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TRex Traffic Generator: Stateless and Stateful Testing

TRex Traffic Generator: Stateless and Stateful Testing

Use the Cisco TRex traffic generator for L2-L7 load testing: stateless vs ASTF modes, DPDK setup, profile examples and result validation.

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Distributed Anycast Gateway and ARP Suppression in VXLAN

Distributed Anycast Gateway and ARP Suppression in VXLAN

Design a distributed anycast gateway with ARP suppression in VXLAN EVPN, with configuration examples, verification commands and caveats.

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step-ca Tutorial: An Internal ACME CA for Network Devices

step-ca Tutorial: An Internal ACME CA for Network Devices

Run an internal ACME CA with step-ca: two-tier PKI, automatic renewal for network devices and firewalls, and short-lived certificates.

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FD.io VPP Tutorial: A High-Speed Data Plane on Linux

FD.io VPP Tutorial: A High-Speed Data Plane on Linux

Hands-on FD.io VPP tutorial: install it, bind a NIC to DPDK, build a bridge domain, trace packets and run NAT44 on a Linux host.

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Wi-Fi Site Survey Guide: Passive vs Active vs Predictive

Wi-Fi Site Survey Guide: Passive vs Active vs Predictive

Compare passive, active and predictive Wi-Fi site surveys, the measurements that matter, and how to validate a design before users find the gaps.

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Energy-Efficient Ethernet (802.3az): Benefits and Gotchas

Energy-Efficient Ethernet (802.3az): Benefits and Gotchas

How 802.3az Energy-Efficient Ethernet low power idle works, where the savings are real, and when it causes latency or interop problems.

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gNOI and gRIBi: Network Operations and Routing APIs

gNOI and gRIBi: Network Operations and Routing APIs

Understand gNOI operational RPCs and gRIBi FIB programming, how they differ from gNMI and NETCONF, and how to enable and use them.

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802.1X Supplicant Troubleshooting: EAPOL Debug Step by Step

802.1X Supplicant Troubleshooting: EAPOL Debug Step by Step

Debug 802.1X supplicant failures with EAPOL packet captures, switch-side dot1x debugs and certificate checks that find the real cause fast.

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Network Anomaly Detection with Telemetry and Online ML

Network Anomaly Detection with Telemetry and Online ML

Build network anomaly detection on NetFlow and gNMI telemetry using unsupervised online learning, with practical false-alarm control.

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Captive Portal Deployment Guide: DHCP, RA and CAPPORT

Captive Portal Deployment Guide: DHCP, RA and CAPPORT

Deploy a standards-based captive portal using DHCP option 114, DHCPv6 option 103 and the RFC 8908 API instead of fragile TLS hijacking.

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