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Juniper

Juniper QFX5100-48T-DC-AFO | QFX5100 48-Port 10GBASE-T Switch, 6x 40G QSFP+, DC, AFO

QFX5100-48T-DC-AFO

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Description

The QFX5100-48T-DC-AFO is a 1U fixed-configuration data centre switch from the Juniper QFX5100 series. It is built for top-of-rack access and aggregation in spine-and-leaf, Layer 3 fabric or Virtual Chassis designs, and suits mixed 1GbE, 10GbE and 40GbE environments. This DC-powered AFO variant uses front-to-back airflow, which fits hot-aisle and cold-aisle facilities.

It provides 48 multi-rate 100M/1G/10G RJ-45 (10GBASE-T) ports and 6 QSFP+ ports, each configurable as 1 x 40GbE or 4 x 10GbE. Switching capacity is 1.44 Tbps at 1.08 Bpps, with cut-through and store-and-forward modes. Power comes from dual redundant hot-pluggable DC supplies (-36 to -72 V DC), with redundant N+1 fan modules. Typical power consumption is 335 W. The base Junos Layer 2 and Layer 3 feature set is included, while IS-IS, BGP, VXLAN and MPLS need the optional Advanced Feature License QFX-JSL-EDGE-ADV1.

The switch works with SFP and SFP+ 10GbE optics, SFP GbE optical and copper modules, SFP+ DAC cables, QSFP+ to SFP+ breakout DAC cables and 40GbE QSFP+ optics. It can join a Juniper Virtual Chassis, including mixed Virtual Chassis, and Layer 3 fabrics.

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

Features

- Junos OS with Layer 2, Layer 3 and MPLS feature set
- Topology-Independent In-Service Software Upgrade (TISSU)
- Virtual Chassis and Layer 3 fabric support for plug-and-play deployments
- Built-in Insight Technology for microburst monitoring and hotspot statistics
- VXLAN, OVSDB and VMware NSX L2 gateway support
- Automation support: Python, Chef, Puppet and zero-touch provisioning (ZTP)
- Data Center Bridging (PFC, ETS, DCBX) and FCoE transit
- MC-LAG, BFD and uplink failure detection for high availability

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

- Ports: 48 x 100M/1G/10GbE RJ-45 (10GBASE-T)
- Uplinks: 6 x 40GbE QSFP+
- QSFP+ port modes: each port configurable as 4 x 10GbE or 1 x 40GbE
- 10GbE SFP+ via breakout cable: 24
- Switching capacity: 1.44 Tbps / 1.08 Bpps
- Switching mode: Cut-through and store-and-forward
- Latency: as low as 550 ns
- Power supply: dual redundant (1+1) hot-pluggable, -36 to -72 V DC
- Power consumption: 335 W typical
- Fan modules: redundant (N+1) hot-pluggable
- Airflow: front-to-back (AFO)
- CPU, memory, storage: 1.5 GHz dual-core Intel CPU, 8 GB memory, 32 GB SSD
- Management ports: 1 RJ-45, 1 SFP, plus USB and console
- MAC addresses per system: 288,000
- VLAN IDs: 4,096
- LAGs: 128 (32 ports per LAG)
- IPv4 unicast routes: 128,000 prefixes, 208,000 host routes, 644 ECMP paths
- IPv4 multicast routes: 104,000
- IPv6 unicast routes: 64,000 prefixes
- ARP entries: 48,000
- Firewall filters: 4,000
- Jumbo frame: 9,216 bytes
- Hardware queues per port: 12 (8 unicast, 4 multicast)
- Dimensions (H x W x D): 1.72 x 17.36 x 21.47 in (4.37 x 44.09 x 54.54 cm)
- Weight: 24.8 lb (11.2 kg)
- Mounting: 1U, four-post 19-in rack

FAQs

Q: Does this switch need a licence to run BGP, IS-IS, VXLAN or MPLS?
A: The base Junos Layer 2 and Layer 3 feature set is included. IS-IS, BGP, VXLAN and MPLS require the optional Advanced Feature License QFX-JSL-EDGE-ADV1, which covers the QFX5100-48T.

Q: What power input does the DC model use?
A: It uses dual redundant (1+1) hot-pluggable DC power supplies with a -36 to -72 V DC input. Typical power consumption is 335 W.

Q: What does AFO mean for airflow?
A: AFO denotes front-to-back airflow, with redundant variable-speed fan modules. This suits hot-aisle and cold-aisle data centre layouts.

Q: Which optics and cables work with the 40G QSFP+ ports?
A: The QSFP+ ports accept 40GbE QSFP+ optics and QSFP+ to SFP+ breakout DAC cables (1/3 m). Each port can be set to 1 x 40GbE or 4 x 10GbE.

Q: Can it be part of a Virtual Chassis?
A: Yes. It supports Juniper Virtual Chassis, including mixed Virtual Chassis, and Layer 3 fabric deployments.

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