{"id":5461,"date":"2015-05-16T06:51:50","date_gmt":"2015-05-16T06:51:50","guid":{"rendered":"http:\/\/www.davidpapkin.net\/?page_id=360"},"modified":"2015-05-16T06:51:50","modified_gmt":"2015-05-16T06:51:50","slug":"networking-davidpapkin-2","status":"publish","type":"page","link":"https:\/\/davidpapkin.com\/?page_id=5461","title":{"rendered":"Networking links by David Papkin"},"content":{"rendered":"
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This page by David Papkin shows useful network links<\/p>\n<\/blockquote>\n

Enroll in Cisco Networking Academy<\/a><\/p>\n

Cisco Networking Academy Resource Hub<\/a><\/p>\n

CCNAX 200-301 exam<\/a><\/p>\n

200-301 CCNA Exam Topics Study Tool<\/a><\/p>\n

Heard This About Cisco Exams? Let\u2019s Set the Record Straight<\/a><\/p>\n

Cisco Certifications: Don’t test until you know the truth (Part 1)<\/a><\/p>\n

Cisco Certifications: Don\u2019t test until you know the truth (Part 2)<\/a><\/p>\n

CCNA Prep: Your ultimate self-study resource<\/a><\/p>\n

CCNA-live-stream<\/a><\/p>\n

CCNA Exam Safeguard<\/a><\/p>\n

Steps to the Future: The Modern CCNA<\/a><\/p>\n

CCNA Podcast: https:\/\/lnkd.in\/edNabxxr<\/strong><\/span><\/a>

CCNA discussion thread: https:\/\/lnkd.in\/emqS3J7W<\/strong><\/span><\/a>

What’s Different\u00a0?
Troubleshooting & Problem Solving are the core skills, not add-ons
Security is woven throughout.
AI is in the exam
Practical assessments replace pure memorization
CCNA 2.0 Blueprint EXPLAINED: What’s New, What’s Gone & How to Prepare
Wendell Odom explained it below :
https:\/\/lnkd.in\/eVrWRk8m<\/strong><\/span><\/a>

Wendell Odom’s Videos about it :
https:\/\/lnkd.in\/e-vquJn7<\/strong><\/span><\/a>
https:\/\/lnkd.in\/eM8aNn9V<\/strong><\/span><\/a><\/p>\n


Learn with Cisco<\/strong><\/span><\/a><\/p>\n

Cisco Community<\/strong><\/span><\/a><\/p>\n

Cisco Certifications<\/a><\/p>\n

Cisco Labs options<\/a><\/strong><\/p>\n

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Packet Tracer<\/p>\n<\/div>\n

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Packet Tracer<\/b>\u00a0is a free network simulator tool for certification exam preparation, particularly for CCNA students. It\u2019s available directly through the Cisco Networking Academy. Download and install the Packet Tracer software by signing up for the Introduction to Packet Tracer course, which teaches you the basics of using the tool.<\/p>\n

Download Packet Tracer here<\/a><\/p>\n

Cisco Learning Labs<\/b>\u00a0offer you a chance to practice lab exercises on a virtual lab topology hosted by Cisco and grouped according to the certification exam for which you\u2019re studying. When you choose an exam, you can purchase the rights to practice lab exercises for topics on that exam. During a three-month access, you can use a virtual lab pod to run real IOS (routers and switches).<\/p>\n

Purchase Cisco Learning Labs here<\/a><\/p>\n

Cisco Modeling Labs<\/b>\u00a0is an on-premise network simulation tool that runs on workstations and servers and lets you easily simulate Cisco and non-Cisco networks using real Cisco images. This gives you highly reliable models for designing, testing, and troubleshooting. Compared to building out real-world labs, Cisco Modeling Labs returns results faster, more easily, and for a fraction of the cost.<\/p>\n

Purchase Cisco Modeling Labs – Personal here<\/a><\/p>\n<\/div>\n<\/div>\n

Collaboration Certifications Roadmap Webinar<\/p>\n

https:\/\/www.cisco.com\/c\/en\/us\/training-events\/training-certifications\/certifications\/professional\/ccnp-collaboration-v2.html<\/a><\/p>\n

