Latest posts
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XML vs JSON
🔄 XML vs JSON Feature XML (eXtensible Markup Language) JSON (JavaScript Object Notation) Syntax Style Tag-based (like HTML) Key-value pairs (JavaScript-like) Readability More verbose, harder to read Lightweight and human-readable Data Structure Supports complex structures (attributes, nesting) Simpler, supports arrays and objects Use in APIs Common in legacy systems and enterprise APIs Preferred in modern…
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Ansible vs Terraform
🔧 Ansible vs Terraform Feature Ansible Terraform Primary Purpose Configuration management & automation Infrastructure provisioning (IaC) Language Used YAML (Playbooks) HCL (HashiCorp Configuration Language) Execution Model Agentless (uses SSH) Declarative, state-based State Management No persistent state Maintains state files to track infrastructure Use Case Installing software, configuring systems Creating cloud resources (VMs, networks, etc.) Cloud…
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Tool Comparison for Development Collaboration, Trello Vs Jira Vs Slack, Cisco Webex, Hipchat
Tool Comparison for Development Collaboration Tool Type Key Features Best For Trello Project Management Kanban boards, task tracking, checklists, automation Visual task organization Slack Communication Real-time messaging, channels, integrations with dev tools Team communication & alerts Cisco Webex Communication & Meetings Video conferencing, screen sharing, team messaging Remote meetings & collaboration Jira Issue &…
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Important Questions – Network Automation
Which enterprise platform type can be used to receive real-time notifications from automation tools to alert a given individual or team? Top of Form dashboards orchestration ITSM chat Bottom of Form Ans – Chat What does CALMS stand for? · coding, automation, lean, measurement, sharing · culture, automation, logging, measurement, sharing · culture, automation,…
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Comparison Between CDP and LLDP in Cisco ACI
Comparison Between CDP and LLDP in Cisco ACI Note :- Both CDP and LLDP can be enabled at the same time. Feature CDP (Cisco Discovery Protocol) LLDP (Link Layer Discovery Protocol) Vendor Support Cisco proprietary Vendor-neutral (IEEE 802.1ab standard) Protocol Layer Data Link Layer Data Link Layer Device Discovery Scope Cisco devices only Cisco and…
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ACI Important Questions
An engineer is creating a configuration import policy that must terminate if the imported configuration is incompatible with the existing system. Which import mode achieves this result? A. merge B. atomic C. best effort D. replace Answer B A situation causes a fault to be raised on the APIC. The ACI administrator does not want that fault to be…
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ACI BFD Support Overview
ACI BFD Support Overview Supported Protocols: BFD is supported for BGP external routed networks. Purpose: BFD provides sub-second failure detection between ACI leaf switches and external routers, improving convergence and reliability. Multihop BFD: Supported from APIC Release 5.0(1) onward. C-bit-aware BFD: ACI supports control-plane-aware BFD, allowing you to configure whether BFD sessions are dependent or independent of the control plane 🔧 Configuration Guidelines…
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ACI Leaf as Ethernet Hub – Spanning tree handing in ACI
🔁 ACI Leaf as Ethernet Hub (Behavioral Analogy) ACI leaf switches forward BPDUs transparently between connected devices. This behavior mimics a hub, where multiple devices share the same broadcast domain. Therefore, STP decisions and transitions are influenced by how the connected switch interprets the topology. ⚡ P2P Mode (Rapid Convergence) When a switch receives a Proposal BPDU on a P2P link: It can immediately…
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COOP: Council of Oracle Protocol – Cisco ACI
COOP: Council of Oracle Protocol – A Modern Overview The Council of Oracle Protocol (COOP) serves as a critical mechanism for transmitting endpoint mapping data—such as identity and location—from leaf switches to spine proxies within a network. This communication is facilitated using Zero Message Queue (ZMQ), enabling leaf switches to relay endpoint details to a designated spine switch…
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COOP (Council of Oracle Protocol) and ZMQ (Zero Message Queue)
In Cisco ACI (Application Centric Infrastructure), both COOP (Council of Oracle Protocol) and ZMQ (ZeroMQ) play critical roles in the control-plane communication between switches (leaves and spines), but they serve different purposes and operate at different levels. Let’s break down the difference and their relationship: 🔹 What is COOP in Cisco ACI? 📌 Purpose: COOP is the control-plane protocol used by leaf switches to register endpoint information with spine…