STP (continued)
disabling 226
displaying status 238
EtherChannel guard 297, 310
described 297
enabling 310
extended system ID 211, 214, 227, 229
effects on root device 227
effects on the secondary root device 229
overview 214
unexpected behavior 211
IEEE 802.1D and bridge ID 214
IEEE 802.1D and multicast addresses 220
IEEE 802.1t and VLAN identifier 214
instances supported 221
interface states 216, 217, 218
blocking 217
disabled 218
forwarding 217, 218
learning 218
listening 218
interoperability and compatibility among modes 222, 242
keepalive messages 212
limitations with IEEE 802.1Q trunks 222
modes supported 221
overview 212
protocols supported 221
redundant connectivity 219
root 211, 213
election 213
switch 211, 213
unexpected behavior 211
root device 214, 215, 227
configuring 215
effects of extended system ID 214, 227
root port, defined 213
stack changes, effects of 223
status, displaying 238
UplinkFast 290, 307, 308
described 290
disabling 308
enabling 307
VLAN-bridge 222
STP path cost 2145
STP port priorities 2141
stratum, NTP 1526
subnet mask 673
Subnetwork Access Protocol (SNAP) 431
suggested network environments 903
summer time 1533
supported features 52, 186
supported watts per port 18, 86
SVIs 1169
and router ACLs 1169
Switch Access 771
displaying 771
switch as trusted third party 980
switch stack 1646
switch stack consideration 732
switch stacks 173, 2089
switched packets, ACLs on 1262
switchport backup interface 390
system 77
system capabilities TLV 57
system clock 1523, 1531, 1532, 1533
configuring 1531, 1532, 1533
daylight saving time 1533
manually 1531
summer time 1533
time zones 1532
overview 1523
system description TLV 57
system name 1528, 1537
default configuration 1528
manual configuration 1537
system name TLV 57
system priority 350
system prompt, default setting 1528
T
TACACS+ 777, 779, 780, 816, 880, 883, 885, 888, 889, 895
accounting, defined 777
authentication, defined 777
authorization 883
authorization, defined 777
AV pairs 780, 816
accounting 816
configuring 880, 883, 885, 888, 889
accounting 889
authentication 883
authentication key 883
authorization 888
DNIS, server group selection 880
login authentication 885
server groups 880
DNIS selection 880
default configuration 883
defined 777
displaying 895
identifying the server 883
key 883
limiting the services to the user 888
login 885
operation of 779
overview 777
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)
IN-19
Index
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