Common Layer 2 Issues and Best Practices :-

 1.BIG-IP unable to reach all three Nodes – 172.16.10.1, 172.16.20.2 and 172.16.30.3. All nodes are in a different VLAN. Physical connection from the BIG-IP to the switch is working properly.

2. BIG-IP able to reach all Nodes except 172.16.20.2. All nodes are in a different VLAN. Physical connection from the BIG-IP to the switch is working properly.

3. You verified that PC and Server MAC address both has entry in the MAC Table. But you don’t see both entries in the ARP Table. What causes this is issue?

4.You just recently setup a BIG-IP Active/Standby pair. What feature do you need to enable to optimize BIG-IP High Availability?

5.You verified that PC and Server MAC address both has entry in the MAC Table. But you don’t see both entries in the ARP Table. What causes this is issue?

Common Layer 2 Issues and Best Practices :-

▰ VLAN misconfiguration

▰ 802.1Q/Tagging misconfiguration

▰ Verify ARP Resolution on BIG-IP and neighboring device

 ▰ Verify Interface Status and configuration

▰ Enable MAC Masquerading in a HA pair

 ▰ Documentation