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Notable Replies

  1. You have a very unique way of explaining, Clear and direct to the point. I am very grateful.
    Thank you

  2. rxpc says:

    I was reading an article that mentioned a VLAN must not be tagged twice. When do we say the VLAN is tagged? If on cisco I use command vlan 30 name test. Than it just creates a pass thru vlan - this should not be tagging. If I assign an interface to it and give an IP address, is that called tagging? or If I just mention interface vlan 30 description test --- is this the tagging. To summarize:

    vlan 30

    name Test Is this tagging

    interface vlan 30

    description TEST Is this tagging

    config gi0/1

  3. rxpc says:

    in continuation to previous mail:

    config int gi0/1
    swtichport mode access vlan 30 Is this tagging?

  4. Abhishek,
    This question can't be answered generically. How you configure the switchport is entirely dependent on your environment and what you are trying to do. It could be either an access layer port or a trunk port.

    The more interesting of the two cases would be when you have multiple VLANs, and you are using the router as a "Router on a stick." In the example below, we are using two VLANs, 2 (data) and 3 (phones).

    Router Config (partial)

    interface GigabitEthernet0/0.2
     description DATA
     encapsulation dot1Q 2
     ip address 10.10.2.254 255.255.255.0
    !
    interface GigabitEthernet0/0.3
     description PHONES
     encapsulation dot1Q 3
     ip address 10.10.3.254 255.255.255.0

    Switch Config (partial)

    vlan 2
     name DATA
    !
    vlan 3
     name PHONES
    !
    interface GigabitEthernet0/3
     description Connection-To-Router-Gig0/0
     switchport trunk allowed vlan 2,3
     switchport mode trunk
  5. Thanks Awesome really appropriate you effort.

    1) SwitchA(config)#interface fa0/14
    2) SwitchA(config-if)#switchport mode dynamic auto

    3) SwitchA(config)#interface fa0/14
    4) SwitchB(config-if)#switchport mode dynamic auto

    In the above need very small correction NO 3 should be SwitchB

    SwitchB(config)#interface fa0/14

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