TrustRadius
Cisco Nexus is a series of network switches.https://media.trustradius.com/product-logos/40/Lo/JJ0RW7AJDKDV.jpegNexus -- Warp Speed NetworkingOur organization uses Cisco Nexus devices in our data center as both our spine and leaf layers. These solve several problems for us: most notably, the packet forwarding is fantastic, but additionally, the simplicity of these devices having advanced troubleshooting tools and a usable programming interface (NX-API) really makes them quite valuable to our team.,Supported API. Fast Packet Forwarding. Advanced Troubleshooting Tools.,Obnoxious minor differences in syntax (when compared to other Cisco devices). When issues arise, they can range from innocuous to weird. Updates can be painfully difficult, or require "stepped-upgrades.",9,Faster Network Speeds. It brought our data center equipment back into supported territory. Allowed for the automation of network troubleshooting and changes.,Cisco Catalyst 6800 Series Switches,7,Arista 7000 series, Cisco 1000 Series Aggregation Services Routers (ASR 1000), Microsoft Office 365Cisco Nexus in service provider DCCisco Nexus switches are in the heart of our data centre providing an ACI software controlled fabric as well in a Nexus-OS software controlled [environment]. Multiple fabrics provide multiple location connectivity layers to our capacity hosts. APIC controlled Nexus fabric day 2 operation is fully automated so that only one-time onboarding infrastructure typed configurations are done via an APIC controller cluster.,Configuration from a centralized point High availability in an excellent level, not only physical components APIC for SDN,Licensing model is not so clear in all cases, for example the ACI license model changed QoS Hard to keep the SW level bug-free,9,Nexus fabrics are enablers for us to provide customer needed services. So it is mandatory to have a reliable backbone in the infrastructure No MIMs in an infrastructure caused by Nexus - no penalties paid to customers,Juniper Ethernet Switches,Juniper Enterprise Routers, Juniper Ethernet SwitchesCisco Nexus: Workhorse of the Data CenterCurrently our entire data center is supported by Cisco Nexus switches, specifically the Nexus 5600 series and 7000 series Nexus switches. These switches utilized in data center operations in a small to medium size data center. These switches support the need for extremely fast, low latency switches that are required for data center speeds.,Easy to use yet robust command line interaction Python support ISSU is available Support for VPC Fast, true near line rate speeds Powerful and stable hardware Well supported and updated operating system with robust online community support and manufacturer support,More Linux based commands Add more programming support in the 5k and 7k series switches. While support for programming and automation is very extensive some small improvements could be made Support for additional Python packages, support for more structure protocols like YML, YANG, XML, and JSON,9,Having Nexus switches in our data center has dramatically enhanced the entire data center performance. We expected this when we purchased our first Nexus switches in 2015. Because these switches are such workhorses, they've outlasted our expectations, often running at full capacity for the last four years while remaining relevant technology wise. This is an outstanding achievement for any product. Because of their longevity, they've allowed us to invest in other hardware for our datacenter.,,Microsoft Visio, PyCharmCisco Nexus rocks! Which is the usual when it comes to Cisco!We use Cisco Nexus for HA and as L3 for our backbone network. It rocks when it comes to high availability and stability.,High availability. Stability. Performance.,I cannot think of anything that the Nexus can't do!,10,Positive in all ways, it does more than what you can think off.,Database Network BackboneWe are using Cisco Nexus 7000, 5000, and 2000 series "switches" in our data center at our network operations center (NOC). The Nexus series allows us to centrally manage our data center network infrastructure without having to configure and support individual switches.,Centrally managed network configuration. Highly redundant network infrastructure. Application optimized network infrastructure.,There is a high learning curve for initial installation. Firmware updates require outages. NX-OS has some command differences from Cisco IOS requiring experienced Cisco Network Engineers to educate themselves before being fully effective.,7,Nexus has allowed us to reduce the time needed to create and maintain data network configurations. We're able to optimize application performance much better in the Nexus product line than under comparable IOS-based devices. The cost of implementing and maintaining a Nexus-based environment is significantly higher than IOS-based equivalent devices.Cisco Nexus - The Data Center Switch for the Next GenerationCisco Nexus switches are being used as core devices and data center server access switches throughout our company. These switches provide high throughput and density, with very little carbon footprint. The variety of switches you can purchase in the Nexus line is also a bonus. Our users want to be able to access data as quickly as possible, with fault transparency. The Cisco Nexus line of switches provides that capability. The modular switches allow my team to get exactly what type of access is needed, without having to buy multiple switches.,These switches are easily programmable. If you are looking at SDN but aren't quite there yet, this switch line is a great starting point. They support DevOps tools, which make automation extremely quick and efficient. There are so many options in this product line, making Nexus a great switch for pretty much any deployment. You can stack switches or use the modular switch, whatever fits your need. These switches support VXLAN, allowing for a multi-tenant network environment, and is perfect for cloud services.,The Nexus can run in two different modes, which can make it very difficult to configure. ACI mode is controller based, which is the direction