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JVV_137012's avatar
JVV_137012
Icon for Nimbostratus rankNimbostratus
Nov 06, 2013

Can one host/node be part of multiple VLANs?

This is not really an F5-specific question, but will help me clarify few VLAN/trunking concepts.   Q: Can one host/node be part of multiple VLANs? For example, on my Linux host if I exec the follo...
design
vlan
  • dathomas111_201's avatar
    dathomas111_201
    Nov 06, 2013

    Mulitple nics will put the host on multiple network segments which would each carry their respective vlan traffic. If the node is a VM host then a 802.1q trunk can carry multiple vlans to that host to be configured for different VM guest machines that require separate connectivity. The vlan tag you see at the interface level would be dependent on how the local switch (virtual or network) is delivering that connectivity to the host.

     

dathomas111_201's avatar
dathomas111_201
Icon for Altocumulus rankAltocumulus

Mulitple nics will put the host on multiple network segments which would each carry their respective vlan traffic. If the node is a VM host then a 802.1q trunk can carry multiple vlans to that host to be configured for different VM guest machines that require separate connectivity. The vlan tag you see at the interface level would be dependent on how the local switch (virtual or network) is delivering that connectivity to the host.

 

IheartF5_45022's avatar
IheartF5_45022
Icon for Nacreous rankNacreous
Nov 07, 2013
I'm not a Linux person but that looks as I would expect, however you would have to check with your VCentre (or equivalent) adminstartor to see how the port-profiles have been configured - to present 802.1q tags on a single interface as you seem to be expecting, or whether they present each VLAN as a separate interface? Also BTW 802.1q trunks are by no means the province of virtualised environments - they have been round for ever......