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Ethernet Frame Counts and Statistics on MX Series Routers

The following considerations apply to Ethernet frame counts and statistics on Juniper Networks MX Series 5G Universal Routing Platforms:

  • Interface counters do not include the 7-byte Ethernet frame preamble and the frame delimiter byte.

  • In Media Access Control (MAC) statistics. the frame size includes the MAC header and cyclical redundancy check (CRC) before any VLAN rewrite or other rules are applied.

  • In traffic statistics, the frame size includes the Layer 2 header without the trailer CRC and after any VLAN rewrite or other rules are applied.

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