Cisco is going. NX-OS mode is more classic switching. While the NX-OS mode is more classic, some configurations can still be different. For example, you have to turn features on before actually using them (dhcp, tacacs, etc) The licensing model is completely different. It is a learning curve.,9,While the capex may be higher than traditional switches, the ability to automate and manage the network with a single pane of glass, and use 3rd party apps to automate, makes the opex extremely low. With the ease of automation and multi-tenancy, you can get the business units what they need in a matter of minutes and not hours. There is a higher learning curve, and a lot of training needed to get the most out of the Nexus switches. So the ROI may not be realized until well after deployment, for newer engineers. Once implemented, I anticipate these switches should support the business units for at least 10 years.,Cisco Catalyst Switches, Aruba Networks Wireless, Extreme VCS Fabrics (formerly Brocade VCS Fabrics)Nexus 3024We deploy Cisco Nexus in our NROs. It fit perfectly to our need and is easy to install. We use them like access equipment to provide Fibre technology (FTTH). The model we choose is NXS 3024, which is for us the best ratio price/performance. It is used to provide about 20 Black fiber in a local area.,Access switch Dark fiber Trunk,Qos Mpls Snmp,8,Price Durable Few maintenance actions,Nexus: Great value, dense, and flexible!We use our Nexus 5548UPs for 10G switched connectivity for our compute as well as for routing over our WAN, to our ISP, and to other 1G network infrastructure.,Stability Value Density Flexibility,QoS not as full featured as routers Different commands than IOS L3 daughterboard instead of native L3,9,Lasted us 5+ years and provided a great collapsed core, so excellent value. Worked in both large offices and the datacenter - very versatile.,Why Coveo chose Cisco Nexus for its core networkWe use 2 Cisco Nexus as our core switches for our datacenter location. The servers in this location are that is left of our on-premises infrastructure. We wanted Nexus because we wanted something that was able to manage multiple 10Gbps links and we wanted something with renowned reliability.,Redundancy when used in cluster Configuration syncing when using a recent firmware Reliability,Config syncing when using firmware that came with it Fixing config sync problems Understanding how Nexus clusters work Understanding how to setup Nexus clusters Inability to use some Cisco branded SFP because of firmware version Inability to use some Cisco branded SFP because of "hardware" incompatibility even though the same SFP was working fine in Dell products,7,I cost us a lot of human time at first because of the steep learning curve to understand and setup the switch in cluster. Since initial setup, our core has operated without any incident and did not need admin intervention. Since we are 10Gbps between most of our servers, we diminished migration times of VMs between servers and backup times. Our users do not bottleneck at the network level when using the network shares anymore.,Dell Switches, Broadcom Switches and HP Switches,Cisco UCS B-Series, Cisco UCS C-Series, Dell PowerEdge RNexus Pros and Cons in a nut shellCisco Nexus is a very optimal solution for data centers that are still running on legacy architecture or the new cutting edge technologies like datacenter virtualization. The beauty of this particular product is Cisco took all the pain in the background for the new technologies in the datacenter infrastructure and they left it with straightforward configuration and architectural solutions to the industry. So we get optimal solutions with less effort, coming to the hardware. This state of the art hardware handles very high density data along with virtualization.,vPC, FCoE and IP in one hardware Very high density data capable hardware Optimal for virtualization in datacenters OTV capable,Cisco should keep maintaining the similarities between their NXOS, IOS and IOSXR/XE platforms so the engineer's work will be easy when it comes to troubleshooting.,9Cisco Nexus datacenter workhorseWe needed to take the step to [move to] 10Gigabit, and doing so on the Nexus platform is considerably cheaper then on the Catalyst 6500 platform. Furthermore we were looking into converged networks that were very suitable with the Nexus line of switches, which we later abandoned (not due to Nexus). Lastly the Nexus line of switches were built for the datacenter where we needed the 10G aggregation, and all the good features like lower latency, port-profiles, ISSU, FEX, etc.,Nexus line of switches terms gives unprecedented price/performance numbers. Nexus line of switches makes deploying network changes easier due to port-profiles, commit/rollback, API, etc. Nexus line of switches brings great versatility, whether you want cheaper edge ports (FEX), low latency (all switches really, but especially a 3k line), a converged network with DCB support, etc.,ISSU is not possible with servers using aggressive timers. This accounts for Windows Server 2012 for instance and can't be changed. Causing disruptive upgrades (can be minimised with VPC, but still drops). Same goes for Spanning-Tree, if you have any switches connected to the Nexus ISSU it's not possible without filtering BPDU or similar nonstandard changes. NX-OS has had a fairly high amount of critical bugs, the kind that makes the boxes crash and reboot. Higher scalabilty figures, the number of logical ports (VLANs pr.port * number of ports) are still quite low. If you allow all VLANs out all ports, you can only have around 100 VLANs, and quite a bit less pr.port if you use FEXes for scalability.,10,We have had good ROI for the Nexus purchase. It has enabled us to give thousands of servers access to 10G which allows for higher numbers of VMs to be used on a single host/switch port, let backups finish in time, etc.,Catalyst, Cisco Enterprise Routers, Cisco Ethernet Switches
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Cisco Nexus
42 Ratings
Score 8.5 out of 101
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Cisco Nexus Reviews

