Key Terms
This chapter uses the following key terms. You can find the definitions in the Glossary.
mission-critical services
enterprise network
network operations center (NOC)
hierarchical design model
access layer
distribution layer
core layer
collapsed core design
multilayer switch
Redundant links
link aggregation
redundancy
Spanning Tree Protocol (STP)
failure domain
wireless access point (AP)
building switch block
departmental switch block
EtherChannel
port channel interface
load balancing
Open Shortest Path First (OSPF)
Enhanced Interior Gateway Routing Protocol (EIGRP)
link-state routing protocol
single-area OSPF
multiarea OSPF
distance vector routing protocol
form factor
Power over Ethernet (PoE)
campus LAN switch
cloud-managed switch
data center switch
service provider switch
virtual networking switch
fixed configuration
modular configuration
stackable configuration
rack unit
supervisor engine
port density
small form-factor pluggable (SFP)
forwarding rates
wire speed
application-specific integrated circuits (ASIC)
branch router
network edge router
service provider router
Cisco Internetwork Operating System (IOS)
IOS image
out-of-band management
in-band management
PuTTY
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