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Spare routing engine matched perfectly.
RE-PTX-X8-128G-S-S
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PTX Routing Engine , 8 core 2.3Ghz with 128G Memory, Secure...
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RE-PTX-X8-128G-S-S
- Description:
- PTX Routing Engine , 8 core 2.3Ghz with 128G Memory, Secure Boot, Spare for PTX5K
- Rating:
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- Brand:
- Juniper
- GTIN:
- 705595731246
- Condition:
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RE-PTX-X8-128G-S-S Overview
RE-PTX-X8-128G-S-S is a high-performance Ethernet module engineered to deliver reliable 10Gbps connectivity for modern data centers and enterprise networks. Designed with an SFP+ connector and a PCIe form factor, it ensures seamless integration with leading routers, switches, and servers while supporting critical protocols such as TCP/IP and iSCSI.
Optimized for expanding network capacity and upgrading server interfaces, this module features robust construction and efficient data handling to meet rigorous operational demands. Its design supports straightforward installation and offers vital features like auto-negotiation, Wake-on-LAN, jumbo frames, and quality of service, making it ideal for environments where high-speed, dependable connectivity is paramount.
RE-PTX-X8-128G-S-S price is is available on request. Get immediate quote.
Request bulk order quote for RE-PTX-X8-128G-S-S for additional pricing. Browse the full Juniper Router Ptx Modules & Cards series or explore all Juniper products.
RE-PTX-X8-128G-S-S Specifications
- Weight
- N/A
- Height
- N/A
- Depth
- N/A
- Width
- N/A
- Power Consumption
- 15W
- Expansion Slots
- N/A
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Connector Type
- SFP+
- Module Type
- Ethernet
- Max Speed
- 10Gbps
- Interface Ports
- Ethernet
- Product Type
- Network Module
- Supported Features
- Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS
- Form Factor
- PCIe
- Compatibility
- Cisco, Juniper, Arista, Dell, HP
- Data Rate
- 10Gbps
- Supported Protocols
- TCP/IP, iSCSI
- Product Name
- RE-PTX-X8-128G-S-S
RE-PTX-X8-128G-S-S Use Case
High-Throughput Data Center Spine Aggregation with RE-PTX-X8-128G-S-S-PTX
In a hyperscale data center, the RE-PTX-X8-128G-S-S-PTX Routing Engine (8-core 2.3 GHz, 128 GB memory, Secure Boot) serves as a spine aggregator for 400 GE pod uplinks. Deployed as a hot-swap spare for PTX5K, it enables zero-impact maintenance while Secure Boot guarantees firmware integrity. Outcome: 50% higher throughput, sub-10 μs latency, and 99.999% network availability.
5G Edge Routing and Network Slicing for Service Providers
A Tier 1 mobile operator installs RE-PTX-X8-128G-S-S-PTX at distributed 5G edge POPs to orchestrate dynamic network slices and ultra-low-latency traffic steering. The 8-core CPU handles 20 Mpps, 128 GB memory scales massive BGP/PLS tables, and Secure Boot prevents unauthorized firmware tampering. Outcome: 40% faster slice provisioning, 30% SLA-driven reliability, and 25% OPEX reduction.
Ultra-Low-Latency WAN Acceleration for Financial Trading
A global trading firm deploys RE-PTX-X8-128G-S-S-PTX across colocation sites to accelerate market data and order-entry traffic. Its deterministic 8-core 2.3 GHz routing engine and 128 GB memory for TCAM/ARP caching deliver predictable sub-100 µs forwarding, while Secure Boot ensures compliance. Outcome: 15% reduction in round-trip latency, improved execution speed, and enhanced network security.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| RE-PTX-X8-128G-S-S |  P2-10G-40G-QSFPP |  PSM2-PTX-DC-BB |  CB-SFF-PTX-BB |  PSM-SFF-PTX-DC-S | |
|---|---|---|---|---|---|
| Product Type | Network Module | Fiber Transceiver Module | Network Module / Network Card | Network Card | Network Module / Network Card |
| Module Type | Ethernet | QSFP+ | Ethernet | Ethernet | SFP+ |
| Data Rate | 10Gbps | 10Gbps / 40Gbps | 10G | 10Gbps | 10G |
| Connector Type | SFP+ | QSFP+ | SFP+ | SFP+ | SFP+ |
| Supported Protocols | TCP/IP, iSCSI | Ethernet, TCP/IP | TCP/IP, iSCSI | TCP/IP / iSCSI | TCP/IP / iSCSI / Fibre Channel |
| Form Factor | PCIe | Modular | PCIe | PCIe | PCIe |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco, Juniper, Arista, Dell, HP | Cisco, Juniper, Arista, Dell, HP | Cisco, Juniper, Arista, Dell, HP | Cisco / Juniper / Arista / Dell / HP | Cisco / Juniper / Arista / Dell / HP |
| Max Speed | 10Gbps | 40Gbps | 10Gbps | 10Gbps | 10Gbps |
| Supported Features | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Digital diagnostics monitoring, Link fault pass through, Auto-negotiation | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation / Jumbo Frames / QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS |
| Power Consumption | 15W | 4.0W | 15W | 5W | 7W |
| Interface Ports | Ethernet | QSFP+ | Ethernet | SFP+ | SFP+ |
| Expansion Slots | N/A | N/A | N/A | PCIe | PCIe |
| Product Name | RE-PTX-X8-128G-S-S | P2-10G-40G-QSFPP | PSM2-PTX-DC-BB | CB-SFF-PTX-BB | PSM-SFF-PTX-DC-S |
| Height | N/A | N/A | 0.72 inches | 1.2 inches | 0.5 inches |
| Width | N/A | N/A | 3.4 inches | 3.5 inches | 1.7 inches |
| Depth | N/A | N/A | 5.0 inches | 0.5 inches | 3.5 inches |
| Weight | N/A | N/A | 1.2 lbs | 1.2 lbs | 0.2 lbs |
Reviews & Ratings
N
Nathan Ridgway
4
Good standby for critical systems.
D
Daniel Woodcroft
5
No issues during swap testing.
S
Simon Hardwick
4
Reliable spare unit.
V
Victor Ellsworth
5
Ready when needed.
Questions & Answers
What is the PTX Routing Engine RE-PTX-X8-128G-S-S?
The RE-PTX-X8-128G-S-S is a high-performance PTX Routing Engine featuring an 8-core 2.3 GHz processor, 128 GB of memory, Secure Boot and designed as a spare module for PTX5000 series routers.
What key features does RE-PTX-X8-128G-S-S offer?
This routing engine offers an 8-core 2.3 GHz CPU, 128 GB DRAM, Secure Boot support, hot-swap capability, redundant power forwarding and full compatibility with Junos OS on PTX5000 platforms.
Which routers are compatible with RE-PTX-X8-128G-S-S?
The RE-PTX-X8-128G-S-S is fully compatible with Juniper PTX5000 series routers, including PTX5K-24, PTX5K-48 and PTX5K-96, when used as a spare or replacement routing engine.
How do I install the RE-PTX-X8-128G-S-S in a PTX5K router?
To install the RE-PTX-X8-128G-S-S, power down the PTX5K chassis, slide the existing module out, insert the new engine until it clicks, secure the retention screws and power on the system.
Does the RE-PTX-X8-128G-S-S support Secure Boot?
Yes. The RE-PTX-X8-128G-S-S includes Secure Boot functionality that verifies firmware integrity during startup, ensuring only authenticated code executes on your PTX5000 router.
What performance benefits does the 8-core 2.3 GHz CPU deliver?
The 8-core 2.3 GHz processor delivers multi-threaded packet processing, accelerated control-plane performance and reduced latency under high traffic loads on PTX5000 series platforms.
How does 128 GB of memory improve routing performance?
With 128 GB of DRAM, the RE-PTX-X8-128G-S-S provides larger routing tables, faster route lookups and enhanced multi-service support to maintain low-latency forwarding at scale.
Is the RE-PTX-X8-128G-S-S hot-swappable?
Yes. The RE-PTX-X8-128G-S-S supports hot-swap operations, allowing you to replace or install the module without powering down the PTX5K chassis for uninterrupted network uptime.
Can I use this engine as a dedicated spare module?
Absolutely. The RE-PTX-X8-128G-S-S is specifically designed as a spare routing engine for PTX5000 series routers, ensuring rapid replacement and minimal service disruption.
What are the power and cooling requirements?
The RE-PTX-X8-128G-S-S consumes up to 200 W under full load and integrates with the PTX5K chassis power and cooling infrastructure, requiring no additional external fans or power supplies.
How do I update the firmware on RE-PTX-X8-128G-S-S?
Use Junos OS CLI or J-Web to upload the firmware image to the RE, then execute the ‘request system software add’ command. The module will auto-reboot into the new release.
Which management interfaces are available?
The engine provides an out-of-band Management Ethernet port, a USB console port and an in-band control-plane interface through the PTX5K fabric for full remote and local administration.
Does the RE-PTX-X8-128G-S-S run Junos OS?
Yes. The RE-PTX-X8-128G-S-S runs Junos OS natively, offering feature parity with other PTX engines, including MPLS, EVPN, Segment Routing and advanced QoS capabilities.
What warranty and support options are available?
Juniper provides a one-year limited hardware warranty on the RE-PTX-X8-128G-S-S, with optional advanced replacement, extended maintenance and 24/7 technical support contracts.
Where can I purchase the RE-PTX-X8-128G-S-S spare module?
You can order the RE-PTX-X8-128G-S-S through authorized Juniper resellers, distributors or the Juniper online store. Contact your regional sales manager for lead times and pricing.