Functions - Huawei CX916 Product White Paper

Huawei CX916 Switch Module
White Paper

1.1 Functions

The CX916 is a switching control unit that provides data switching functionality for compute
nodes in the blade server chassis and centrally provides service and management ports to
connect to external devices. The Ethernet and FC switching planes of the CX916 are
physically isolated from each other and work independently.
The CX916 is installed in a rear slot of the E9000 chassis and is connected to compute nodes
and management modules through the chassis midplane. It exchanges internal data packets
and control and management packets through high-speed data transmission.
Table 1-1
functions of the FC switching plane.
Table 1-1 Functions of the Ethernet switching plane
Function
Ethernet features
Issue 01 (2017-10-12)
describes the functions of the Ethernet switching plane.
Ethernet
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Description
l Full-duplex and autonegotiation working
modes
l Ethernet ports support 10GE, 25GE, and
40GE.
NOTE
l Downlink ports connected to compute nodes
operate at 10GE. Uplink ports connected to
aggregation switches operate at 10GE, 25GE, or
40GE.
l 25GE ports support 25GE passive direct attached
cables, 25GE multi-mode or single-mode optical
modules, 10GE passive cables, and 10GE multi-
mode or single-mode optical modules.
l 40GE ports support multi-mode and single-mode
optical modules and passive cables. A 40GE port
can be split into four 10GE ports.
l Port traffic control
l Jumbo frames
l Link aggregation
l Load balancing among links of a trunk
l Port isolation and forwarding restriction
l Broadcast storm suppression
l 40GE port splitting
l 25GE ports can operate at 10GE.
l Protocol-based packet statistics
l M-LAG
1 Overview
Table 1-2 describes the
2