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| JF Mezei... |
 Posted: Tue Oct 27, 2009 2:44 pm |
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Guest
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I have what is now considered an ancient 2924 switch
IOS (tm) C2900XL Software (C2900XL-C3H2S-M), Version 12.0(5)WC16,
(Enterprise Edition Software).
It will not let me define one port to be
switchport mode multi
switchport multi vlan 10,20
with an error message about this not being possible when there is a
"trunk" port defined on the switch.
Is this just some silly arbritary restriction on that model or are there
protocol/architectural reasons that prevent combination of trunk ports
and multi ports on any/all switches ? |
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| geoar75 at (no spam) gmail.com... |
| Posted: Tue Oct 27, 2009 2:44 pm |
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Guest
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Hi,
You can't use multi-VLAN mode when trunk is enabled.
Giorgos
--
NetPros
http://netpros.freeforums.org
On 27 Οκτ, 12:44, JF Mezei <jfmezei.spam... at (no spam) vaxination.ca> wrote:
Quote: I have what is now considered an ancient 2924 switch
IOS (tm) C2900XL Software (C2900XL-C3H2S-M), Version 12.0(5)WC16,
(Enterprise Edition Software).
It will not let me define one port to be
switchport mode multi
switchport multi vlan 10,20
with an error message about this not being possible when there is a
"trunk" port defined on the switch.
Is this just some silly arbritary restriction on that model or are there
protocol/architectural reasons that prevent combination of trunk ports
and multi ports on any/all switches ? |
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| Doug McIntyre... |
| Posted: Tue Oct 27, 2009 6:44 pm |
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Guest
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JF Mezei <jfmezei.spamnot at (no spam) vaxination.ca> writes:
Quote: I have what is now considered an ancient 2924 switch
IOS (tm) C2900XL Software (C2900XL-C3H2S-M), Version 12.0(5)WC16,
(Enterprise Edition Software).
It will not let me define one port to be
switchport mode multi
switchport multi vlan 10,20
with an error message about this not being possible when there is a
"trunk" port defined on the switch.
Is this just some silly arbritary restriction on that model or are there
protocol/architectural reasons that prevent combination of trunk ports
and multi ports on any/all switches ?
Multi-VLAN mode was never well supported, and had a bunch of
restrictions, one of which is what you see, no multi-vlans if any
trunk port exists. I assume they did this for security purposes,
although it could have been an internal implementation limitation.
Cisco dropped multi-vlan mode after this switch model was EOL'd, and
no other cisco switches since have supported it. |
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