All Cisco-Network Study Notes: Ethernet Anchorage Mode

Ethernet Anchorage Mode

Ethernet-based about-face ports can additionally be assigned a specific articulation mode. Therefore, the port

operates in half-duplex, full-duplex, or autonegotiated mode. Autonegotiation is alone allowed

on Fast Ethernet and Gigabit Ethernet ports. In this mode, full-duplex operation will be

attempted first, and again bisected bifold if abounding bifold was not successful. The autonegotiation

process repeats whenever the articulation cachet changes.

NOTE A 10-Mbps Ethernet articulation defaults to bisected duplex, while a 100-Mbps Fast Ethernet articulation defaults

to abounding duplex.

Assigning the Ethernet Articulation Approach on an IOS-Based Switch

To set the articulation approach on an IOS-based about-face port, admission the afterward command in interface

configuration mode:

Switch(config-if)# bifold {auto | abounding | half}

If the anchorage is not automatically enabled or activated, use the no abeyance interface

configuration command. To appearance the accepted acceleration and bifold accompaniment of a port, use the show

interface command.

Assigning the Ethernet Articulation Approach on a CLI-Based Switch

To set the articulation approach on a CLI-based about-face port, admission the afterward command:

Switch(enable) set anchorage bifold module/number {full | half}

88 Affiliate 3: Basic About-face and Anchorage Configuration

If the anchorage is not automatically enabled or activated, use the set anchorage accredit command. To view

the accepted acceleration and bifold cachet of a port, use the appearance anchorage command.

Token Arena Anchorage Mode

Token Arena ports accept bristles modes of operation:

• Half-duplex concentrator anchorage (hdxcport)—The anchorage is affiliated to a distinct base in

half-duplex mode, agnate to a MAU connection.

• Half-duplex base appetite (hdxstation)—The anchorage is affiliated to a media

attachment assemblage (MAU) port, like a approved station.

• Full-duplex concentrator anchorage (fdxcport)—The anchorage is affiliated to a full-duplex

station.

• Full-duplex base appetite (fdxstation)—The anchorage is affiliated to addition fullduplex

Token Ring.

• Autosensing (auto)—The anchorage will autosense the operating approach of the affiliated device

or ring.

Assigning the Token Arena Articulation Approach on a CLI-Based Switch

To set the Token Arena articulation approach on a CLI-based about-face port, admission the afterward command:

Switch(enable) set tokenring portmode module/number {auto | fdxcport | hdxcport |

fdxstation | hdxstation}

Foundation Arbitrary 89

Foundation Summary

The Foundation Arbitrary is a accumulating of tables and abstracts that provides a acceptable review

of abounding key concepts in this chapter. For those of you already adequate with the capacity in

this chapter, this arbitrary could advice you anamnesis a few details. For those of you who aloof read

this chapter, this analysis should advice coalesce some key facts. For any of you accomplishing your final

prep afore the exam, the afterward tables and abstracts will hopefully be a acceptable way to

review the day afore the exam.

Table 3-6 Cabling Specifications for Fast Ethernet

Technology Wiring Blazon Pairs Cable Length

100BaseTX EIA/TIA Category 5 UTP 2 100 m

100BaseT2 EIA/TIA Category 3,4,5 UTP 2 100 m

100BaseT4 EIA/TIA Category 3,4,5 UTP 4 100 m

100BaseFX Multimode cilia (MMF)

62.5 micron core, 125 micron outer

cladding (62.5/125)

1 400 m bisected duplex

2000 m abounding duplex

Single-mode cilia (SMF) 1 10 km

Table 3-7 Autonegotiation Selection Priorities

Priority Ethernet Mode

7 100BaseT2 (full duplex)

6 100BaseT2 (half duplex)

5 100BaseTX (full duplex)

4 100BaseT4

3 100BaseTX

2 10BaseT (full duplex)

1 10BaseT

90 Affiliate 3: Basic About-face and Anchorage Configuration

Table 3-8 Gigabit Ethernet Cabling and Distance Limitations

GE Blazon Wiring Blazon Pairs Cable Length

1000BaseCX Shielded twisted-pair (STP) 1 25 m

1000BaseT EIA/TIA Category 5 UTP 4 100 m

1000BaseSX MMF with 62.5 micron core; 850 nm laser 1 275 m

MMF with 50 micron core; 1300 nm laser 1 550 m

1000BaseLX/LH MMF with 62.5 micron core; 1300 nm laser 1 550 m

SMF with 50 micron core; 1300 nm laser 1 550 m

SMF with 9 micron core; 1300 nm laser 1 10 km

1000BaseZX SMF with 9 micron core; 1550 nm laser 1 70 km

SMF with 8 micron core; 1550 nm laser 1 100 km

Table 3-9 Token Arena Analysis Methods

Method

Forwarding

Decision

Frame

Modification Arena Numbering

Transparent bridging MAC abode N/A

Source-route bridging RIF RIF Arena numbers charge be

unique amid arch ports

Source-route cellophane MAC address

or RIF

RIF Arena numbers charge be

unique amid arch ports

Source-route switching Avenue descriptor Arena numbers can be

same beyond about-face ports

(single arena can be segmented

on several ports)

Foundation Arbitrary 91

Table 3-10 About-face Administration Agreement Commands

Task IOS-Based Command CLI-Based Command

Identify About-face hostname hostname set arrangement name name-string

Set EXEC level

password

enable countersign akin 1 countersign set password

Set advantaged level

password

enable countersign akin 15 countersign set enablepass

Set IP abode interface vlan 1

ip abode ip-address netmask

ip default-gateway ip-address

set interface sc0 ip-address

netmask broadcast-address

set interface sc0 vlan

set ip avenue absence gateway

CDP cdp enable

show cdp interface

[type module/port]

show cdp neighbors

[type module/port] [detail]

set cdp {enable | disable}

module/port

show cdp neighbors [module/port]

[vlan | bifold | capabilities | detail]

Enable array array accredit cluster-name N/A

Table 3-11 About-face Anchorage Agreement Commands

Task IOS-Based Command CLI-Based Command

Identify anchorage description description-string set anchorage name module/number

description-string

Set anchorage acceleration (Ethernet) acceleration {10 | 100 | auto} set anchorage acceleration module/number

{10 | 100 | auto}

Set anchorage acceleration (Token Ring) N/A set anchorage acceleration module/number

{4 | 16 | auto}

Set anchorage approach (Ethernet) bifold {auto | abounding | half} set anchorage bifold module/number

{full | half}

Set anchorage approach (Token Ring) N/A set tokenring portmode

module/number {auto | fdxcport |

hdxcport | fdxstation | hdxstation}

92 Affiliate 3: Basic About-face and Anchorage Configuration

Q&A

The questions and scenarios in this book are added difficult than what you should acquaintance on

the absolute exam. The questions do not attack to awning added across or abyss than the exam;

however, they are advised to accomplish abiding that you apperceive the answer. Rather than acceptance you

to acquire the acknowledgment from clues hidden central the catechism itself, the questions claiming your

understanding and anamnesis of the subject. Questions from the “Do I Apperceive This Already?” quiz

from the alpha of the affiliate are again actuality to ensure that you accept baffled the

chapter’s affair areas. Hopefully, these questions will advice absolute the cardinal of assay questions

on which you attenuated your choices to two options and again guess.

The answers to these questions can be begin in Appendix A, on folio 477.

1 What are the altered Ethernet technologies and their associated IEEE standards?

______________________________________________________________________

2 What allowances aftereffect with switched Ethernet over aggregate Ethernet?

______________________________________________________________________

3 When a 10/100 Ethernet articulation is autonegotiating, which will be called if both stations can

support the aforementioned capabilities—10BaseT abounding duplex, 100BaseTX bisected duplex, or

100BaseTX abounding duplex?

______________________________________________________________________

4 At what band are acceptable 10-Mbps Ethernet, Fast Ethernet, and Gigabit Ethernet

different?

______________________________________________________________________

Q&A 93

5 Describe Cisco’s EtherChannel technology.

_______________________________________________________________________

6 A about-face anchorage is actuality configured as apparent below. What command is bare abutting to set

the anchorage to full-duplex mode?

Switch(config)# interface FastEthernet 0/13

Switch(config-if)#

_______________________________________________________________________

7 In a campus network, area is Fast Ethernet about used? Area is Gigabit Ethernet

typically used?

_______________________________________________________________________

8 What is the best breadth of a Category 5 100BaseTX cable?

_______________________________________________________________________

9 A CLI-based about-face anchorage has been configured for 100 Mbps full-duplex mode, but a link

cannot be established. What are some commands that could be acclimated to investigate and

correct the problem?

_______________________________________________________________________

10 Name a blazon of Token Arena segmentation.

_______________________________________________________________________

94 Affiliate 3: Basic About-face and Anchorage Configuration

11 What allotment of a Token Arena anatomy specifies the exact aisle the anatomy should booty to reach

its destination?

______________________________________________________________________

12 What about-face command will set the enable-mode countersign on an IOS-based switch? A

CLI-based switch?

______________________________________________________________________

13 What is the purpose of a GBIC?

______________________________________________________________________

14 What CLI-based commands will acquiesce Telnet and ping admission to a about-face management

interface at 192.168.200.10, subnet affectation 255.255.255.0, on VLAN 5? Now add a

command to acquiesce admission amid the about-face and accessories amid off the bounded VLAN 5

subnet, application a router at 192.168.200.1.

______________________________________________________________________

15 What charge be done to a about-face afore Telnet admission is allowed?

______________________________________________________________________

16 What factors actuate the best of a administration band switch, its access-to-distribution

layer articulation media, and its Band 3 processor?

______________________________________________________________________

Q&A 95

17 What blazon of user interface or command set does the Catalyst 5000 ancestors of switches

support? What blazon is the Catalyst 3500XL?

_______________________________________________________________________

18 What agreement is acclimated by a Catalyst about-face to apprentice about adjoining routers and

switches?

_______________________________________________________________________

19 What about-face command can be acclimated to acquisition the IP addresses of adjacent Cisco switches on

a network?

_______________________________________________________________________

20 What anchorage speeds can be assigned to a Fast Ethernet about-face port?

_______________________________________________________________________

21 What is the purpose of about-face clustering? Can amassed switches allotment switching loads

with anniversary other?

_______________________________________________________________________

22 What anchorage speeds can be assigned to a Token Arena about-face port?

_______________________________________________________________________

This affiliate covers the afterward capacity that you will charge to adept for the CCNP

Switching exam:

• Basic LANs—This area provides a analysis of basic LANs (VLANs), how

VLAN associates is established, and the agreement of VLANs on a Catalyst

switch.

• VLAN Trunks—This area covers methods for alteration assorted VLANs over

single links, with a focus on VLAN trunking with Ethernet.

• VLAN Trunk Configuration—This area outlines the Catalyst about-face commands

used to configure VLAN trunks.

• VLAN Trunking Protocol—This area presents Cisco’s VLAN Trunking Protocol

(VTP) for VLAN administration in a campus network.

• VTP Configuration—This area covers the Catalyst about-face commands acclimated to

configure VTP.

• VTP Pruning—This area capacity cartage administration by pruning aural VTP

domains, forth with the commands bare for configuration.