#!/bin/bash#Remove the mer.*_ in file name is all of the files in a dirfunctionGetdir () { forElementinch' ls $` DoDir_or_file= $"/"$element if[-D$dir _or_file] then Getdir$dir _or_file Else #deal with all file in DirMv$dir _
In the PHP page controller, ifexit is used to handle various event operations sent by frontend JS. JS is the frontend, PHP is the backend, and backend PHP needs to obtain the frontend JS variables, the front-end JS can transmit data to the backend
How does a multi-layer switch realize interconnection between different network segments ?, Multi-layer switch
Lab Name:How does a multi-layer switch implement intercommunication between different network segments?
Lab requirements:
(1) layer-3
ACL Advanced Applications 1 , using ACLs to detect SYN flood attacks Each SYN message received by the server needs to establish a connection and allocate core memory for the link information, put this link into a half connection, and then respond to
How to use a vro to connect different VLANs of a single-layer switch
Some simple configurations of the experiment
First configure PC
PC1 IP: 192.168.1.1 subnet mask: 255.255.255.0 Gateway: 192.168.1.254
PC2 IP: 192.168.1.2 subnet mask: 255.255.255.0
Port borrow IP Address
The main purpose of the IP address borrow function is to save valuable IP Address resources. If an interface does not have an IP address, it cannot generate a route and forward packets. The essence of the so-called "borrow IP
Lab Environment Description:
1. Set the ip address of the Fa0/0 interface of router R1 to 192.168.0.1/24, and the ip address of interface S1/2 To 192.168.1.1/24;
2. Set the ip address of the Fa0/0 interface of router R2 to 192.168.2.2/24, and the ip
It's classic. I use it.DeploymentsThe deployments in this document were implemented in an isolated lab environment. the deployments were cleared by issuing the write erase command on the routers, and the clear config all command on the switches to
Router> en
Router # conf
Starting ing from terminal, memory, or network [terminal]?
Enter configuration commands, one per line. End with CNTL/Z.
Router (config) # host R4
R4 (config) # int lo4
% LINK-5-CHANGED: Interface Loopback4, changed state
Layer-3 switches of Cisco devices practice communication between different VLANs.
Layer-3 switches of Cisco devices practice communication between different VLANs.
Cisco device layer-3 Switch implements communication between different VLANs
Prepare
Technical principle:
OSPD Open Shortest Path priority protocol. is one of the most widely used routing protocols in the current network. belongs to the internal network routing protocol. Being able to adapt to network environments of all sizes is a
By default, you need to pay special attention to how to effectively configure static routes. Here we will give you a detailed introduction to this problem. Default route: the default route (default route) is a special type of static route.
When the
Lab environment:
1. the topology is simple, but classic. The experiment is completed using the GNS simulator.
2. Four 36XX routers, one of which is configured as FR-SW. The router is directly connected to the frame relay switch.
Lab requirements:
1.
The principle of layer-3 switching and the principle of DHCP are not explained here. Here we use a case to learn how to use layer-3 switching as a DHCP server and assign IP addresses to different network segments. In the production environment, it
Cisco router VLan isolation LAN broadcast packet configuration experiment and summary, ciscovlan
1. Tutorial Description: connect to and set the IP address of the PC according to the network topology. PC1 and PC2 are required to be accessed on VLAN 1
PPP Multilink, which requires our attention and knowledge in PPP protocol learning. I believe you have mastered the concept of PPP Multilink. Here we will focus on the configuration of PPP Multilink. So this article uses two E1 bindings to implement
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