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eos_designs: WAN default mtu should be set to 9194 #4338

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ClausHolbechArista opened this issue Aug 9, 2024 · 0 comments · Fixed by #4415
Closed

eos_designs: WAN default mtu should be set to 9194 #4338

ClausHolbechArista opened this issue Aug 9, 2024 · 0 comments · Fixed by #4415
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@ClausHolbechArista
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The internal max IP MTU for CloudEOS is 9194 to give a max frame size of 9216 for DPDK.
Using higher MTU will lead to performance penalty because of fragmentation.

AVD should use 9194 as the default MTU on

  • Dps1
  • LAN Uplink interfaces
  • LAN HA interfaces

Update release-notes and porting guide - porting guide would have to suggest structured config to retain old value on Dps1 and LAN HA (no MTU currently which is bad).

@ClausHolbechArista ClausHolbechArista changed the title eos_designs: WAN efault mtu should be set to 9194 eos_designs: WAN default mtu should be set to 9194 Aug 9, 2024
@ClausHolbechArista ClausHolbechArista added this to the v5.0.0 milestone Aug 9, 2024
@MaheshGSLAB MaheshGSLAB self-assigned this Aug 22, 2024
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