WG82574IT S LBAC Intel, WG82574IT S LBAC Datasheet - Page 204

• Manufacturer Part Number: WG82574IT S LBAC
• Description: CONTROLLER, ENET, INTEL 82574IT, 64PQFN
• Manufacturer: Intel

Specifications of WG82574IT S LBAC

• Ethernet Type: IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
• Supply Voltage Range: 3V To 3.6V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: QFN
• No. Of Pins: 64
• Package / Case: QFN
• Interface Type: I2C, JTAG, PCI, SPI
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8.4.3.2
Figure 46.
8.4.3.3
204
Packet to
Manageability Filtering
The manageability filtering stage combines some of the checks done at the previous
stages with additional L3/L4 checks into a final decision whether to route a packet to
the MC. The following sections describe the manageability filtering done at layers L3
and L4, followed by the final filtering rules.
Manageability Filtering (Receive)
L3 and L4 Filters
ARP filtering - The 82574L supports filtering of both ARP request packets (initiated
externally) and ARP responses (to requests initiated by the MC or host).
Neighbor discovery filtering - The 82574L supports filtering of neighbor solicitation
packets (type 135). Neighbor solicitation uses the IPv6 destination address filters
defined in the IP6AT registers (all enabled IPv6 addresses are matched for neighbor
solicitation).
MNG
receive filtering
This section is
YES
MNG2
HOST
YES
YES
part of the
general
start
YES
RCV_ALL
RCV_EN
MDEF0?
MDEF7?
Pass
Pass
YES
NO
Packet to
Broadcast
NO
HOST
NO
YES
packet
NO
NO
YES
VLAN filter
82574 GbE Controller—System Manageability
Pass
BAM=1
YES
MNG Filtering
(2)
Drop Packet
NO
NO