Bulk vlan... ssh?

vnce
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Bulk vlan... ssh?

Tue Apr 25, 2017 1:38 pm

I am curious in the ability to add a bulk number of vlans easily through either the web interface, i.e. add vlan 1006-1133,, or possible through ssh? I will be honest I dont have a linux background and am learning this as i go so it might be there.. the Issue Im having is when I have to load over 70 vlans into the switch it slows down the interface significantly,, when I get close to 100 vlans it takes 2 seconds per vlan to add. at this point im just adding the info and not tagging them yet, I have even given up on adding a description because if i type more then 3 letters it goes all wonky until it catches up. I have some switches I have over 300 vlans in and to be honest it takes over an hour just to add them.. I have to be doing some thing inefficiently........ there must be a better way..

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sirhc
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Re: Bulk vlan... ssh?

Tue Apr 25, 2017 2:00 pm

You want to use the Trunk Port/Allowed VLANs option.

The default is all VLAN ID's (1-4095) which really should not be used, always define the allowed VLANs, be as specific as possible for security reasons and to properly segregate traffic.

You can then add a list of VLANs you want that matrix entry to allow such as "100-200,212,919,900-1200"
Notice you can give a range of IDs or a single ID delineated by commas.

Do not forget you need the same list on ingress and egress ports

And you can do everything in the CLI that you do in the UI just use the inline CLI help feature, spend some time getting to know your switch UI/CLI in the lab in your spare time.

CLICK IMAGE BELOW TO VIEW FULL SIZE
allowed VLAN ID's.png
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vnce
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Re: Bulk vlan... ssh?

Tue Apr 25, 2017 2:50 pm

so by doing it this way does it not list out the current vlans? sometimes I have to move vlans from one port to another. I just want to be sure im not screwing it up.

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sirhc
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Re: Bulk vlan... ssh?

Tue Apr 25, 2017 3:24 pm

vnce wrote:so by doing it this way does it not list out the current vlans? sometimes I have to move vlans from one port to another. I just want to be sure im not screwing it up.


I am not sure I follow you, you have to give an example.

Or play with one in your LAB to determine it behaves the way you it to.
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