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Extreme and Cisco VLAN Naming - question.

Posted on 2010-01-04
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Last Modified: 2012-05-08
We have started to integrate Extreme network switches into our primarily 'CIsco' network. I have noticed that when naming VLAN's on our Extreme switches (Summit X450a) the VLAN name has to begin with a character, not a number. This presents a small problem as all our CIsco defined VLAN's are numerical. Does this mean I have to reconfigure all of my Cisco switches to use a naming scheme that at least begins with a character? Not a number... Or is there another way to go about this.

Example,

Our Cisco enviromnet has multiple VLANS, all are names similar to -

VLAN 14
VLAN 16
VLAN 17 and so forth

WIth the Extreme, I am assuming these need to be named -

VLAN x14
VLAN x16
VLAN x17

Where x is an character - a-z or A-Z, and cannot be a number.

Is this correct? Do I have to re-define all my Cisco VLAN names?
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Question by:tobyhansen
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marmata75 earned 2000 total points
ID: 26171131
Hi,
unfortunately on Extreme hardware, any name must begin with a alphabetic character.
Pleae note that this is just aesthetic since for the trunking to work, just vlan numbers must match, the vlan names are purely descriptive. You'll see in Cisco that the vlans have both an ID and a name, like this:

#show vlan brief

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
1    default                          active    Gi0/9, Gi0/11,
2    CORPORATE                 active    Gi0/1, Gi0/2, Gi0/3, Gi0/4, Gi0/5, Gi0/6
3    GUESTS                       active     Gi0/7, Gi0/8, Gi0/12, Gi0/13, Gi0/14, Gi0/15
4    DMZ                            active      Gi0/17, Gi0/18, Gi0/19

while the IDs are just numeric, and must match the Extreme side, the names can be anything on Cisco, and must start with an alphabetic character on Extreme. You may want to:
- Rename the vlans on both Cisco and Extreme so they have meanigful values, instead of simply a number
- Just prepend a character to all you vlan names on the Extreme side like VLANxxx or Vxxx, so that you understand at a glance what should be the name on the Cisco side.

Cheers,
]\/[arco
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Author Closing Comment

by:tobyhansen
ID: 31672368
Understood. Thank you very much. This makes perfect sense.

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