... | ... | @@ -13,30 +13,28 @@ The Utah Emulab cluster has 160 PC nodes (**pc401-pc560**) consisting of: |
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### Switch Configuration
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All interfaces on these machines will be connected to gigabit ports on
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All interfaces on these machines are connected to gigabit ports on
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[ProCurve 5412zl</span>](http://www.procurve.com/products/switches/HP_ProCurve_Switch_5400zl_Series/overview.htm)
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switches (specifically, J8702A modules). There will be three new
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switches (specifically, J8702A modules). There are three new
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experimental-net switches (**procurve3-procurve5**) for these nodes, each
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with approximately 240 ports. A fourth new switch (**procurve1**) will act
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with approximately 240 ports. A fourth new switch (**procurve1**) acts
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as the center of a 'hub and spoke' topology for the experimental network:
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it will be connected to the new switches and to the existing gigabit switch
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it is connected to the new switches and to the existing gigabit switch
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(**cisco8**) at 24.4 Gbps each, and to the existing 100Mbps switches using
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4Gbps to 8Gbps trunks.
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Most new nodes will have 4 experimental-net interfaces, as our current PCs
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do, but some will have 5. In contrast to our existing nodes, which mostly
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connect all of their interfaces to a single experimental-net switch, the
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new nodes will have their interfaces 'striped' across the new switches:
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each new PC will have at least one interface on each of the three new
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switches, so that large LANs can be constructed of all new nodes, without
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having to use any inter-switch bandwidth. The tentative layout is:
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Most nodes have 4 experimental-net interfaces, but some have 5.
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The d710 nodes have their interfaces 'striped' across the switches:
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each PC has at least one interface on each of the three
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switches, so that large LANs can be constructed of all nodes, without
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needing to use any inter-switch bandwidth. The layout is:
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* **pc401**-**pc440**: 4 interfaces: 2 x **procurve3**, 1 x **procurve4**, 1 x **procurve5**
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* **pc441**-**pc480**: 4 interfaces: 1 x **procurve3**, 2 x **procurve4**, 1 x **procurve5**
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* **pc481**-**pc520**: 4 interfaces: 2 x **procurve3**, 1 x **procurve4**, 1 x **procurve5**
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* **pc521**-**pc560**: 5 interfaces: 1 x **procurve3**, 2 x **procurve4**, 2 x **procurve5**
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A fifth new switch (**procurve2**) will act as the control network for the new nodes.
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A fifth switch (**procurve2**) acts as the control network for the nodes.
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### Images and Kernel Support
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