Specifications

Index
IN-27
Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
78-11380-07
troubleshooting (continued)
with CiscoWorks
25-4
with debug commands 29-14
with ping 29-11
with system message logging 24-1
trunk ports
configuring
15-18
defined 11-2
trunks
allowed-VLAN list
15-19
load sharing
setting STP path costs
15-23
using STP port priorities 15-22
native VLAN for untagged traffic 15-21
parallel 15-23
pruning-eligible list 15-20
to non-DTP device 15-15
understanding 15-15
trusted boundary 27-20
twisted-pair Ethernet, detecting unidirectional links 20-1
type-of-service
See TOS
U
UDLD
default configuration
20-3
echoing detection mechanism 20-2
enabling
globally
20-4
per interface 20-4
link-detection mechanism 20-1
neighbor database 20-2
overview 20-1
resetting an interface 20-5
status, displaying 20-6
unauthorized ports with 802.1X 10-4
UniDirectional Link Detection protocol
See UDLD
UNIX syslog servers
daemon configuration
24-11
facilities supported 24-12
message logging configuration 24-11
unrecognized Type-Length-Value (TLV) support 16-4
upgrading software, VLAN considerations 16-8
UplinkFast
described
14-4
enabling 14-17
support for 1-4
user EXEC mode 2-2
username-based authentication 9-6
V
version-dependent transparent mode 16-4
virtual IP address
cluster standby group
7-14, 7-24
command switch 7-14, 7-24
See also IP addresses
vlan.dat file
15-4
VLAN configuration
at bootup
15-7
saving 15-7
VLAN configuration mode 2-2, 15-6
VLAN database
and startup configuration file
15-7
and VTP 16-1
VLAN configuration saved in 15-7
VLANs saved in 15-4
vlan database command 15-6
vlan global configuration command 15-6
VLAN ID, discovering 8-27
VLAN management domain 16-2
VLAN Management Policy Server
See VMPS