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Are the L3 extreme switches compatible with Variable Length Subnet Masking (VLSM)?

  • 1.  Are the L3 extreme switches compatible with Variable Length Subnet Masking (VLSM)?

    Posted 11-16-2017 16:41
    Are the L3 extreme switches compatible with Variable Length Subnet Masking (VLSM)?


  • 2.  RE: Are the L3 extreme switches compatible with Variable Length Subnet Masking (VLSM)?

    Posted 11-16-2017 16:55
    Yes, you can use standard CIDR notation (eg, 10.0.20.1/23) when configuring IP addresses on the switch..


  • 3.  RE: Are the L3 extreme switches compatible with Variable Length Subnet Masking (VLSM)?

    Posted 11-17-2017 08:32
    Hi,

    the VLSM idea is from times back when classful IP routing was used. Old routing protocols did not send a subnet mask with the network address. But all modern routing protocols (including RIPv2 which is not really modern) include a network mask (or prefix length) and fully support CIDR (classless inter-domain routing) which includes all the features associated with VLSM (variable length subnet masks).

    Extreme switches and routing protocols support classless IP routing by default.

    Thanks,
    Erik


  • 4.  RE: Are the L3 extreme switches compatible with Variable Length Subnet Masking (VLSM)?

    Posted 11-16-2017 16:55
    Ok, thanks for reply.


  • 5.  RE: Are the L3 extreme switches compatible with Variable Length Subnet Masking (VLSM)?

    Posted 11-17-2017 08:32
    Ok, very thanks for explanation.