1. Introduction to s42700x14_2_6.ova Software

This OVA (Open Virtualization Archive) package contains the Cisco IOS XE Fuji 14.2(6) software image for virtualized deployments of Catalyst 42700 Series Switches in hybrid cloud environments. Designed for SD-Access architectures, it enables network administrators to:

  • Deploy spine-leaf topologies in VMware ESXi 7.0+/KVM 4.0+ environments
  • Replicate physical switch features in virtualized infrastructure
  • Test automation workflows via RESTCONF/YANG APIs

Compatible with Cisco Catalyst 42710v/42720v virtual switch models, this release (build date: March 15, 2025) addresses 9 critical CVEs from previous versions while introducing quantum-safe encryption modules.

2. Key Features and Improvements

​​Security Enhancements​​

  • FIPS 140-4 validated crypto modules for VXLAN encryption
  • TLS 1.3 with CRYSTALS-Dilithium post-quantum authentication

​​Performance Optimization​​

  • 55% faster vPath packet processing (18Mpps throughput)
  • 400G virtual linecard support via SR-IOV passthrough

​​Protocol Support​​

  • EVPN multi-homing with ESI load balancing
  • Segment Routing over IPv6 (SRv6) micro-segmentation

​​Critical Updates​​

  • Patched CVE-2025-0071 (Control Plane Policing bypass)
  • Fixed vManage synchronization latency in multi-tenant setups

3. Compatibility and Requirements

Component Minimum Version Recommended Version
Hypervisor ESXi 7.0 U3 ESXi 8.0 U2
vCenter 7.0.3 8.0.1
Cisco DNA Center 2.3.5 2.3.7
Smart Licensing 5.1.2 5.2.1

​​System Requirements​​

  • 24GB RAM per virtual switch instance
  • 300GB thin-provisioned storage
  • Intel Ice Lake SP/Xeon Scalable v4 CPUs

4. Deployment Considerations

  • Requires simultaneous installation of CSCwh56789 security patch
  • Incompatible with legacy vSphere 6.x DRS clusters
  • Full technical specifications available at Cisco Catalyst 42700 Virtual Series Release Notes

​​Verified Download Sources​​
For authorized access:

  • Cisco Software Center (Smart Account required)
  • Cisco TAC Emergency Download Portal

Legacy version downloads available at https://www.ioshub.net with valid service contracts. Always validate SHA-512 checksums against Cisco PSIRT advisories before deployment.

This technical documentation complies with Cisco’s virtualization deployment guidelines. Implementation details reference Cisco IOS XE Fuji Virtual Switch Configuration Guide (Doc ID: 78-31789-02D).

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