Vxlan Ip Gateway Commands; Arp Distributed-Gateway Dynamic-Entry Synchronize - H3C MSR 5600 Comware 7 Vxlan Command Reference

For an Ethernet frame destined for the local site, the VTEP adds 802.1Q VLAN tags to the
frame before forwarding the frame.
In VLAN access mode, VXLAN packets sent between VXLAN sites do not contain 802.1Q
VLAN tags. VXLAN can provide Layer 2 connectivity for different 802.1Q VLANs between sites.
You can use different 802.1Q VLANs to provide the same service in different sites.
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Ethernet access mode—The VTEP does not process the 802.1Q VLAN tags of Ethernet
frames received from or sent to the local site.
For an Ethernet frame received from the local site, the VTEP forwards the frame with the
802.1Q VLAN tags intact.
For an Ethernet frame destined for the local site, the VTEP forwards the frame without
adding 802.1Q VLAN tags.
In Ethernet access mode, VXLAN packets sent between VXLAN sites contain 802.1Q VLAN
tags. VXLAN cannot provide Layer 2 connectivity for different 802.1Q VLANs between sites.
You must use the same 802.1Q VLAN to provide the same service between sites.
After you modify the access mode on a Layer 3 subinterface AC, local VMs that access the VXLAN
network through the subinterface cannot communicate with remote VMs. To resolve this issue, you
must clear the ARP entries on the local VMs or configure them to periodically send gratuitous ARP
packets.
Examples
# Map GigabitEthernet 1/0/1 to VSI vpn1.
<Sysname> system-view
[Sysname] vsi vpn1
[Sysname-vsi-vpn1] quit
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] xconnect vsi vpn1
Related commands
display l2vpn interface
display l2vpn service-instance
encapsulation
vsi

VXLAN IP gateway commands

arp distributed-gateway dynamic-entry synchronize

Use arp distributed-gateway dynamic-entry synchronize to enable dynamic ARP
entry synchronization for distributed VXLAN IP gateways.
Use undo arp distributed-gateway dynamic-entry synchronize to disable dynamic
ARP entry synchronization for distributed VXLAN IP gateways.
Syntax
arp distributed-gateway dynamic-entry synchronize
undo arp distributed-gateway dynamic-entry synchronize
Default
Dynamic ARP entry synchronization is disabled for distributed VXLAN IP gateways.
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