User's Manual

Virtual Connect networks 139
i. Click the selection box.
ii. Select a setting (100Mb to 20Gb):
Set preferred connection speed. This value is the default speed for server profile connections
mapped to this network. The server administrator can override this setting on an individual
profile connection.
Set maximum connection speed. This value is the maximum speed for server profile connections
mapped to this network. This speed limits the maximum port speed from the server to the network
connection associated with the multiple networks.
8. Click Apply. The shared uplink and associated networks are now defined and available for use in
creating server profiles.
Defining an FCoE network
Create an FCoE network by creating a Shared Uplink Set, and then adding an FCoE network to it. An FCoE
network cannot be added without a Shared Uplink Set.
Multi-hop and dual-hop FCoE support
Prior to the VC v4.01 release, VCM support of FCoE did not extend outside of the enclosure. All FCoE traffic
was converted to native FC prior to reaching VC interconnect uplinks. This required the interconnects to be
connected directly to a fibre channel switch.
Multi-hop and dual-hop configurations allows FCoE traffic to be sent from the enclosure to an external FCoE
switch, which handles the conversion of the FCoE traffic to FC traffic or forwards the traffic to the next hop.
In a dual-hop configuration, the FCoE switch must act as a bridge to the native FC infrastructure or connect
directly to an FC storage array or device. This results in two FCoE ‘hops’ between the server and the
conversion point. The first hop is between the server CNA and the VC Module. The second hop is between
the VC Module and the external FCoE switch. No additional FCoE switches can be added in this
configuration.
In a multi-hop configuration, additional FCoE switches can be added to extend the convergence beyond the
first FCoE switch. Be sure all FCoE switches between the initiator and target are configured to support a
multi-hop environment.
The following interconnect uplink ports support FCoE:
• VC FlexFabric modules:
o VC FlexFabric-20/40 F8 modules support FCoE on uplink ports Q1-Q4 and X1-X8.
o All other VC FlexFabric modules support FCoE on uplink ports X1-X4.
• VC Flex10/10D modules support FCoE on uplink ports X1-X10.
For more information on configuring FCoE switches and scenarios, see the FCoE Cookbook for HP Virtual
Connect in the Virtual Connect Information Library (http://www.hp.com/go/vc/manuals).
To see supported, compatible configurations with 3rd party storage components, use the HP Storage SPOCK
website (http://h20272.www2.hp.com/).
Guidelines
• No congestion notification (QCN) support is implemented. Only direct connections between VC
modules and external FCoE bridge ports are supported.
• Up to 32 FCoE networks can be associated with any single set of uplink ports.