Key Terms
This chapter uses the following key terms. You can find the definitions in the Glossary.
topology Page 5
physical topology Page 5
logical topology Page 5
speed Page 5
availability Page 5
scalability Page 5
reliability Page 6
mean time between failures (MTBF) Page 6
routing table Page 7
IOS Page 7
volatile Page 7
nonvolatile Page 7
RAM Page 8
ROM Page 8
NVRAM Page 8
flash Page 8
Point-to-Point Protocol (PPP) Page 10
static routes Page 11
dynamic routing protocols Page 11
process switching Page 11
fast switching Page 12
fast-switching cache Page 12
Cisco Express Forwarding (CEF) Page 12
Forwarding Information Base (FIB) Page 12
adjacency table Page 12
VoIP Page 15
wireless access points (WAP) Page 15
Gateway of Last Resort Page 17
USB-to-RS-232 compatible serial port adapter Page 21
USB Type-A to USB Type-B (mini-B USB) Page 21
switched virtual interface (SVI) Page 22
High-Speed WAN Interface Card (HWIC) slots Page 24
IPv6 link-local address Page 26
IPv6 global unicast address Page 26
EUI-64 Page 27
loopback interface Page 29
PPP Page 39
ICMPv6 Neighbor Solicitation and Neighbor Advertisement messages Page 40
neighbor cache Page 40
metric Page 45
equal cost load balancing Page 46
unequal cost load balancing Page 47
administrative distance (AD) Page 47
directly connected routes Page 49
remote routes Page 49
local route interfaces Page 50
directly connected interfaces Page 50
default static route Page 58