Cisco Catalyst 2950 - Page 684

Index
IN-14
Catalyst 2950 and Catalyst 2955 Switch Command Reference
78-11381-12
preventing from becoming designated 2-452
restricting which can be root 2-452
root guard 2-452
UplinkFast 2-481
root switch
affects of extended system ID
2-450, 2-484
hello-time 2-483
interval between BDPU messages 2-483
interval between hello BPDU messages 2-483
max-age 2-483
port priority for selection of 2-473
primary or secondary 2-483
switch priority 2-483
state changes
blocking to forwarding state
2-477
enabling BPDU filtering 2-442, 2-475
enabling BPDU guard 2-444, 2-475
enabling Port Fast 2-475, 2-477
enabling timer to recover from error state 2-113
forward-delay time 2-483
length of listening and learning states 2-483
shutting down Port Fast-enabled ports 2-475
state information display 2-403
VLAN options 2-470, 2-483
Switched Port Analyzer
See SPAN
switching characteristics
modifying
2-500
returning to interfaces 2-500
switchport access command 2-492
switchport block command 2-494
switchport host command 2-496
switchport mode command 2-498
switchport nonegotiate command 2-500
switchport port-security aging command 2-506
switchport port-security command 2-502
switchport priority extend command 2-508
switchport protected command 2-510
switchports, displaying 2-337
switchport trunk command 2-511
switchport voice vlan command 2-514
syslog command A-6
system mtu command 2-516
T
tar files, creating, listing, and extracting 2-12
Telnet, using with cluster switches 2-257
temperature alarms, setting A-4
test relay command A-21
traceroute, Layer 2
See Layer 2 traceroute
traceroute mac command
2-519
traceroute mac ip command 2-522
trunk ports, configuring 2-498
trunks
allowed VLANs
2-511
native VLANs 2-511
pruning-eligible VLAN list 2-513
pruning VLANs 2-511
VLAN 1 minimization 2-512
trunks, to non-DTP device 2-499
trusted boundary for QoS 2-218
type command B-24
U
UDLD
aggressive mode
2-524, 2-526
debug messages, displaying C-28
enabling globally 2-524
enabling per interface 2-526
error recovery timer 2-113
message timer 2-524
normal mode 2-524, 2-526
resetting shutdown interfaces 2-528
status 2-412