Index
IN-34
Cisco IE 3000 Switch Software Configuration Guide
OL-13018-01
traceroute, Layer 2 (continued)
multicast traffic 34-11
multiple devices on a port 34-11
unicast traffic 34-10
usage guidelines 34-10
traceroute command 34-12
See also IP traceroute
traffic
blocking flooded 22-8
fragmented 30-3
unfragmented 30-3
traffic policing 1-9
traffic suppression 22-1
transmit hold-count
see STP
transparent mode, VTP 14-3, 14-12
trap-door mechanism 4-2
traps
configuring MAC address notification 7-21
configuring managers 29-11
defined 29-3
enabling 7-21, 29-11
notification types 29-11
overview 29-1, 29-4
troubleshooting
connectivity problems 34-8, 34-10, 34-11
detecting unidirectional links 25-1
displaying crash information 34-17
setting packet forwarding 34-15
SFP security and identification 34-8
show forward command 34-15
with CiscoWorks 29-4
with debug commands 34-14
with ping 34-9
with system message logging 28-1
with traceroute 34-11
trunk failover
See link-state tracking
trunking encapsulation 1-7
trunk ports
configuring 13-17
defined 11-3, 13-3
trunks
allowed-VLAN list 13-18
load sharing
setting STP path costs 13-22
using STP port priorities 13-20, 13-21
native VLAN for untagged traffic 13-19
parallel 13-22
pruning-eligible list 13-19
to non-DTP device 13-14
trusted boundary for QoS 32-34
trusted port states
between QoS domains 32-36
classification options 32-4
ensuring port security for IP phones 32-34
support for 1-9
within a QoS domain 32-32
trustpoints, CA 9-38
twisted-pair Ethernet, detecting unidirectional links 25-1
type of service
See ToS
U
UDLD
configuration guidelines 25-4
default configuration 25-4
disabling
globally 25-5
on fiber-optic interfaces 25-5
per interface 25-5
echoing detection mechanism 25-3
enabling
globally 25-5
per interface 25-5
link-detection mechanism 25-1
neighbor database 25-2