Network Configuration: Routers and Switches
Router R1 Configuration
Hostname and Enable Secret
hostname R1
enable secret cisco
IP Domain Name
ip domain-name reprobe.cl
Crypto Key
crypto key generate rsa
2048
Username and Password
username alumno password alumno
Line VTY Configuration
line vty 0 4
transport input ssh
login local
exit
SSH Configuration
ip ssh version 2
ip ssh authentication-retries 2
ip ssh time-out 60
Interface Configuration
FastEthernet 0/0.15
interface FastEthernet 0/0.15
encapsulation dot1Q 15
ip address 172.16.0.1 255.255.192.0
!
FastEthernet 0/
Read MoreNetwork Configuration for Three Routers and Three Switches
Hostname: R1
Enable Secret
enable secret cisco
IP Domain Name
ip domain-name reprobe.cl
Crypto Key
crypto key generate rsa
2048
Username and Password
username alumno password alumno
Line VTY Configuration
line vty 0 4
transport input ssh
login local
exit
SSH Configuration
ip ssh version 2
ip ssh authentication-retries 2
ip ssh time-out 60
Interface Configuration
FastEthernet 0/0.15
encapsulation dot1Q 15
ip address 172.16.0.1 255.255.192.0
FastEthernet 0/0.30
encapsulation dot1Q 30
ip address 172.16.96.1 255.255.240.0
FastEthernet
Read MoreData Structures and Algorithms in C: Implementations and Explanations
1) Implementing a Linear Queue in C
#include<stdio.h>
int q[10], ch, size, front=-1, rear=-1, item, i;
void enqueue()
{
if(rear == size – 1)
printf(“Queue Overflow
“);
else
{
if(front== – 1)
front = 0;
printf(“Insert the element in queue
: “);
scanf(“%d”, &item);
q[rear++] = item;
}
}
void dequeue()
{
if(front== -1 || front>rear)
{
printf(“Queue Underflow
“);
}
else
{
printf(“Element deleted from queue is : %d
“, q[front]);
front++;
}
}
void display()
{
if(front== -1 || front>rear)
{
printf(“Queue is empty
Exploring Tree Algorithms: Traversal, Search, and Height Calculation
public ArrayList<>> simplePaths(Vertex v1,Vertex v2) {
ArrayList<>>paths = new ArrayList<>>();
ArrayListpathCurr = new ArrayList();
TreeMap visits = new TreeMap();
Iterator itr = adjacencyMap.KeySet().Iterator();
while (itr.HasNext())
visits.Put (itr.Next(), false);
simplePaths(paths,(ArrayList) pathCurr.Clone(),(TreeMap) visits.Clone(),v1,v2);
return paths; }
private void simplePaths(ArrayList<>> paths, ArrayList pathCurr, TreeMap visits, Vertex current, Vertex
Circuit Switching vs. Packet Switching: Understanding Network Concepts
Circuit Switching
Circuit switching establishes a dedicated communication channel between two stations. Resources like bandwidth and switching network capacity are reserved exclusively for this connection. Once established, the transmission is transparent, as if the devices were directly connected. Circuit switching involves three phases:
- Circuit Establishment
- Data Transfer
- Circuit Disconnection
Key Points about Circuit Switching
- Operates at the physical layer.
- Requires prior resource reservation before
Computer Networks and Communications
Circuit Switching
Circuit switching establishes a dedicated communications channel between two stations. Resources are reserved for transmission, and the switching network is for the circuit’s exclusive use during the connection. The transmission is transparent because, once connected, it seems as if the devices are directly connected. Phases:
- Establishment of the circuit
- Data Transfer
- Disconnecting the circuit
Four Points to Highlight in Circuit Switching
- Circuit switching occurs at the physical level.