RE: RE: HUGE STP VLAN problem

From: support@ccie.com.au
Date: Fri Feb 06 2009 - 22:54:16 ARST


thanks for all your help people !

i figured out the problem... and it all works now.. see below:

802.1Q/VLAN Usage

VLAN IDs on Catalyst 6500 and Cisco 7600 are global to the platform:

• A specific VLAN ID cannot be simultaneously configured on a Layer 3
subinterface and on a VLAN

interface (SVI).

• A specific VLAN ID cannot be re-used on multiple Layer 3 subinterface.

In case one of the above combinations is attempted, the following error
message is displayed on the

router console:

PE-7600-1#sho run int gig 7/1.10

Building configuration...

Current configuration : 106 bytes

!

interface GigabitEthernet7/1.10

encapsulation d ot1Q 10

end

PE-7600-1#config t

Enter configuration commands, one per line. End with CNTL/Z.

PE-7600-1(config)#vlan 10

PE-7600-1(config-vlan)#no shut

VLAN 10 is not shutdown.

PE-7600-1(config-vlan)#end

% Failed to create VLANs 10

VLAN(s) not available in Port Manager.

steve k

------- Original Message ------- On 2/6/2009 09:37 AM Joseph L. Brunner
wrote:
Wonderful post Pavel.. thank you too for that! Good show! :)

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Pavel Bykov
Sent: Friday, February 06, 2009 3:01 AM
To: support@ccie.com.au
Cc: ccielab@groupstudy.com
Subject: Re: HUGE STP VLAN problem

Hello.
After consulting with the colleague, here is the situation.
What you are trying to do is called a MUXED UNI, required for EoMPLS
(basically saving you money for ES20 linecard)
How it is done is that you do a

interface TenGigabitEthernet2/1
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 100-200
switchport mode trunk

interface TenGigabitEthernet2/1.150
encapsulation dot1Q 150

So, don't forget allowed vlan list.

BUT, this feature is available only in the latest SRC release, as far as
I
know.
So if you are not configuring MUXED UNI for EoMPLS, do not configure
this.
Use vlans and trunks instead, because creating routed interface creates
an
internal vlan anyway.

I.e.
interface TenGigabitEthernet2/1.150
encapsulation dot1Q 150
ip add 10.0.150.1 255.255.255.0
interface TenGigabitEthernet2/1.151
encapsulation dot1Q 151
ip add 10.0.151.1 255.255.255.0

is exactly same as

interface Te nGigabitEthernet2/1
switch mode trunk
int vlan 150
ip add 10.0.150.1 255.255.255.0
int vlan 151
ip add 10.0.151.1 255.255.255.0

but first one will not work :)

On Fri, Feb 6, 2009 at 8:41 AM, wrote:

> Hello people,
>
> Ive been in a cold datacenter for the past 12hrs trying to resolve a
> problem with our cat6509-e. the problem is very intersting and i have
> never seen anything like it before. i have tryed everything that i know
> but still no luck, so i resort to you guys for some help.
>
> the problem is:
>
> when trying to create a routed port "no switcport" then a sub-interface
> "int g2/5.207" its all O.K, untill i enter the command encapsulation
> dot1q.207" i get the error message "vlan 207 does not available" ....
O.K
> fine, when i go to create the vlan by entering conft# vlan 207 then
name
> it then exit, it says "VLAN(s) not available in Port Manager" !!
>
> so ive tryed changing the internal vlan usage allocation policy and
> reload but still the same thing !! ive tryed just about anything but no
> luck.. its b een 12 hrs now and i give up..
>
> the "sh spantree" command says "No spanning tree instance exists." !!!
> then when i do sh vlan i can see the vlan 207 is there and its active
!!
> what da !! ???
>
> any suggestions: ???? anyone seen this before on a cat6509 running
> 12.2(18)SXF7 avanced_ip_services ..??
>
> ive searched all of cisco site and only found this(which did not help)
>
>
http://supportwiki.cisco.com/ViewWiki/index.php/The_Cisco_Catalyst_6000/6500_
Series_switch_receives_the_VLAN(s)_not_available_in_Port_Manager_error_messag
e_when_it_attempts_to_create_a_VLANex.php/The_Cisco_Ca
talyst_6000/6500_Series_switch_receives_the_VLAN%28s%29_no
t_available_in_Port_Manager_error_message_when_it_attempts_to_create_a_VLAN>
>
> steve
>
> thanks
>
> Steve K
>
>
> Blogs and organic groups at http://www.ccie.net
>
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>
>
>
>

--
Pavel Bykov
----------------
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