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IN-31
Catalyst 2960 Switch Software Configuration Guide
78-16881-01
UDLD (continued)
echoing detection mechanism
24-3
enabling
globally
24-5
per interface 24-5
link-detection mechanism 24-1
neighbor database 24-2
overview 24-1
resetting an interface 24-6
status, displaying 24-6
support for 1-5
unauthorized ports with IEEE 802.1x 9-4
unicast MAC address filtering 1-4
and adding static addresses 6-24
and broadcast MAC addresses 6-24
and CPU packets 6-24
and multicast addresses 6-24
and router MAC addresses 6-24
configuration guidelines 6-24
described 6-24
unicast storm 21-1
unicast storm control command 21-4
unicast traffic, blocking 21-7
UniDirectional Link Detection protocol
See UDLD
UNIX syslog servers
daemon configuration
26-11
facilities supported 26-12
message logging configuration 26-11
unrecognized Type-Length-Value (TLV) support 13-4
upgrading a Catalyst 2950 switch
configuration compatibility issues
C-1
differences in configuration commands C-1
feature behavior incompatibilities C-5
incompatible command messages C-1
recommendations C-1
upgrading information
See release notes
upgrading software images
See downloading
UplinkFast
described
17-4
disabling 17-13
enabling 17-13
support for 1-5
uploading
configuration files
preparing
B-10, B-13, B-16
reasons for B-8
using FTP B-14
using RCP B-18
using TFTP B-11
image files
preparing
B-21, B-25, B-29
reasons for B-19
using FTP B-28
using RCP B-32
using TFTP B-24
user EXEC mode 2-2
username-based authentication 8-7
V
version-dependent transparent mode 13-4
vlan.dat file 12-4
VLAN 1, disabling on a trunk port 12-18
VLAN 1 minimization 12-18
vlan-assignment response, VMPS 12-24
VLAN configuration
at bootup
12-7
saving 12-7
VLAN configuration mode 2-2, 12-6
VLAN database
and startup configuration file
12-7
and VTP 13-1
VLAN configuration saved in 12-6
VLANs saved in 12-4