Cisco Nexus
42 Ratings
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Score 8.5 out of 101

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Score 9 out of 10
Vetted Review
Verified User
Review Source
Our organization uses Cisco Nexus devices in our data center as both our spine and leaf layers. These solve several problems for us: most notably, the packet forwarding is fantastic, but additionally, the simplicity of these devices having advanced troubleshooting tools and a usable programming interface (NX-API) really makes them quite valuable to our team.
  • Supported API.
  • Fast Packet Forwarding.
  • Advanced Troubleshooting Tools.
  • Obnoxious minor differences in syntax (when compared to other Cisco devices).
  • When issues arise, they can range from innocuous to weird.
  • Updates can be painfully difficult, or require "stepped-upgrades."
The Nexus platform does well at being a data center platform with modular software packages and options. It does a decent job at being a data center platform with a Cisco syntax (and at times it can really be annoying). I would advise its use in a Cisco dominated environment that has deep pockets (these things are NOT cheap). I wouldn't use them in a non-Cisco shop, or one that doesn't have the money to spend all in one place.
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Jyrki Halonen profile photo
Score 9 out of 10
Vetted Review
Verified User
Review Source
Cisco Nexus switches are in the heart of our data centre providing an ACI software controlled fabric as well in a Nexus-OS software controlled [environment]. Multiple fabrics provide multiple location connectivity layers to our capacity hosts. APIC controlled Nexus fabric day 2 operation is fully automated so that only one-time onboarding infrastructure typed configurations are done via an APIC controller cluster.
  • Configuration from a centralized point
  • High availability in an excellent level, not only physical components
  • APIC for SDN
  • Licensing model is not so clear in all cases, for example the ACI license model changed
  • QoS
  • Hard to keep the SW level bug-free
SDN driven infrastructure with APIC, easy to scale up fabric
Read Jyrki Halonen's full review
No photo available
Score 9 out of 10
Vetted Review
Verified User
Review Source
Currently our entire data center is supported by Cisco Nexus switches, specifically the Nexus 5600 series and 7000 series Nexus switches. These switches utilized in data center operations in a small to medium size data center. These switches support the need for extremely fast, low latency switches that are required for data center speeds.
  • Easy to use yet robust command line interaction
  • Python support
  • ISSU is available
  • Support for VPC
  • Fast, true near line rate speeds
  • Powerful and stable hardware
  • Well supported and updated operating system with robust online community support and manufacturer support
  • More Linux based commands
  • Add more programming support in the 5k and 7k series switches. While support for programming and automation is very extensive some small improvements could be made
  • Support for additional Python packages, support for more structure protocols like YML, YANG, XML, and JSON
Nexus is well placed already as the industry-wide as a standard data center, core, and backbone layer 3 series switches. Nexus switches are very capable to support any data center or core task. Everything required for this type of support is already packaged into the Nexus OS. Throw in ACI and they become a powerhouse for the data center, able to compete and, in most cases, outperform any other type of networking gear available today. However, because the ASIC is built more to support data center traffic and not access layer traffic, they're not intended for comm closets or edge switching in the enterprise.
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No photo available
