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IN-9
Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
OL-10101-02
DHCP snooping (continued)
option 82 data insertion 19-3
trusted interface 19-2
untrusted interface 19-2
untrusted messages 19-2
DHCP snooping binding database
described 19-2
displaying 19-8
entries 19-2
DHCP snooping binding table
See DHCP snooping binding database
Differentiated Services architecture, QoS 29-2
Differentiated Services Code Point 29-3
digital telephone networks 1-8
directories
changing B-3
creating and removing B-4
displaying the working B-3
discovery, clusters
See automatic discovery
DNS
and DHCP-based autoconfiguration 4-7
default configuration 7-16
displaying the configuration 7-17
overview 7-15
setting up 7-16
domain names
DNS 7-15
VTP 17-8
Domain Name System
See DNS
downloading
configuration files
preparing B-10, B-12, B-15
reasons for B-7
using FTP B-12
using RCP B-16
using TFTP B-10
downloading (continued)
image files
deleting old image B-22
preparing B-20, B-23, B-27
reasons for B-18
using FTP B-24
using HTTP 1-3
using Network Assistant 1-3
using RCP B-28
using TFTP B-21
DSCP 1-7, 29-3
DSCP-to-CoS map for QoS 29-33
DTP 1-6, 16-14
duplex mode
configuring 10-10
configuring, LRE 12-11
CPE Ethernet link 12-11
dynamic access ports
characteristics 16-3
configuring 16-26
defined 10-2
dynamic addresses
See addresses
dynamic desirable trunking mode 16-15
dynamic port VLAN membership
described 16-24
reconfirming 16-27
troubleshooting 16-29
types of connections 16-26
VMPS database configuration file 16-24
Dynamic Trunking Protocol
See DTP
E
editing features
enabling and disabling 2-6
keystrokes used 2-7
wrapped lines 2-8