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Cisco Nexus is a series of network switches.https://dudodiprj2sv7.cloudfront.net/product-logos/40/Lo/JJ0RW7AJDKDV.jpegCisco 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)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.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 R
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Cisco Nexus
24 Ratings
Score 7.8 out of 101
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Cisco Nexus Reviews

Cisco Nexus
24 Ratings
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Score 7.8 out of 101
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Jodi Pratt profile photo
August 13, 2018

Review: "Cisco Nexus - The Data Center Switch for the Next Generation"

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.
Read Jodi Pratt's full review
Josh Haberman profile photo
June 27, 2018

Cisco Nexus Review: "Database Network Backbone"

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.
Read Josh Haberman's full review
Damien GUESDON profile photo
January 31, 2018

Cisco Nexus Review: "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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January 30, 2018

Cisco Nexus Review: "Nexus: Great value, dense, and flexible!"

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
August 31, 2017

Review: "Why Coveo chose Cisco Nexus for its core network"

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
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March 02, 2017

User Review: "Cisco Nexus datacenter workhorse"

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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Amarnadh Eedpuganti profile photo
November 18, 2016

Cisco Nexus Review: "Nexus Pros and Cons in a nut shell"

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

Cisco Nexus Scorecard Summary

About Cisco Nexus

Cisco Nexus is a series of network switches.

Cisco Nexus Technical Details

Operating Systems: Unspecified
Mobile Application:No