The HP XC System Software supports the use of port trunking on the ProCurve
switches to create a higher bandwidth connection between the Root Administration
Switches and the Branch Administration Switches.
For physically small hardware models (such as a 1U HP ProLiant DL145 G1 server),
a large number of servers (more than 30) can be placed in a single cabinet,
and are all attached to a single branch switch. The branch switch is a ProCurve
Switch 2848, and two-port trunking is used for the connection between the
Branch Administration Switch and the Root Administration Switch.
For physically larger hardware models (2U and larger) such
the HP Integrity rx2600 and HP ProLiant DL585 G1 servers, a smaller number of servers
can be placed in a single cabinet. In this case, the branch switch is a ProCurve
Switch 2824, which is sufficient to support up to 19 nodes.
In this release, the HP XC System Software supports
the use of one-wire connections or two-wire trunks between the Root Administration
Switches and the Branch Administration Switches. The HP XC System Software supports the
use of a one-wire connection or up to an four-wire trunk; in most installations,
four-wire trunks are used.
You must configure trunks on both switches before plugging
the cables in between the switches. Otherwise, a loop is created between the
switches, and the network is rendered useless.
Trunking configurations on switches
must follow these guidelines:
Because
of the architecture of the ProCurve switch, the HP XC System Software uses only 10 ports
of each 12-port segment to ensure maximum bandwidth through the switch; the
last two ports are not used.
Trunk groups
must be contiguous.
Thus, by adhering to the trunking guidelines, the following
ports are used to configure a ProCurve 2848 Super Root Switch for three regions
using four-wire trunks:
Region 1 - Ports 1, 2, 3, 4
Region 2 - Ports 5, 6, 7, 8
Region 3 - Ports 13, 14, 15, 16
Ports 9, 10, 11, and 12 are not used
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