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Network Operating System

  • Automated – Native Scripting; SOAP/XML APIs
  • Standards-based SDN – Support for OpenFlow, OpenStack
  • Resilient – modular architecture, memory protected, self-healing, resilient protocols (EAPS, MLAG, FRR, Graceful Restart, TRILL)

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ExtremeXOS Network Operating System

ExtremeXOS® is designed from the ground up to provide the high performance and capabilities needed for everything from large cloud and data center applications, service providers, to intelligent, converged enterprise edge networks.

Some of the key aspects of ExtremeXOS are resilient architecture and protocols, network virtualization, automation friendly, and standards-based SDN capabilities like OpenFlow and OpenStack Cloud Orchestration. Above all it provides a comprehensive set of security features that protect your applications, traffic, and infrastructure in a proactive manner.

ExtremeXOS Network Development Platform

ExtremeXOS provides interfaces and tools to support the need for network to be programmable development platform. This allows our customers to maximize network utilization, get critical insights into the network, and innovate rapidly by being able to integrate the network in unique ways.


ExtremeXOS software development kit (SDK) extends the capabilities of ExtremeXOS through a set of comprehensive application programming interfaces (APIs). These interfaces augment the networking power of ExtremeXOS by allowing applications the ability to interface directly with Extreme Networks switches. Separate SDKs available for SOAP/XML-based, and switch-native applications.


Virtualized version of ExtremeXOS that can be used to build a virtual lab and familiarize oneself with ExtremeXOS.

EXOS App Store (xKIT)

xKIT is the name of EXOS App Store that provides a set of downloadable applications and XOS-based tools that help automate network management. xKit includes support for network monitoring, troubleshooting, and management of both wireless and wired networks.

EXOS Plugins

Avail of EXOS Plugins to better manage your network using orchestration techniques and tools already used by you. Plugins are available today for OpenStack and Splunk, with more on their way.

ExtremeXOS is engineered to support the increasing demands placed on converged networking, cloud, and enterprise data centers while providing a single OS from core to edge.

Resilient – modular architecture, memory protected, self-healing, resilient protocols (EAPS, ERPS, MLAG, FRR, Graceful Restart, TRILL)

Virtualized – Virtualized Applications support  with XNV™ VM lifecycle management at the network level, identity-aware VDI provisioning; Layer 2 Virtualization with 802.1ad Q-in-Q; Layer 2 VPN support with VPLS; Layer 3 Virtualization with Virtual Routers

Automated – Network as a development platform: Native Python and TCL scripting capabilities; User, Device, Network event, and time-based triggers; auto-provisioning capabilities; SOAP/XML and Native Application SDK

Standards-based SDN – Support for OpenFlow, OpenStack Cloud Orchestration, Open APIs

Versatile – Support for IPv6, MPLS, VRRP, BFD, QoS, TRILL, MLAG, DCB, Policy, CFM, Y.1731, IPFIX, Sflow, AVB. Refer to Datasheet for a complete list.

Proven – 10+ years in the field, 10+ years in development, millions of ports shipped; IPv6 Ready, EANTC Tested, AVNU Certified

Secure – Common Criteria EAL3+ Certified; Comprehensive toolkit to protect applications, traffic, and infrastructure


Carrier-Class Availability – features such as EAPS (Ethernet Automatic Protection Switching), hitless failover, and self-healing automatic process restart help deliver voice-grade resiliency.

Virtualization – XNV™ (ExtremeXOS Network Virtualization), helps provide VM awareness, control, and automation for cloud and other virtualized data centers. Identity Manager helps provision and manage VDI, aiding desktop virtualization efforts.

Automation – ExtremeXOS Universal Port helps support VoIP deployment and configuration with a powerful event-driven framework. XOS includes a powerful scripting environment, further aiding automation. Flexible APIs and an expandable architecture help enable integration with management and billing systems as well as devices such as dedicated security appliances.

Security – ExtremeXOS is identity-aware, allowing identity-based access control and policy, enhancing security and facilitating regulatory compliance.

ExtremeXOS high-availability modular architecture provides process monitoring and restart, memory protection, hitless failover on dual-management module systems, and module-level software upgrade on all ExtremeXOS-enabled switches. The SummitStack™ feature in ExtremeXOS provides hitless failover in ExtremeXOS-enabled stackable switches. The modular and memory-protected design prevents system corruption and avoids system reboots using self-healing process recovery. It also adds extensibility for VoIP and Security application integration dynamic application loading and scripting. ExtremeXOS embraces a Hardware Abstraction Layer model, providing a consistent and feature-rich interface to platform-specific capabilities such as ACLs, QoS, counters, and diagnostics.

Management is secured through SNMPv3, SSL, SCP-2, SSH-2, RADIUS per command authentication, and TACACS+. Access to your network is controlled with Network Login’s 802.1x/MAC/Web-based methods, allowing you to turn on network access authentication on every port, integrated with host integrity checking. The ExtremeXOS network operating system provides enterprise and metro Layer 2 and IPv4/IPv6 Layer 3 resiliency and control protocols including OSPF, ISIS, PIM, BGP, STP, VRRP, EAPS, ESRP, and ELSM unidirectional link detection. Traffic-scaling capabilities include IGMP/MLD Snooping and Multicast VLAN Registration (MVR). Network monitoring capabilities include LLDP, LLDP-MED, RMON, SMON, sFlow, and IPFIX.

  • Memory protection, process monitoring and restart, loadable modules, hitless failover, DoS Protection
  • Network Login with 802.1x, Web- and MAC-based, integrated with host integrity solutions
  • Identity Manager for secure access, device, location, and presence awareness
  • XNV™ for insight, control and automation in highly virtualized data centers
  • IP Security to protect DHCP and ARP abuse
  • EAPS, STP 802.1D/w/s/PVST+, VRRP, ESRP, LACP, M-LAG, ELSM Layer 2+ resiliency protocols
  • OSPFv2/v3, RIPv1/v2/ng, BGP4, MBGP, PIM-DM/SM/SSM, IGMPv1/v2/v3, MLDv1/v2