OT - Cisco command - Half- to Full-Duplex

Yahoo Archive
1
Steven,



Should be "no half-duplex" as Brandon suggested. That's the trick on
Cisco...by default they come Full Duplex so you have force half-duplex.
By "unforcing" it you set it back to default.



To get a more detailed look at the interface type



Show ip interface eth 0/0



That should give you a better look at what your interface is set too.
I'm a little rusty on the commands, but if that doesn't work you can
always try show ip ? and it will only give you the downstream commands
recognized from that point forward.



Hope this helps.



Thanks,



Jason Claggett

Microsoft Small Business Specialist

MCP #3856159

2W Technologies, LLC

317.578.2393

jason@...

From: vantage@yahoogroups.com [mailto:vantage@yahoogroups.com] On Behalf
Of leylandpalmer
Sent: Wednesday, June 06, 2007 4:41 PM
To: vantage@yahoogroups.com
Subject: [Vantage] Re: OT - Cisco command - Half- to Full-Duplex



Thank you everyone for the suggestions.

I'll give it a whirl!

Steven





[Non-text portions of this message have been removed]
2
Please excuse the off-topic question...

I have a Cisco router that has an ethernet interface set to half-
duplex. I set this myself years and years ago.

"Show config" shows the current config as:

!
!
interface Ethernet0/0
ip address 192.168.101.4 255.255.255.0
half-duplex
!
interface FastEthernet0/0
{{{{{etc...}}}}}

I need to change it to full-duplex, but my middle-aged brain has
totally forgotten the Cisco line commands.

I sign onto the router and "enable" it with the "en" command. I
enter the command "config t" to begin my changes. I enter "int e0/0"
to change the interface. I enter "duplex full". I enter "exit" and
then "show config" and see that my changes didn't stick.

What am I doing wrong?

Steven
3
Try using the apply command prior to exiting.



Bruce Butler

IT Manager

Knappe & Koester, Inc.

_____

From: vantage@yahoogroups.com [mailto:vantage@yahoogroups.com] On Behalf
Of leylandpalmer
Sent: Wednesday, June 06, 2007 3:38 PM
To: vantage@yahoogroups.com
Subject: [Vantage] OT - Cisco command - Half- to Full-Duplex



Please excuse the off-topic question...

I have a Cisco router that has an ethernet interface set to half-
duplex. I set this myself years and years ago.

"Show config" shows the current config as:

!
!
interface Ethernet0/0
ip address 192.168.101.4 255.255.255.0
half-duplex
!
interface FastEthernet0/0
{{{{{etc...}}}}}

I need to change it to full-duplex, but my middle-aged brain has
totally forgotten the Cisco line commands.

I sign onto the router and "enable" it with the "en" command. I
enter the command "config t" to begin my changes. I enter "int e0/0"
to change the interface. I enter "duplex full". I enter "exit" and
then "show config" and see that my changes didn't stick.

What am I doing wrong?

Steven





[Non-text portions of this message have been removed]
4
Thanks for responding.

I typed "apply" right after entering "duplex full" while in
the "config-if" mode but I get an error for that command.

It looks like I am running version 12.2 of the Cisco Internetwork
Operating System. Perhaps "apply" works only on later versions???

This is an old router.

Steven

--- In vantage@yahoogroups.com, "Bruce Butler" <bbutler@...> wrote:
>
> Try using the apply command prior to exiting.
>
>
>
> Bruce Butler
>
> IT Manager
>
> Knappe & Koester, Inc.
>
5
Try "write m"





Patrick J. Winter



From: vantage@yahoogroups.com [mailto:vantage@yahoogroups.com] On Behalf
Of leylandpalmer
Sent: Wednesday, June 06, 2007 2:58 PM
To: vantage@yahoogroups.com
Subject: [Vantage] Re: OT - Cisco command - Half- to Full-Duplex



Thanks for responding.

I typed "apply" right after entering "duplex full" while in
the "config-if" mode but I get an error for that command.

It looks like I am running version 12.2 of the Cisco Internetwork
Operating System. Perhaps "apply" works only on later versions???

This is an old router.

Steven

--- In vantage@yahoogroups.com <mailto:vantage%40yahoogroups.com> ,
"Bruce Butler" <bbutler@...> wrote:
>
> Try using the apply command prior to exiting.
>
>
>
> Bruce Butler
>
> IT Manager
>
> Knappe & Koester, Inc.
>





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[Non-text portions of this message have been removed]
6
Here's the IOS 12.2 command reference for speed and duplex modes:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/
finter_c/icflanin.htm#wp1012785

Regards, Lee
Commercial Tool & Die, Inc.
________________________________

From: vantage@yahoogroups.com [mailto:vantage@yahoogroups.com] On Behalf
Of leylandpalmer
Sent: Wednesday, June 06, 2007 3:58 PM
To: vantage@yahoogroups.com
Subject: [Vantage] Re: OT - Cisco command - Half- to Full-Duplex



Thanks for responding.

I typed "apply" right after entering "duplex full" while in
the "config-if" mode but I get an error for that command.

It looks like I am running version 12.2 of the Cisco Internetwork
Operating System. Perhaps "apply" works only on later versions???

This is an old router.

Steven

--- In vantage@yahoogroups.com <mailto:vantage%40yahoogroups.com> ,
"Bruce Butler" <bbutler@...> wrote:
>
> Try using the apply command prior to exiting.
>
>
>
> Bruce Butler
>
> IT Manager
>
> Knappe & Koester, Inc.
>
7
After getting to the interface, simply type no half-duplex and hit
enter. This should remove half and force full duplex on the interface.

Exit interface see if changes are there save the running config to
startup config and you should be fine.

Brandon Murch
WindStone Medical Packaging, Inc.
Supervisor of Information Technology
(406)259-6387
bmurch@...
www.windstonemedical.com


-----Original Message-----
From: leylandpalmer [mailto:srussell@...]
Sent: Wednesday, June 06, 2007 1:38 PM
To: vantage@yahoogroups.com
Subject: [Vantage] OT - Cisco command - Half- to Full-Duplex

Please excuse the off-topic question...

I have a Cisco router that has an ethernet interface set to half-
duplex. I set this myself years and years ago.

"Show config" shows the current config as:

!
!
interface Ethernet0/0
ip address 192.168.101.4 255.255.255.0
half-duplex
!
interface FastEthernet0/0
{{{{{etc...}}}}}

I need to change it to full-duplex, but my middle-aged brain has
totally forgotten the Cisco line commands.

I sign onto the router and "enable" it with the "en" command. I
enter the command "config t" to begin my changes. I enter "int e0/0"
to change the interface. I enter "duplex full". I enter "exit" and
then "show config" and see that my changes didn't stick.

What am I doing wrong?

Steven



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8
Thank you everyone for the suggestions.

I'll give it a whirl!

Steven