Huawei CR5DLPUF517E

The Huawei CR5DLPUF517E is a 48-port 10 Gigabit Ethernet (10GE) interface card designed for the Huawei NetEngine 5000 and 8000 series core routers (like the M3 and M8 chassis we just covered). This card slots into the router's chassis to provide physical network connectivity.

Decoding the Model Number: CR5DLPUF517E

• CR: Core Router

• 5: Series generation (NetEngine 5000/8000 family)

• DLPUF: This is the critical part, indicating the card's function. It breaks down as:

  • DL: Likely refers to the physical connector type (SFP+), which is used for 10GE optics.

  • P: May indicate a specific hardware version or feature set.

  • UF: Often stands for "Interface Unit" or simply denotes a line card.

• 517E: A specific version or revision code for this card model.

In simple terms, this is a 48-port 10GE SFP+ line card.

Key Features and Capabilities

This card is designed for high-density, high-throughput connectivity in a core routing environment.

1. High Port Density:

   • Provides 48 ports of 10 Gigabit Ethernet in a single slot.

   • This allows a single router to connect to a large number of downstream devices (e.g., aggregation switches, other routers, servers).

2. SFP+ Form Factor:

   • Uses SFP+ transceivers, which provides flexibility. You can use:

     • SFP+ SR (Multimode fiber for short distances)

     • SFP+ LR (Single-mode fiber for long distances)

     • SFP+ DAC (Direct Attach Copper for short in-rack connections)

   • This allows the same card to be used for various cabling and distance requirements.

3. High Performance:

   • The card is built with Huawei's custom chipsets to handle line-rate forwarding on all ports simultaneously.

   • It is designed to integrate seamlessly with the router's central switching fabric, ensuring low latency and no bottlenecks.

4. Hot-Swappable:

   • Like all components in carrier-grade routers, this line card is hot-swappable, meaning it can be added, removed, or replaced without powering down the entire router chassis.

5. Advanced Software Support:

   • Supports all the advanced routing protocols and features (MPLS, Segment Routing, QoS) that the main router chassis supports, applied to the traffic passing through these ports.

Key Specifications

How It Fits into the Network

You would install one or more of these CR5DLPUF517E cards into a chassis like the CR5P08BASA7D (8-slot) or CR5P03BASA75 (3-slot).

• Purpose: This card gives the core router its "hands" to connect to other devices.

• Example Use Case: In an Internet Service Provider's (ISP) point of presence (PoP), this card in a core router might be used to aggregate connections from dozens of smaller aggregation routers or to connect to large data center switches, each link running at 10Gbps.