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New Member

How do I set to 0 the aging time mac address table for a VLANn?

How do I set to 0 the aging time mac address table for a VLANn?

I know that I can do it to all VLANs but I am only interested in one VLAN. I want it to have...

mac address-table aging-time 0 VLAN 2 (but this command is not recognized by IOS software)

I am working with IOS Version 12.1(12c)EA1

8 REPLIES

Re: How do I set to 0 the aging time mac address table for a VLA

The problem is with your syntax i guess.

You missed a hypen between mac and address.

Correct syntax: mac-address-table aging-time 0 vlan 2

Hope that helps!

New Member

Re: How do I set to 0 the aging time mac address table for a VLA

Nop, there is no problem with my syntax.

Does anybody else know what can I do?

Re: How do I set to 0 the aging time mac address table for a VLA

Was this command, entered in global configuration mode ?

This command was introduced from IOS versions, 12.0(7)XE.

Bronze

Re: How do I set to 0 the aging time mac address table for a VLA

The command you've entered is valid until the '0' parameter.

I don't think that would possible, as per Cisco docs.

It can only be enabled, globally, for all VLANs.

I was just thinking, what would be your objective in

enabling this for a single VLAN.

New Member

Re: How do I set to 0 the aging time mac address table for a VLA

Cisco says that it is possible to do this for a specific VLAN.

This is exactly the command from global configuration mode:

mac address-table aging-time 0 vlan 1

or

mac-address-table aging-time 0 vlan 1

but when I try to configure it... the IOS tells me that the command is correct until the "0".

I think this is a problem of Cisco IOS!!! And why does Cisco put in their release notes that it can be done???!!!

Bronze

Re: How do I set to 0 the aging time mac address table for a VLA

Yes, it is possible to do this for a specific vlan on Catalyst 6000,

4000, and 3550 series (Referring to the command reference).

What type of switch do you have? We have a Cat2950 in the lab and

this 'vlan' option is not supported. We are using 12.1(13)EA1 IOS.

I think that option is only available for switches with L3 capabilities.

New Member

Re: How do I set to 0 the aging time mac address table for a VLA

Yeah, we are working with Catalyst 2950 series.

I think this is a misstake from Cisco. They are telling at their site that it is possible to set the aging time to 0 for a specific VLAN.

New Member

Re: How do I set to 0 the aging time mac address table for a VLA

Here it is what I was trying to tell you.

At this link you can see a mistake from Cisco... http://www.cisco.com/en/US/products/hw/switches/ps628/products_configuration_guide_chapter09186a008014f296.html#1051018

At the "Managing the MAC Address Table" section (MAC Addresses and VLANs) Cisco explains users how they can set to 0 the mac address-table aging-time for a specific VLAN. This is for a Catalyst 2950 and IOS 12.1(13)EA1.

Thanks a lot for everyone!!!

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