ab - Ex ploring Router Physic l Chara cteristi s opology
bjectives Part 1: E amine Rout er External
Identify the variou parts of a C isco router, i cluding: -
Management orts
-
L N interface
-
haracteristics
AN interfaces
-
Module expansion slots
-
Compact Flas memory ex ansion slots
-
USB ports
Exa ine the router activity and status lights.
Part 2: E amine Rout er Internal
haracteristi s Using Sh ow Comman ds
Establish a console connection to the router using Tera T erm.
Identify router inte nal characte istics using the show ver sion comma sion command.
Identify router inte face charact ristics using show interf ace comman ace commands.
ackgrou d / Scena io In this lab, you will examine the out ide of the ro ter to beco e familiar wi h its charact ristics and compone ts, such as its power switch, manage ent ports, L N and WAN interfaces, indicator lights, network expansio slots, mem ry expansio slots, and USB ports. You will also identify the internal co ponents and characteristics of the IO S by consoling into the ro ter and issuing v rious comm nds, such as show versi n and show interfaces, interfaces , from the CLI. Note: Note: Th routers use with CCNA hands-on labs are Cisco 1941 Integrated Services outers (ISR ) with Cisco IO Release 15.2(4)M3 (universalk9 image). Other rou ters and Cisco IOS versio s can be us d. Depending on the mo el and Cisco IOS version, the commands available and output p oduced might vary from wha is shown in he labs. Note: Note: Make sure that the routers have been era ed and have no startup c nfigurations.. If you are u sure, contact y ur instructor .
equired
esources
1 Ro ter (Cisco 1 41 with Cisc IOS Release 15.2(4)M3 universal im ge or comparable)
1 PC (Windows 7, Vista, or XP
ith terminal emulation pr ogram, such as Tera Ter )
Console cables to configure the Cisco IOS devices via th console po ts
2013 Cisco an /or its affiliates. All rights reserv reserved. This docume nt is Cisco Publiic.
Page 1 of 8
ab - Explor ing Router Physical Cha acteristics
art 1:
xamine
outer E ternal Character istics
Use the i ages below, as well as y ur own dire t inspection f the backpl ne of a Cisc router, to a swer the following questions. F el free to draw arrows an circle the ar eas of the image that corr ectly identify the parts. Note: Th router depi ted in the im ges below i a Cisco 194 1 router, whi h may be dif ferent from t e make and mod l of the routers in your pa ticular academy. You can find device i formation a d specificati ns for the Cisco 1941 series routers at the Cisco.com ebsite. Addi ional inform tion, including answers to many of the questions below c n be found here: http://ww .cisco.com/ n/US/prod/c llateral/routers/ps10538/ ata_sheet_c78_556319.html
tep 1:
Id ntify the v rious part of a Cisco router.
The image shown in this step is of the backplane of a Cisco 1 941 ISR. Us it to answer the questions in this step. In a dition, if you are examini g a different model router , a space ha been provided here for y ou to draw the ackplane and identify co ponents an interfaces as specified in the questions that follow.
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Page 2 of 8
Lab - Exploring Router Physical Characteristics a.
Circle and label the router’s power switch. Is the power switch on your router in the same area as the router depicted in the image?
b.
Circle and label the management ports. What are the built-in management ports? Are the management ports the same on your router? If not, how are they different?
c.
Circle and label the router’s LAN interfaces. How many LAN interfaces does the router in the image have and what is the interface technology type? Are the LAN interfaces the same on your router? If not, how are they different?
d.
Circle and label the router’s WAN interfaces. How many WAN interfaces does the router in the image have and what is the interface technology type? Are the WAN interfaces the same on your router? If not, how are they different?
e.
The Cisco 1941 ISR is a modular platform and comes with module expansion slots for varied network connectivity requirements. Circle and label the module slots. How many module slots are there? How many are used? What type of module expansion slots are they? Are the module slots the same on your router? If not, how are they different?
f.
The Cisco 1941 router comes with CompactFlash memory slots for high speed storage. Circle and label the CompactFlash memory slots. How many memory slots are there? How many are used? How much memory can they hold? Are the memory slots the same on your router? If not, how are they different?
g.
The Cisco 1941 router comes with USB 2.0 ports. The built-in USB ports support eToken devices and USB flash memory. The USB eToken device feature provides device authentication and secure configuration of Cisco routers. The USB flash feature provides optional secondary storage capability and an additional boot device. Circle and label the USB ports. How many USB ports are there? Are there USB ports on your router?
h.
The Cisco 1941 router also comes with a mini-B USB console port. Circle and label the mini-B USB console port.
Step 2:
Examine the router activity and status lights.
