Remote_config_help

[Flyers01]

I need some help here I have a project coming up I have 3550/3560
Over 200 sites with anywhere 6 to 11 switches onsite
I will be configuring remotely

Current cross connects configS

interface GigabitEthernet0/1
switchport trunk encapsulation dot1q
switchport mode trunk
end

I have to put this on the switches without losing any connections I tried several ways to no success any suggestions would be great

vlan 5
name bucket_unused
shut

switchport
switchport mode trunk
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1
switchport trunk native vlan 5
switchport nonegotiate

 

[Minue]

Hello
You didn't explain the problem clearly.Can you post a conf of the switch before you put the new conf.
From what I have understood,the switches are connected with crossover cables to interface GigabitEthernet0/1 and you have full connectivity with telnet.The moment you apply the new config,you loses connection the switch.If you try to reconnect is it possible?
Regards

 

[Flyers01]

Current config
interface GigabitEthernet0/1
switchport trunk encapsulation dot1q
switchport mode trunk
---------------------------
Config I am putting on
switchport
switchport mode trunk
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1
switchport trunk native vlan 5
switchport nonegotiate
----------------------------------------
As soon as put native vlan 5 I loose conection
I can configure the other switch and reconnect
however during this project I will be using scripts to do this and can never loose connection

 

[burtsbees]

The other end of the trunk must have the native vlan 5 as well---no way you can do this without being consoled in, i.e. losing connection. I would RDC to a server that is consoled into the switch.

Burt

 

[Flyers01]

That is what I am afraid of
I am hoping someone has a trick to make this work

Thanks

 

[Flyers01]

IT would be great if I could change the start-up config
and reboot when changes is needs it.
But How can without TFTP into flash

 

[burtsbees]

If you have a copy of the config somewhere, you can modify it with Word Pad (Windows), and then tell the switch to boot to tftp to the new config, and change it back after it reboots.
Why not just RDC into a server that can console into the switch???

Burt

 

[Flyers01]

This is not a option
Why not just RDC into a server that can console into the switch

I have several switches onsite and are in remote closets.
Plus I we don't have any access to the servers.

There is only two ways that I know how to do this
1. Manually alot of Hours
2. Scripts that build configs and tftp to switches
Problem with this'
I have to build a new configation for all switches I can't just tftp the changes that need to be made.
I would have to tftp the current configs then mod them and then tftp back and reboot.
WOW

 

[burtsbees]

Pretty much---the first thing I do when I get a router or switch is copy the IOS image and config file (after I configure it) to my computer.

Burt

 

[Flyers01]

Yeah thanks.
If there is any other idea please let me know.

 

[Minue]

Hello
Try not to "shut" the VLAN 5 ! Shut it Later with another script.
Regards

 

[Flyers01]

Yeah I tried that also.
Last night I was able to get it to work halfway
with ISL
so this worked
--------------------------
switchport mode dynamic desirable
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1
AT this point I can ping both ways
but when I turn on dot1q I loose it
--------------------------
Trunk neg at ISL now the trick is to neg a Dot1q without losing it

 

[Minue]

Try putting : switchport trunk allowed vlan 1 and Vlan5 on switch,that you are using to make the connection to the remote swicth.
Regards