HP ProCurve 9304M Installation And Configuration Manual page 94

Installation and Basic Configuration Guide
Figure 4.4 TSP allocations for example configuration 2
MP = Management Processor
TSP = T-Flow Switching Processor
TSPTSPTSPTSPTSPAs in the previous example, the device starts with the first sequential highest-weight
module, in this case the 8-port Gigabit module in slot 3, and allocates that module to 1. As shown in this example,
the resulting distribution is fairly even among the three CPUs.
Displaying the Slot Allocations for the TSPs
To display the allocations, enter the show vm-map command. See "Determining the Slot Allocations for the
TSPs" on page 4-14.
Changing Slot Allocations
The default allocations are applicable to almost all configurations. However, you can remap a module to another
TSP CPU. To do so, enter a command such as the following at the global CONFIG level of the CLI:
HP9300(config)# vm vm-map slot 3 vm-slot 2 vm-cpu 1
This command remaps processing for the modules in slot 3 to TSP CPU 1 on the T-Flow in slot 2.
Syntax: vm vm-map <from-slotnum> vm-slot <to-slotnum> vm-cpu <cpunum>
The <from-slotnum> parameter specifies the slot that contains the forwarding module.
The <to-slotnum> parameter specifies the slot that contains the T-Flow.
The <cpunum> parameter specifies the VSM CPU on <to-slotnum> that will perform the processing. The VSM
CPUs are numbered from 1 – 3.
TSPTSP Load Sharing on a Per-DMA Basis
4
Starting in release 07.6.04, the T-Flow supports TSP load sharing on a per-DMA basis. You can configure the T-
Flow to use either per-module or per-DMA TSP load sharing, and you can statically assign ports or slots to
individual TSPs.
In releases prior to 07.6.04, the T-Flow module distributes the load to the TSPs on a per-module basis. When the
HP device is powered on or reset, the T-Flow assigns each of the forwarding modules to a TSP.
In release 07.6.04, the T-Flow can distribute the load to the TSPs on a per-DMA basis. DMAs are packet
processors that control ports on Ethernet modules. Ethernet modules have multiple DMAs, each controlling a set
of ports on the module. For example, a Standard (non-EP) 8-port Gigabit Ethernet module has four DMAs, each
controlling two ports. The following diagram illustrates the relationship between ports and DMAs on a Standard 8­
port Gigabit Ethernet module.
4 - 6
MP
TSP 1
Slot 3 Wt 80
-------------------
80
TSP 2
TSP 3
Slot 6 Wt 40
Slot 1 Wt 24
Slot 5 Wt 24
Slot 2 Wt 24
Slot 8 Wt 24 Slot 7 Wt 24
-------------------
-------------------
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