From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Sun Oct 31 2004 - 13:32:47 GMT-3
Mike,
> Now the trunk will never negotiate via DTP because R6 cannot perform
> DTP.
Since the router does not support DTP, how can the trunk be negotiated
via DTP?
Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com
Internetwork Expert, Inc.
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> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> Mike Flanagan
> Sent: Sunday, October 31, 2004 10:03 AM
> To: Ccielab
> Subject: IE Lab 7 task 1.4 - 1.5
>
> Hello,
>
> This task asks to configure a configure a trunk port between fa0/6
and
> r6 fa1/0/0. It also states that you should not negotiate it via DTP.
> The solutions guide has the below solution
>
> Int fa0/6
> switchport trunk encapsulation dot1q
> switchport mode trunk
>
> Now the trunk will never negotiate via DTP because R6 cannot perform
> DTP. But I believe that sw1 will still try and send DTP frames to R6.
> If I use the switchport nonegotiate command it should turn off DTP on
R6.
> Should you also use the switchport nonegotiate command to turn off DTP
?
>
> Thanks in advance,
>
> Mike F.
>
>
> Rack1SW1#conf t
> Enter configuration commands, one per line. End with CNTL/Z.
> Rack1SW1(config)#int fa0/6
> Rack1SW1(config-if)#switchport trunk encapsulation dot1q
> 01:51:44: %LINEPROTO-5-UPDOWN: Line protocol on Interface
FastEthernet0/6,
> changed state to down
> 01:51:47: %LINEPROTO-5-UPDOWN: Line protocol on Interface
FastEthernet0/6,
> changed state to up
> Rack1SW1(config-if)#switchport mode trunk
> Rack1SW1(config-if)#end
> Rack1SW1#
>
> Rack1SW1#sh interfaces fa0/6 switchport
> Name: Fa0/6
> Switchport: Enabled
> Administrative Mode: trunk
> Operational Mode: trunk
> Administrative Trunking Encapsulation: dot1q
> Operational Trunking Encapsulation: dot1q
> Negotiation of Trunking: On <---- Looks like DTP is still on !!
> Access Mode VLAN: 1 (default)
> Trunking Native Mode VLAN: 1 (default)
> Voice VLAN: none
>
> Rack1SW1#conf t
> Enter configuration commands, one per line. End with CNTL/Z.
> Rack1SW1(config)#int fa0/6
> Rack1SW1(config-if)#switchport nonegotiate
> Rack1SW1(config-if)#end
> Rack1SW1#
>
> Rack1SW1#sh interfaces fa0/6 switchport
> Name: Fa0/6
> Switchport: Enabled
> Administrative Mode: trunk
> Operational Mode: trunk
> Administrative Trunking Encapsulation: dot1q
> Operational Trunking Encapsulation: dot1q
> Negotiation of Trunking: Off <---- Trunking is now OFF !!!
>
>
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