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Description
Allied Telesis 16-Port 1g/10g Sfp+ Stackable Switch with 2 QSFP PortsMeet a high performance, enterprise grade networking solution designed to scale with growing data demands: the Allied Telesis x550 18XSQ Stackable Switch. This 16 port, 1G 10G SFP+ switch is engineered to deliver flexible fiber connectivity, rapid uplink capacity, and resilient Layer 3 routing in a compact, stackable form factor. With two 40G QSFP uplinks and the proven reliability of AlliedWare Plus OS, this switch is ideal for data centers, campus
Meet a high-performance, enterprise-grade networking solution designed to scale with growing data demands: the Allied Telesis x550-18XSQ Stackable Switch. This 16-port, 1G/10G SFP+ switch is engineered to deliver flexible fiber connectivity, rapid uplink capacity, and resilient Layer 3 routing in a compact, stackable form factor. With two 40G QSFP uplinks and the proven reliability of AlliedWare Plus OS, this switch is ideal for data centers, campus cores, and distribution layers that require robust performance, intelligent management, and fault-tolerant networking. It’s built to simplify deployment, streamline operations, and future-proof your network as you scale.
- Exceptional performance for today and tomorrow: Designed to handle demanding traffic patterns, the x550-18XSQ combines high-speed switching with efficient routing features. Its architecture supports non-blocking forwarding for multiple 1G/10G sessions while enabling seamless expansion through stacking and uplink aggregation.
- Flexible port configuration with 16 SFP+/1G/10G slots: Each of the 16 SFP+ ports supports a broad range of fiber transceivers, delivering the versatility you need to connect access, distribution, and edge devices. This flexible port mix helps optimize cabling, reduce costs, and simplify changes as your network evolves.
- Two 40G QSFP uplinks for scalable connectivity: Pair two high-capacity QSFP ports for rapid uplink to core routers, data centers, or aggregation switches. The 40G uplinks provide ample headroom for high-traffic backbones, heavy virtualization workloads, and future expansion without bottlenecks.
- Stackable for high availability and simplified growth: Integrate the x550-18XSQ with other compatible Allied Telesis switches to create resilient, scalable stacks. Stacking enables centralized management, simplified fault isolation, and seamless policy propagation across all members of the stack.
- Enterprise-grade AlliedWare Plus OS with EPSRing protection: The switch runs AlliedWare Plus, a feature-rich operating system designed for reliability and security. EPSRing Ethernet Protection Switched Ring delivers fast, deterministic failover to maintain uptime in the event of a link or device failure.
Technical Details of Allied Telesis 16-Port 1G/10G SFP+ Stackable Switch with 2 QSFP Ports
- Ports: 16 x 1G/10G SFP+ slots for flexible fiber connectivity
- Uplink: 2 x 40G QSFP uplinks for high-bandwidth connections to core or aggregation devices
- Operating System: AlliedWare Plus, Enterprise-class network OS with rich QoS, VLAN, and routing features
- Protection and availability: EPSRing Ethernet Protection Switched Ring for rapid failover and network resiliency
- Routing: Layer 3 capabilities to support static and dynamic routing in small to mid-size deployments
- Management: Web GUI, Command-Line Interface (CLI), SNMP for centralized monitoring and control
- Stacking: Stackable with compatible Allied Telesis switches to simplify management and scale out
- Physical form factor: 1U rack-mountable chassis designed for data centers and enterprise wiring closets
- Power and cooling: Standard AC power with internal cooling designed for continuous operation
- Standards supported: IEEE 802.3, 802.1Q VLAN tagging, QoS, ACLs, and IPv4/IPv6 routing features
- Security: Access control and management security features aligned with enterprise network policies
How to Install Allied Telesis 16-Port 1G/10G SFP+ Stackable Switch with 2 QSFP Ports
Installing the x550-18XSQ is straightforward and designed to minimize downtime. Follow these guidelines to deploy quickly and safely, while ensuring optimal performance and reliability.
- Unpack and inspect: Verify the rack-mount hardware, mounting brackets, and power cords. Check for any shipping damage and ensure you have the correct SFP/SFP+ and QSFP transceivers for your network fabric.
