ISTORE-1 Hardware Design (2)
Network
- primary data network
- hierarchical, highly-redundant switched Ethernet
- uses 16 20-port 100Mb switches at the leaves
- each brick connects to 4 independent switches
- root switching fabric is two ganged 25-port Gigabit switches (PacketEngines PowerRails)
- diagnostic network
- point-to-point CAN network connects bricks in a shelf
- Ethernet fabric described above is used for shelf-to-shelf communication
- console I/O from each brick can be routed through diagnostic network