ServerNet Cluster Web

all—single-mode fiber PICs. The NNA FPGA is installed only in the single-mode fiber
PIC of port 6 of the MSEB installed in slots 51 and 52 of group 01. The NNA modifies
the ServerNet ID for each ServerNet packet entering or exiting the external
ServerNet fabrics.
How does the NNA modify ServerNet packets for delivery over the external
ServerNet fabrics? All ServerNet packets destined for other nodes in a cluster
must pass through port 6 of the MSEB in slot 51 or 52 of the group 01 enclosure. As
each packet passes through the PIC in port 6, the NNA FPGA modifies the source
ServerNet ID (SID), replacing the default ServerNet node routing ID with a node
routing ID that can be used on the external ServerNet fabrics. The modified
ServerNet packet traverses the external fabric (X or Y) unchanged until it arrives at
its destination node. At the destination node, the NNA FPGA modifies the destination
ServerNet ID (DID), replacing the ServerNet node-routing ID with the default node
routing ID.
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OSM and TSM
Which service management software do I need to manage a
ServerNet cluster with one of the star topologies? The TSM software
is required. For the specific SPRs, see the ServerNet Cluster Manual.
Which service management software do I need to manage a
ServerNet cluster using the layered topology? The OSM software in
the G06.22 or later RVU is required. For the specific client-based and
server-based SPRs for OSM, see the OSM Migration Guide.
You cannot use TSM to manage a cluster using the layered topology.
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Plug-in Cards (PICs)
What is a PIC? A PIC, or plug-in card, is a subcomponent of an MSEB, ServerNet
II Switch, or 6780 switch. PICs provide a choice of connection media for attaching
cables.
PICs installed in ports 0 through 7 of each ServerNet II Switch are
single-mode fiber PICs. They are used for connections to the
ServerNet nodes.
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PICs installed in port 6 of the MSEBs in group 01 (slots 51 and 52) of
each node are single-mode fiber PICs that contain the
node-numbering agent (NNA) field programmable gate array (FPGA).
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PICs installed in slots 2 and 3 of each 6780 Switch can contain either
single-mode fiber transceivers or multimode fiber transceivers. They
are used for connections between zones in the layered topology.
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PICs installed in slots 6 through 9 of each 6780 Switch are used for
connections to the ServerNet nodes in the layered topology.
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PICs installed in slots 11 through 13 of each 6780 Switch are used
for connections between layers in the layered topology.
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Click below to view a sample PIC