FPC Description | Juniper Networks M40e specification

FPC Description

•FPC Description

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The FPCs on a router house the Physical Interface Cards (PICs), which connect the router to network media. The I/O Manager ASIC or ASICs on the FPC accepts incoming data packets from the PICs on the FPC and divides each packet into 64-byte cells. The cells cross the midplane to the SFM, where another ASIC decides how to distribute them among the memory buffers located on and shared by all installed FPCs. After the SFM decides how to forward a packet, the I/O Manager ASIC or ASICs on the FPC reassembles the corresponding data cells back into network-packet form and passes the packet to the appropriate PIC for transmission to the network.

FPCs are hot-insertable and hot-removable. When you remove or install an FPC, packet forwarding halts for about 200 ms while the Packet Forwarding Engine adjusts to the change in the amount of memory available in the pool located on and shared by all FPCs. When you install an FPC into a functioning router, the Routing Engine downloads the FPC software, the FPC runs its diagnostics, and the PICs housed on the FPC are enabled. Forwarding continues uninterrupted during this process.

An FPC can be installed into any FPC slot, regardless of the PICs it contains, and any combination of slots can be used. If a slot is empty, you must install a blank FPC panel to shield it, so that cooling air can circulate properly throughout the card cage.

For a description of the FPCs supported on each router, see the following sections:

!M20 FPC Description on page 3

!M40 FPC Description on page 4

!M40e FPCs Description on page 5

!M160 FPCs Description on page 7

2	FPC Installation Instructions

M40e, M40 specifications

Juniper Networks M40 and M40e are high-performance, modular routers designed to provide scalability, flexibility, and advanced capabilities for service providers and large enterprises. These platforms have made a significant impact in the networking industry due to their robust architecture and rich feature set.

The Juniper M40 was introduced as a key player in the routing landscape, emphasizing performance and reliability. It is based on the innovative Junos operating system, which enables operators to manage network resources effectively. The M40 router features a flexible modular design, allowing for the installation of various interface cards that support multiple protocols and speeds. This versatility is crucial for adapting to evolving network demands.

One of the standout features of the M40 is its high throughput capability, supporting up to 40 Gbps with exceptional performance under heavy loads. This is complemented by advanced queuing and scheduling options that ensure efficient traffic management. The M40 also implements sophisticated routing protocols, such as BGP, OSPF, and MPLS, enabling service providers to enhance their network infrastructure with robust routing features.

The M40e variant enhances the original model with additional features and improved performance metrics. It is built for even greater scalability, supporting more interface types and higher capacities. The enhanced hardware of the M40e allows it to process data packets with lower latency, ensuring optimized performance for real-time applications such as voice and video.

Both M40 and M40e routers utilize a redundant architecture, providing high availability and fault tolerance. This is crucial for mission-critical applications where downtime can lead to significant operational disruptions and financial losses. The routers also boast advanced security features, including support for IPsec and various access control mechanisms, ensuring data integrity and confidentiality across the network.

In summary, the Juniper Networks M40 and M40e routers represent a significant evolution in networking technology. Their modular architecture, high throughput capabilities, advanced routing protocols, and robust security features make them ideal choices for service providers and enterprises looking to build resilient and high-performance networks. With their proven reliability and performance, these routers continue to serve as a foundation for modern networking solutions.