5-44
User
Guide

for

the

Cisco

Application

Networking

Manager

5.2
OL-26572-01
Chapter
5






Importing

and

Managing

Devices
Configuring
Devices

•
Configuring
Routed

Ports,

page
5-46

•
Managing
Catalyst

6500

Series

Chassis

or

Cisco

7600

Series

Router

VLANs,

page
5-48
Configuring
Trunk

Ports
You
can

configure

trunk

ports

for


a

selected

device.

A

t

runk

port

carries

t

he

traffic

of


multiple

VLANs
and
by

default

is

a

member

of

all

VLANs

in

the

VLAN

database.

Two

types

of

trunk

ports

are

as

follows:

•
In
an
Inter-Switch

Link

(ISL)

trunk

port,

all

received
packets
are

expected
to

be

encapsulated

with
an
ISL

header,

and

all

transmitted

packets

are

sent

with

an

ISL

header.

Native

(nontagged)

frames
received
from

an

ISL

trunk

port

are

dropped.

•
An
IEEE

802.1Q

t

runk

por

t

supports
simultaneous
tagged
and

untagged

traffic.

An

802.1Q

trunk
port
is

assigned

a

default

port

VLAN

ID

or

native

VLAN,

and

al

l

untagged

traffic

travels

on

t

he
native
VLAN.

All

untagged

traffic

and

tagged

traffic

with

a

NULL

VLAN

ID

are

assumed

to

belong
to
the

native

VLAN.

A

packet

with

a

VLAN

ID

that

is

equal

to

the

outgoing

port

native

VLAN

is
sent
untagged.

All

ot

her

t

raffic

is

sent

with

a

VLAN

tag.
Procedure
Step
1
Choose
Config
>

Devices

>

All

Devices.
The
device

tr

ee

ap

pears.
Step
2
In
the

device

tree,

choose

the
device
that
you

want

to
configure,
and

choose
Interfaces

>

Trunk

Ports.
The
Interfaces

table

appears.
Step
3
In
the

Interfaces

table,

choose

the

port

that

you

want

to
configure,
and

click
Edit.
The
Trunk

Port

configuration

window

appears.
Step
4
Configure
the

port

using
the
information

in
Ta
b

l

e
5-17
.
Ta
b

l

e


5-17
Trunk
Port

Configuration

Attributes
Field
Description
Description
Description
for

the

port.

Valid

entries

are

unquoted

text

strings

with

a

maximum

of

240

characters
including
spaces.
Administrative
State
Up
or

Down

to

indicate

whether

the

port

should

be

up

or

down.
Speed
Speed
at

which

the

interface

is

to

operate

or

that

the

interface

is

to

automatically

negotiate

its

speed:

•
Au
t

o

—The

interface

is

to

automatically

negotiate

speed

with

the

connected
device.

•
10
Mbps—The
interface
is

to

operate

at

10

Mbps.

•
100
Mbps—The

interface

is
to
operate

at

100

Mbps.

•
1000
Mbps—The

interface

is
to
operate

at

1000

Mbps.
Duplex
Mode
Whether
the

interface

is

to

automatically

negotiate

its

duplex

mode

or

use

full-duplex

or

half-duplex
mode:

•
Au
t

o

—The

interface

is

to

automatically

negotiate

duplex

mode
with
the

connected

device.

•
Full—The
interface

is
to
operate

in
full-duplex

mode.

In

this

mode,

two

connected

devices

can
send
and

receive

traffic

at

the

same

time.

•
Half—The
interface

is

to
operate

in
half-duplex
mode.

In

this
mode,
two
connected

devices

can
either
send

or

re

ceive

t

raffic.