- Prepare the rack: Install the switch in a standard 19-inch rack. Ensure proper ventilation and clear airflow around the unit. Leave sufficient space for cable management and two QSFP uplink cables.
- Connect power: Attach the power cord and power-on the switch. If you have a redundant power setup, connect the second power supply as per your data center’s power policy.
- Install transceivers and cables: Insert SFP/SFP+ modules into the 16 ports and connect fiber optic or copper-cable links as required. Run the two 40G QSFP uplinks to your core or aggregation devices with appropriate breakout or direct-attach cables, based on your topology.
- Initial access and firmware: Connect a management workstation to the switch via Ethernet or console cable. Access the AlliedWare Plus CLI or web GUI. Check the firmware version and apply any recommended updates to ensure you have the latest security and performance improvements.
- Basic configuration: Configure management interfaces, set up IP addresses, and secure administrative access. Enable essential features such as VLANs, QoS policies, and basic ACLs to begin segmentation and traffic control.
- Stack configuration: If you’re building a stack, connect stacking cables between compatible units according to the vendor’s guidelines. Define a stack master and enable stack-wide policies for consistent behavior across all members.
- Routing and services: Activate Layer 3 routing as needed (static or dynamic), configure dynamic routing protocols if required, and set up VRFs or routing tables to support multi-tenant environments. Implement QoS and security policies aligned with your organization’s requirements.
- Verification: Validate connectivity by testing inter-VLAN routing, uplink stability, and traffic flow across the stack. Monitor system logs and performance metrics to confirm healthy operation and to identify any configuration refinements needed.
Note: For specific cabling configurations, transceiver compatibility, and stacking details, refer to Allied Telesis documentation or your authorized reseller guidance. Always verify cable lengths and fiber types to maintain signal integrity across links.
Frequently asked questions
What makes the Allied Telesis x550-18XSQ a good choice for data centers?
The x550-18XSQ provides a balance of flexible port options, high-speed uplinks, and enterprise-grade features in a stackable form factor. Its 16 SFP+/1G/10G ports allow diverse fiber deployments, while two 40G uplinks give you headroom for core or aggregation connections. With AlliedWare Plus and EPSRing protection, you gain reliable uptime and robust management capabilities that are well-suited for mid-size data centers and campus networks.
What is EPSRing and how does it benefit network reliability?
EPSRing is AlliedTelesis’s Ethernet Protection Switched Ring technology. It rapidly detects faults and reconfigures the network to maintain traffic flow, minimizing downtime in the event of link or switch failures. This protection is especially valuable in stacked configurations where shared uplinks and multi-switch paths exist.
Can this switch be stacked with other Allied Telesis devices?
Yes. The x550-18XSQ is designed to be stackable with compatible Allied Telesis switches, enabling centralized management, consistent policies, and improved fault tolerance across multiple stack members. Stacking simplifies growth and reduces the complexity of large-scale deployments.
What management options are available for configuration and monitoring?
You can manage the switch via a web-based GUI, a CLI, or SNMP, depending on your network operations preferences. AlliedWare Plus offers a comprehensive feature set for VLANs, QoS, ACLs, routing, and security, along with monitoring tools to track performance, health, and security events.
What should I consider when choosing transceivers for the SFP+ ports?
Select transceivers based on your distance and link requirements (SR, LR, or other types). For fiber links, choose modules compatible with SFP+ ports. If you plan to use QSFP uplinks with breakout configurations, ensure you have compliant breakout cables and the corresponding switch configurations to support the intended topology.
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4.6 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Remarkably Bright Creatures
Format: Hardcover
emarkably Bright Creatures is one of those rare novels that effortlessly sneaks into your heart and makes itself at home. It centers on Tova Sullivan, a seventy‑year‑old widow quietly trying to fill the empty spaces left by loss, and Marcellus, a brilliantly observant giant Pacific octopus at the Sowell Bay Aquarium whose voice is as wise as it is wry. Their unlikely friendship is at once funny, tender, and deeply affecting, gently guiding the story through themes of grief, hope, aging, and connection.
The book also weaves in Cameron, a young man adrift in life, and slowly threads all three characters’ paths together into a quietly powerful emotional journey. What I loved most was how the narrative balances genuine humour and surprising warmth with profound reflections on family, forgiveness, and new beginnings — all without ever feeling forced or overly sentimental.
