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Cards in this set:Term
Broadcast DomainDefinition
A set of all devices that receive broadcast fra
originating from any device within the se
Devices in the same VLAN are in the sambroadcast domain.
TermBroadcast Frame
DefinitionAn Ethernet frame sent to destination addr
FFFF.FFFF.FFFF, meaning that the fram
should be delivered to all hosts on that LA
TermCollision Domain
DefinitionA set of network interface cards (NICs) for
a frame sent by one NIC could result in a coll
with a frame sent by any other NIC in the scollision domain.
TermCut-Through Switching
DefinitionOne of three options for internal processing
some models of Cisco LAN switches in whic
frame is forwarded as soon as possible, inclu
forwarding the first bits of the frame before
whole frame is received.Term
FloodingDefinitionThe result of the LAN switch forwarding pr
for broadcasts and unknown unicast fram
Switches forward these frames out all interf
except the interface in which the frame arri
Switches also forward multicasts by defau
although this behavior can be changed.Term
Fragment-Free SwitchingDefinition
One of three internal processing options on s
Cisco LAN switches in which the first bits o
frame may be forwarded before the entire fris received, but not
until the first 64 bytes o
frame are received, in which case, in a wel
designed LAN, collision fragments should
occur as a result of this forwarding logic.Term
MicrosegmentationDefinitionThe process in LAN design by which
every s
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port connects to a single device, with no hubs
connected to the switch ports, creating a separate
collision domain per interface. The terms origin
relates to the fact that one definition for the word
segment is collision domain, with a switch
separating each switch port into a separatecollision domain or
segment.
TermSTP (acronym)
DefinitionSpanning Tree Protocol
TermSpanning Tree Protocol
DefinitionA bridge protocol that uses the Spanning T
algorithm, allowing a switch to dynamically
around loops in a network topology by creati
spanning tree. Switches exchange bridge pro
data unit (BPDU) messages with other bridg
detect loops and then remove the loops b
shutting down selected bridge interfaces.Term
Store-and-Forward SwitchingDefinition
One of three internal processing options on s
Cisco LAN switches in which the Ethernet fr
must be completely received before the switc
begin forwarding the first bit of the fram Term
Unknown Unicast Frame Definition
An Ethernet frame whose destination MA
address is not listed in a switchs MAC add
table, so the switch must flood the frame.Term
VLAN (acronym)Definition
Virtual LANTerm
Virtual LANDefinition
A group of devices, connected to one or m
switches, with the devices grouped into a si
broadcast domain through switch configuraVLANs allow switch
administrators to sepa
the devices connected to the switches int
separate VLANs without requiring separa
physical switches, gaining design advantage
separating the traffic without the expense
buying additional hardware.
