Articles by tag "Cisco IOS XE"

1. Catalyst 9500 Series Switches Install and Upgrade Guides
   leo peng

   87
   Cisco Catalyst 9500 Series: Up to 6.4 Tbps/stack. Cisco Catalyst 9500 Switches upgrade from: Cisco Catalyst 6880-X, 6840-X, 4500-X Series: 800 Gbps/stack; Catalyst 3850 Series fiber: 480 Gbps/stack; Designed for security, the Internet of Things (IoT), and the cloud, Catalyst 9500 fixed-core ...
2. How to Use the install commit Command in Cisco IOS XE Upgrades
   Selene Gong

   53
   When upgrading Cisco IOS XE-based devices using install mode, the install commit command is a critical step that ensures changes are saved and retained across reloads. If you're working with Catalyst 9000, ASR, or ISR platforms, understanding how and when to use this command can make or break ...
3. How Many VLANs Are Supported on Cisco Catalyst 9300?
   Selene Gong

   46
   VLANs (Virtual Local Area Networks) are essential for logically segmenting Layer 2 networks in enterprise environments. With Cisco’s Catalyst 9300 series, a widely used access layer switch, it's important to understand how many VLANs it supports — both in theory and in practice. This guide ...
4. Cisco Catalyst 9300 Stops Looking for Stack Switch — Troubleshooting and Solutions
   Selene Gong

   50
   Cisco Catalyst 9300 switches are widely used in enterprise networks for their high performance and stacking capabilities. However, network engineers sometimes face a critical issue where a Cisco Catalyst 9300 stops looking for a stack switch, meaning a stack member is no longer detected. This ...
5. Cisco IOS XE vs IOS XR: Key Differences, Architecture, and Use Cases
   Selene Gong

   37
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6. How to Migrate from Cisco 2960X to 9200L Switches
   Selene Gong

   41
   The Cisco Catalyst 2960X series has long been a reliable workhorse for enterprise access layers. However, with the platform reaching its End-of-Life (EOL) milestones, IT teams face pressure to migrate to modern, supported solutions. The recommended migration path leads to Cisco Catalyst 9200 ...
7. DMVPN Phase 3 Configuration Guide: Architecture, Migration Steps, and Best Practices
   Selene Gong

   41
   Dynamic Multipoint VPN (DMVPN) remains one of the most widely deployed WAN technologies for large, distributed networks that rely on Cisco routers. DMVPN Phase 3 introduced several enhancements—particularly around spoke-to-spoke forwarding—that improve scalability, efficiency, and latency ...
8. The Ultimate Cisco Catalyst 9300 FAQ Guide: Specs, Comparisons & Configuration
   Selene Gong

   39
   The Cisco Catalyst 9300 Series is Cisco’s leading stackable enterprise access switch platform. Designed for high-performance campus networks, hybrid workplaces, and cloud-ready environments, it supports advanced security, IoT, and mobility. Users often have questions regarding capabilities, ...
9. Cisco Catalyst 9500 End-of-Life Guide: Planning Core Network Migration and Risk Mitigation
   Selene Gong

   37
   The Cisco Catalyst 9500 Series Switches (C9500), released in June 2017, serve as Cisco’s foundational fixed core and aggregation enterprise switching platforms. While the series is still listed as "Available," IT administrators, network engineers, and procurement managers must actively manage ...
10. What Breaks When Cisco IOS XE Is No Longer Updated
    Selene Gong

    32
    For network engineers and IT administrators, the stability of Cisco IOS XE is the bedrock of production environments. However, when an IOS XE release reaches its End of Software Maintenance or Last Date of Support (LDOS), it stops being a reliable asset and begins to pose significant risks to ...