Shelby Van Pelt’s debut is beautifully written, full of subtle moments that stick with you long after the final page. Whether it’s Marcellus’s clever asides, Tova’s resilient heart, or the way the story reminds you that healing can come from the most unexpected places, this book is a joy to read.
Rating: ★★★★★ — a truly special read I’ll remember for a long time.
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Reviewed in the United States on April 9, 2026
★★★★★ 5
Astonishing, Fun, Entertaining, Fantastic
Format: Kindle
I consider The Martian my favorite fictional novel of the last 15-20 years. The movie was incredible in that they actually followed the book closer than 99% of other films based on books. It remains my favorite movie of the last 15 years or so as well. I don't know anyone (personally) that loves either of them as much as I do.
With that said, I was REALLY looking forward to Artemis. It was good...but, it was certainly not in the same caliber as The Martian was (at least not for me). I enjoyed it a lot, however and appreciated how author Andy Weir chose to go in a completely different direction and not just rehash another similar story, which I am certain would have been great as well.
As a result, I was cautious regarding Project Hail Mary. It sounded a little too close to The Martian, but yet, also different in that the circumstances simply could not be more opposite and the stakes so much higher. I'm trying to figure out the best way to summarize without giving too much away from this utterly compelling novel. As I read several reviews, I noticed a recurring theme: SCIENCE. Lots and LOTS of science. Holy cow, they were right. Many years ago I read Apollo 13 and Jim Lovell and his co-writer, try as they might, simply could not dumb down Orbital Mechanics anywhere near enough for me to have even a minor clue as to what they were attempting to say...I just skipped 90% of it and hoped that the sentences written afterwards, would help to make sense of what I had just skimmed over. I'm a lot of things, but a math wizard is definitely not one of them. Michael Crichton (Jurassic Park) had an amazing talent for dumbing-down the science of what he was trying to explain in ways that genuinely made sense (most of the time). Not everyone has this talent, and I would say Andy Weir falls squarely in between. He's certainly better than Jim Lovell, but not quite as good as Crichton. But then again, outside of a science textbook, I haven't really read anything with quite as MUCH science as Project Hail Mary. So maybe he's just as good, but he just puts more science into his books than Crichton, maybe that's it...? Either way, be prepared for a lot of astonishingly interesting science within the pages of this novel...and I DO mean a LOT. I don't say this to make you wary or steer you away...on the contrary, Andy Weir has a special talent for making hard science truly entertaining.
The book opens with an absolutely amazing and frightening premise: an astronaut awakes from an induced coma to find the only other two people on board have died at some point along their journey...but it gets worse. He has no idea who he is, or why he's on the ship, and oh yeah, they look to be a long way from home. A really, REALLY long way from home. In fact, the sun he sees isn't actually OUR sun at all. He's managed to leave our solar system entirely. And he has no idea why.
((Minor Spoilers)) The book goes through some clever flash-backs, which set the stage for why the mission happens, and slowly, carefully explains how they managed to get so far away from earth in such a short amount of time. Basically, earth's sun seems to be dying. At the rate of decay, we have maybe 19 years left before the gradual cooling has catastrophic consequences resulting in the death of billions (best guess). Why the sun is dimming is quite the conundrum in the first place. Turns out it really isn't dying, it's being killed by an outside source...which turns out to be easily the greatest find in history. It's alien life, and they are using the sun for food, essentially. It's alien life, but not intelligent life. But still, wow! ALIENS, right???
After this monumental discovery, and some tremendous research done by the most improbable scientist, the investigation into what is happening and why and what to do about it expands exponentially to other nations in order to pool all the resources possible to hopefully save the sun, and by extension, the human race as well. They learn. A LOT. A plan is put together, and with the help of the newly discovered microscopic alien life, which can also double as a power source (along with a few other nifty surprises), they begin to create one last, Hail Mary that could very well be the last chance we might have to save earth. It's audacious. It's dangerous, and it is absolutely critical that it succeed.