 <\/p>\n

Shows config and lists different syslog levels<\/h5>\n

Configuring System Message Logging (Cisco)<\/a><\/p>\n

Configure System Logging (Cisco link)<\/a><\/p>\n

Configuring Cisco IOS to automatically save the running configuration to a tftp server on save<\/a><\/p>\n

Booting Cisco Router from a TFTP server<\/a><\/p>\n

Use of the Configuration Register on All Cisco Routers<\/a><\/p>\n

Understanding Cisco Auto Archive Feature to Backup Configuration File<\/a><\/p>\n

Adjust Administrative Distance for Route Selection in Cisco IOS Routers<\/a><\/p>\n

Interface and Line Numbers in Cisco Routers<\/a><\/p>\n

Errdisable Port State Recovery on the Cisco IOS Platforms<\/a><\/p>\n

Maximum Number of Interfaces and Subinterfaces for Cisco IOS Routers: IDB Limits<\/a><\/p>\n

Overview of Dial Interfaces, Controllers, and Lines<\/a><\/p>\n

Access Lists<\/strong><\/p>\n

Standard Access Lists – Filters bases on Source Address and Wildcard mask<\/p>\n

Extended Access Lists – Filters based Source Address, Destination Address, Wildcard mask, Protocol and Port.<\/p>\n

Ansible<\/strong><\/p>\n

https:\/\/developer.cisco.com\/learning\/labs\/ansible-03_ansible-hands-on\/ansible-hands-on\/<\/a><\/p>\n

https:\/\/www.youtube.com\/watch?v=dfRzfkbmx-A<\/a><\/p>\n

APIPA\u00a0<\/strong>\u00a0– <\/strong>Automatic Private IP Addressing (APIPA) <\/span>was developed by Microsoft as a
means for clients that could not contact a DHCP server to communicate on the
local network anyway. If a Windows host does not receive a response from a DHCP
server within a given time frame, it selects an address at random from the range
169.254.1.1 to 169.254.254.254.
<\/span>These addresses are from one of the address ranges reserved for private addressing
(169.254.0.0\/16). The first and last subnets are supposed to be unused.
<\/span>This type of addressing is referred to as link local in standards documentation
(RFC 3927).
APIPA has no mechanism for assigning default gateway or DNS server addresses.
Hosts using APIPA are restricted to communicating on the local network<\/span>\u00a0<\/p>\n

ARP<\/strong><\/p>\n

IP Addressing: ARP Configuration Guide<\/a><\/p>\n

Cabling<\/strong><\/p>\n

WHAT DOES UTP, S\/UTP, FTP, STP AND SFTP MEAN?<\/a><\/p>\n

What is the difference between shielded and unshielded network cables<\/a><\/p>\n

