Spectrum is a transmission technology used in Local Area Wireless
Network (LAWN) transmissions where the data signal is modulated with a narrowband carrier signal
that 'hops' in a random but predictable sequence from frequency to frequency as a function of time
over a wide band of frequencies. This technique reduces interference. If synchronized properly, a single
logical channel is maintained. (Compare with DSSS (Direct-Sequence Spread Spectrum).)
IBSS
An IBSS is the 802.11 term for an ad hoc network. See ad hoc mode.
MIC
Message Integrity Check (or Code), also called ‘Michael’, is part of WPA and TKIP. The MIC is an
additional 8-byte code inserted before the standard 4-byte ICV appended in by standard WEP to the
802.11 message. This greatly increases the diculty in carrying out forgery attacks.
Both integrity check mechanisms are calculated by the receiver and compared against the values sent
by the sender in the frame. If the values match, there is assurance that the message has not been
tampered with.
netmask
A netmask is a string of 0s and 1s that mask, or screen out, the network part of an IP address, so that
only the host computer part of the address remains. A frequently-used netmask is 255.255.255.0, used
for a Class C subnet (one with up to 255 host computers). The ".0" in the netmask allows the specific
host computer address to be visible.
OSPF
An interior gateway routing protocol for TCP/IP networks, Open Shortest Path First uses a link state
routing algorithm that calculates routes for packets based on a number of factors, including least hops,
speed of transmission lines, and congestion delays. You can also configure certain cost metrics for the
Glossary