Index

trunks

U

allowed-VLAN list 13-21

 

configuring 13-20,13-25,13-27

UDLD

ISL 13-16

configuration guidelines 29-4

load sharing

default configuration 29-4

setting STP path costs 13-26

disabling

using STP port priorities 13-24,13-25

globally 29-5

native VLAN for untagged traffic 13-23

on fiber-optic interfaces 29-5

parallel 13-26

per interface 29-6

pruning-eligible list

13-22

 

echoing detection mechanism

29-3

to non-DTP device

13-17

 

enabling

 

 

 

 

 

 

 

trusted boundary for QoS

36-41

 

globally

29-5

 

 

 

 

 

trusted port states

 

 

 

per interface

29-6

 

 

 

between QoS domains 36-43

 

Layer 2 protocol tunneling

17-10

classification options

36-5

 

link-detection mechanism

 

29-1

 

ensuring port security for IP phones

36-41

neighbor database

29-2

 

 

 

support for

1-10

 

 

overview

29-1

 

 

 

 

 

within a QoS domain

36-38

 

resetting an interface

29-6

 

 

trustpoints, CA

9-42

 

 

status, displaying

29-7

 

 

 

tunneling

 

 

 

 

support for

 

1-7

 

 

 

 

 

defined

17-1

 

 

UDP, configuring

38-16

 

 

 

 

IEEE 802.1Q

17-1

 

 

unauthorized ports with IEEE 802.1x 10-7

Layer 2 protocol 17-8

 

unicast MAC address filtering

 

1-6

 

tunnel ports

 

 

 

 

and adding static addresses

7-26

described

11-4,17-2

 

 

and broadcast MAC addresses

7-25

IEEE 802.1Q, configuring 17-7

 

and CPU packets

7-25

 

 

 

incompatibilities with other features

17-6

and multicast addresses

7-25

 

twisted-pair Ethernet, detecting unidirectional links 29-1

and router MAC addresses

7-25

type of service

 

 

 

configuration guidelines

7-25

 

See ToS

 

 

 

 

described

7-25

 

 

 

 

 

 

 

 

 

 

unicast storm

26-1

 

 

 

 

 

 

 

 

 

 

unicast storm control command

26-4

 

 

 

 

 

unicast traffic, blocking

26-7

 

 

 

 

 

 

 

 

UniDirectional Link Detection protocol

 

 

 

 

 

See UDLD

 

 

 

 

 

 

 

 

 

Catalyst 3750-E and 3560-E Switch Software Configuration Guide

 

 

 

 

 

 

 

OL-9775-02

 

 

IN-53

 

 

 

 

 

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Image 1231
Cisco Systems 3750E manual Udld, IN-53