Extreme Networks ExtremeWare XOS Guide Manual page 648

Glossary
C (Continued)
CLEAR-Flow
CLI
cluster
CNA
combo port
common link
controller node
control VLAN
CRC
CRC error
D
DA
DAD
ExtremeWare XOS 11.3 Concepts Guide
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.
Command line interface. You use the CLI to monitor and manage the
switch.
In BGP, a cluster is formed within an AS by a route reflector and its
client routers.
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.
Combination port. On some Extreme Networks devices (such as the
Summit X450 switch), certain ports can be used as either copper or
fiber ports.
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.
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.
In EAPS, the control VLAN is a VLAN that sends and receives EAPS
messages. You must configure one control VLAN for each EAPS
domain.
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.
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.
Destination address. The DA is the IP or MAC address of the device
that is to receive the packet.
Duplicate Address Detection. IPv6 automatically uses this process to
ensure that no duplicate IP addresses exist.
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