Vlan question on Catalyst 2900 XL

Discussion in 'Cisco' started by Rob, Apr 10, 2006.

  1. Rob

    Rob Guest

    Hi,
    Does anyone know how I can make sure that I created .q1 vlan and not isl. I
    used:
    switchport trunk encapsulation dot1q

    and that one was the only place I used dot1q insted isl in my configuation.
    I am creating Vlan 832 as the legacy (untagged) and 911 as the tagged one
    both should be .1q. and now if I look at the settings I have:

    VLAN Name Status Ports
    ---- -------------------------------- --------- ----------------------------
    ---
    1 default active Fa0/2, Fa0/3, Fa0/4, Fa0/5,
    Fa0/6, Fa0/7, Fa0/8, Fa0/9,
    Fa0/10, Fa0/11, Fa0/12,
    Fa0/13,
    Fa0/14, Fa0/15, Fa0/16,
    Fa0/20,
    Fa0/22, Fa0/23, Fa0/24
    832 VLAN0832 active Fa0/18
    911 VLAN0911 active Fa0/19
    1002 fddi-default active
    1003 token-ring-default active
    1004 fddinet-default active
    1005 trnet-default active

    VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1
    Trans2
    ---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ----
    --
    1 enet 100001 1500 - - - - - 1002 1003
    832 enet 100832 1500 - - - - - 0 0
    911 enet 100911 1500 - - - - - 0 0
    1002 fddi 101002 1500 - - - - - 1 1003
    1003 tr 101003 1500 1005 0 - - srb 1 1002
    1004 fdnet 101004 1500 - - 1 ibm - 0 0
    1005 trnet 101005 1500 - - 1 ibm - 0 0

    Switch#vlan database
    Switch(vlan)#sho
    VLAN ISL Id: 1
    Name: default
    Media Type: Ethernet
    VLAN 802.10 Id: 100001
    State: Operational
    MTU: 1500
    Translational Bridged VLAN: 1002
    Translational Bridged VLAN: 1003

    VLAN ISL Id: 832
    Name: VLAN0832
    Media Type: Ethernet
    VLAN 802.10 Id: 100832
    State: Operational
    MTU: 1500

    VLAN ISL Id: 911
    Name: VLAN0911
    Media Type: Ethernet
    VLAN 802.10 Id: 100911
    State: Operational
    MTU: 1500

    Can Someone tell me if i did it right? and if I should do anything else?
    Thanks-Rob
     
    Rob, Apr 10, 2006
    #1
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  2. Rob

    Merv Guest

    Clarification - it is not the VLAN to which 802.1Q applies - it is to
    trunks


    You can use the command "show interface <interface> switchport
    to see whether a trunk is configured for .1q trunking



    #sh int po1 switchport
    Name: Po1
    Switchport: Enabled
    Administrative Mode: trunk
    Operational Mode: trunk
    Administrative Trunking Encapsulation: dot1q
    Operational Trunking Encapsulation: dot1q
    Negotiation of Trunking: On
    Access Mode VLAN: 1 (default)
    Trunking Native Mode VLAN: 1 (default)
    Voice VLAN: none
    Administrative private-vlan host-association: none
    Administrative private-vlan mapping: none
    Administrative private-vlan trunk native VLAN: none
    Administrative private-vlan trunk encapsulation: dot1q
    Administrative private-vlan trunk normal VLANs: none
    Administrative private-vlan trunk private VLANs: none
    Operational private-vlan: none
    Trunking VLANs Enabled: 2200-2399
    Pruning VLANs Enabled: 2-1001


    Voice VLAN: none (Inactive)
    Appliance trust: none
     
    Merv, Apr 10, 2006
    #2
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