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VTP

January 5th, 2010 No comments

• Configure all inter-switch links on SW2, SW3, and SW4 to be in dynamic
auto state.
• Configure all inter-switch links on SW1 to be in dynamic desirable state.
• Configure SW2 as a VTP server in the domain VTP.
• Configure SW1, SW3, and SW4 as VTP clients in the domain VTP.

SW1:
vtp domain VTP
vtp mode client
!
interface range FastEthernet0/13 - 21
switchport mode dynamic desirable
!
interface FastEthernet0/1
switchport access vlan 146
!
interface FastEthernet0/5
switchport access vlan 58

 

SW2
vtp domain VTP
vlan 5,7,8,9,10,22,43,58,67,79,146
!
interface FastEthernet0/2
switchport access vlan 22
!
interface FastEthernet0/4
switchport access vlan 43
!
interface FastEthernet0/6
switchport trunk encapsulation dot1q
switchport mode trunk
!

 

Categories: Uncategorized Tags:

802.1q Native VLAN

January 5th, 2010 No comments

Modify the native VLAN on the 802.1q trunks of SW1 so that traffic between devices in VLAN 146 is not tagged when sent over the trunk links.

SW1(config)#int range Fa0/13 - 21
SW1(config-if-range)#switchport trunk native vlan 146
SW2(config)#int range Fa0/13 - 21
SW2(config-if-range)#switchport trunk native vlan 146
SW3(config)#int range Fa0/13 - 21
SW3(config-if-range)#switchport trunk native vlan 146
SW4(config)#int range Fa0/13 - 21
SW4(config-if-range)#switchport trunk native vlan 146

 

Verification:

SW1#sh int trunk
Port        Mode         Encapsulation  Status        Native vlan
Fa0/13      desirable    802.1q         trunking      146
Fa0/14      desirable    802.1q         trunking      146
Fa0/15      desirable    802.1q         trunking      146
Fa0/16      desirable    802.1q         trunking      146
Fa0/17      desirable    802.1q         trunking      146
Fa0/18      desirable    802.1q         trunking      146
Fa0/19      desirable    802.1q         trunking      146
Fa0/20      desirable    802.1q         trunking      146
Fa0/21      desirable    802.1q         trunking      146

 

SW2#sh int trunk
Port        Mode         Encapsulation  Status        Native vlan
Fa0/6       on           802.1q         trunking      1
Fa0/13      auto         n-802.1q       trunking      146
Fa0/14      auto         n-802.1q       trunking      146
Fa0/15      auto         n-802.1q       trunking      146

 

SW3#sh int trunk
Port        Mode         Encapsulation  Status        Native vlan
Fa0/13      auto         n-802.1q       trunking      146
Fa0/14      auto         n-802.1q       trunking      146
Fa0/15      auto         n-802.1q       trunking      146

 

SW4#sh int trunk
Port        Mode         Encapsulation  Status        Native vlan
Fa0/13      auto         n-802.1q       trunking      146
Fa0/14      auto         n-802.1q       trunking      146
Fa0/15      auto         n-802.1q       trunking      146

 

Categories: IT, Networking, Switching, Uncategorized Tags:

ISL Trunking

January 4th, 2010 No comments

Statically set the trunking encapsulation of SW1’s inter-switch links to ISL.

SW1(config)#int ra fa 0/13 - 21
SW1(config-if-range)#switchport trunk encapsulation isl 

 

Verify that SW2, SW3, & SW4 are negotiating ISL as the trunking encapsulation to SW1, and that SW1 is not negotiating ISL to SW2, SW3,and SW4.

SW1#sh int trunk 
Port        Mode         Encapsulation  Status        Native vlan
Fa0/13      desirable    isl            trunking      1
Fa0/14      desirable    isl            trunking      1
Fa0/15      desirable    isl            trunking      1
Fa0/16      desirable    isl            trunking      1
Fa0/17      desirable    isl            trunking      1
Fa0/18      desirable    isl            trunking      1
Fa0/19      desirable    isl            trunking      1
Fa0/20      desirable    isl            trunking      1
Fa0/21      desirable    isl            trunking      1

 

SW2#sh int trunk
Port        Mode         Encapsulation  Status        Native vlan
Fa0/6       on           802.1q         trunking      1
Fa0/13      auto         n-isl          trunking      1
Fa0/14      auto         n-isl          trunking      1
Fa0/15      auto         n-isl          trunking      1

SW3#sh int trunk
Port        Mode         Encapsulation  Status        Native vlan
Fa0/13      auto         n-isl          trunking      1
Fa0/14      auto         n-isl          trunking      1
Fa0/15      auto         n-isl          trunking      1

SW4#sh int trunk
Port        Mode         Encapsulation  Status        Native vlan
Fa0/13      auto         n-isl          trunking      1
Fa0/14      auto         n-isl          trunking      1
Fa0/15      auto         n-isl          trunking      1

 

Categories: Uncategorized Tags: