Network Configuration: VLANs, Port Channels, and Spanning Tree

Posted by admin on Oct 17, 2024 in Computers | 0 comments

VLAN 10 – PATATA1

Port Configuration

Access Ports

• Interface Range: F0/1-7
  Switchport Mode: Access
  VLAN: 10
• Interface Range: F0/8-16
  Switchport Mode: Access
  VLAN: 20
• Interface Range: F0/17-22
  Switchport Mode: Access
  VLAN: 30
• Interface Range: Gig1/0/5-6
  Switchport Mode: Access
  VLAN: 99

Trunk Ports

• Interface Range: F0/23-24
  Channel Group: 1
  Mode: Active
• Interface Port-Channel 1:
  Switchport Mode: Trunk
  Native VLAN: 99
  Allowed VLANs: All
• Interface Range: G0/1-2
  Channel Group: 2
  Mode: Active
• Interface Port-Channel 2:
  Switchport

Read More

C++ Template Functions and Linked Lists

Posted by admin on Oct 17, 2024 in Computers | 0 comments

C++: Template Functions and Linked Lists

Bag Class Implementation

Constructors and Destructor

bag::bag()

Initializes an empty bag.

bag::bag(const bag& source)

Copy constructor for the bag class.

bag::~bag()

Destructor for the bag class. Clears the linked list and sets the node count to 0.

Member Functions

bag::size_type bag::count(const value_type& target) const

Counts the occurrences of a given value in the bag.

bag::size_type bag::erase(const value_type& target)

Removes all occurrences of a given

Read More

Essential Data Structures & Algorithms: A Comprehensive Guide

Posted by admin on Oct 17, 2024 in Computers | 0 comments

Data Structure Fundamentals

Deque vs. Circular Queue

A deque (double-ended queue) offers efficient insertion and deletion from both ends, making it suitable for scenarios like sliding window problems. Circular queues, on the other hand, restrict operations to specific ends (rear for enqueue, front for dequeue).

Big O Notation

Big O notation describes an algorithm’s upper bound running time, classifying algorithms by their worst-case behavior. This allows for time complexity comparisons irrespective

Read More

Quality Assurance and Management: Concepts and Principles

Posted by admin on Oct 17, 2024 in Computers | 0 comments

Quality Assurance and Management

Q. Definition:

1. Comparative Sense (Degree of Excellence): On a relative basis, products can be ranked or referred to by “grade”.
2. Quantitative Sense (Used in Manufacturing/Production Release/Technical Evaluation): Refers to quality level.
3. Fitness for Purpose Sense: Evaluation of a product’s or service’s ability to satisfy a given need.

Gap Between Perception & Expectation

Expected Service = Word of Mouth + Personal Needs + Past Experience (manufacturer -> specification

Read More

Network Fundamentals: Delays, Switching, Protocols, and DNS

Posted by admin on Oct 17, 2024 in Computers | 0 comments

1G = 10⁹, 1M = 10⁶, 1K = 10³, 1B = 1 Byte = 8 bits, 1b = 1 bit. Msec is millisec which is 0.001.

Delays

Types of delays: processing, queue, transmission, propagation.

d_nodal = d_proc + d_queue + d_trans + d_prop

Dial-up networks have high transmission delays, while satellite connections have high propagation delays.

Processing Delay

Time it takes for a device to process a packet header to determine where to forward it (caused by CPU cycles).

Queue Delay

Time a packet waits in a system queue before processing,

Read More

Configure Network Interfaces as a Bridge in Debian

Posted by admin on Oct 16, 2024 in Computers | 0 comments

Debian Linux: Configure Network Interfaces as a Bridge/Network Switch

My server has five Ethernet ports and one ADSL port. How do I set up an IPv4 software bridge using Debian Linux so that the five ports act as a network switch?

You need to use the brctl command to bridge network connections under Debian Linux. This is useful for:

• Sharing your internet connection between multiple devices.
• Increasing your ethernet jacks capacity without purchasing a dedicated network switch.
• Setting up Debian as an access

Read More