From: sathappan sathappan (sathappan2003@gmail.com)
Date: Mon May 19 2008 - 00:21:43 ART
Dear Ananth,
I have studied the concept of private vlans already. My question is whether
I will lose points if I remove the configuration switch port access vlan 28,
for the pricate vlan configuration.
with thanks and regards
sathappan
On 5/18/08, A.G. Ananth Sarma (GMail) <ananth.sarma@gmail.com> wrote:
>
> Dear Sathappan,
>
> Look at this cisco links:
>
>
> http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.1E/native/configuration/guide/pvlans.html
>
>
> http://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/12.2_44_se/configuration/guide/swpvlan.html
>
>
> *This example shows how to configure an interface as a private-VLAN host
> port, associate it with a private-VLAN pair, and verify the configuration:
> *
>
> Switch# *configure terminal*
>
> Switch(config)# *interface fastethernet0/22*
>
> Switch(config-if)# *switchport mode private-vlan host*
>
> Switch(config-if)# *switchport private-vlan host-association 20 25*
>
> Switch(config-if)# *end*
>
> Switch# *show interfaces fastethernet0/22 switchport*
>
> Name: Fa0/22
>
> Switchport: Enabled
>
> Administrative Mode: private-vlan host
>
> Operational Mode: private-vlan host
>
> Administrative Trunking Encapsulation: negotiate
>
> Operational Trunking Encapsulation: native
>
> Negotiation of Trunking: Off
>
> Access Mode VLAN: 1 (default)
>
> Trunking Native Mode VLAN: 1 (default)
>
> Administrative Native VLAN tagging: enabled
>
> Voice VLAN: none
>
> Administrative private-vlan host-association: 20 (VLAN0020) 25 (VLAN0025)
>
> Administrative private-vlan mapping: none
>
> Administrative private-vlan trunk native VLAN: none
>
> Administrative private-vlan trunk Native VLAN tagging: enabled
>
> Administrative private-vlan trunk encapsulation: dot1q
>
> Administrative private-vlan trunk normal VLANs: none
>
> Administrative private-vlan trunk private VLANs: none
>
> Operational private-vlan:
>
> 20 (VLAN0020) 25 (VLAN0025
>
> They do not mention about explictly removing the line "switchport access
> vlan 28".
>
> I feel that once you enter "Switch(config-if)# *switchport mode
> private-vlan host" *command, it will recognize it automatically.
>
> I am unable to lab it as I do not have a 3560 switch with me right now.
>
> HTH,
>
> Ananth
>
> On Sun, May 18, 2008 at 8:13 PM, sathappan sathappan <
> sathappan2003@gmail.com> wrote:
>
>> Hi GS,
>>
>>
>> I am working on my multiprotocol labs. I need a clarification on
>> configuring
>> private vlans.
>> first task asks me to configure one port in vlan 28.
>>
>> My configuration will be as follows.
>>
>> *interface FastEthernet0/7
>> switchport access vlan 28*
>> * switchport mode access*
>>
>> the subsequent task asks me to configure it as private vlan isolated with
>> vlans 28 281.
>>
>>
>> My question is whether I should retain the "switchport access vlan 28"
>> which
>> I configured for the first task or should I remove the command for
>> enabling
>> private vlan.
>>
>> *interface FastEthernet0/7
>> switchport access vlan 28
>> switchport private-vlan host-association 28 281
>> switchport mode private-vlan host
>> spanning-tree portfast
>> spanning-tree bpduguard enable*
>>
>>
>>
>> please guide me
>>
>>
>> with thanks
>> sathappan
>>
>>
>> _______________________________________________________________________
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