cisco textbooks

Investment Protection and Development Options With the development and changes of the Enterprise, you can leverage the Scalable Cisco stack architecture to ensure the synchronous development of your LAN. Cisco provides the industry's most flexible, scalable, and manageable stacking architecture for the Catalyst 3500 XL series and the Catalyst 2900 XL series switches with gigabit performance. You can create

VLAN database is configured, you must enter exit to save it;VLAN troubleshooting: physical connection> Switch configuration> VLAN configuration;Physical connections include CDP and duplex;The Trunk is a link between two vswitches;802.1 p: Priority of the 802.1qTAG field;Tunnel requires two tags: one for the enterprise and one for the carrier. The carrier can transmit VLAN, CDP, VTP, STP, and other information;Native VLAN is unique to 802.1q. It is vlan 1 and is used to manage VLANs;ISL will als

Configuration mode for Cisco routers Configuration mode Prompt Enter command Description User mode Route> User mode is the default mode when the router starts, provides limited access to the router, allows for non-destructive operations such as viewing the configuration parameters of the router, testing the connectivity of the router, etc., but cannot make any changes to the router configurati

Release date:Updated on: Affected Systems:Cisco Telepresence Recording Server 1.6.1Cisco Telepresence Recording Server 1.6Cisco CTMS: Cisco CTMS 1.6Cisco CTMS: Cisco CTMS 1.5Cisco CTMS: Cisco CTMS 1.1Cisco CTMS: Cisco CTMS 1.0Cisco TelePresence Manager 1.6Cisco TelePresence Manager 1.6Cisco TelePresence Manager 1.5Cisc

Cisco Fabric Manager is a Web-based, easy-to-use, responsive application that can be used to manage switches and networks in an integrated manner, thus simplifying the storage lan san) management of Cisco MDS 9000 series switches. Cisco Fabric Manager provides network-level management functions for storage administrators, including identification, multi-Switch co

The following describes how to use a Cisco switch and how to operate it. When we debug a switch, the switch displays the details of each port in sequence, this includes port disconnections and explains the accumulated information. Cisco is the main force in the entire vswitch. Its products are doing very well in the market. The following article will detail some of the usage skills and precautions of

This is an article about the Cisco router IP address, which is very old and should be useful to everyone, so we have selected it from the vast network. Hope you don't sink it down. We will give you a satisfactory response on how to use the IP address of the Cisco router to obtain traffic. When using a cisco router as an Internet Router, cisco's IP packet filterin

This article is intended for CISCO router users. It mainly introduces technical issues related to basic network equipment, regular system upgrades, and use of CISCO routers. I hope this article will help you. These two tools enable communication between devices connected to the network and other networks. Although vrouters and vswitches look very similar, they have different functions in the Network: vswitc

Abstract: This article describes the first time that the author personally contacts the Cisco PIX Firewall and summarizes ten basic configurations of the firewall. A hardware firewall is a wall between networks to prevent illegal intrusion and filter information. In terms of structure, it is simply a PC-type computer host with Flash) and firewall operating systems. Its hardware is similar to the common control machine, which is suitable for 24 hours

Demonstration: Hybrid configuration of Dynamic Routing Based on Linux winows cisco Environment With GNS3 + VM, you can complete all the experiments on one physical computer) Supporting Demo Video: http://edu.51cto.com/course/course_id-499.html Training focus:The configuration is based on the dynamic routing protocol r12002 in different operating system environments of Cisco, Linux, and Windows to meet the

Some of the comrades may not be very clear about the DHCP configuration of Cisco routers, and most people do not know about the computer, so, the customer asked us to allow any computer to access the LAN to access the Internet, so we had to configure DHCP 2600. 2600 router we identify as: Cisco enters global mode. Cisco (config) # ip dhcp pool server "server" is

Cisco has become a leader in the communication industry, and its product performance is still very good. Here we mainly explain the common problems and solutions of Cisco switches. Here we will share with you some of them, I hope it will be useful to you. Cisco switch FAQ 1: What switches Does Cisco currently support l

After the update is completed today, a long Cisco router command is divided into three articles, which will be helpful for users to read and hope that everyone can get the result from it, I believe these articles will certainly help some people. I. Starting with the Cisco router command M:Mbranch traces the multicast address down to the terminalMedia-type defines the Media typeMetric holddown isolates the n

Cisco is the main force in the entire vswitch. Its products are doing very well in the market. The following article will detail some of the usage skills and precautions of Cisco switches, in many organizations, the core backbone switches are primarily Cisco. In the process of debugging and maintaining Cisco switches,

With the development of China's routing industry, its application is also more extensive, especially the application of routers and firewalls. Here we mainly explain the security configuration of NetEye firewall and Cisco router. Firewall has become a key part of enterprise network construction. However, many users think that Cisco routers already exist in the network and some simple packet filtering functi

Cisco NX-OS MTS Remote Denial of Service Vulnerability (CVE-2014-2201) Release date:Updated on: Affected Systems:Cisco NX-OS 4.2 (6)Cisco NX-OS 4.2 (4)Cisco NX-OS 4.2 (3)Cisco NX-OSDescription:--------------------------------------------------------------------------------Bugtraq id: 67578CVE (CAN) ID: CVE-2014-2201Cis

Release date:Updated on: Affected Systems:Cisco IOS xr4.2Cisco ios xr 4.1.2Cisco ios xr 4.1.1Cisco ios xr 4.1.0Cisco ios xr 4.0.4Cisco ios xr 4.0.3Unaffected system:Cisco ios xr 4.2.1Description:--------------------------------------------------------------------------------Bugtraq id: 53728Cve id: CVE-2012-2488 Cisco ios xr is a next-generation network and Cisco carrier routing system. Implementation Vulne

Cisco AsyncOS Denial of Service Vulnerability (CVE-2016-1382)Cisco AsyncOS Denial of Service Vulnerability (CVE-2016-1382) Release date:Updated on:Affected Systems: Cisco AsyncOS Description: CVE (CAN) ID: CVE-2016-1382The Cisco AsyncOS operating system improves the security and performance of

Maybe many people do not know the actual application of the NetEye firewall and the Cisco router. Next we mainly analyze the security problems of the NetEye firewall and the Cisco router. Firewall has become a key part of enterprise network construction. However, many users think that there are already routers in the network and some simple packet filtering functions can be implemented. So why should we use

No one liked this, but sooner or later there would be a router crash. All that should be done now is to save the key information in the router memory so as to identify the cause of the router crash and prevent this situation from happening again. To do this, you need to configure the vro to save the core dump information stored on the vro at the time of crash. Next, I will tell you what is the core dump information, what is its usefulness, and how to save these files that are very important for