Features and FPGA images
In the Link™ Capture
Software 12.4 release the
NT40E3-4-PTP SmartNIC contains two different FPGA images, a capture image (default) and a capture/replay image. The Link™ Capture
Software 12.4 release also
supports the NT40E3-4-PTP-C2 SmartNIC, which contains a capture/replay 2
image (default) and a capture
image. This table shows the features that differ
between the capture image, the capture/replay image and the capture/replay 2
image.
Feature |
Capture Image |
Capture/Replay Image |
Capture/Replay 2 Image |
Timed host-based transmission |
- |
X |
X |
Local retransmission |
- |
X |
X |
Limited low-rate transmission |
X |
- |
- |
Deduplication |
X |
- |
X |
Start-of-frame time stamps |
X |
- |
X |
VN-Tag classification |
X |
- |
X |
Decoding of Cisco FabricPath encapsulated frames |
X |
- |
X |
Flow match filter based on key test |
X |
X |
- |
IP fragment handling |
X |
X |
- |
Apart from these differences the rest of the features are the same in all three images.
See DN-0487 for an
explanation of how to switch between the capture image and the capture/replay
image in an NT40E3-4-PTP SmartNIC and between the capture/replay 2 image and the capture
image in an NT40E3-4-PTP-C2 SmartNIC.
Style Conventions
Bold typeface is used for names of, for instance, user interface elements and software components.
Italic typeface is used for replaceable text.
Monospaced typeface is used for code, commands and file names.
Abbreviations
4GA
Fourth-Generation Architecture
CPU
Central Processing Unit
CRC
Cyclic Redundancy Check
GPDU
GSM Protocol Data Unit
GRE
Generic Routing Encapsulation
GREv0
Generic Routing Encapsulation Version 0
GREv1
Generic Routing Encapsulation Version 1
GSM
Global System for Mobile Communications
GTP
GPRS Tunneling Protocol
GTPv0-U
GPRS Tunneling Protocol Version 0 – User data tunneling
GTPv1-C
GPRS Tunneling Protocol Version 1 – Control section
GTPv1-U
GPRS Tunneling Protocol Version 1 – User data tunneling
GTPv1v2-C
GPRS Tunneling Protocol Version 1 or Version 2 – Control section
GTPv2-C
GPRS Tunneling Protocol Version 2 – Control section
ICMP
Internet Control Message Protocol
IEEE
The Institute of Electrical and Electronics Engineers
IOMMU
Input/Output Memory Management Unit
IPv4
Internet Protocol Version 4
IPv6
Internet Protocol Version 6
IPX
Internetwork Packet eXchange
Mac, MAC
Media Access Control
MPLS
MultiProtocol Label Switching
NDIS
Network Driver Interface Specification
NEBS
Network Equipment-Building System
NT-TS
NapaTech Time Synchronization
NTPL
NapaTech Programming Language
Ntts
NapaTech Time Synchronization
NVGRE
Network Virtualization using Generic Routing Encapsulation
PCIe
Peripheral Component Interconnect Express
Ptp, PTP
Precision Time Protocol
QPI
QuickPath Interconnect
RMON
Remote network MONitoring
SCTP
Stream Control Transmission Protocol
Tcp, TCP
Transmission Control Protocol
Tx, TX
Transmission/Transmit
Udp, UDP
User Datagram Protocol
UNIX
UNiplexed Information and Computing System
VLAN
Virtual Local Area Network
VN-Tag
Virtual Network TAG
References