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InterVLAN Routing

February 6th, 2017 Go to comments

Question 1

Question 2

Question 3

Explanation

To enabe encapsulation on a subinterface we have type the “encapsulation” command under that subinterface, not the main interface. An example of configuring encapsulation on subinterface of Fa0/1 is shown below:

Router(config)#interface f0/0
Router(config-if)#no shutdown

(Note: The main interface f0/0 doesn’t need an IP address but it must be turned on)

Router(config)#interface f0/0.0
Router(config-subif)#encapsulation dot1q 10
Router(config-subif)#ip address 192.168.1.1 255.255.255.0
Router(config-subif)#interface f0/0.1
Router(config-subif)#encapsulation dot1q 20
Router(config-subif)#ip address 192.168.2.1 255.255.255.0

Note: In the “encapsulation dot1q 10”, number 10 is the VLAN applied to that subinterface. Or you can understand that the subinterface belongs to that VLAN.

Question 4

Explanation

The causes of slow interVLAN are usually duplex mismatch or collision domain issues, user misconfiguration. For more information please read: http://www.cisco.com/c/en/us/support/docs/lan-switching/virtual-lans-vlan-trunking-protocol-vlans-vtp/23637-slow-int-vlan-connect.html#troubleshoot_slow_interv

Question 5

Question 6

Comments (2) Comments
  1. Ihab
    February 15th, 2017

    Is there any problem with question 2??

  2. Star
    February 20th, 2017

    @Ihab I don’t see any problem with Q2. Its perfectly fine..