The following images highlight the activity and status lights of the front panel and backplane of a powered up and connected Cisco 1941 ISR. Note: Some of the indicator lights are obscured from view in the image of the backplane of the Cisco 1941 router below.
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Page 3 of 8
ab - Explor ing Router Physical Cha acteristics
a.
In the top image a ove, examine the indicat r lights on th e front panel of the router The lights are label d SYS, ACT, and POE. hat do the labels refer to What do th lights in the image indicate about the status of the router? These labels would be readable iif they were ot lit.
b.
In the backplane i age above, examine the indicator ligh s on the rout er. There are three visible activity lights, one for eac of the conn cted interfaces and management port . Examine th e interface li hts on your outer. How are the lights labeled, and hat is their eaning?
2013 Cisco an /or its affiliates. All rights reserv ed. This docume nt is Cisco Publiic.
Page 4 of 8
ab - Explor ing Router Physical Cha acteristics c.
Aside from the management ports and netw rk interfaces , what other iindicator lights are on the back lane of the r uter and wh t might their purpose be?
art 2: tep 1:
xamine
outer In ternal C aracteri stics Usi ng Show Commands
Establish a c nsole con ection to t he router a nd use the show versi on comma d.
a. Using Tera Term, console into the router an enter privile ged EXEC
Rout er > Rout er #
ode using th enable co mand:
enabl
b. Displ y informatio about the r uter by usin the show v rsion com and. Use the Spacebar o the keyb ard to page hrough the output.
Rout er #
show
ersion
Ci sc I OS Sof t war e, C1900 Sof t war e ( 1900- UNI VERSALK9- M) , Vers i on 15. 2( 4) M3, R LEASE SOFT ARE ( f c1) Tech i cal Suppor t : h t t p : / / www. ci sc o. om/ t echsuppor t Copyr i ght ( c ) 1986- 2011 by Ci sco Syst ems, I nc. Compi l ed Thu 26- J ul - 12 19: 34 by pr od r e l _ t e am ROM: Syst em Boo st r ap, Ver si on 15. 0( r ) M15, RELEASE SOFTW RE ( f c1) Rout Syst Syst Syst Last Last
r upt i me i s 1 day, 14 hour s, 46 mi nut es m r eturned t o ROM by power - on m r e s t a r t ed at 07: 26: 55 UTC Mon Dec 3 2012 m i mage f i e i s "f l as h0: c1900- u i versal k9- mz. SPA. 152- 4. M3. bi n" r el oad t ype: Nor mal el oad r el oad reason: power - on
I f y u r equi r e ur t her assi st ance pl ase cont act us by se di ng emai l t o expor t @ci sco. com. Ci sc CI SCO1941 K9 ( r evi si on 1. 0) wi t h 487424K/ 36864K byt s of memor y. Proc ssor boar d I D FGL16082318 2 Gi abi t Et her net i nt er f aces 2 Ser i al ( s ync / a sync) i nt er f aces 1 t er mi nal l i ne 1 Vi r t ual Pr i va e Net wor k ( VPN) Modu e DRAM conf i gur at i on i s 64 bi t s wi de wi t h par i t y di sabl ed. 255K byt es of non- vol at i l e conf i gur at i on memor y . 2508 0K byt es o ATA Syst em Compact Fl ash 0 ( Read/ Wr i t e) Tech ol ogy Pack age Li cense I nf ormat i n f or Modul e: ' c1900'
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Page 5 of 8
Lab - Exploring Router Physical Characteristics
---------------------------------------------------------------- Technol ogy Technol ogy- package Technol ogy- package Cur r ent Type Next r eboot -----------------------------------------------------------------i pbase secur i t y dat a
i pbasek9 secur i t yk9 None
Per manent Per manent None
i pbasek9 secur i t yk9 None
Conf i gur ati on r egi st er i s 0x2102
c.
Based on the output of the show version command, answer the following questions about the router. If you are examining a different model router, include the information about it here. 1) What is the version of the Cisco IOS and what is the system image filename?
2) What is the Bootstrap program version in ROM BIOS?
3) How long has the router been running without a restart (also known as its uptime)?
4) How much dynamic random-access memory (DRAM) memory does the router have?
5) What is the router’s processor board ID number?
6) What network interfaces does the router have?
7) How much CompactFlash memory for IOS storage is there?
8) How much nonvolatile random-access memory (NVRAM) memory for configuration file storage is there?
9) What is the setting of the configuration register?
Step 2: a.
Use the show int erface com mand to examine the netwo rk interfaces.
Use the show interface gigabitEthernet 0/0 command to see the status of the Gigabit Ethernet 0/0 interface. Note: After typing part of the command, for example, show i nterface g, you can use the Tab key on your keyboard to complete the gigabitEthernet command parameter.
