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Cisco Nexus 3550-F Programmable Layer 2 Application Platform Data Sheet

Data Sheet

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Updated:December 17, 2021

Bias-Free Language

The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.

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Updated:December 17, 2021
 

 

A flexible low latency networking platform

The Cisco Nexus® 3550-F Programmable Layer 2 Application Platform is a compact, yet powerful networking platform designed specifically for low-latency applications. The device features up to 48 ports of 1G/10G Ethernet connectivity in a single rack unit form factor that can be programmed as:

     Fully managed Layer 2 MAC learning platform, with VLAN tagging/trunking and IGMP snooping. This is intended for applications where simple multiplexers are insufficient. As a Layer 2 Application Platform, the device offers latencies as low as 95ns.

Scalable modular architecture

The Cisco Nexus 3550-F Programmable Layer 2 Application Platform (N35-FS-48X) is built around a unique modular architecture that scales with your network. Three-line card bays provide the flexibility to grow and change connectivity options over time, while two internal module bays allow the device to be upgraded with expanded functionality, adding new capabilities and extending the useful life of the product. The 3550-F Programmable Layer 2 Application Platform architecture is shown in the figure below (Figure 1). At the heart of the architecture is High-Density Layer 1 connectivity that provides low-latency programmable 10GbE connectivity between all modules.

Cisco Nexus 3550-F Programmable Layer 2 Application Platform architecture

Figure 1.               

Cisco Nexus 3550-F Programmable Layer 2 Application Platform architecture

The external module bays (A, B, and C) can be populated with a 16-port SFP+ line card (N35-F-16P) and/or a 4-port QSFP+ line card (N35-F-4Q). Standard SFP+ and QSFP+ optics or cable connectivity options are available.

A high-density FPGA (N35-F-KU115) module is included for Layer 2 applications. For custom applications, multiple FPGAs and/or multiple X86 CPU modules (N35-F-SKL) may be installed and programmed.

Ease of use and manageability

The Cisco Nexus 3550-F Programmable Layer 2 Application Platform runs a custom operating system and Command Line Interface (CLI), designed specifically to address the needs of Layer 2 and low-latency FPGA applications. Every command available on the CLI is also available through a remote JSON RPC API. This makes the device easy to operate and manage at scale.

The Cisco Nexus 3550-F Programmable Layer 2 Application Platform includes standard enterprise manageability and deployment features including automatic configurations (through DHCP), SNMP, TACACS+ authentication, on-board Python programmability, BASH shell access, and time-series logging.

Packet aware statistics and monitoring

The Cisco Nexus 3550-F Programmable Layer 2 Application Platform is fully packet aware. Every port on the device is monitored for vital packet statistics, including the number of packets and bytes transmitted or received and transmit and receive errors. The device also provides deep diagnostics, including light levels, operating temperatures, transceiver capabilities, and more. All these statistics are available at no latency cost on the critical path.

Layer 2 learning application capabilities

Not all use cases need Layer 1 learning or Layer 2 Multiplexing. Sometimes a Layer 2 learning platform is needed, yet low latency is still required. Along with the capability to run Layer 1 learning applications and Multiplexing applications, the 3550-F Programmable Layer 2 Application Platform provides Layer 2 learning applications with a latency as low as 95ns, which is almost half the latency of the previous generation Layer 2 devices. In addition to MAC learning, it also offers:

     VLAN tagging, trunking, stripping, and rewriting

     IGMP snooping

     TAP/agg timestamping with 2.8ns timestamp resolution

     BGP client (peering only)

Cisco Nexus 3550-F Programmable Layer 2 Application Platform

Figure 2.               

Cisco Nexus 3550-F Programmable Layer 2 Application Platform

Cisco Nexus 3550-F Programmable Layer 2 Application Platform features

Latency

     L1 Tap/Patch: 3ns minimum – 5ns maximum

     FastMux: 39ns minimum – 48ns maximum

     Mux: 92ns minimum – 107ns maximum

     Mux (switch): 86ns minimum – 102ns maximum

     Layer 2 Application: 95ns minimum – 126ns maximum

Statistics

     Packet counters (RX, TX, dropped, etc.)

     Per port status LEDs

     Live packet dump

     SFP diagnostics (light levels, temps, etc.)

     SNMP, local, and remote syslog

     Time-series logging to InfluxDB

Connectivity

   3x 16 SFP+ line cards, up to 48 ports

   3x 4QSFP line cards, up to 12 ports (48x1/10G)

   SFP+ Fiber (10GBASE-SR, 10GBASE-LR, 10GBASE-LRM, 1000BASE-SX, 1000BASE-LX)

   SFP+ copper direct attach

   SMA for PPS in/out

   SMA for GPS in

   RJ45 management port

   RJ45 Industry standard serial port

   USB (for firmware upgrades)

Management

   CLI via serial, SSH, and telnet

   JSON RPC API for all CLI commands

   Automatic configuration via DHCP

   TACACS+ and multiuser support

   ACLs on management interface

   FW updates via SFTP, TFTP, HTTP, and USB

   Onboard BASH and Python scripts

   Onboard Cron jobs

   Time sync via PPS, GPS, PTP, and NTP

General

     19” 1RU, rack mount

     Weight 11kg (24lbs)

     Dual, hot-swappable supplies

     Standard: AC 90-264V, 47-64 Hz, included IEC C13-C14 cables

     Optional: DC 40-72V

     Maximum consumption: 150W

     Dual hot-swappable fan modules

     Optional airflow direction

     Operating temperature: -5 °C to 45 °C

     Storage temperature: -40 °C to 70 °C

     Operating relative humidity: 5% to 90% (noncondensing)

     Storage relative humidity: 5% to 95% (noncondensing)

Product Sustainability

Information about Cisco’s environmental, social, and governance (ESG) initiatives and performance is provided in Cisco’s CSR and sustainability reporting.

Table 1.           Cisco environmental sustainability information

Sustainability topic

Reference

General

Information on product-material-content laws and regulations

Materials

Information on electronic waste laws and regulations, including our products, batteries, and packaging

WEEE Compliance

Information on product takeback and reuse program

Cisco Takeback and Reuse Program

Sustainability inquiries

Contact: csr_inquiries@cisco.com

Operating and storage conditions

General

Power

Power supply

General

Maximum power consumption

General

Material

Product packaging weight and materials

Contact: environment@cisco.com

Dimension and weight

General

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