WG82574L S LBA8 Intel, WG82574L S LBA8 Datasheet - Page 138
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WG82574L S LBA8
Manufacturer Part Number
WG82574L S LBA8
Description
Manufacturer
Intel
Datasheet
1.WG82574L_S_LBA8.pdf
(472 pages)
Specifications of WG82574L S LBA8
Operating Supply Voltage (typ)
3.3V
Operating Temp Range
0C to 85C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
64
Lead Free Status / RoHS Status
Compliant
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Table 35.
7.1.10.1
7.1.10.2
138
1. The IPv6 header portion can include supported extension headers as described in the IPv6 filter section.
Supported Receive Checksum Capabilities
The previous table lists the general details about what packets are processed. In more
detail, the packets are passed through a series of filters to determine if a receive
checksum is calculated:
MAC Address Filter
This filter checks the MAC destination address to be sure it is valid (such as, IA match,
broadcast, multicast, etc.). The receive configuration settings determine which MAC
addresses are accepted. See the various receive control configuration registers such as
RCTL (RTCL.UPE, RCTL.MPE, RCTL.BAM), MTA, RAL, and RAH.
SNAP/VLAN Filter
This filter checks the next headers looking for an IP header. It is capable of decoding
Ethernet II, Ethernet SNAP, and IEEE 802.3ac headers. It skips past any of these
intermediate headers and looks for the IP header. The receive configuration settings
determine which next headers are accepted. See the various receive control
configuration registers such as RCTL (RCTL.VFE), VET, and VFTA.
IPv4 packets
IPv6 packets
IPv6 packet with next header options:
Hop-by-Hop options
Destinations options
Routing (with len 0)
Routing (with len >0)
Fragment
Home option
IPv4 tunnels:
IPv6 tunnels:
Packet is an IPv4 fragment
Packet is greater than 1552 bytes;
(LPE=1b)
Packet has 802.3ac tag
IPv4 Packet has IP options
(IP header is longer than 20 bytes)
Packet has TCP or UDP options
IP header’s protocol field contains a
protocol # other than TCP or UDP.
IPv4 packet in an IPv4 tunnel
IPv6 packet in an IPv4 tunnel
IPv4 packet in an IPv6 tunnel
IPv6 packet in an IPv6 tunnel
Packet Type
Yes
No (n/a)
No (n/a)
No (n/a)
No (n/a)
No (n/a)
No (n/a)
No (n/a)
No
Yes (IPv4)
No
No
Yes
Yes
Yes
Yes
Yes
Yes
HW IP Checksum
Calculation
82574 GbE Controller—Inline Functions
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Yes
No
No
No
Yes
Yes
Yes
Yes
No
1
HW TCP/UDP Checksum
Calculation
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