Specifications

Index
IN-29
Catalyst 2970 Switch Software Configuration Guide
78-15462-03
traffic
blocking flooded
19-6
fragmented 26-4
unfragmented 26-4
traffic policing 1-7
traffic suppression 19-2
transparent mode, VTP 12-3, 12-11
trap-door mechanism 4-2
traps
configuring MAC address notification
6-24
configuring managers 25-11
defined 25-3
enabling 6-24, 25-11
notification types 25-11
overview 25-1, 25-5
troubleshooting
connectivity problems
29-13, 29-14, 29-16
detecting unidirectional links 21-1
determining packet forwarding 29-19
displaying crash information 29-21
SFP security and identification 29-12
show forward command 29-19
with CiscoWorks 25-5
with debug commands 29-17
with ping 29-13
with system message logging 24-1
with traceroute 29-16
trunking encapsulation 1-5
trunk ports
configuring
11-19
defined 9-3, 11-3
encapsulation 11-19, 11-23, 11-25
secure MAC addresses on 19-11
trunks
allowed-VLAN list
11-20
configuring 11-19, 11-23, 11-25
ISL 11-15
load sharing
setting STP path costs
11-24
using STP port priorities 11-22, 11-23
native VLAN for untagged traffic 11-21
parallel 11-24
pruning-eligible list 11-21
to non-DTP device 11-16
understanding 11-15
trusted boundary for QoS 27-34
trusted port states
between QoS domains
27-35
classification options 27-5
ensuring port security for IP phones 27-34
support for 1-6
within a QoS domain 27-31
twisted-pair Ethernet, detecting unidirectional links 21-1
type of service
See TOS
U
UDLD
default configuration
21-4
echoing detection mechanism 21-3
enabling
globally
21-5
per interface 21-5
link-detection mechanism 21-1
neighbor database 21-2
overview 21-1
resetting an interface 21-6
status, displaying 21-6
support for 1-4
unauthorized ports with 802.1X 8-4
unicast MAC address filtering 1-4
and adding static addresses 6-28