Changes between Version 1 and Version 2 of Internal/OpenFlow/Notes


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Timestamp:
Jul 2, 2009, 3:11:10 AM (15 years ago)
Author:
akoshibe
Comment:

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  • Internal/OpenFlow/Notes

    v1 v2  
    2020
    2121== Native VLANs ==
    22 Normally the 4 byte addition to the Ethernet frame would cause the tagged frame to be rejected on a VLAN, and regular frames would be rejected if found in the trunk due to the lack of a tag. This is unless the "regular" frame is from a '' native VLAN '' assigned to the trunk. '' More on Native VLANs once I get some research done. ''
     22Normally the 4 byte addition to the Ethernet frame would cause the tagged frame to be rejected on a VLAN, and regular frames would be rejected if found in the trunk due to the lack of a tag. This is unless the "regular" frame is from a '' native VLAN '', whose frames are intended not to have tags for devices that don't understand tagging. 
     23
     24A site explaining what a native vlan is: http://networkers-online.com/blog/2008/06/native-vlan-explained/
    2325
    2426In our case this matters because DHCP coming from the trunk needs to assign IP addresses to both the hosts connected to the switch on different VLANs (VLAN 27) and to the switch itsself. To do this, The virtual interface to which the IP address is assigned needs to be on the trunked port(s).