This is the result of a known issue. ARP broadcast traffic may not be sent to all interfaces configured for a VLAN on the BIG-IP WebAccelerator 4500 platform. When the VLAN is configured with multiple interfaces, TMM sends the ARP broadcast traffic out each interface configured for the VLAN in a loop. However, if an interface is not connected, the interface will return a link down error message, and TMM will stop sending the ARP broadcast traffic to the remaining interfaces.
F5 Networks Product Development is tracking this issue as CR100657. To monitor the status of this CR, refer to the BIG-IP WebAccelerator Release Notes.
Workaround
To ensure ARP broadcast traffic is sent to all interfaces configured for a VLAN on the BIG-IP WebAccelerator 4500 platform, all configured interfaces must be connected, and unconnected interfaces must be removed from the VLAN configuration. For information about configuring VLAN interfaces, refer the the BIG-IP Network and System Management Guide.
此问题在9.4.5中依然存在
