Important Official Cisco Product Clarification

N3K-M108P is NOT a valid, orderable Cisco Nexus switch part numberin Cisco’s official hardware catalog, datasheets, compatibility matrices, and EOL archives.

Root Cause of Naming Confusion

The invalid model name contains mixed-up Nexus 3000 series naming conventions:

1. N3K: Standard prefix for fixed-form-factor Cisco Nexus 3000 data center switches
2. M: Misplaced character; Cisco Nexus 3000 fixed switches use suffixes like-C,-T,-P(P = SFP/SFP+ fiber ports), notM
3. 108: Implies 108 ports — all official Nexus 3000 fixed switches only have 24 / 32 / 48 / 64 / 108-port variants, but the full valid part numbers never useMin this position
4. -P: Standard suffix indicating SFP/SFP+ fiber port configuration

Valid Nexus 3000 Series High-Density 108-Port Reference Models

表格

Below is the full official technical specification document for the closest matching genuine 108-port Nexus 3000 fiber switch:Cisco N3K-C31108PC-V(the most likely intended product for N3K-M108P).

Cisco N3K-C31108PC-V Full Official Technical Specification Document

1. Product Overview

Official Full Designation

Cisco N3K-C31108PC-V:Cisco Nexus 31108PC-V 1RU Top-of-Rack Data Center Switch, 48 SFP+ 1/10-Gigabit Ethernet Downlink Ports, 6 QSFP28 40/100-Gigabit Ethernet Uplink Ports, Virtualized NX-OS PlatformCisco

N3K-C31108PC-V is a high-density, low-latency 1RU fixed-form-factor ToR (Top-of-Rack) data center switch belonging to the Cisco Nexus 3100-V virtualized platform family. It is purpose-built for enterprise and cloud data center leaf/spine architectures, virtual server aggregation, high-performance computing (HPC), and storage area network interconnection. The V-suffix denotes virtualization-optimized NX-OS runtime, supporting containerized workloads, PoAP zero-touch provisioning, and automated fabric orchestration via DCNM.

Core Definition1-rack-unit (1RU) rack-mountable non-blocking layer 2/layer 3 data center switch with 48 hot-pluggable SFP+ downlink ports for 1G/10G fiber server/storage connections and 6 QSFP28 universal uplink ports configurable as 40G QSFP+, 100G QSFP28, or breakout to multiple 10G/25G interfaces. The switch runs Cisco NX-OS, a modular, fault-isolated data center operating system with dedicated memory and process separation for high availability. It delivers wire-speed low-latency packet forwarding, comprehensive hardware-accelerated security ACLs, granular QoS scheduling, advanced multicast replication, and full VXLAN EVPN fabric support for modern cloud data center deployments.

SKU Naming Breakdown

1. N3K: Cisco standard prefix for fixed-form-factor Nexus 3000 series data center switches
2. C31108: Platform identifier for Nexus 31108 high-density 108-port-class ToR switch
3. P: Port media suffix, indicating SFP/SFP+ fiber-only downlink ports
4. C: Configurable universal uplink variant with QSFP28 multi-speed support
5. -V: Virtualization-optimized platform suffix, optimized for virtual machine, container, and cloud automation workloads

Product Lifecycle Notice

• Official Global Release Year: 2020
• End-of-Sale (EoS) Announcement Date: Not yet announced (active sale platform as of 2026)
• Minimum Supported NX-OS Software Version: NX-OS Release 10.2(1)M or later
• Software Maintenance Status: Active Cisco TAC support, regular feature and security patch releases
• Legacy Status: Not legacy hardware; full Cisco technical support, spare parts, and firmware updates available via authorized distribution channels

Supported Chassis & Deployment Compatibility

Physical Deployment Environment

• Form Factor: 1RU standard EIA 19-inch rack mount
• Deployment Use Cases: Data center leaf ToR switch, virtualized server farm aggregation, HPC cluster interconnect, NAS/SAN storage aggregation, enterprise campus high-speed core trunking, cloud provider multi-tenant fabric leaf nodes

Fabric Compatibility

• Standalone NX-OS operation
• Cisco DCNM Data Center Network Manager fabric orchestration
• VXLAN EVPN leaf/spine data center fabrics
• vPC (virtual PortChannel) multi-chassis redundancy
• Cisco ACI external leaf integration (external fabric mode)

Standard Factory Complete Bundle Contents

Each factory-sealed N3K-C31108PC-V retail package contains all hardware required for rack installation and operation:

