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Cannot create Vlans on extended range

ctinajero
Level 1
Level 1

Hello everyone,

I am getting the following error when I am trying to create any Vlan# higher than 1000:

"VTP advertisements transmitting temporarily stopped,

and will resume after the command finishes.

Cannot set vlans in extended range.

Reduced Mac Address feature is disabled in NVRAM."

Any ideas how to fix this?

Thank you,

Carlos T.

2 Replies 2

Prashanth Krishnappa
Cisco Employee
Cisco Employee

You need to enable MAC address reduction

Console> (enable) set spantree macreduction enable

MAC address reduction enabled

http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/sw_7_2/confg_gd/vlans.htm#1070622

jimirwin
Level 1
Level 1

Also, you may try to put the switch in VTP transparent mode.

http://www.cisco.com/warp/customer/473/103.html

page 7, as one of the advantages to transparent mode:

"The extended VLAN range in CatOS 6.x, numbers 1025-4094, can only be configured in this way."