cisco 3560 layer 3

Configuration example of cisco router and layer-3 Switch environment, cisco layer-3 SwitchSimple environment configuration instance for cisco router

Cisco 3560 vswitch Port Speed Limit1. The network indicates that PC1 is connected to Cisco3550 F0/1 at a rate of 1 M. PC1 is connected to Cisco3550 F0/2 at a rate of 2 M. The G0/1 of Cisco3550 is the egress. Ii. Detailed configuration process Note: Each interface supports only one policy in each direction. One policy can be used for multiple interfaces. Therefore, the download speed limit of all PCs should

The Cisco layer-3 switch is another core switch developed by Cisco. It aggregates the bandwidth of the backboard of the switch that is stacked together, in this way, the total backplane of the switch stack is the sum of the bandwidth of several stack switches. Note that not only the ports used are different, but the ca

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 for Cisco switches Although single-arm routing solves the communication problem between different VLANs, it also has its fatal defects: -The single arm itself is the Backbone link of the network, which is easy to form a network bottleneck. -The sub-interface relies on physical interfaces, and the application is not flexible -You need to view the r

A typical LAN is to connect a core switch with a layer-3 Switch to several Branch switches (not necessarily with layer-3 switching ). We assume that the core switch name is com, and the Branch switches are par1, par2, and par3 respectively, which are connected to the core switch through the light module of port 1; assu

[Cisco] DHCP relay, layer-3 Switch VLAN Routing PracticeThe experiment topology uses the GNS3 0.8.6 simulator to build a DHCP server using Red Hat 6.5. The experiment requires configuring a layer-3 Switch VLAN routing so that VLAN10 and VLAN20 members can access each other.

Tags: HSRP working principle STP effect ACL access control List loop storm Cisco private protocolDay 031. What is HSRP? How does it work?HSRP: Hot Standby Routing protocolHSRP is a Cisco private protocol that ensures that user communication can be quickly and transparently restored when a network edge device or access link fails.This provides redundant rows for the IP network. By using the same virtual IP a

configuration ip address of the virtual interface, as the vlan gateway for different vlan Note: The IP address of the two-tier switch configuration VLAN can only be used as a device management address, with only one. Experimental Equipment : switch_3560 1 units, switch_2960 1 units, PC 3, straight line, crossover line.Experimental topology :Experimental steps:New Cisco

1. Prevention of MAC/CAM attacks1.1principles and hazards of MAC/CAM attacks1.2 typical cases of MAC/CAM attacks1.3 use port security feature to prevent MAC/CAM attacks1.4 Configuration1.5 use other technologies to prevent MAC/CAM attacks 2. DHCP attack prevention2.1 FAQs about DHCP management:2.2 DHCP snooping TechnologySurgery Overview2.3 Basic defense2.4 Advanced Defense 3. Principles and prevention of ARP spoofing/mitm (man-in-the-middle) Atta

(All of the following is the hand of pure hand, there are flaws in the place, please also contain a lot of information to send piglets to exchange!) ）(All content and annotations in this article are displayed in the recursive architecture, because the format display does not understand the point of understanding!) ）(In this paper, the command keyword is mostly used shorthand, if there is an unknown, it is best to type the command when you use TAB completion!) ）

Manual implementation usually refers to the use of some hacker tools to scan and sniff the network, obtain the management account and related passwords, and install trojans on the network to further steal confidential files. The attack and deception process is relatively concealed and quiet, but it is extremely harmful to enterprises with high information security requirements. However, attacks from Trojans, viruses, and worms often deviate from the attack and cheat itself. Sometimes, they are v

, default gateway 192.168.2.254, it belongs to VLAN 20. The f0/24 port of the 2960 switch is connected to the f0/1 port of the 3560 L3 switch and is set to the trunk mode. PC0 and PC1 belong to different VLANs. data communication between them must first be transmitted to the layer-3 Switch through the trunk link, and then forwarded to different VLANs by the

The layer-3 switch you know works like this. It works like a layer-3 switch. Why do we say that the L3 forwarding performance of a layer-3 switch is much higher than that of a router? Sometimes it is mentioned in many books that

encapsulate the PPP protocol and adopt CHAP for authentication. In Router1, a user should be created and the peer vro host name should be used as the user name, that is, the user name should be router2. At the same time, a user should be created in Router2, with the peer router host name as the user name, that is, the user name should be router1. The password of the user must be the same. The settings are as follows: Router1: Hostname router1 Username router2 password xxx Interface Serial0 Ip a

Switching environment and contains a route table mapped to the layer-3 virtual circuit. Allow more than two computers on the same end of the ATM network to send data through a virtual circuit, thus reducing network traffic. MPOA (MultiProtocolOverATM): A specification proposed by the ATM Forum. When requested by the source client, the optimal transmission path is provided after the route is calculated. The

Cisco PT Simulation Lab (3) vswitch Telnet remote login configuration, ciscotelnet Cisco PT Simulation Lab (3) vswitch Telnet Remote logon Configuration Objective: To master the vty line configuration of a vswitch and implement remote management of the vswitch through telnet. Tutorial Background: After you configure th

What is the second-layer forwarding mechanism? Learning thread and message forwarding thread.Layer 2 only depends on the MAC addressIP-independent So the IP-MAC binding on the second layer is invalid. The forwarding mechanism of a layer-3 Ethernet switch is divided into two parts:

security (relative dynamic routing to be stable)Disadvantages1, must really understand the network2, for the new network configuration cumbersome3, for large-scale network workload is huge• Applications: Small to medium-sized networks with no or small expansion plans• Static routing configuration:Router (config) #ip route target network subnet mask next router address (i.e. gateway, interface address of nearest router to subnet)When you configure a static route, you must configure a reverse pat

downstream interfaceLimit rate speed, calculated as follows:assuming that 2960 is the port, so the simple set speed limit is*15=720 Note: IP DHCP snooping limit rate needs to be set only if the DHCP snooping converged switch or core is enabled. If there is a large number of access layer switches under a core or aggregation switch, the speed limit setting needs to be noted because the maximum limit rate for the port is 2048, soyou need to adjust the