cisco 9k switches

The previous one to everyone talked about the basic operation of Cisco switches, before the Dragon Boat Festival holiday, the Cisco switch to share a simple configuration and wish you a happy Dragon Boat festival! Ok, to configure the switch, you must first enter the switch's global configuration mode, successfully connecting to the switch and landing successfull

The management of the equipment is the basic condition for maintaining the normal operation of the equipment, so let's take a look at some basic management commands and methods of Cisco routers and switches. The methods and commands for managing routers and switches are mainly divided into several areas: 1, understand the command line mode. 2, configure the IP

Tags: switchesSpecifically, refer to the following command:1 Local operation(1) Set password for privileged modeswitch>enable//Entering privileged modeSwitch#configure Terminal//Enter configuration modeSwitch (config) #enable password 123456//set Privileged mode password(2) Enable Vlan1 and configure IP addressSwitch (config) #interface vlan 1//Enter VLAN1Switch (CONFIG-IF) #no shutdown//Open Vlan1Switch (config-if) #ip address 192.168.1.100 255.225.255.0//Configure IP address for VALN1(3) Set t

Cisco switches: Show logging found the following log on the central switchAPR 10:24:16.265:%ip-4-dupaddr:duplicate address 172.30.30.62 in Vlan711, sourced by 0009.6b84.189e; description has ARP virus,2, the implementation of Conf t,mac-address static MAC address VLAN ID drop;3, the host has the ARP virus processing, and then on the central switch executionNo mac-address static MAC address VLAN ID drop, whi

MSTP intercommunication between Cisco and H3C switches 1. MSTP introduces the concept of "INSTANCE" INSTANCE and "REGION" REGION. An instance is a collection of multiple VLANs. In this way, you can bind multiple VLANs to an instance to save communication overhead and resource usage. "Domain" is determined by the domain name, revision level, and format selector. The relationship between VLAN and instance. Th

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 ensure that all devices have a default configuration. make sure you understand the potential impact of any configuration or command on your network before using it.Catalyst 6500 SwitchNote: The following scr

the above technologies on CISCO switches to address typical Layer 2 attacks and spoofing, to prevent man-in-the-middle attacks, MAC/CAM attacks, DHCP attacks, and address spoofing in the exchange environment, more importantly, address management can be simplified through the deployment of the above technologies, track user IP addresses and corresponding switch ports directly to prevent IP address conflicts

Switch Stack-ports displays full port information for the stack switchStacking common, at present in some financial, logistics enterprises are very common, and the other side of the enterprise is not bad money, as long as the program is reasonable, the budget cost is not very small, so here again to emphasize the professional quality of the network workers have been seasoned pre-sales program capabilities.Think of learning as a living habit.-----------is shared by a network of two-tier operator

Overview of LAN Switches The LAN switch has developed into a more expansive space from the traditional hub-and-LAN. For example, Cisco's Catalyst 5000 series LAN switch includes an integrated switched hardware architecture that supports switched 10-mbps Ethernet and 100-mbps Fast Ethernet, with Fast Ethernet, FDDI, switched token Ring, and layer 3rd switching capabilities. This class of switches can provid

To prevent IP address theft or employee IP address tampering in a Cisco switch, you can take the following measures: binding an IP address to a MAC address and binding an IP address to a vswitch port. 1. Check the port through IP Address Check the MAC address first, and then check the port based on the MAC address: Bangonglou3 # Show ARP | include 208.41 or show Mac-address-table to view the IP-Mac table of the entire port Internet 10.138.208.41 4 00

takes more time to set Intel vswitches. VTP protocol is not supported on Huawei 8016 devices, VTP protocol is supported on other devices 2026 and 8016, and VLAN1 cannot be configured on, therefore, the network segment of the network management device must be adjusted to other VLANs other than vlan1. in this way, the management VLAN of the TRUNK port should also be changed. CISCO uses the native vlan command, While Huawei uses the default vlan command

I. Network Complexity General networks include routing, dialing, switching, video, WAN (ISDN, frame relay, ATM ,...) , LAN, VLAN ,... Ii. Fault Handling Model 1. Define the Problem) Detailed and accurate description of fault symptoms and potential causes 2. collect detailed information (Gather Facts) R> Source: key users, network management systems, routers/Switches 1) identify symptoms: 2) Repeat the fault: The verification fault still exists 3) faul

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 route table for each vlan forwarding, wasting

Release date:Updated on: Affected Systems:Cisco NX-OS 5.xCisco Nexus 7000 Series SwitchesDescription:--------------------------------------------------------------------------------Bugtraq id: 55600Cve id: CVE-2012-3051 Cisco NX-OS is a data center-level operating system that represents a modular design, always-on and maintainability. The Cisco Nexus 7000 series switche