Remove commands

[FrankFlintstone16044]

Hi

I am working through CCNA material which focusses on configuring and validation.  This is great but I am looking to also remove the commands from the switch.

As an example (CCNA Etherchannel) 

Configure with channel-group 1 mode on

Validate with sh spanning-tree or sh etherchannel 1 summary

This all works but how do you remove the etherchannel?

When I try the "no" command, i.e: no channel-group 1 mode on 

I get this error % Invalid input detected at '^' marker.

I have the same issue as well when configuring access. I can configure all the access needs, passwords from line con 0 and vty and I can undo them with no command.  But with local username and password (username wendell secret odom) when I try to use the "no" command it keeps the logins but then won't me let log in?

I don't want to have to reset the switch every time I do this as its not practical for client sites

Any guidance appreciated community

[FrankFlintstone16044]

Quick update, I realise I have to go back in to each int or int range to remove the int from the channel-group however channel group is still there, how do i remove that?

Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
1 Po1(SD) -

[MHM Cisco World]

no interface port-channel <<- remove the PO from SW
then reload the SW/R 
and do check again 
that it

[FrankFlintstone16044]

switch(config)#no port-channel
% Incomplete command.

switch(config)#no port-channel 1
^
% Invalid input detected at '^' marker.

[balaji.bandi]

Can you post output below :

show etherchannel summary

you like to remove you need to use below syntax:

switch(config)#no interface port-channel 1

[FrankFlintstone16044]

Before I do that do you know why int Fa0/3 would be suspended?

Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
1 Po1(SU) - Fa0/1(P) Fa0/2(D) Fa0/3(s)

[FrankFlintstone16044]

Okay so, int Fa0/1 does not sh up in sh vlan brief

VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/2, Fa0/3, Fa0/4, Fa0/5
Fa0/6, Fa0/7, Fa0/8, Fa0/9
Fa0/10, Fa0/11, Fa0/12, Fa0/13
Fa0/14, Fa0/15, Fa0/16, Fa0/17
Fa0/18, Fa0/19, Fa0/20, Fa0/21
Fa0/22, Fa0/23, Fa0/24, Gi0/1
Gi0/2, Po1

This should mean it is trunked, as Fa0/3 is not trunked this may be why it is not showing BUT Fa0/1 does not appear in sh int trunk

switch#sh int trunk

switch#sh vlan brief

[FrankFlintstone16044]

Also, my Fa0/1 has just changed to (I) standalone

Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
1 Po1(SD) - Fa0/1(I) Fa0/2(D) Fa0/3(s)

[balaji.bandi]

To remove as suggested :

switch(config)#no interface port-channel 1

Also, my Fa0/1 has just changed to (I) standalone

I - means other side not participated in port-channel that is individual

S- Suspended  due to misconfiguration

[FrankFlintstone16044]

Have checked Fa0/3

It shows in vlan brief, it is same speed and duplex on both switches. 

what else could be misconfigured?

[FrankFlintstone16044]

Okay so, int Fa0/1 does not sh up in sh vlan brief

VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/2, Fa0/3, Fa0/4, Fa0/5
Fa0/6, Fa0/7, Fa0/8, Fa0/9
Fa0/10, Fa0/11, Fa0/12, Fa0/13
Fa0/14, Fa0/15, Fa0/16, Fa0/17
Fa0/18, Fa0/19, Fa0/20, Fa0/21
Fa0/22, Fa0/23, Fa0/24, Gi0/1
Gi0/2, Po1

This should mean it is trunked, as Fa0/3 is not trunked this may be why it is not showing BUT Fa0/1 does not appear in sh int trunk

switch#sh int trunk

switch#sh vlan brief

[FrankFlintstone16044]

okay so found the issue.  Combining three Fa01-3 ports.  This is the error message

*Mar 1 01:59:39.624: %EC-5-CANNOT_BUNDLE2: Fa0/3 is not compatible with Po1 and will be suspended (trunk encap of Fa0/3 is auto, Po1 is dot1q)

What I don't understand is in the sh int fa0/3 it states the encapsulation is ARPA.  I have checked all three ports on both switches and everything is the same.  Don't understand this.  Thoughts?

[MHM Cisco World]

just one sec. you want to remove the PO or correct it ??

[FrankFlintstone16044]

I am now looking to correct it...sorry

okay so found the issue.  Combining three Fa01-3 ports.  This is the error message

*Mar 1 01:59:39.624: %EC-5-CANNOT_BUNDLE2: Fa0/3 is not compatible with Po1 and will be suspended (trunk encap of Fa0/3 is auto, Po1 is dot1q)

What I don't understand is in the sh int fa0/3 it states the encapsulation is ARPA.  I have checked all three ports on both switches and everything is the same.  Don't understand this.  Thoughts?

[MHM Cisco World]

the command you need 
under the member port of PO 
config 
switchport trunk encap dot1q
this will solve issue 
notice:- here we talk about the Trunk encap not the ethernet encap