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fbCAPTURE
The fbCAPTURE framework is a combination of FPGA firmware and a software API in C that utilizes the full potential present in a range of FPGA based network interface cards from Silicom. For wider support and ease of integration support for DPDK, PF_RING and libPCAP is included.
The fbCAPTURE cards are designed with a combination of a powerful FPGA and large amounts of high speed onboard memory to ensure zero packet loss even at line rate performance. The fbCAPTURE API is common for all the Capture cards at 1GE, 10GE, 25GE, 40GE and 100GE link speeds. This simplifies system integration greatly, as support for multiple network speeds can be achieved with the same integration efforts.
- Same API for all Silicom capture cards
- Support for HW accelerated DPDK, LibPCAP and PF_RING and nTop suite
- C based API (DLL/Shared library)
- Linux supported
- Multi Channel Direct Memory Access streaming (DMA) to Packet Ring Buffers (PRB)
- Up to 64 channels to host RAM
- 255 channels for packet transmit
- User error handlers
- No additional SW library dependencies
- SW development and integration tools
- Host server traffic load balancing
- Up to 64 channels to multiple host processes’ memory
- Selective traffic redirection
- Load balancing to external hosts via optical Tx interfaces, incl logical channels
- Dual level load balancing. Hosts & CPUs
- Duplicate packets to multiple channels
- Distribution without CPU overhead using 2, 3, 5 and N tuple hashing or filter rules
- Cross-probe hash fraction distribution
- Custom hashing
- Silicom cards for 1, 10, 25, 40, 100 and 400 Gbit/s
using pluggable transceiver modules (SFP, SFP+,
sfp28/QSA28 QSFP+, QSFP28, QSFPDD), with options for 50 and 20 Gbps - Ethernet PHY embedded in FPGA for full packet
control - PCIe Gen1, Gen2, Gen3, Gen4 and Gen5 support for optimal
host throughput at the appropriate link speeds - Passive monitoring via SPAN/Mirror port/optical taps, packet broker
- Active monitoring using fbCapture card as bypass device allowing blocking and injection
- Ethernet auto-negotiation, RS-FEC
- Limitless Daisy Chaining of monitored optical
fibers between cards, at full signal strength, reducing
number tapping of points - Jumbo & undersized packet support
- Link level RMON+ stats
- A wide range of inline filters can be defined and
combined in real-time to meet a variety of filtering
requirements on a wide range of protocol header
parameters - On-the-fly reconfiguration of filters
- Filter types available include ranges, pattern
match, fixed/dynamic offset and value, bit masks
and value, true/false, not, hash values, compounds
and more on e.g.: - Link layer:
ARP, Tunnels (L2TP), MAC, VLAN incl. Stacked
VLAN, MPLS, etc. - Internet layer:
IPv4, Ipv6, ICMP, RIP, OSPF, ECN, etc. - Transport layer:
UDP, TCP, SCTP, etc. - Application layer:
HTTP, FTP, LDAP, POP, RTP, SIP, SMTP, Telnet,
GTPv1, GTPv2, SIGTRAN, GTP-U payload headers
incl tunneled load balancing etc. - Optional on-wire error and undersized frames to
processing and capture
- Slicing rules can be applied to conserve memory
and storage by truncating packets - Fixed length slicing
- Dynamic slicing, where truncation may start at
offset from any specified header and include user
definable number of bytes thereafter
- Captured packets can be enriched with descriptors
generated by the adapter at line rate. - PCAP Descriptor
- Standard Descriptor
- Multiple Extended Descriptor
- Multiple time formats supported
- Zero copy PDU handling
- Packet indexing of protocol layers
- No protocol parsing needed for access to individual
layers - Optional insertion of time alignment ticks
(packets) in host memory buffer every 100ms/1s - Optimized packet transfers for batch processing
- Packet batching based on time or batch size
- API supplied parsing code
- Removal of duplicated packets
- Configurable duplication detection parameters
- IP fragments are correlated on-the-fly and processed
as the initial fragment of the original packet - Correlated fragment handling ensures that all
related fragments are delivered to same channel
as specified for the complete original packet - True representation of on-wire packets
- Elaborated subset of RFC2819 RMON1
- Periodic statistics for each interface
- Counters for special purpose firmwares
- Network counters include: number of octets, CRC
align errors, undersize packets, oversize packets
incl. Jumbo frames, packet size distribution &
more - Provided via API or via supplied independent
Silicom application
- Temperature with preset minimum, maximum
card operating temperature - Optical signal level readings
- Link status
- HW status validation
