|Article Number: 530700||Article Version: 3||Article Type: Break Fix|
VPLEX Series,VPLEX VS2,VPLEX VS6,VPLEX Local,VPLEX Metro,VPLEX GeoSynchrony 5.5,VPLEX GeoSynchrony 5.5 Patch 1,VPLEX GeoSynchrony 5.5 Service Pack 1,VPLEX GeoSynchrony 5.5 Service Pack 1 Patch 1,VPLEX GeoSynchrony 5.5 Service Pack 1 Patch 2
Impacted VPLEX Hardware:
EMC Hardware: VPLEX Series
EMC Hardware: VPLEX VS2
EMC Hardware: VPLEX VS6
EMC Hardware: VPLEX-Local
EMC Hardware: VPLEX-Metro
Impacted VPLEX GeoSynchrony code versions:
EMC Software: GeoSynchrony 5.X
EMC Software: GeoSynchrony 6.X
The VPLEX VS6 and VS2 are left configured on the same VLAN (post-GenU, or for whatever other reason)
Disable LLDP forwarding on the switch-ports to which the VPLEX WAN-COM ports are connected to.
If the TCPdump captures from the VS6 WAN-COM ports are reviewed, you may observe that the MAC (Media Access Control) address of the origin of the LLDP frames is 1 more than the MAC address of the IP WAN-COM port. This is because the VS6 WAN-COM ports utilize the Broadcom OneConnect OCe14000 Series adapters as their NIC which is capable of having 128 MAC/VLAN addresses per port. This should avoid any confusion as to the origins of the LLDP frames. For example, consider the following MAC address of a VPLEX IP WAN-COM port;
The source MAC address from the TCP dumps would report the address as 00:11:22:33:44:a1 (notice that the source address is the mac-address + 1).
Another example for consideration;
The TCP dumps reports would reveal the source mac-address as 00:11:22:33:44:a2 (mac-address + 1).
The VS2 WAN-COM ports run Heatwave EP8112 NIC firmware which does not have a feature to disable LLDP. The only option provided by Qlogic is to disable LLDP on the switch.