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Ansible Cisco IOS Config Backup and Drift Check Playbook

Ansible Cisco IOS Config Backup and Drift Check Playbook

Build an Ansible Cisco IOS playbook that backs up running-config per device, then runs a check-mode drift check against a standard port template.

admin admin 2026-10-03
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HPE 3PAR Thin Provisioning: Space Commands That Matter

HPE 3PAR Thin Provisioning: Space Commands That Matter

HPE 3PAR thin provisioning space reporting: showvv -s for reserved versus used, showcpg -sdg for CPG layout, showvv -perc and when to compact.

admin admin 2026-10-03
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Junos rollback and Configuration Revision Identifiers

Junos rollback and Configuration Revision Identifiers

Use Junos rollback with 50 stored commits plus Configuration Revision Identifiers: rollback 0-49, rescue config, compare and verification commands.

admin admin 2026-10-03
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Nokia SR Linux CLI Basics: Modes, Commit and Verification

Nokia SR Linux CLI Basics: Modes, Commit and Verification

Get started with the Nokia SR Linux CLI: candidate configuration, commit, info and show commands, output formatting and how it differs from vendor CLI

admin admin 2026-10-03
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SONiC config_db.json: Edit and Apply Configuration Safely

SONiC config_db.json: Edit and Apply Configuration Safely

How SONiC stores configuration in config_db.json: CLI versus JSON edits, config save and reload, Redis CONFIG_DB and a safe change workflow.

admin admin 2026-10-03
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Netmiko Python Script: Configure Cisco IOS Devices

Netmiko Python Script: Configure Cisco IOS Devices

Write a Netmiko Python script for Cisco IOS: ConnectHandler setup, send_command, send_config_set, commit versus save_config, and session logging.

admin admin 2026-10-03
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Linux VLAN-Aware Bridge: Enforce 802.1Q with iproute2

Linux VLAN-Aware Bridge: Enforce 802.1Q with iproute2

Build a VLAN-aware Linux bridge with iproute2: vlan_filtering, tagged trunk ports, untagged access ports with pvid, and bridge vlan show verification.

admin admin 2026-10-03
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H3C vs Huawei CLI: VLAN, Link Aggregation and Save Commands

H3C vs Huawei CLI: VLAN, Link Aggregation and Save Commands

Side-by-side H3C Comware and Huawei VRP command map for VLANs, trunk ports, link aggregation groups and saving configuration files safely.

admin admin 2026-10-03
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Arista EOS SVI Down: Inter-VLAN Routing Troubleshooting

Arista EOS SVI Down: Inter-VLAN Routing Troubleshooting

Why an Arista EOS SVI stays down/down: no forwarding member port, VLAN missing, ip routing disabled, plus the show commands that prove each cause.

admin admin 2026-10-03
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Troubleshoot a Flapping IPsec VPN Tunnel on Juniper SRX

Troubleshoot a Flapping IPsec VPN Tunnel on Juniper SRX

Diagnose a Juniper SRX IPsec tunnel that flaps up and down: syslog checks, IKE SA state, VPN monitor settings, interface errors and MTU problems.

admin admin 2026-10-03
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