HP Virtual Connect 1.10Gb-F Ethernet Module for c-Class BladeSystem - Manual (Page 46)

Installation 46
• Selected port on that module
Port status indicators can be used to locate a specific port or to provide additional status.
Following is an example of simple network mapping, where the Virtual Connect enclosure is named
Enclosure1 and Virtual Connect Ethernet modules are in interconnect module bays 1 and 2.
Network Uplink port
Production_Network Enclosure1:Bay1:PortX2
Dev_Network Enclosure1:Bay1:Port4
Backup_Network Enclosure1:Bay2:Port3
iSCSI_Storage_Network Enclosure1:Bay2:PortX2
In this case, the Ethernet packets are passed unchanged between the server blades and the external
networks. Any VLAN tags added by the server or external switch are ignored and pass through the Virtual
Connect Ethernet modules.
Mapping a single network to multiple uplinks (uplink port set)
A single network can be mapped to more than one external uplink port to provide improved throughput
and availability, referred to as an uplink port set. Review the following guidelines before mapping a
single network to an uplink port set:
• External uplink ports within an uplink port set can be on the same Virtual Connect Ethernet module or
on multiple Virtual Connect Ethernet modules within the Virtual Connect domain.
• Cables can be connected to one or more data center Ethernet switches.
• When multiple external uplink ports are used for the same network, the Virtual Connect Ethernet
modules provide automatic loop prevention by allowing for a single active link or link set at any one
time.
• The Virtual Connect system automatically chooses the uplink (ports) that optimize throughput and
availability. Where possible, links within the uplink port set automatically form a link aggregation
group using LACP. This action requires multiple uplink ports on a single Virtual Connect Ethernet
module to be connected to an external switch that is capable and configured to form link
aggregation groups using LACP.