Score 10 out of 10
Vetted Review
Verified User
Review Source
We use Cisco Nexus for HA and as L3 for our backbone network. It rocks when it comes to high availability and stability.
  • High availability.
  • Stability.
  • Performance.
  • I cannot think of anything that the Nexus can't do!
Cisco Nexus is appropriate for to use for a 10GB backbone, high availability, advanced routing, central point of failure, and gateway. It is less appropriate for small businesses and/or 1GB throughput environments.
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Josh Haberman profile photo
Score 7 out of 10
Vetted Review
Verified User
Review Source
We are using Cisco Nexus 7000, 5000, and 2000 series "switches" in our data center at our network operations center (NOC). The Nexus series allows us to centrally manage our data center network infrastructure without having to configure and support individual switches.
  • Centrally managed network configuration.
  • Highly redundant network infrastructure.
  • Application optimized network infrastructure.
  • There is a high learning curve for initial installation.
  • Firmware updates require outages.
  • NX-OS has some command differences from Cisco IOS requiring experienced Cisco Network Engineers to educate themselves before being fully effective.
Cisco Nexus products are very effective and efficient to manage in medium to large enterprise data centers. Smaller businesses, companies without their own data centers, or businesses with Cloud native "data centers" will see little to no benefit from Nexus products.
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Score 9 out of 10
Vetted Review
Verified User
Review Source
Cisco Nexus switches are being used as core devices and data center server access switches throughout our company. These switches provide high throughput and density, with very little carbon footprint. The variety of switches you can purchase in the Nexus line is also a bonus. Our users want to be able to access data as quickly as possible, with fault transparency. The Cisco Nexus line of switches provides that capability. The modular switches allow my team to get exactly what type of access is needed, without having to buy multiple switches.
  • These switches are easily programmable. If you are looking at SDN but aren't quite there yet, this switch line is a great starting point. They support DevOps tools, which make automation extremely quick and efficient.
  • There are so many options in this product line, making Nexus a great switch for pretty much any deployment. You can stack switches or use the modular switch, whatever fits your need.
  • These switches support VXLAN, allowing for a multi-tenant network environment, and is perfect for cloud services.
  • The Nexus can run in two different modes, which can make it very difficult to configure. ACI mode is controller based, which is the direction Cisco is going. NX-OS mode is more classic switching.
  • While the NX-OS mode is more classic, some configurations can still be different. For example, you have to turn features on before actually using them (dhcp, tacacs, etc)
  • The licensing model is completely different. It is a learning curve.
Cisco Nexus is well suited for small and large data center deployments. In controller mode, it is much easier to automate and orchestrate network administration. This frees up hours of time. VXLAN allows for greater flexibility and use of the infrastructure, by using an overlay over the existing layer 2 infrastructure. You are also no longer limited to 4096 Vlans. By using a 24-bit segment identifier, the switch can now handle up to 16 million Vlans. For any deployment, the ability to use open standard network automation tools is a huge advantage and time saver.
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Damien GUESDON profile photo
January 31, 2018