1. N3K-C31108PC-V base 48xSFP+ + 6xQSFP28 switch chassis
2. Dual hot-swappable AC power supplies (port-side intake airflow standard; reverse airflow spare PSUs available separately)
3. Hot-swappable redundant fan tray assembly
4. 19-inch rack mounting brackets and retention screws
5. Console cable (RJ45-to-RS232 serial)
6. USB out-of-band management cable
7. Quick-start hardware installation guide
8. Global regulatory compliance, safety, and EMI certification documentation packet

Core Integrated Functional Capabilities

• Non-blocking wire-speed packet forwarding for all 48 downlink and 6 uplink ports simultaneously
• Hardware-accelerated L2/L3 forwarding: IPv4/IPv6 unicast/multicast, MPLS label switching, VXLAN EVPN tunnel termination
• Comprehensive layer 2 feature suite: 802.1Q VLAN trunking (4096 VLAN IDs), vPC, LACP/Static EtherChannel, RSTP/MSTP, UDLD, private VLANs, PVLAN edge isolation
• Layer 3 routing protocols: Static routing, RIPv2, OSPFv2/v3, EIGRP, HSRP/VRRP, uRPF loose/strict mode
• Hardware security pipeline: Ingress/egress TCAM ACLs (16,000 ingress, 1,000 egress entries), DHCP snooping, ARP inspection, storm control, control-plane policing (CoPP)
• Hardware QoS scheduling: DSCP/802.1p CoS classification, traffic policing/marking, ingress buffer tuning, egress DWRR weighted queuing, WRED congestion avoidance, CBWFQ service queues
• Dedicated hardware multicast replication engine: PIM-SM, PIM-SSM, BiDir-PIM, MSDP, IPTV broadcast video workload acceleration
• Advanced data center automation features: PoAP zero-touch provisioning, NX-API REST API, NETCONF/YANG, Python scripting, EEM embedded event manager
• Full jumbo frame support up to 9216-byte MTU, SPAN/ERSPAN port mirroring, IEEE 1588 PTP boundary clock, NTP time synchronization, SSHv2 encrypted management, AAA/RADIUS/TACACS+ access controlCisco

2. Hardware & Performance Specifications

Core Forwarding & Scalability Performance

• Switching Fabric Capacity: 1.44 Tbps full-duplex non-blocking crossbar
• Packet Forwarding Throughput: 1.08 Bpps (billion packets per second) wire-speed L2/L3 forwarding
• MAC Address Table Capacity: 288,000 unique MAC addressesCisco
• VLAN Support: 4096 IEEE 802.1Q VLAN IDs
• Spanning Tree Instances: 512 RSTP instances; 64 MSTP instances
• TCAM ACL Capacity: 16,000 ingress ACL entries, 1,000 egress ACL entries
• FIB Routing Table Capacity: 16,000 IPv4 unicast prefixes, 16,000 host routes, 8,000 multicast routesCisco
• NetFlow Capacity: Hardware-accelerated NetFlow v5/v9 flow collection, up to 1M concurrent flow cache entries
• EtherChannel Limits: Maximum 64 PortChannels per switch, up to 32 physical ports per single PortChannel bundle
• System Memory: 16 GB high-speed system RAM, 16 GB eUSB persistent boot flash storageCisco
• Shared Packet Buffer: 16 MB dynamic tunable shared buffer pool for all ports

Port Hardware Specifications

Downlink Ports (48 × SFP+)

• Supported Speeds: 1 Gbps SFP, 10 Gbps SFP+
• Supported Transceiver Types: Cisco 1G/10G SFP/SFP+ optical transceivers, SFP-10G-T copper RJ45 transceivers
• Maximum Cable Reach: Dependent on installed SFP/SFP+ optics (SR short-range multimode, LR long-range single-mode, ER extended reach single-mode)

Uplink Ports (6 × QSFP28 Universal Ports)

• Native Supported Speeds: 40 Gbps QSFP+, 100 Gbps QSFP28
• Breakout Mode Support: Each QSFP28 port can be split via breakout cables to:
  • 4 × 10 Gbps SFP+ lanes
  • 4 × 25 Gbps SFP28 lanes
• Supported Transceiver Types: QSFP+ 40G optical/copper, QSFP28 100G optical transceivers

Electrical & Thermal Specifications

Power Supply

• Dual redundant hot-swappable AC power supplies (load-sharing active/standby redundancy)
• Input Voltage Range: Universal AC 100–240 V, 50/60 Hz
• Maximum System Power Consumption: 400 Watts full load
• Airflow Standard: Port-side intake, power supply/exhaust rear airflow (reverse airflow PSUs available as spare parts for cold-aisle port exhaust deployments)

