Wendell odom

superior Hello messages, 219
supplicants, 658
SVI (Switched Virtual Interfaces), 392, 
401-406
switch ports, 110
switches
access switches, 241
alternate ports, 229
auto-mdix, 45
backup ports, 230
BID, 218, 243-244
BPDU, 218, 225
Cisco Catalyst switches, 86
configuration files, 99-102
DHCP, 143
distribution switches, 241
EtherChannels, 234
Ethernet switches, 48
filtering decisions, 110-113
forwarding decisions, 110-113
history buffer commands, 144-145
interfaces, 87, 110, 118-120
autonegotiation, 158-162
description, 152-154
duplex, 152-154, 163-166
enabling/disabling interfaces, 
155-156
Layer 1 problems, 166-168
multiple interfaces, 154-155
overview, 152
removing configuration, 157-158
speed, 152-154, 163-166
status codes, 162-163
troubleshooting, 162-168
IPv4, 140-144
LAN segment DP, choosing, 222-223
9780135792735_book.indb 790
9780135792735_book.indb 790
7/25/19 2:46 PM
7/25/19 2:46 PM

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tables 791
LAN switches, 35
analyzing, 116
flooding, 114
interface configuration, 152-162
MAC address table, 113-114, 
117-124
overview, 106-109
STP, 114-115
summary, 115-116
switch forwarding and filtering 
decisions, 110-113
switch interfaces, 118-120, 
152-162
switching logic, 109-110
verifying, 116
Layer 2 switches, 141, 183
Layer 3 (multilayer) switches, 141, 
184, 401-414
links, 233
MAC address tables, 111, 214-215
management
DHCP, 143
history buffer commands, 
144-145
IPv4, 140-144
overview, 126
security, 128-139
multilayer switches, 184
PortFast, 235
ports, 87, 230-233
priority, 245-246
root costs, 216
root switches, 217-219, 247
RP, choosing, 220-221
RSTP switch priority, 247
security, 128-139
STP
reacting to changes, 226-227
topology influences, 223-225
system ID extensions, 245-246
unknown unicast frames, 114
VLAN configuration, 140
voice switches, 196