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Introduction In this lab we will explore the different options and use cases for establishing an L2 EtherChannel between various switches. The gear available for this lab are the following three switches: Catalyst 2940 Catalyst 3560 Catalyst 2960CX Fi...

The goal is to investigate OSPF and its core features in preparation for the CCNA exam. The topology I used is based on three L3 switches, connected to my home network (192.168.2.0/24) where the MGMT PC is located. The cabling details are as follows: [ ] ...

Via recover-config command Connect a console cable to a workstation Power on the WLC Wait until User: prompt appears Enter recover-config and hit Enter - this will trigger the recovery mechanism which will in effect factory reset the WLC Via Boot Load...

Introduction The Cisco 2500 Series Wireless Controller supports a maximum of 50 lightweight APs in increments of 5 AP licenses with a minimum of a 5 AP license. WLC 2504 ports and LAG A port is a physical entity that is used for connections on the controlle...

Introduction On the previous pages of this chapter, the Cisco UC500 was introduced, factory reset, initialized and connected to Cisco CCA. At this point, the appliance is ready to be configured however we want. For this lab, I have purchased a used Cisco UC5...

Introduction Cisco’s UC500 is a purpose built appliance for SMB (Small and Medium Business) solutions that provides IP PBX, voicemail, switching, VPN, firewall & optional wireless functionality. The IP PBX & voicemail features are based on Cisco Unified Comm...

The Cisco UC500 appliance was introduced on the previous page Introduction to the Cisco UC500. In this page I will explain how to factory reset the appliance, how to apply an initial configuration, and how to connect it to Cisco Configuration Assistant. For ...

Cisco Configuration Assistant (CCA), part of the Cisco Smart Business Communications System (SBCS) portfolio of products, simplifies the tasks of configuring, deploying, and administering Cisco network solutions, improves the security and performance of your n...

First thing, we want to remember that the UC500 appliances do not have a dedicated onboard, non-removable flash. The persistent storage resides on one removable CompactFlash (CF) card (two, in the case of the UC560) in front-panel slots (see Introduction to th...

Introduction On previous chapters we initialized the UC500 using the Telephony Setup Wizard on the Cisco CCA. We also configured some basic system settings. Next step will be configuring a SIP trunk from Flash Telecom (a provider I used on previous labs). SI...

Introduction Below is a concise checklist of the basic system‐level settings we should configure on Cisco Unified CME (and on any Cisco IOS router hosting CME) to align with Cisco best practices. These recommendations cover time sync, name services, localizat...

Getting Started Guide - Cisco Unified Communications 500 Serieshttps://community.cisco.com/legacyfs/online/legacy/4/9/2/20294-u500gsg2.pdf Cisco Communication Manager Express, UC520, SMB VOIP reference and communityhttps://web.archive.org/web/20100103214758/h...

Cisco ASA 5500-X Series Firewallshttps://www.cisco.com/c/en/us/support/security/asa-5500-series-next-generation-firewalls/series.html ASA password recoveryhttps://community.cisco.com/t5/security-knowledge-base/asa-password-recovery/ta-p/3126046 ASA-5505 Soft...

I am a Network Engineer with +5 years of experience. The goal of this wiki is to document things I do on my career from theory studying to labbing and also some off-topics. This wiki also serves as my personal knowledge base which can be accessed here. Phys...

The very first step to following the CCNA Voice Lab Manual is to have the main router with the correct IOS ready. This router should also have the proper CUCME support files. This lab walks through the configuration of the router with a certain IOS image and t...

TDM (Time-division Multiplexing): Method to create multiple digital channels by assigning time slots on the medium. Local loop: Connection to the subscriber from the central office (CO) switch. Key system: Small-scale telecommunications equipment, commonly...

Q&A 1. The audio streams between two IP Phones must go through the Call Agent (CUCME or CUCM Cluster) False. In a typical Cisco IP telephony deployment, the Call Agent (CUCME or CUCM) handles call signaling (setup, teardown, features, etc.), but once t...

In both CUCME and CUCM environments, phones need to connect to the network to receive services such as IP addresses from DHCP, VLAN assignments for voice traffic, IP information on where to register, and NTP packets. This lab focuses on establishing those serv...