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Cisco ISE Hardware Appliance : Cisco SNS-3515 and Cisco SNS-3595

As we earlier discussed on Cisco ISECisco ISE licensing models and comparing to other vendor NAC solutions. Even we talked about the migration from the old AAA Cisco ACS to Cisco ISE  Now in this article we are going to talk about the Cisco ISE appliances and the models used.

Before we will jump to Cisco ISE hardware appliances, just have a look below links for various Cisco ISE articles which we were wrote earlier

Cisco Identity Services Engine (ISE)- User Authentication in Network
Migration from Cisco ACS to Cisco ISE
Network Access Control- NAC (Aruba Vs Cisco)
Comparing Cisco ISE Vs ForeScout Counter ACT
Cisco ISE : Base, Plus and Apex Licenses
Comparing Network Access Control ( NAC Solution ) - Aruba ClearPass Vs ForeScout CounterACT

So for Cisco ISE appliances, we have now two different models and these are Cisco SNS-3515 and Cisco SNS-3595 server. Cisco SNS-3515 or 3595 server further extends the capabilities of the Cisco Unified Computing System portfolio in a 1U form factor.

In addition, the Cisco SNS-3515/3595 server offers up to 256 GB of RAM, 8 drives, and 2 x 1 GbE lights-out management (LOM) ports that deliver outstanding levels of density and performance in a compact package.


Fig 1.1- Cisco ISE in the Network
I will not talked about the previous models of Cisco ISE hardware models which are Cisco SNS-3315, Cisco SNS-3355, Cisco SNS-3395, Cisco SNS-3415 and Cisco SNS-3495

Hardware Specifications of Cisco ISE SNS-3515
  • Cisco UCS C220 M4
  • Single socket Intel Xeon E5-2620 v3 series CPU @ 2.40GHz, 6 total cores, 6*2 total threads)
  • 16 GB RAM
  • 600 Gbps Disk
  • 6 GbE network Interface

Hardware Specifications of Cisco ISE SNS-3595
  • Cisco UCS C220 M4
  • Single socket Intel Xeon E5-2620 v3 series CPU @ 2.60GHz, 8 total cores, 8*2 total threads)
  • 64 GB RAM
  • 4x 600 Gbps Disk
  • RAID 10
  • 6 GbE network Interface
Maximum number of concurrent sessions in a Hybrid deployment 

  • 7,500 for 3515 as PAN+MnT
  • 20,000 for 3595 as PAN+MnT

Maximum number of concurrent sessions in a Dedicated deployment 

  • 250,000 for 3495 as PAN and 3495 as MnT
  • 500,000 for 3595 as PAN and 3595 as MnT

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