Cisco WS-C2960-24LC-S - Page 726

Index
IN-32
Catalyst 2960 Switch Software Configuration Guide
OL-8603-04
traffic suppression 19-1
transmit hold-count
see STP
transparent mode, VTP
13-3, 13-12
trap-door mechanism 3-2
traps
configuring MAC address notification
6-22
configuring managers 26-12
defined 26-3
enabling 6-22, 26-12
notification types 26-12
overview 26-1, 26-5
troubleshooting
connectivity problems
32-12, 32-14, 32-15
detecting unidirectional links 22-1
displaying crash information 32-21
setting packet forwarding 32-20
SFP security and identification 32-12
show forward command 32-20
with CiscoWorks 26-4
with debug commands 32-18
with ping 32-13
with system message logging 25-1
with traceroute 32-15
trunk failover
See link-state tracking
trunking encapsulation
1-7
trunk ports
configuring
12-17
defined 10-3, 12-3
trunks
allowed-VLAN list
12-18
load sharing
setting STP path costs
12-22
using STP port priorities 12-20, 12-21
native VLAN for untagged traffic 12-19
parallel 12-22
pruning-eligible list 12-19
to non-DTP device 12-14
trusted boundary for QoS 28-36
trusted port states
between QoS domains
28-38
classification options 28-5
ensuring port security for IP phones 28-36
support for 1-9
within a QoS domain 28-34
trustpoints, CA 8-38
twisted-pair Ethernet, detecting unidirectional links 22-1
type of service
See ToS
U
UDLD
configuration guidelines
22-4
default configuration 22-4
disabling
globally
22-5
on fiber-optic interfaces 22-5
per interface 22-5
echoing detection mechanism 22-2
enabling
globally
22-5
per interface 22-5
link-detection mechanism 22-1
neighbor database 22-2
overview 22-1
resetting an interface 22-6
status, displaying 22-6
support for 1-6
unauthorized ports with IEEE 802.1x 9-7
unicast MAC address filtering 1-4
and adding static addresses 6-25
and broadcast MAC addresses 6-25
and CPU packets 6-25
and multicast addresses 6-25
and router MAC addresses 6-25