Configuration Notes and Feature Limitations for IPv6 MTU

  • The IPv6 MTU functionality is applicable to VEs and physical IP interfaces. It applies to traffic routed between networks.
  • For ICX 7850 devices, the maximum MTU value is 9380 bytes in jumbo mode. For all other ICX devices, the IPv4 and IPv6 MTU values are the same. Modifying one also changes the value of the other.
  • For all ICX devices, the minimum IPv4 and IPv6 MTU values for both physical and virtual interfaces are 1280.
  • You cannot use IPv6 MTU to set Layer 2 maximum frame sizes per interface. Enabling global jumbo mode causes all interfaces to accept Layer 2 jumbo frames.
Parent topic: IPv6 MTU