VXLAN fragmentation

Created: Aug 16, 2019 09:09:34Latest reply: Aug 16, 2019 09:25:07 72 1 0 0
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Will the VXLAN ethernet frame be fragmented if it passes through an interface whose MTU is smaller the length of this frame?

  • x
  • convention:

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Popeye_Wang
Admin Created Aug 16, 2019 09:25:07 Helpful(0) Helpful(0)

The S5720HI does not support fragmenting packets that bigger than MTU, however the switchcan forward it.
By default, only packets on the controlplane can be fragmented according to the MTU on an interface. Packets on theforwarding plane can be forwarded normally without limitation by the MTU. When the remote device or intermediate forwarding device receives IP packets, if it checks the packet length and discards packets whose length is longer than the MTU on the interface, network communication will be interrupted. 
For the S5720HI, you can run the ipv4 fragment enable command to enable fragmentation for outgoing forwarding-plane IP packets so that packets on the forwarding plane will be fragmented based on the MTU on the interface.
  • x
  • convention:

All Answers
Popeye_Wang
Popeye_Wang Admin Created Aug 16, 2019 09:25:07 Helpful(0) Helpful(0)

The S5720HI does not support fragmenting packets that bigger than MTU, however the switchcan forward it.
By default, only packets on the controlplane can be fragmented according to the MTU on an interface. Packets on theforwarding plane can be forwarded normally without limitation by the MTU. When the remote device or intermediate forwarding device receives IP packets, if it checks the packet length and discards packets whose length is longer than the MTU on the interface, network communication will be interrupted. 
For the S5720HI, you can run the ipv4 fragment enable command to enable fragmentation for outgoing forwarding-plane IP packets so that packets on the forwarding plane will be fragmented based on the MTU on the interface.
  • x
  • convention:

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