Cisco Cable Pinouts ( rollover , aux , Ethernet )<\/a><\/p>\n

ISO\/IEC_11801 wiring standards<\/a><\/pre>\n
https:\/\/tripplite.eaton.com\/products\/ethernet-cable-types<\/a><\/p>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Category<\/th>\nMax. Data Rate<\/th>\nBandwidth<\/th>\nMax. Distance<\/th>\nUsage<\/th>\n<\/tr>\n<\/thead>\n
Category 1<\/td>\n1 Mbps<\/td>\n0.4 MHz<\/td>\n\u00a0<\/td>\nTelephone and modem lines<\/td>\n<\/tr>\n
Category 2<\/td>\n4 Mbps<\/td>\n4 MHz<\/td>\n\u00a0<\/td>\nLocalTalk & Telephone<\/td>\n<\/tr>\n
Category 3<\/td>\n10 Mbps<\/td>\n16 MHz<\/td>\n100 m (328 ft.)<\/td>\n10BaseT Ethernet<\/td>\n<\/tr>\n
Category 4<\/td>\n16 Mbps<\/td>\n20 MHz<\/td>\n100 m (328 ft.)<\/td>\nToken Ring<\/td>\n<\/tr>\n
Category 5<\/td>\n100 Mbps<\/td>\n100 MHz<\/td>\n100 m (328 ft.)<\/td>\n100BaseT Ethernet<\/td>\n<\/tr>\n
Category 5e<\/td>\n1 Gbps<\/td>\n100 MHz<\/td>\n100 m (328 ft.)<\/td>\n100BaseT Ethernet, residential homes<\/td>\n<\/tr>\n
Category 6<\/td>\n1 Gbps<\/td>\n250 MHz<\/td>\n100 m (328 ft.)
10Gb at 37 m (121 ft.)<\/td>\n		Gigabit Ethernet, commercial buildings<\/td>\n<\/tr>\n
Category 6a<\/td>\n10 Gbps<\/td>\n500 MHz<\/td>\n100 m (328 ft.)<\/td>\nGigabit Ethernet in data centers and commercial buildings<\/td>\n<\/tr>\n
Category 7<\/td>\n10 Gbps<\/td>\n600 MHz<\/td>\n100 m (328 ft.)<\/td>\n10 Gbps Core Infrastructure<\/td>\n<\/tr>\n
Category 7a<\/td>\n10 Gbps<\/td>\n1000 MHz<\/td>\n100 m (328 ft.)
40Gb at 50 m (164 ft.)<\/td>\n		10 Gbps Core Infrastructure<\/td>\n<\/tr>\n
Category 8<\/td>\n25 Gbps (Cat8.1)
40 Gbps (Cat8.2)<\/td>\n		2000 MHz<\/td>\n30 m (98 ft.)<\/td>\n25 Gbps\/40 Gbps Core Infrastructurezxccc\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
Fiber Optics Part 2: Single-Mode Fiber vs. Multi-Mode-Fiber<\/a><\/p>\n
Differences between T568A and T568B explained<\/a><\/p>\n
Power over Ethernet (POE) pinout<\/a><\/p>\n
https:\/\/www.ppc-online.com\/blog\/fiber-connectors-whats-the-difference<\/a><\/p>\n
https:\/\/www.cablematters.com\/Blog\/Networking\/fiber-optic-connector-types<\/a><\/p>\n
Cisco Optics-to-Device Compatibility Matrix<\/a><\/p>\n
How to use a punchdown tool video (very good!!!)<\/a><\/p>\n
Configuration Monitoring<\/b><\/p>\n
Configuration management tools can monitor device configurations to discover when the
device configuration differs from the intended ideal configuration, and then either reconfigure the device or notify the network engineering staff to make the change<\/span><\/p>\n
CRUD and HTTP Verbs<\/b><\/p>\n
The software industry uses a memorable acronym\u2014CRUD<\/i><\/b>\u2014for the four primary actions performed by an application.<\/p>\n
Create: <\/b>Allows the client to create some new instances of variables and data structures at the server and initialize their values as kept at the server
Read: <\/b>Allows the client to retrieve (read) the current value of variables that exist at the server, storing a copy of the variables, structures, and values at the client
Update: <\/b>Allows the client to change (update) the value of variables that exist at the server
Delete: <\/b>Allows the client to delete from the server different instances of data variables<\/p>\n
For example, using the northbound REST API of a DNA controller (See Cisco Software-Defined Access (SDA),\u201d for info)\u00a0 you might want to create something, like a new security policy. From a programming perspective, the security policy exists as a related set of configuration settings on the DNA controller, internally represented by variables. To do that, a REST client application would use a C<\/b>reate<\/b> action, using the DNA Center RESTful API, that created variables on the DNA Controller via the DNA Center REST API.<\/p>\n
HTTP uses verbs that mirror CRUD actions. HTTP defines the concept of an HTTP request and reply, with the client sending a request and with the server answering back with a reply.<\/p>\n
\"\"<\/a><\/p>\n
Each request\/reply lists an action verb in the HTTP request header, which defines the HTTP action. The HTTP messages also include a URI, which identifies the resource being manipulated for this request. As always, the HTTP message is carried in IP and TCP, with headers and data, as seen below.<\/p>\n
\"\"<\/a><\/p>\n
DHCP<\/strong><\/p>\n
Cisco IP Addressing: DHCP Configuration Guide<\/a><\/p>\n
DHCP Static Binding on Cisco IOS<\/a><\/p>\n
CSMA\/CD<\/strong> –\u00a0Carrier Sense Multiple Access with Collision Detection<\/strong>. It is a network protocol used primarily in early Ethernet networks<\/strong> (especially 10Base-T<\/strong> and 10Base2<\/strong> Ethernet) to control access to a shared transmission medium (e.g., a coaxial cable or hub-based Ethernet).<\/p>\n
Breakdown of CSMA\/CD:<\/span>

1. CS \u2013 Carrier Sense<\/strong><\/p>\n