Thermal & Environmental Operating Parameters

• Certified Operating Temperature Range: 0°C to 40°C (32°F to 104°F) continuous data center operation
• Extended Validated Operating Temperature: 0°C to 55°C (32°F to 131°F) short-term non-continuous operation
• Storage & Transport Temperature: -40°C to 70°C (-40°F to 158°F)
• Operating Relative Humidity: 10% to 90% RH, non-condensing
• Operating Altitude: Certified range -150 m to 2,000 m (-500 ft to 6,500 ft); extended validated range up to 3,000 m (10,000 ft)
• Cooling System: Redundant hot-swappable fan tray with variable-speed fans, no single point of cooling failure

Physical Form Factor & Weight

• Form Factor: 1RU standard 19-inch EIA rack-mount chassis
• Overall Physical Dimensions (W × D × H): 445 mm × 345 mm × 44 mm (17.5 in × 13.6 in × 1.73 in)
• Bare Chassis Net Weight (without transceivers): 4.6 kg (10.14 lbs)

3. Regulatory & Compliance Certifications

Fully compliant with global international industry, safety, EMC, and carrier-grade standards:

1. Safety Standards: UL 62368-1, CSA C22.2 No. 62368-1, EN 60950-1, IEC 60950-1
2. EMC & EMI Standards: FCC CFR Title 47 Part 15 Class A, VCCI Class A, EN55022 Class A, CISPR 22 Class A
3. Carrier-Grade Compliance: NEBS Level 3 (GR-1089-CORE, GR-63-CORE), ETSI ETS 300 386-2, EN 50121-4 railway EMC compatibility
4. Environmental Directive: EU RoHS 2 hazardous substance restriction compliance

4. Core Deployment Advantages

1. High-Density 10G ToR Design: 48 SFP+ 10G downlinks deliver industry-leading server/storage port density in a compact 1RU rack footprint, minimizing data center rack space consumption.
2. Flexible Multi-Speed Uplink Scalability: 6 universal QSFP28 uplink ports support 40G / 100G native speeds or breakout to multiple 10G/25G lanes, enabling seamless migration from 10G to 25G/40G/100G leaf/spine fabrics without chassis replacement.
3. Virtualization-Optimized NX-OS Runtime: The V-series platform’s optimized NX-OS kernel delivers low latency for virtual machine, container, and cloud-native workloads, with robust PoAP zero-touch provisioning for automated fabric deployment.
4. Full Layer 2/Layer 3 Feature Richness: Unified support for traditional enterprise routing protocols and modern VXLAN EVPN cloud fabric tunneling, eliminating the need for separate aggregation and fabric leaf switches in mixed workload data centers.
5. Redundant Hot-Swappable Critical Components: Dual load-sharing AC power supplies, redundant variable-speed fan trays, and hot-pluggable transceivers enable in-service component replacement without chassis power cycling or network outages, maximizing data center operational uptime.
6. Comprehensive Hardware Acceleration: All forwarding, ACL security, QoS scheduling, multicast replication, and NetFlow statistics functions run on dedicated silicon ASICs, avoiding supervisor CPU bottlenecks and maintaining consistent wire-speed performance under full traffic load.
7. Open Programmability & Automation Support: Native REST API, NETCONF/YANG, Python scripting, and EEM embedded event manager enable seamless integration with third-party cloud orchestration, monitoring, and automation platforms, supporting fully software-defined data center (SDDC) deployments.

Supplementary Product Specification Notes

UNSPSC Classification Code

43222612 (1RU rack-mount high-density data center top-of-rack switch, Cisco Nexus 31108PC-V virtualized NX-OS platform, 48 x SFP+ 1/10G fiber downlink ports, 6 x QSFP28 multi-speed 40/100G uplink ports, dual redundant AC power supplies, hot-swappable fan tray, hardware-accelerated L2/L3 forwarding, VXLAN EVPN fabric support, for enterprise and cloud data center leaf/spine architectures).

K9 Security Compliance Note

All N3K-C31108PC-V supported NX-OS firmware releases implement AES 128-bit encrypted remote CLI, web portal, SNMP, and NETCONF management traffic, meeting Cisco K9 secure network hardware classification standards required for government, military, healthcare, and financial regulated enterprise and cloud data center deployments.

Factory Hardware Warranty Terms

Standard 1-year limited hardware warranty coverage for brand-new factory-sealed N3K-C31108PC-V switch chassis purchased through official Cisco authorized global distribution channel partners. Extended 3-year / 5-year hardware support contracts are available as optional add-ons via Cisco DNA Support Services, covering spare part replacement, 24x7 Cisco TAC engineering technical support, and certified NX-OS firmware upgrade releases.