6 Networking
VRTX supports up to eight Ethernet connections on the back of the system. The Fabric A
infrastructure supports either a pass-through or a switch card installed in the back of the chassis.
These cards plug directly into the midplane.
Fabric A is limited by the following physical restraints:
Fabric A internal connections limited to four server nodes times four lanes, or 16 lanes total
Fabric A bulkhead space for external connection is limited to eight RJ45 connectors
Fabric A is limited to a single cold service card
For Fabric A, the M520 uses a quad-port 1GbE LOM. The M620 has a network daughtercard (NDC)
option for Fabric A that includes Broadcom and Intel cards.
Fabric A system management
The system management paradigm for Fabric A is non-redundant. A single SMBus, serial port or
Ethernet management fabric is presented to the CMC for Fabric A, including the pass-through mode
which is fabric redundant.
Fabric A pass-through cards
The 1GB Ethernet pass-through card is defined as having no single points of failure at the Ethernet
signal level. Maximum Ethernet signal pass-through is limited to eight lanes due to the bulkhead
limit of eight RJ45 connectors.
Figure 7.
Ethernet, GE or 10GE
Server 1
LOM A1
LOM A2
LOM A3
LOM A4
Server 2
LOM A1
LOM A2
LOM A3
LOM A4
Server 3
LOM A1
LOM A2
LOM A3
LOM A4
Server 4
LOM A1
LOM A2
LOM A3
LOM A4
18
PowerEdge VRTX Technical Guide
Fabric A Ethernet pass-through card configuration
Server
Midplane
Server 1 A1
Server 2 A1
Server 3 A1
Server 4 A1
Server 1 A2
Server 2 A2
Server 3 A2
Server 4 A2
Ethernet Fabric A Passthrough Card
Quad
Ethernet
Transceiver
Quad
Ethernet
Transceiver
Ethernet
Connection
Ethernet
Connection
Ethernet
Connection
Ethernet
Connection
Ethernet
Connection
Ethernet
Connection
Ethernet
Connection
Ethernet
Connection
Imprimer la page