As our astronaut's memory slowly unravels, so does his identity: Ryland Grace. He's a teacher on earth. Just a science teacher. Not even a college professor. He's amazingly smart, though. But he's no astronaut...and certainly not one who would volunteer to go on a one-way mission to another solar system to "try" and save humanity. Yet here he is. Alone. light years from earth, trying to solve the biggest riddle in all of human history. Ryland accepts his situation, such as it is, with relative indifference (for the most part). It doesn't matter HOW he got here. He's here now and he may as well use that time to be as productive as possible, right? Along the way, he unravels even more information regarding the microscopic alien life which is slowly dimming our sun during some additional flashbacks. The aliens, dubbed, "Astrophage" are quite the galactic plague as it turns out. Stars all over the galaxy are also losing their light, all due to the little buggers. All that is, except one particular star named, Tau Ceti. Now why would that one star be unaffected by Astrophage, when every single star around it has been affected to some degree. The plan is to go there and figure it out and send the information back, hopefully in time to save the sun before the damage to earth is beyond repair.
There is an incredible amount of stuff going on. The story switches from Tau Ceti to flashbacks of how the whole mission was planned and implemented (which is VERY entertaining, especially Director Stratt, who may actually be my favorite character in the entire novel). Weir is becoming quite adept at building tension, and abruptly switching the story from Tau Ceti back to earth and building more of the backstory then switching back to Tau Ceti. Keeping it all in check and most importantly, interesting all while mixing in a healthy dose of science, which I am to understand is pretty much all genuine, is quite the juggling act. I have long known science can be astronomically entertaining (see what I did there?) when done right...but unfortunately very few people in a position to teach science actually know the best way to create that interest in others. I can say without reservation, Andy Weir definitely knows how to do it...at least in written form.
There is so much I want to say more regarding this truly phenomenal story, but I simply cannot without ruining a lot of the fun and surprises revealed along the way...and it is killing me to keep it locked in. Though I labeled a spoiler warning earlier, I don't think it gave away any more than what the author himself has revealed in interviews he has done regarding the book, and what you can glean from reading the summary here and just a couple other reviews. Tying all of that science together is truly astonishing to me. The creativity to put it into a novel that is remarkably exciting to read is nothing more than incredible talent. Kudo's to Andy Weir for not just hitting a home run, Project Hail Mary is a Grand Slam all the way. I truly did not want this story to end. By the way, I enjoyed the ending quite a bit. I don't know if everyone will. But it was fine for me. I think the ending screams "sequel" at some point too. A lot was left open-ended (IMO) and I wouldn't mind reading a follow-up to this. It doesn't HAVE to happen, but there are a lot of ways where the story could go if Andy chose to do it. Just sayin'.
Just run out and buy this book.
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Reviewed in the United States on May 10, 2021
★★★★★ 5
Wonderful
Format: Kindle
The amount of detail in this book is so interesting and the specifics of so much theoretical ideas revolving around true ideas makes it so fun to read. The writer does a great job and describing every situation enough where you get the point but not too much to try to bore you . The book is very easy to follow, keeps you on your toes, was pretty funny to me, and truthfully just a great book for anyone!
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Reviewed in the United States on May 20, 2026
★★★★★ 4
Read it in 2 days
Format: Paperback
This is science based science fiction. How refreshing to read science without turning the story into horror. Without a plethora of characters, it is easy to remember who is who. The story moves along well enough that I wanted to keep going. It us a p age turner in many respects.
All this said, there were too many crises suddenly resolved like some Star Trek episode from 1966. It reached the point where I said to myself, "OK, this doesn't matter. Move along, nothing to see here."
There was good humor, some surprising twists, and enough involvement with characters that I didn't want to put it down.
As science fiction goes, it was good like pulp stories go. It wasn't like Ursula LeGuin or Robert Heinlein but I would probably pick up the next book he writes.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Excellent story
Format: Kindle
This book is worth your time. It is a great introduction to a variety of scientific disciplines without insulting the reader. It also respects and understands humanity, engineering, history and political science. Then it lays that foundation to tell the story of a unique friendship of two beings with mutual goals who have to communicate and problem solve together. Along the way, you can really contrast how Grace and Rocky do it, vice the Hail Mary team did it.
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Reviewed in the United States on May 22, 2026