82598EB Datasheet, PDF (482/596 Pages) Intel Corporation – Intel® 82598EB 10 Gigabit Ethernet Controller Datasheet

Intel^® 82598EB 10 GbE Controller - Overview
Control Traffic/Messages/Packets
Pass-Through Traffic/Messages/
Packets
Channel Arbitration
Logically Enabled/Disabled NC
NC RX
NC TX
NC-SI RX
NC-SI TX
Command, response and notification packets transmitted between MC and NCs for the
purpose of managing NC-SI.
Non-control packets passed between the external network and the MC through the NC.
Refer to operations where more than one of the network controller channels can be
enabled to transmit pass-through packets to the MC at the same time, where arbitration
of access to the RXD, CRS_DV, and RX_ER signal lines is accomplished either by software
of hardware means.
Refers to the state of the network controller wherein pass-through traffic is able/unable to
flow through the sideband interface to and from the management controller, as a result of
issuing Enable/Disable Channel command.
Defined as the direction of ingress traffic on the external network controller interface
Defined as the direction of egress traffic on the external network controller interface
Defined as the direction of ingress traffic on the sideband enhanced NC-SI Interface with
respect to the network controller.
Defined as the direction of egress traffic on the sideband enhanced NC-SI Interface with
respect to the network controller.
5.4.1.2 System Topology
In NC-SI each physical endpoint (NC package) can have several logical slaves (NC channels).
NC-SI defines that one management controller and up to four network controller packages can be
connected to the same NC-SI link.
Figure 5-10 shows an example topology for a single MC and a single NC package. In this example the
NC package has two NC channels.
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