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The Cisco C-NIM-1X= is a high-performance, single-port 10G/1G SFP+ WAN Network Interface Module designed exclusively for Cisco Catalyst 8300 Series Edge Platforms. It provides a dedicated, non-blocking 10 Gigabit Ethernet fiber uplink, optimized for high-speed, secure Layer 3 WAN, SD-WAN, and cloud connectivity in enterprise branch and aggregation environments. This module operates strictly as a routed WAN port with integrated hardware security.
1 x SFP+ Port: Supports dual-speed connections: 10 Gbps (10GBASE-X) and 1 Gbps (1000BASE-X) using SFP+ or SFP optics.
Non-Oversubscribed Backplane: Connects to the router's forwarding engine via a dedicated 10 Gbps backplane link, ensuring full line-rate throughput without contention.
Layer 3 Exclusive: Functions as a pure routed WAN interface; no Layer 2 switching capabilities, maintaining parity with the router's native WAN ports.
Jumbo Frames: Supports large packet sizes up to 9 KB for efficient data transfer.
256-bit Hardware MACsec: Implements IEEE 802.1AE line-rate encryption for secure WAN transport.
WAN MACsec: Provides hop-by-hop security for Ethernet WAN links, protecting data integrity and confidentiality at the physical layer.
Zero Trust Integration: Seamlessly integrates with the router's comprehensive security and SD-WAN policies.
Optic Support: Compatible with a wide range of Cisco 10G SFP+ (SR, LR, ER, LRM, BX) and 1G SFP (SX, LX, EX) fiber transceivers.
Unsupported Media: Does not support RJ-45 copper SFPs or 10/100 Mbps SFPs; fiber-only design.
Platform Support: Fully compatible with all Cisco Catalyst 8300 Series routers (e.g., C8300-2N2S-6T, C8300-1N1S-4T2X). Not supported on Catalyst 8200 Series.
Hot-Swappable: Supports Online Insertion and Removal (OIR) for upgrades without network downtime.
SD-WAN Optimized: Fully managed by Cisco SD-WAN Manager (vManage) for intelligent path control and application performance.
Investment Protection: Enables 10Gbps WAN scalability on existing Catalyst 8300 chassis, delaying costly hardware refreshes.
Robust QoS: Supports comprehensive quality-of-service features, including classification, queuing, and traffic shaping.
| Parameter | Specification |
|---|---|
| Product SKU | C-NIM-1X= |
| Module Type | 1-port 10G/1G SFP+ WAN NIM (Network Interface Module) |
| Interface | 1 x SFP+ slot (SFP and SFP+ compatible) |
| Speed | 10 Gbps (SFP+) / 1 Gbps (SFP) |
| Backplane Bandwidth | 10 Gbps non-oversubscribed |
| Layer Support | Layer 3 (Routed) Only – No Layer 2 switching |
| Encryption | 256-bit IEEE 802.1AE MACsec (Hardware) |
| Supported Optics | 10G: SFP-10G-SR, SFP-10G-LR, SFP-10G-ER, SFP-10G-LRM1G: SFP-GE-S, GLC-LH-SMD, GLC-SX-MMD |
| Unsupported Optics | Copper RJ-45 SFPs, 100BASE/10BASE SFPs |
| PoE Support | No |
| Dimensions (W x D x H) | 3.5 x 7.24 x 1.25 in. (88.9 x 183.9 x 31.75 mm) |
| Weight | 1.1 lbs (0.5 kg) |
