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Cisco NX-OS

{{Short description|Network operating system}}

{{Notability|date=June 2024}}

{{Infobox OS

| name = Cisco NX-OS

| developer = Cisco Systems

| source_model = Closed source

| supported_platforms =

| ui =

| family = Unix-like

| working_state = Current

| website = {{URL|cisco.com/c/en/us/products/ios-nx-os-software/nx-os/|Cisco NX-OS}}

| latest_release_version = 10.5(2)F

| latest_release_date = {{Start date and age|2025|1|8}}

}}

NX-OS is a network operating system for the Nexus-series Ethernet switches and MDS-series Fibre Channel storage area network switches made by Cisco Systems. It evolved from the Cisco operating system SAN-OS, originally developed for its MDS switches. Cisco is responsible for its development and maintenance.

The command-line interface of NX-OS is similar to that of Cisco IOS.

Development

Cisco is responsible for development and maintenance of NX-OS.{{Cite web|url=https://www.cisa.gov/news-events/alerts/2024/03/01/cisco-releases-security-advisories-cisco-nx-os-software|title=Cisco Releases Security Advisories for Cisco NX-OS Software|author=Cybersecurity & Infrastructure Security Agency|date=March 1, 2024|work=cisa.gov}}

Core features

  • System Manager (sysmgr)
  • Persistent Storage Service (PSS)
  • Message & Transaction Services (MTS)

Additional features

Switches running NX-OS

  • Nexus B22 (HP, Dell, Fujitsu)
  • Nexus 9000 series{{cite web |title=Introduction to Cisco Nexus Switches – Nexus Product Family. Differences Between Nexus NX-OS & Catalyst IOS. Comparing High-End Nexus & Catalyst Switches |url=https://www.firewall.cx/cisco/cisco-data-center/introduction-nexus-family-nx-os-ios-differences.html#cisco-nexus-product-family |website=Firewall.cx |access-date=18 February 2025}}
  • Nexus 7700 series
  • Nexus 7000 series
  • Nexus 6000 series
  • Nexus 5000 series
  • Nexus 4000 (for IBM BladeCenter)
  • Nexus 2000 series
  • Nexus 3000
  • Nexus 1000V
  • MDS 9700 FC Directors
  • MDS 9500 FC DirectorsCisco Product Brocuhure [http://www.cisco.com/en/US/prod/collateral/ps4159/ps6409/ps5990/ps4359/prod_brochure09186a00801ce93e_ps5991_Products_Brochure.html Cisco MDS 9500 Series of Multilayer Directors], visited 18 May 2012
  • MDS 9250i FC Switch
  • MDS 9222i FC Switch
  • MDS 9100 FC Switches

Differences between IOS and NX-OS

{{Section OR|date=February 2011}}

  • NX-OS does not support the login command to switch users.
  • NX-OS does not distinguish between standard or extended access lists, all lists are named and "extended" in functionality.{{cite web|title=Cisco Nexus 7000 Series NX-OS Security Configuration Guide, Release 4.1|url=http://www.cisco.com/en/US/docs/switches/datacenter/sw/4_1/nx-os/security/configuration/guide/sec_ipacls.html}}
  • NX-OS did not support scp server prior to 5.1(1) release.
  • In NX-OS, there is no "write" command to save the configuration like on IOS (one uses the "copy" command, instead). Instead, command aliases can be created to provide the "write" command.{{Cite web |date=2012-08-01 |title=Write Command On Nexus Switches |url=https://community.cisco.com/t5/switching/write-command-on-nexus-switchs/td-p/1958386 |access-date=2024-10-05 |website=community.cisco.com |language=en}}
  • When accessing NX-OS, users authenticate directly to their assigned privilege level.
  • SSH server is enabled while Telnet server is disabled by default in NX-OS.{{cite web|title=Cisco NX-OS/IOS Configuration Fundamentals Comparison|url=http://docwiki.cisco.com/wiki/Cisco_NX-OS/IOS_Configuration_Fundamentals_Comparison|access-date=June 3, 2017}}

Releases

4.1, 4.2, 5.0, 5.1, 5.2, 6.0, 6.1, 6.2, 7.0, 9.2, 9.3, 10.1

See also

References

External links

  • [https://content.cisco.com/welcome.html Cisco Content Hub]
  • [https://cfnng.cisco.com Cisco Feature Navigator]
  • [http://www.cisco.com/en/US/products/ps9372/index.html intro]
  • [http://www.cisco.com/en/US/prod/collateral/iosswrel/ps9494/ps9372/data_sheet_c78-652063.html data sheet]

Category:Proprietary operating systems

Category:Network operating systems

Category:Cisco software

{{Routing software}}