Quantities And Priorities - Dell PowerEdge M1000e Technical Manual

Dell
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Cisco® Virtual Blade Switch capability
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Ethernet Port Aggregator
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Virtualization of Ethernet ports for integration into any Ethernet fabric
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Fibre Channel products from Brocade and Emulex offering powerful connectivity to Dell/EMC
SAN fabrics
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High-availability clustering inside a single enclosure or between two enclosures
Each server module connects to traditional network topologies while providing sufficient bandwidth
for multi‐generational product lifecycle upgrades. I/O fabric integration encompasses networking,
storage, and interprocessor communications (IPC).
9.2

Quantities and Priorities

There are three supported high-speed fabrics per M1000e half‐height server module, with two
flexible fabrics using optional plug-in mezzanine cards on the server, and one connected to the LOMs
on the server. The ports on the server module connect via the midplane to the associated I/O
Modules (IOM) in the rear of the enclosure, which then connect to the customer's LAN/SAN/IPC
networks.
The optional mezzanine cards are designed to connect via 8-lane PCIe to the server module's chipset
in most cases. Mezzanine cards may have either one dual port ASIC with 4- or 8-lane PCIe interfaces
or dual ASICs, each with 4-lane PCIe interfaces. External fabrics are routed through high-speed, 10-
Gigabit-per-second–capable air dielectric connector pins through the planar and midplane. For best
signal integrity, the signals isolate transmit and receive signals for minimum crosstalk. Differential
pairs are isolated with ground pins and signal connector columns are staggered to minimize signal
coupling.
The M1000e system management hardware and software includes Fabric Consistency Checking,
preventing the accidental activation of any misconfigured fabric device on a server module. The
system will automatically detect this misconfiguration and alert the user of the error. No damage
occurs to the system, and the user will have the ability to reconfigure the faulted module.
M1000e I/O is fully scalable to current and future generations of server modules and I/O Modules.
There are three redundant multi‐lane fabrics in the system, as illustrated in Figure 33.
In its original configuration, the M1000e midplane is enabled to support up to four Gigabit Ethernet
links per server module on Fabric A. Thus, potential data bandwidth for Fabric A is 4 Gbps per half-
height server module. A future midplane upgrade may enable higher bandwidth on Fabric A.
The M1000e provides full 10/100/1000M Ethernet support when using Ethernet passthrough modules
enabling you to connect to any legacy infrastructure whether using Ethernet passthrough or switch
technology. This technical advance uses in-band signaling on 1000BASE‐KX transport and requires no
user interaction for enablement.
PowerEdge M1000e Technical Guide 41