Extreme Networks ExtremeWare XOS Guide - Page 648

Glossary
ExtremeWare XOS 11.3 Concepts Guide
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CLEAR-Flow CLEAR-Flow allows you to specify certain types of traffic to perform
configured actions on. You can configure the switch to take an
immediate, preconfigured action to the specified traffic or to send a
copy of the traffic to a management station for analysis. CLEAR-Flow
is an extension to ACLs, so you must be familiar with ACL policy files
to apply CLEAR-Flow.
CLI Command line interface. You use the CLI to monitor and manage the
switch.
cluster In BGP, a cluster is formed within an AS by a route reflector and its
client routers.
CNA Converged Network Analyzer. This application suite, available from
Avaya, allows the server to determine the best possible network path.
The CNA Agent is a software piece of the entire CNA application that
you install on Extreme Networks devices. You use the CNA Agent
software only if you are using the Avaya CNA solution, and the CNA
Agent cannot function unless you also obtain the rest of the CNA
application from Avaya.
combo port Combination port. On some Extreme Networks devices (such as the
Summit X450 switch), certain ports can be used as either copper or
fiber ports.
common link In EAPS, the common link is the physical link between the controller
and partner nodes in a network where multiple EAPS share a
common link between domains.
controller node In EAPS, the controller node is that end of the common line that is
responsible for blocking ports if the common link fails, thereby
preventing a superloop.
control VLAN In EAPS, the control VLAN is a VLAN that sends and receives EAPS
messages. You must configure one control VLAN for each EAPS
domain.
CRC Cyclic redundancy check. This simple checksum is designed to detect
transmission errors. A decoder calculates the CRC for the received
data and compares it to the CRC that the encoder calculated, which is
appended to the data. A mismatch indicates that the data was
corrupted in transit.
CRC error Cyclic redundancy check error. This is an error condition in which the
data failed a checksum test used to trap transmission errors. These
errors can indicate problems anywhere in the transmission path.
D
DA Destination address. The DA is the IP or MAC address of the device
that is to receive the packet.
DAD Duplicate Address Detection. IPv6 automatically uses this process to
ensure that no duplicate IP addresses exist.
C (Continued)