• Gray metal arista dcs-7358-16c server rack with multiple slots for 100g network cards shown from the back side
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Arista

Arista DCS-7358-16C | 7358X4 16-Port 100G QSFP Line Card, up to 8x 200G

DCS-7358-16C

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Description

The Arista DCS-7358-16C is a 16-port QSFP100 interface module for the Arista 7358X4 and 7368X4 modular data centre switch chassis. It suits high-density 100G leaf or spine deployments in cloud and enterprise data centres, as well as HPC and machine learning clusters. A fully populated 7358X4 delivers 128 x 100G ports in 4RU.

The module provides 16 x QSFP28 ports at 100GbE, with up to 8 ports usable at 200G in alternate-port mode. Breakout is supported for up to 16 x 25GbE and 16 x 10GbE, and speed changes are hitless. Each module connects directly to the switch card without oversubscription, giving 3.2 Tbps per I/O module slot. Power draw is 83 W typical excluding optics and 140 W maximum with 4.5W optics on all ports.

The module fits the DCS-7368-CH chassis, which has 8 module slots and front-to-rear airflow only. It works alongside the DCS-7358X4-SC switch card, the DCS-7368-SUP supervisor and sibling modules DCS-7368-16S, DCS-7368-4D and DCS-7368-4P, and needs Arista EOS 4.28.0 or later. The module needs no licence of its own.

Enquire with XS Network Tech for new or used pricing and availability.

Features

- Hot-swappable, field-replaceable module that can be mixed with other I/O modules in the 7358X4 chassis
- Direct connection to the switch card without oversubscription
- 100G, 200G (alternate ports), 25G and 10G operation on QSFP ports
- Breakout support: 50GBASE-CR2 (QSFP to 2xQSFP) and 25GBASE-CR (QSFP to SFP25)
- Wide choice of 100G optics and cables including SR4, LR4, CWDM4, PSM4, AOC and CR4 DAC
- Runs Arista EOS with EVPN/VXLAN, 128-way ECMP, CloudVision, ZTP, LANZ, sFlow and DANZ
- Hitless speed changes

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- Part number: DCS-7358-16C
- Ports: 16 x QSFP28 (100GbE)
- Max 200GbE ports: 8 (alternate ports)
- Max 100GbE ports: 16
- Max 25GbE ports: 16 (breakout)
- Max 10GbE ports: 16 (breakout)
- Per-slot capacity: 3.2 Tbps, no oversubscription
- Power draw: 83 W typical (excluding optics), 140 W max (with 4.5W optics on all ports)
- Dimensions (HxWxD): 17 x 4.4 x 24.2 cm (6.7 x 1.7 x 9.5 in)
- Weight: 1.41 kg (3.1 lbs)
- Chassis support: DCS-7368-CH
- Airflow: Front to rear only
- Minimum EOS: 4.28.0
- Platform system capacity: up to 12.8 Tbps / 5.3 Bpps (7358X4 system)
- Platform latency: from 900 ns
- Platform packet buffer: 132 MB dynamic buffer allocation
- System operating temperature: 0 to 40 C
- System storage temperature: -40 to 70 C
- System relative humidity: 5 to 95%
- System operating altitude: 0 to 3,000 m
- Certifications: RCM (Australia/NZ), CE, UKCA, NRTL, KCC, BSMI, VCCI

FAQs

Q: Does this module need its own licence?
A: No. The module needs no licence of its own. The system runs Arista EOS, with a minimum of 4.28.0 for this module. Optional EOS feature licences such as LIC-FIX-3-E (Enhanced L3) are available for the platform.

Q: Which chassis does the DCS-7358-16C fit?
A: It fits the DCS-7368-CH chassis of the 7358X4 and 7368X4 series, which has 8 module slots. It works with the DCS-7358X4-SC switch card and DCS-7368-SUP supervisor.

Q: How is the module powered?
A: It is powered from the chassis, drawing 83 W typical excluding optics and 140 W maximum. The chassis takes up to 4 PWR-1900AC (2000W, 200-240VAC) or PWR-1900-DC (1900W, 40-72VDC) hot-swap power supplies in N+N redundancy.

Q: Can the 100G ports run at other speeds?
A: Yes. Up to 8 ports can run at 200G in alternate-port mode, and the QSFP ports support breakout to 25G and 10G, up to 16 ports of each. Speed changes are hitless.

Q: What optics and cables does it accept?
A: It accepts 100G QSFP28 optics and cables including SR4, XSR4, SWDM4, LR4, CWDM4, PSM4, AOC and CR4 DAC. Breakout is supported with 50GBASE-CR2 and 25GBASE-CR cables.

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