Rout er # show interface gigabitEthernet 0/0 Gi gabi t Et her net 0/ 0 i s admi ni st r at i vel y down, l i ne pr ot ocol i s down Har dwar e i s CN Gi gabi t Et her net , address i s 442b. 031a. b9a0 ( bi a 442b. 031a. b9a0) MTU 1500 byt es, BW 100000 Kbi t / sec, DLY 100 usec, r el i abi l i t y 255/ 255, t xl oad 1/ 255, r xl oad 1/ 255
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Page 6 of 8
Lab - Exploring Router Physical Characteristics Encapsul at i on ARPA, l oopback not set Keepal i ve set ( 10 sec) Ful l Dupl ex, 100Mbps, medi a t ype i s RJ 45 out put f l ow- cont r ol i s unsuppor t ed, i nput f l ow- cont r ol i s unsuppor t ed ARP t ype: ARPA, ARP Ti meout 04: 00: 00 Last i nput never, out put never, out put hang never Last cl ear i ng of "show i nt erf ace" count ers never I nput queue: 0/ 75/ 0/ 0 ( si ze/ max/ dr ops/ f l ushes) ; Tot al out put dr ops: 0 Queuei ng str at egy: f i f o Out put queue: 0/ 40 ( si ze/ max) 5 mi nut e i nput r ate 0 bi t s/ sec, 0 packet s/ sec 5 mi nut e out put r at e 0 bi t s/ sec, 0 packet s/ sec 3 packet s i nput , 276 byt es, 0 no buf f er Recei ved 0 br oadcast s ( 0 I P mul t i cast s) 0 r unt s, 0 gi ant s, 0 t hr ot t l es 0 i nput err ors , 0 CRC, 0 f r ame, 0 overr un, 0 i gnored 0 wat chdog, 0 mul t i cast , 0 pause i nput 0 0 0 0 0 0
b.
packet s out put , 0 byt es, 0 underr uns out put err or s, 0 col l i si ons, 0 i nt er f ace reset s unknown pr ot ocol dr ops babbl es, 0 l at e col l i si on, 0 def er r ed l ost car r i er , 0 no car r i er , 0 pause out put out put buf f er f ai l ur es, 0 out put buf f ers swapped out
Given the output of the show interface gigabitEthernet 0/0 command depicted above, or using the output from your router, answer the following questions: What is the hardware type and MAC address of the Gigabit Ethernet interface?
What is the interface media type? Is the interface up or down?
c.
Use the show interfaces serial 0/0/0 command to view the status of the Serial 0/0/0 interface.
Rout er # show interface serial 0/0/0 Ser i al 0/ 0/ 0 i s admi ni st r at i vel y down, l i ne pr ot ocol i s down Har dwar e i s WI C MBRD Ser i al MTU 1500 byt es, BW 1544 Kbi t / sec, DLY 20000 usec, r el i abi l i t y 255/ 255, t xl oad 1/ 255, r xl oad 1/ 255 Encapsul at i on HDLC, l oopback not set Keepal i ve set ( 10 sec) Last i nput 07: 41: 21, out put never, out put hang never Last cl ear i ng of "show i nt erf ace" count ers never I nput queue: 0/ 75/ 0/ 0 ( si ze/ max/ dr ops/ f l ushes) ; Tot al out put dr ops: 0 Queuei ng str at egy: f i f o Out put queue: 0/ 40 ( si ze/ max) 5 mi nut e i nput r ate 0 bi t s/ sec, 0 packet s/ sec 5 mi nut e out put r at e 0 bi t s/ sec, 0 packet s/ sec 1 packet s i nput , 24 byt es, 0 no buf f er Recei ved 1 br oadcast s ( 0 I P mul t i cast s) 0 r unt s, 0 gi ant s, 0 t hr ot t l es
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Page 7 of 8
Lab - Exploring Router Physical Characteristics 0 i nput err ors , 0 CRC, 0 f r ame, 0 overr un, 0 i gnored, 0 abort 0 0 0 0
packet s out put , 0 byt es, 0 underr uns out put err or s, 0 col l i si ons, 2 i nt er f ace reset s unknown pr ot ocol dr ops out put buf f er f ai l ur es, 0 out put buf f ers swapped out
1 c ar r i er t r a ns i t i ons DCD=down DSR=down DTR=down
d.
RTS=down
CTS=down
Given the output command depicted above, answer the following questions: What is the frame encapsulation type?
What is the hardware type? Is the interface up or down?
Reflection 1.
Why might you need to use an EHWIC expansion slot?
2.
Why might you need to upgrade the Flash memory?
3.
What is the purpose of the mini-USB port?
4.
What is the purpose of the ISM/WLAN indicator light on the backplane of the router? What does it refer to?
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Page 8 of 8
