Engineer at a comms service provider with 10,001+ employees
Benefits of Juniper vs Cisco
Both are decent products. I prefer Juniper for the following reasons:
1) Cleaner separation of data plane from control plane. Higher end Cisco devices are better at this but most of the lower end products still seem to be more integrated than I like.
2) The Hierarchical config design means I can make changes only in areas that concern me without necessarily impacting other areas.
3) Easier rollback when one makes mistakes
4) I think there are less bugs/vulnerabilities in Junos vs IOS.
5) iOS has too many flavors leads to confusion with deployment.
One more advantage of junos over iOS. Juniper adheres closer to the standards than Cisco. Epigraph is nice, auto rp is cool, but with the less protocols in the standards it's much earlier to configure junos.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Engineer with 501-1,000 employees
I found it to be difficult to make the transition from Cisco to Juniper as far as the CLI goes.
Overall, the equipment is pretty good and more affordable than some other solutions. I found it to be difficult to make the transition from CISCO to Juniper as far as the CLI goes, maybe thats just me. I also had more than one instance where a switch would just stop working and I would have to reload the firmware on it and reconfigure it to get it back up and running. This caused me to purchase backup devices to minimize downtime and really cut into the cost savings over CISCO.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
There's a learning curve for sure but it's definitely a better CLI and it appears Cisco agrees going by the changes in IOS-XR. Once you get your heard round using a tiered structure it just makes more sense. Config tools that JunOS offers like copy, replace and move are really handy if you learn how to use them. These can save you a lot of time. What else...
Commit check / confirm / comment
rollback
traceroute monitor
monitor interface
stacking of pipe "|" commands for example: show interface | match xe | match error
Show configuration | display set
I strongly advise you start looking at and backing up configs using the later format. Sometimes the standard hierarchical display can be easier to read and spot mistakes but for copy and pasting config it's much easier to use the "set" display format. Avoiding using "load merge terminal" will save you headaches IMHO.
Once you learn the power of all the show and config command options start looking at JunOS Scripts - then you'll be blown away.
Also if you have access Juniper offer a IOS to JunOS conversion tool... i2j.juniper.net/release/index.jsp
Buyer's Guide
Juniper EX Series Ethernet Switches
September 2026
Learn what your peers think about Juniper EX Series Ethernet Switches. Get advice and tips from experienced pros sharing their opinions. Updated: September 2026.
913,683 professionals have used our research since 2012.
IT Administrator at a tech consulting company with 51-200 employees
Impressive features but switches are facing tough competition
Pros and Cons
- "From the technology point of view quality, design, and look-and-feel is good."
- "I felt that on-site and telephone support is not satisfactory."
Valuable Features:
From the technology point of view quality, design, and look-and-feel is good. Network administrators can easily manage and configure these network switches. I have easily configured an L3 switch to create a network campus backbone. Low maintenance required. No certification (CCNA, CCIE) is required to become a network administrator to set up a Juniper network.
Room for Improvement:
During price negotiation we found that price is high compared to other switches. High price is obstructing sales in market. I felt that on-site and telephone support is not satisfactory.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Network And Security Engineer at TechProTn
A stable product that needs improvement in UI
Pros and Cons
- "The tool's most valuable feature is stability."
- "Juniper EX Series Ethernet Switches is not cheap. The tool needs improvement in UI."
What is our primary use case?
We use the product in data centers.
What is most valuable?
The tool's most valuable feature is stability.
What needs improvement?
Juniper EX Series Ethernet Switches is not cheap. The tool needs improvement in UI.
What do I think about the stability of the solution?
The tool is very stable.
What do I think about the scalability of the solution?
Juniper EX Series Ethernet Switches' scalability is high.
How was the initial setup?
I rate the tool's deployment a ten out of ten.
What other advice do I have?
I rate Juniper EX Series Ethernet Switches a ten out of ten.
Which deployment model are you using for this solution?
Private Cloud
Disclosure: My company has a business relationship with this vendor other than being a customer. Partner
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Updated: September 2026
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Either vendor has a switch that will do the job. However I perferer Juniper due to
a. rollback is quick and easy in the event of issues arising from chnages
b. easier fault finding (once you get your head around how its implemented)
c. no need check the switch to find which OS feature set is installed and if memory / flash upgrade is required - its all in the OS with very few licenses (usually none) required to get full functionality if you have select the correct product in the first place
d. Hierarchical config is much easier to follow - great concept that most programmers can pickup quickly
e. don't need to learn different variants of the CLI as is required on IOS (even HP manage to stay relatively consistent there)
f. decent speed stacking interfaces on enterprise grade switches (particular 4x00 series)
g. more function for $ (at retail prices)
h. closer to standards than Cisco - easier interoperability in multi vendor environment
i. does not have legacy protocols that are not used or so rarely used that they don't matter in the day and age
Purchase and implementation of Cisco maintenance process is MUCH simpler to the end customer
Worked on both brands for a number of years.