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by Juniper
Product Line: Juniper SRX Series Series
Product Type: Port Module
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Product Description

The SRX-IOC-4XGE-XFP-A is a Juniper port module equipped with four 10-Gigabit Ethernet XFP ports, designed to deliver a maximum throughput of 10 Gbps with an oversubscription ratio of 4:1. It supports a maximum configurable MTU of 9192 bytes and is compatible with a range of XFP transceivers, including 10GBASE-ER, 10GBASE-LR, and 10GBASE-SR models. This module can be installed in either slot of the SRX5K-FPC-IOC Flex IOC, weighing approximately 1.6 lb (0.7 kg).


  • What is the maximum throughput of the port module with four 10-Gigabit Ethernet XFP ports?
    The maximum throughput is 10 Gbps.
  • Can the SRX-XFP-10GE-ER transceiver be used with this module?
    Yes, the SRX-XFP-10GE-ER model is supported.
  • What is the oversubscription ratio for this module?
    The oversubscription ratio is 4:1.
  • What is the highest MTU that can be configured on this hardware?
    The highest configurable MTU is 9192 bytes.
  • How many Ethernet ports does the module have?
    The module has 4 XFP Ethernet ports.
  • Are both SRX-XFP-10GE-LR and SRX-XFP-10GE-LR-ET transceivers compatible with the module?
    Yes, both transceiver models are compatible.
  • What types of cables and connectors are required for this module?
    It requires cables and connectors compatible with XFP Ethernet ports.
  • Is the 10GBASE-SR transceiver supported by this hardware?
    Yes, the hardware supports 10GBASE-SR transceivers, including models SRX-XFP-10GE-SR and SRX-XFP-10GE-SR-ET.
  • What slots is this module compatible with?
    It is compatible with either slot in SRX5K-FPC-IOC Flex IOC.
  • How much does the module weigh?
    The module weighs approximately 1.6 lb (0.7 kg).

Product Review

The Juniper SRX-IOC-4XGE-XFP-A port module enhances network capacity, offering four 10-Gigabit Ethernet XFP ports, suitable for high-bandwidth applications. However, its oversubscription ratio of 4:1 may limit performance under peak loads, potentially affecting data-intensive operations. Compatibility with various XFP transceivers and support for a maximum MTU of 9192 bytes ensure versatility and efficient network packet handling across diverse networking environments.


The Juniper SRX-IOC-4XGE-XFP-A is a high-performance port module designed to enhance network efficiency and scalability. This module is equipped with four 10-Gigabit Ethernet XFP ports, offering a maximum throughput of 10 Gbps. It is specifically engineered for use in the SRX5K-FPC-IOC Flex IOC slots, providing a seamless integration for network expansion or upgrades. One of the key features of this module is its support for a range of XFP transceivers, allowing for flexible network deployment based on distance and transmission requirements. The supported XFP models include: - 10GBASE-ER (SRX-XFP-10GE-ER and SRX-XFP-10GE-ER-ET), ideal for extended range applications. - 10GBASE-LR (SRX-XFP-10GE-LR and SRX-XFP-10GE-LR-ET), suited for long-range communication. - 10GBASE-SR (SRX-XFP-10GE-SR and SRX-XFP-10GE-SR-ET), designed for short-range connections. These transceivers enable the module to operate efficiently across various network environments, from data centers to large enterprise settings. The SRX-IOC-4XGE-XFP-A boasts a 4:1 oversubscription ratio, offering a balanced performance between high-speed data transfer and cost efficiency. This makes it an ideal choice for applications where bandwidth demand fluctuates, allowing network administrators to manage resources effectively without compromising on performance. With a maximum configurable Maximum Transmission Unit (MTU) of 9192 bytes, this module supports large data packets. This capability enhances network performance by reducing the need for packet fragmentation, leading to less overhead and improved throughput for large transfers or high-volume data streams. The physical specifications of the module include a weight of approximately 1.6 lb (0.7 kg), making it lightweight and easy to install or replace within the network infrastructure. The design is optimized for compatibility with the SRX5K series, ensuring a high level of integration and reliability for Juniper networking environments. Key hardware specifications include:
  • 4 XFP Ethernet ports, enabling high-speed network connections and flexible deployment options.
  • Support for a variety of XFP transceivers, catering to different network range needs.
  • An oversubscription ratio of 4:1, balancing performance and cost-effectiveness.
In summary, the Juniper SRX-IOC-4XGE-XFP-A is a versatile and efficient network module that provides high-speed connectivity and flexibility for evolving network requirements. Its support for multiple transceiver types, combined with a high throughput capacity and large MTU support, makes it a powerful addition to any network seeking to enhance performance, reliability, and scalability.


Item Number Juniper SRX-IOC-4XGE-XFP-A
Producer Juniper
Type 10-Gigabit Ethernet XFP port module
Peak Data Transfer Rate 10 Gigabits per second
Subscriptions Exceeding Capacity Ratio 1 to 4
Largest Supported MTU 9192 bytes
Connection Interfaces 4 XFP Ethernet connections
Installable Positions Any position within SRX5K-FPC-IOC Flex IOC
Mass 0.7 kg (approximately 1.6 lb)

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