• Cisco Nexus 9018 switch with 48x 1/10G SFP+ ports and 6x 100G QSFP28 uplinks
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Cisco

Cisco N3K-C31108PC-V | Nexus 3100-V 48-Port 10G SFP+ Switch, 6x 100G QSFP28, Layer 3

N3K-C31108PC-V

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Description

The Cisco N3K-C31108PC-V Nexus 31108PC-V is a high-performance data center switch designed for top-of-rack deployments. This 1RU switch delivers 48 SFP+ ports supporting 1/10 Gigabit Ethernet and 6 QSFP28 ports supporting 40/100 Gigabit Ethernet, with 2.16 Tbps switching capacity and ultra-low latency. Running Cisco NX-OS, it offers line-rate Layer 2/3 switching, VXLAN routing, and advanced programmability for modern data center environments.

Features

Line-rate Layer 2 and Layer 3 switching on all ports
- Line-rate VXLAN routing with BGP EVPN control plane
- 64-way ECMP routing for Layer 3 fat-tree designs
- Virtual PortChannel (vPC) for Layer 2 multipathing
- 16 MB shared buffer for burst absorption
- Advanced QoS with hardware-based classification, policing, and shaping
- Comprehensive Layer 2 protocols: RSTP (512 instances), MSTP (64 instances), LACP
- Layer 3 routing protocols: BGP, OSPF, EIGRP, RIPv2, PIM-SM, SSM, MSDP
- IPv4 and IPv6 support
- Advanced security: ACL support, DHCP snooping, Dynamic ARP Inspection, IP Source Guard
- Authentication: RADIUS, TACACS+, SSH v2, AES encryption
- NetFlow and sFlow for traffic monitoring and analytics
- Cisco Nexus Data Broker support for network TAP/SPAN aggregation
- Power-on Auto Provisioning (POAP) for zero-touch deployment
- Python scripting and Cisco EEM for automation
- NX-API for RESTful programmability
- In-Service Software Upgrade (ISSU) and Fast Reboot
- Hot-swappable power supplies and fans
- Forward and reverse airflow options for hot/cold aisle deployment

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

48x 10G SFP+ ports (support 100Mbps, 1Gbps, 10Gbps)
- 6x 100G QSFP28 ports (support 40G, 100G, or 4x 10G mode)
- Switching capacity: 2.16 Tbps
- Forwarding rate: up to 1.2 Bpps
- Latency: ~650 nanoseconds
- MAC address table: 288,000 entries
- VLAN support: 4,096 VLANs
- Routing table: 16,000 prefixes, 16,000 host entries, 8,000 multicast routes
- ACL entries: 16,000 ingress / 1,000 egress
- Shared buffer: 16 MB
- Jumbo frame support: up to 9,216 bytes MTU
- EtherChannel support: 64 channels with vPC
- Layer 2/3 switching: Line-rate on all ports
- Form factor: 1RU rack-mountable
- Dimensions (H x W x D): 1.72 x 17.3 x 22.3 inches (4.4 x 43.9 x 56.6 cm)
- Weight: 21.4 lb (9.7 kg)
- Redundant power supplies: 2x hot-swappable (AC/DC)
- Redundant fans: 3+1 hot-swappable
- Airflow options: Port-side exhaust (forward) or port-side intake (reverse)
- Management: Console, USB, NX-OS CLI, SNMP, NX-API, NetFlow, Telemetry
- Operating system: Cisco NX-OS (Release 7.0(3)I2.2 and later)
- Operating temperature: 0°C to 40°C (32°F to 104°F)
- Storage temperature: -40°C to 70°C (-40°F to 158°F)

FAQs

Q: What port configurations does the N3K-C31108PC-V support?
A: The switch features 48 SFP+ ports that support 100Mbps, 1Gbps, and 10Gbps speeds, plus 6 QSFP28 ports that can operate in 40G, 100G, or 4x10G breakout mode, providing flexible connectivity options for server and uplink connections.

Q: Does this switch support VXLAN and network virtualization?
A: Yes, the N3K-C31108PC-V offers line-rate VXLAN routing and supports BGP EVPN control plane for scalable multitenancy and host mobility, making it ideal for modern data center fabrics and cloud environments.

Q: What is the typical deployment scenario for this switch?
A: This switch is designed as a top-of-rack solution for data centers, supporting spine-leaf architectures with 10G server connectivity and 40/100G uplinks to spine switches. It is well-suited for enterprise applications, HPC, and cloud computing environments.

Q: What management and automation features are available?
A: The switch runs Cisco NX-OS with support for Power-on Auto Provisioning (POAP), Python scripting, Cisco EEM, NX-API, and integration with Cisco DCNM. It supports modern DevOps toolsets for programmable network automation.

Q: What redundancy and high availability features does it offer?
A: The N3K-C31108PC-V includes dual hot-swappable power supplies, 3+1 redundant fans, support for vPC (Virtual PortChannel) technology, ISSU (In-Service Software Upgrade), and Fast Reboot capabilities for maximum uptime.

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