| Author |
Can't find answer in book
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| Bullfrog 2002-07-08, 12:56 pm |
| I took the test a couple of weeks ago and missed by a couple of questions. One question still eludes me and I can't find the answer in my book.(used the Wendell Odom Cert guide Book)The question went something like this.
The following is a partial representation of the result obtained when entering the show interface serial command: Router# show int s 1
Serial is up, line protocol is down
How would you interpret this status printout?
Is this administratively shut down? What can cause this.
Thanksquote:
A friend will bail you out of jail, but a best friend will be sitting next to you saying "That was %@#*&^ awsume!"
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| jeff_j_black 2002-07-08, 1:52 pm |
| Keep alive issue or other protocol configuration, is most likely what at hand here.
Administratively down 'shows' as administratively down.
down (disabled) is a hardware issue. | |
| seraphim777 2002-07-09, 11:19 am |
| Bullfrog this sounds like a remote physical layer problem.quote:
Originally posted by Bullfrog
I took the test a couple of weeks ago and missed by a couple of questions. One question still eludes me and I can't find the answer in my book.(used the Wendell Odom Cert guide Book)The question went something like this.
The following is a partial representation of the result obtained when entering the show interface serial command: Router# show int s 1
Serial is up, line protocol is down
How would you interpret this status printout?
Is this administratively shut down? What can cause this.
Thanks
 | |
| makan007 2002-07-11, 7:25 am |
| line protocol is down -> got to do with encapsulation. | |
| eeesoftware 2002-07-11, 7:52 am |
| Serial link up / Line protocol Down
means that there is no traffic in the other end therfore no protocol..
Br
eee | |
| seraphim777 2002-07-11, 10:45 am |
| quote:
Originally posted by eeesoftware
Serial link up / Line protocol Down
means that there is no traffic in the other end therfore no protocol..
Br
eee
If you have serial link down and line protocal down that is an adminstratedly shutdown serial interface.
If you have serial up and line down it means you have a remote problem.
Makan007 is right.
I have not come across serial down and line protocal up, this wouldn't make any sense.
I forget where I saw this info, I have been studying alot for this exam, I have used Todd Lammel and Element K online studying.
I right my exam tommorrow, so I guess we'll find out if I did my homework.
Anyways this is the best I can do, I have to get back to the books. Good Luck. | |
| freak 2002-07-11, 11:21 am |
| If you unplug the cable from the router, you will get a protocol down message when you run a command like "sh ip int bri"... | |
| seraphim777 2002-07-11, 12:27 pm |
| quote:
Originally posted by freak
If you unplug the cable from the router, you will get a protocol down message when you run a command like "sh ip int bri"...
That makes sense. Thanks | |
| freak 2002-07-11, 12:33 pm |
| You're welcome. BTW you will also get that error is you use a crossover cable as opposed to a straight through cable | |
| bfattima 2002-07-12, 7:04 am |
| quote:
Originally posted by Bullfrog
I took the test a couple of weeks ago and missed by a couple of questions. One question still eludes me and I can't find the answer in my book.(used the Wendell Odom Cert guide Book)The question went something like this.
The following is a partial representation of the result obtained when entering the show interface serial command: Router# show int s 1
Serial is up, line protocol is down
How would you interpret this status printout?
Is this administratively shut down? What can cause this.
Thanks
When the protocol down u need to look at subnet mask, clock rate, routed and encapsulation those what cause the protocol to be down.
if you have the CBT you'll seea chart explain all that. | |
| seraphim777 2002-07-12, 12:18 pm |
| quote:
Originally posted by seraphim777
If you have serial link down and line protocal down that is an adminstratedly shutdown serial interface.
If you have serial up and line down it means you have a remote problem.
Makan007 is right.
I have not come across serial down and line protocal up, this wouldn't make any sense.
I forget where I saw this info, I have been studying alot for this exam, I have used Todd Lammel and Element K online studying.
I right my exam tommorrow, so I guess we'll find out if I did my homework.
Anyways this is the best I can do, I have to get back to the books. Good Luck.
Well I wrote my exam today and passed, it's pretty straight forward just look at it from a logical point there is definetly a system like all others, so don't pay any attention to the doom and gloom poeple.
Remember;
-subnetting
-commands
-protocals
-ios
-igrp and rip are the main focus.
Good luck to you all and remeber there are no short cuts. | |
| freak 2002-07-12, 12:29 pm |
| quote:
Originally posted by seraphim777
Remember;
-subnetting
-commands
-protocals
-ios
-igrp and rip are the main focus.
Yeah, what he said, along with the fact that it is actually spelled "protocols" 
Just playfully being a smart alec...
Congrats on the pass!!! | |
| jeff_j_black 2002-07-12, 1:44 pm |
| seraphim777
Congrats on the pass!!!
P.S. Love the name! | |
| seraphim777 2002-07-12, 3:13 pm |
| quote:
Originally posted by freak
Yeah, what he said, along with the fact that it is actually spelled "protocols"
Just playfully being a smart alec...
Congrats on the pass!!!
Hey Freak what is it exactly that you do? | |
| nyriavo 2002-07-14, 3:55 pm |
| Make sure when you read the question!!!!!
It could be either an encapsulation problem in the interface or some keepalives problems!!!!! | |
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| quote:
Originally posted by seraphim777
Hey Freak what is it exactly that you do?
I am a network engineer.... again. I was a MCSE trainer for the past three years. | |
| seraphim777 2002-07-15, 10:55 am |
| quote:
Originally posted by freak
I am a network engineer.... again. I was a MCSE trainer for the past three years.
Excellent!
In your opinion what is the best desaster recovery certification or a course that covers this area? | |
| BrentE 2002-07-15, 6:31 pm |
| <Serial0 is up, line protocol is down>
As was stated before this could mean you are having a keepalive issue. You need to:Check the keepalives and encapsulation at both ends and make sure they match, also set the clock rate if needed
For more about this topic check out Todd Lammle's CCNA Study Guide Chapter 4
Good Luck! | |
| bfattima 2002-07-16, 10:48 am |
| quote:
Originally posted by BrentE
<Serial0 is up, line protocol is down>
As was stated before this could mean you are having a keepalive issue. You need to:Check the keepalives and encapsulation at both ends and make sure they match, also set the clock rate if needed
For more about this topic check out Todd Lammle's CCNA Study Guide Chapter 4
Good Luck!
When they gave you the question on the CCNA exam you can't check both ends?????? | |
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| The original question is:
Router A is connected to Router B, a non-cisco router.You`re given a diagram, and then it says, using the command output shown
what must be configured on router A`s s0 to change the line protocol from down to up?
A.no shutdown
B.encapsulation ppp
C.interface serial point-to-point
D.clock rate 56000
Answer is B.
Explanation: for the line to come up, encap ppp must be enabled.
A.interface has already been enabled
c.interface has been created already
d.only sets the clockrate
Send me your e-mail address, I`ve got something for you.
Blessed is he who gives.
SPIN
quote:
Originally posted by Bullfrog
I took the test a couple of weeks ago and missed by a couple of questions. One question still eludes me and I can't find the answer in my book.(used the Wendell Odom Cert guide Book)The question went something like this.
The following is a partial representation of the result obtained when entering the show interface serial command: Router# show int s 1
Serial is up, line protocol is down
How would you interpret this status printout?
Is this administratively shut down? What can cause this.
Thanks
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