Nexus 3024

Score 8 out of 10
Vetted Review
Verified User
Review Source
We deploy Cisco Nexus in our NROs. It fit perfectly to our need and is easy to install. We use them like access equipment to provide Fibre technology (FTTH). The model we choose is NXS 3024, which is for us the best ratio price/performance. It is used to provide about 20 Black fiber in a local area.
  • Access switch
  • Dark fiber
  • Trunk
  • Qos
  • Mpls
  • Snmp
Perfectly suited for NROs Deployment in a local area: dark fiber for FTTH to provide high-speed internet to professional customers who need performance and reliability. We have about 30 sites based on this model, and we plan hundred more for the two net years. The price was also a good point to make our choice.
Read Damien GUESDON's full review
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Score 9 out of 10
Vetted Review
Verified User
Review Source
We use our Nexus 5548UPs for 10G switched connectivity for our compute as well as for routing over our WAN, to our ISP, and to other 1G network infrastructure.
  • Stability
  • Value
  • Density
  • Flexibility
  • QoS not as full featured as routers
  • Different commands than IOS
  • L3 daughterboard instead of native L3
10G connectivity down to compute with a dense form factor as well as for terminating routed connections, particularly when it’s SFP based handoff.
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Marc-Olivier Turgeon-Ferland profile photo
Score 7 out of 10
Vetted Review
Verified User
Review Source
We use 2 Cisco Nexus as our core switches for our datacenter location. The servers in this location are that is left of our on-premises infrastructure. We wanted Nexus because we wanted something that was able to manage multiple 10Gbps links and we wanted something with renowned reliability.
  • Redundancy when used in cluster
  • Configuration syncing when using a recent firmware
  • Reliability
  • Config syncing when using firmware that came with it
  • Fixing config sync problems
  • Understanding how Nexus clusters work
  • Understanding how to setup Nexus clusters
  • Inability to use some Cisco branded SFP because of firmware version
  • Inability to use some Cisco branded SFP because of "hardware" incompatibility even though the same SFP was working fine in Dell products
It is really well suited if you need an always-up core switch and still want to sometimes update/reboot one of the switches.

I don't think that for this price Cisco Nexus is well suited for standalone use except maybe if you use all the 10Gbps ports as it is a symmetric backbone.
Read Marc-Olivier Turgeon-Ferland's full review
Amarnadh Eedpuganti profile photo
Score 9 out of 10
Vetted Review
Verified User
Review Source
Cisco Nexus is a very optimal solution for data centers that are still running on legacy architecture or the new cutting edge technologies like datacenter virtualization. The beauty of this particular product is Cisco took all the pain in the background for the new technologies in the datacenter infrastructure and they left it with straightforward configuration and architectural solutions to the industry. So we get optimal solutions with less effort, coming to the hardware. This state of the art hardware handles very high density data along with virtualization.
  • vPC, FCoE and IP in one hardware
  • Very high density data capable hardware
  • Optimal for virtualization in datacenters
  • OTV capable
  • Cisco should keep maintaining the similarities between their NXOS, IOS and IOSXR/XE platforms so the engineer's work will be easy when it comes to troubleshooting.
[It is well suited for] vPC, OTV and FCoE and IP mixed environments.
Read Amarnadh Eedpuganti's full review
No photo available
Score 10 out of 10
Vetted Review
Verified User
Review Source
We needed to take the step to [move to] 10Gigabit, and doing so on the Nexus platform is considerably cheaper then on the Catalyst 6500 platform. Furthermore we were looking into converged networks that were very suitable with the Nexus line of switches, which we later abandoned (not due to Nexus). Lastly the Nexus line of switches were built for the datacenter where we needed the 10G aggregation, and all the good features like lower latency, port-profiles, ISSU, FEX, etc.
  • Nexus line of switches terms gives unprecedented price/performance numbers.
  • Nexus line of switches makes deploying network changes easier due to port-profiles, commit/rollback, API, etc.
  • Nexus line of switches brings great versatility, whether you want cheaper edge ports (FEX), low latency (all switches really, but especially a 3k line), a converged network with DCB support, etc.
  • ISSU is not possible with servers using aggressive timers. This accounts for Windows Server 2012 for instance and can't be changed.
  • Causing disruptive upgrades (can be minimised with VPC, but still drops).
  • Same goes for Spanning-Tree, if you have any switches connected to the Nexus ISSU it's not possible without filtering BPDU or similar nonstandard changes.
  • NX-OS has had a fairly high amount of critical bugs, the kind that makes the boxes crash and reboot.
  • Higher scalabilty figures, the number of logical ports (VLANs pr.port * number of ports) are still quite low. If you allow all VLANs out all ports, you can only have around 100 VLANs, and quite a bit less pr.port if you use FEXes for scalability.
Best Suited:
Converged Datacenter
10G Aggregation
Low latency requirements

Less suited:
Branch office (cost)
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About Cisco Nexus

Cisco Nexus is a series of network switches.

Cisco Nexus Technical Details

Operating Systems: Unspecified
Mobile Application:No