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NE20E-S V800R010C10SPC500 Feature Description - VPN 01

This is NE20E-S V800R010C10SPC500 Feature Description - VPN
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Loop Detection Packet Format

Loop Detection Packet Format

Figure 14-3 shows the loop detection packet format.

Figure 14-3 Loop detection packet format

The meanings of the fields are as follows:

  • Destination MAC Address: destination MAC address
  • Source MAC Address: source MAC address
  • EthType: Ethernet type
  • VLAN Info: VLAN information
  • System MAC Address: system MAC address
  • FID: FID of a VLAN or VSI
  • Magicnum: index of an AC interface
  • Timestamp: timestamp for sending loop detection packets
  • vr id: ID of a virtual router
  • Domain Type: domain type
  • Inst-id: ID of an instance
A loop detection packet carries at most two VLAN tags (for example, in a QinQ VLAN tag termination scenario).
Updated: 2019-01-03

Document ID: EDOC1100055135

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