Re: Why Can not configure trunk on this interface

I mean it should not accept
Cheers

Sent from my iPhone

On 2010-11-22, at 2:11 PM, Ccieyarub <ccieyarub_at_gmail.com> wrote:

> Thanks so much everyone answered me
> I think the logic of the cli is wrong since it should accept from me
> the command
> switchport trunk allowed vlan 200
> On the interface if the switch still has not accept the mode trunk
> configuration neither ISL nor dot1q
>
> But thanks so much again
> Bert
> On 2010-11-21, at 9:04 AM, Marko Milivojevic <markom_at_ipexpert.com>
> wrote:
>
>> Do this:
>>
>> sw tr enc dot
>> sw mo tr
>> sw noneg
>>
>> On the interface.
>>
>>
>> --
>> Marko Milivojevic - CCIE #18427
>> Senior Technical Instructor - IPexpert
>>
>> Free CCIE Training: http://bit.ly/vLecture
>>
>> Mailto: markom_at_ipexpert.com
>> Telephone: +1.810.326.1444
>> Community: http://www.ipexpert.com/communities
>>
>> :: Sent from my phone. Apologies for errors and brevity. ::
>>
>> On Nov 21, 2010, at 14:00, Ccieyarub <ccieyarub_at_gmail.com> wrote:
>>
>>> Hi Guys,
>>> That could be simple but I am more used to core routers IOS XR
>>> specific than small switches, I would appreciate if some one please
>>> let me know why I cannot configure mode trunk on this switch which
>>> is
>>> connected to ASR 1004 router from the other side. I did not config
>>> the interface trunk as Auto and did not config the dynamic status
>>> as
>>> below
>>> Thanks so much
>>> Bert
>>>
>>>
>>> From the switch side here is the error I get on the configs
>>> Switch(config-if)#switchport mode trunk
>>> Command rejected: An interface whose trunk encapsulation is "Auto"
>>> can
>>> not be configured to "trunk" mode.
>>> Switch(config-if)#switchport au
>>> Switch(config-if)#switchport noneg
>>> Switch(config-if)#switchport nonegotiate ?
>>> <cr>
>>>
>>> Switch(config-if)#switchport nonegotiate
>>> Command rejected: Conflict between 'nonegotiate' and 'dynamic'
>>> status.
>>>
>>>
>>>
>>>
>>>
>>> CONFIGS FOR THE SWITCH C3750
>>>
>>> Switch#show running-config
>>> Building configuration...
>>>
>>> Current configuration : 1538 bytes
>>> !
>>> version 12.2
>>> no service pad
>>> service timestamps debug datetime msec
>>> service timestamps log datetime msec
>>> no service password-encryption
>>> !
>>> hostname Switch
>>> !
>>> boot-start-marker
>>> boot-end-marker
>>> !
>>> !
>>> !
>>> !
>>> no aaa new-model
>>> switch 1 provision ws-c3750-24p
>>> system mtu routing 1500
>>> authentication mac-move permit
>>> ip subnet-zero
>>> !
>>> !
>>> !
>>> !
>>> !
>>> !
>>> !
>>> !
>>> spanning-tree mode pvst
>>> spanning-tree etherchannel guard misconfig
>>> spanning-tree extend system-id
>>> !
>>> vlan internal allocation policy ascending
>>> !
>>> !
>>> !
>>> !
>>> interface Loopback0
>>> ip address 167.54.4.115 255.255.255.255
>>> !
>>> interface FastEthernet1/0/1
>>> !
>>> interface FastEthernet1/0/2
>>> !
>>> interface FastEthernet1/0/3
>>> !
>>> interface FastEthernet1/0/4
>>> !
>>> interface FastEthernet1/0/5
>>> !
>>> interface FastEthernet1/0/6
>>> !
>>> interface FastEthernet1/0/7
>>> !
>>> interface FastEthernet1/0/8
>>> !
>>> interface FastEthernet1/0/9
>>> !
>>> interface FastEthernet1/0/10
>>> !
>>> interface FastEthernet1/0/11
>>> !
>>> interface FastEthernet1/0/12
>>> !
>>> interface FastEthernet1/0/13
>>> !
>>> interface FastEthernet1/0/14
>>> !
>>> interface FastEthernet1/0/15
>>> !
>>> interface FastEthernet1/0/16
>>> !
>>> interface FastEthernet1/0/17
>>> !
>>> interface FastEthernet1/0/18
>>> !
>>> interface FastEthernet1/0/19
>>> !
>>> interface FastEthernet1/0/20
>>> !
>>> interface FastEthernet1/0/21
>>> !
>>> interface FastEthernet1/0/22
>>> !
>>> interface FastEthernet1/0/23
>>> !
>>> interface FastEthernet1/0/24
>>> !
>>> interface GigabitEthernet1/0/1
>>> switchport trunk allowed vlan 200
>>> !
>>> interface GigabitEthernet1/0/2
>>> !
>>> interface Vlan1
>>> no ip address
>>> !
>>> ip classless
>>> ip http server
>>> ip http secure-server
>>> !
>>> !
>>> ip sla enable reaction-alerts
>>> !
>>> !
>>> !
>>> line con 0
>>> line vty 5 15
>>> !
>>> End
>>>
>>>
>>> From the ASR side
>>> interface GigabitEthernet1/0/1
>>>
>>> no ip address
>>> no ip proxy-arp
>>> negotiation auto
>>> end
>>>
>>>
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Received on Mon Nov 22 2010 - 14:28:52 ART