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May 17, 2007
Pasting a Configuration Into Cisco Devices...Error Free!
If you've been working with Cisco devices for awhile, you know that the fastest way to backup your configuration is:
1. Do a "show run" command
2. Copy all the output to your clipboard
3. Paste it into notepad
Then, if you need to restore the configuration you just move into global configuration mode and paste all the output back in. Voila! Insta-configured Cisco device. Here's the problem...when you paste in larger configuration files, it fails. Somewhere after about 50-80 lines of config, the input begins to get scrambled and jumbled all around. The reason is the Cisco device cannot keep up with the data that you are entering. So...how do fix this? Slow down the input! Here's how:
All terminal programs have a setting called “Transmit delay msec/line” for the serial port. Here’s a view of what it looks like in Tera Term:
By default, this is some absurdly low value somewhere between 0-10 msec, which means your terminal program will just keep flooding the data and not give the receiving device enough pause to apply it. Adjust this value to something between 35-50 msec and your Cisco device will have no problem keeping up with the data.
Posted by JC at May 17, 2007 11:28 AM
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Comments
Hi,
Network Cofiguration Management softwares could also be used for this purpose. Tools like KiwiCat make this job much easier.
There are also web-based softwares such as ManageEngine DeviceExpert that would really come in handy for all configuration Management tasks. More information at: http://www.deviceexpert.com
Balan
Posted by: Balan at May 22, 2007 4:40 AM
Hello.
Cisco Network Assistant is a free tool for anyone with a CCO account
://Leo
Posted by: Leo Bergstrom at June 13, 2007 4:02 AM
In SecureCRT, would this be the option that that says: Serial break length: 100 ms
If so, it seems to me I wouldnt have to change it.
Thanks
Posted by: Joshua Walton at July 19, 2007 7:46 AM
Joshua - Actually, that's not the same thing; the serial break length is used for sending break signals (to get into ROMMON, or something like that). I haven't been able to find the setting in SecureCRT and am actually starting to think SecureCRT doesn't support this (yikes!). Anyone found anything to do this on SecureCRT?
Posted by: JC at July 30, 2007 6:02 PM
Global Options - Terminal - Line Send Delay = default setting is 5 ms.
Posted by: Todd at October 1, 2007 9:50 AM
Thanks Todd!
Posted by: JC at October 4, 2007 1:33 PM
Thanks for this info!
FYI - SecureCRT ver 5.5+
Global Options - Terminal - Advanced Line Send Delay = default setting is 5 ms
Posted by: Richard at February 15, 2009 8:11 PM