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such as the Cisco 2960x-24ps-l (24,000 Gigabit Port 4,000 gigabit), forwarding bandwidth 108Gbps, switching bandwidth 216Gbps, packet forwarding rate 71.4Mpps, according to the non-clogging line speed forwarding to calculate, exchange capacity of 2*28*1gbps=56gbps, The nominal 216Gbps is much higher than this, why? Is it due to the different design of the switch matrix? How did he figure out the 216Gbps? Again, for example: its packet forwarding rate
Contact with the switch has been for some time also, you can find that some of the content seems more confused, such as: Switch configuration default gateway, configuration of the specific command has been very familiar, but now is not quite understand why to complete the switch gateway settings, I also find some information on the Internet, and some say to remot
process switching based on kernel stack switching Difficulty coefficient: ★★★★☆ Experiment objective to deeply understand the concept of process and process switching, synthesize application process, CPU management, PCB, LDT, kernel stack, kernel state and so on to solve practical problems, and start to establish system knowledge. Experimental Content Today's Linux 0.11 uses TSS (later there will be a detailed discussion) and a command to complete the task
the requirements of policy-based networking, advanced QoSQualityofService: service quality) and other service improvements. The huge market potential has greatly stimulated significant investment by manufacturers in key network equipment, so that in a very short period of time, the emergence of a traditional second-layer switch, to the Advanced Layer-3 Switch, to the latest layer-4 or even layer-7
Switch principle, Switch principle, the concept of switching in networks and telecommunications. Frames on the Ethernet include the source MAC address and destination MAC address. The switch receives frames from the source device and quickly sends them to the destination address. The basic concept of exchange refers to the devices that make decisions based on the
When creating an ACL on a vswitch, you can use a string or a number to name the ACL. Generally, you can use a string + a number to name the ACL for easy identification; the standard ACL or extended ACL is identified by fields. For example, standard ACL and extended ACL are identified by extended ACL.The configuration in the following example shows how to create an extended ACL named anti-virus on the vswitch and apply the acl to the in direction of fastEthernet port 0/1:
next time the computer communicates with the same IP address, the MAC address is not queried, but the MAC address in the cache is referenced directly. In switched networks, the switch maintains a MAC address table and sends the data to the destination computer based on the MAC address. Why to bind Mac with IP address: IP address modification is very easy, and MAC address is stored in the network card EEPROM, and the MAC address of the network card
1, into the global configuration mode Switch-3548 > Enable Password: ******** Switch-3548 # config T Switch-3548 (config) # 2, enable the switch HTTP Server Switch-3548 (config) # IP HTTP Server 3, configure the host name Switch
Switch requirements 1. Switch to restore factory settings and its basic configuration. 1)//Enter privileged mode 2) del Config.text 2. Telnet mode to manage the switch. 1)//Enter the global configuration mode 2) enable password 0 [password] 3) Line 0 4 4) Password 0 [password] 5) Login 3. switch file backup,
In the daily use of switches, There will be various problems. The first problem is that the environment is wet, the circuit board is damp and short-circuited, or the components are due to high temperature and other problems, the following article describes the classification and troubleshooting of switch faults. Common switch fault categories: Several smart solutions are provided. The following describes
Command for basic configuration of Cisco2950 vswitch 1. Configure the IP address To be able to be managed by a network management switch, a management IP address must be assigned to it. By default, VLAN 1 of a CISCO switch is managed. VLAN, Which is configured with an IP address for the VLAN, and the switch can be managed by the network. The command is as foll
Network Environment: A 3550EMI switch is divided into three VLANs. vlan2 is the network where the server is located and is named server. The IP address segment t-[/[Xm1S3 is 192.168.2.0, subnet mask: 255.255.255.0, Gateway: 192.168.2.1 the Domain Server is windows 2000 advanceserver and serves as a DNS server. The IP address is 192.168.2.10, vlan3 is the network where client 1 is located, the IP address segment is 192.168.3.0, The subnet mask is 255.2
As a core network terminal in a LAN, maintaining the switch system becomes very important. In order to make the LAN work more stably, we often need to properly adjust the switch to ensure that the device can always run efficiently. Regular upgrades keep vswitches alive I have encountered a frequent network interruption fault, and each time I restart the switch sy
Experts tell you what a layer-3 switch is. Now every household has their own computer and understands what a layer-3 switch is. At that time, the layer-3 switch was based on software and the forwarding speed was very slow, later, it was developed to implement layer-3 switching with hardware. In, a layer-3 switch was bo
A switch statement allows a variable to be tested equal to the list of opposing values. Each value is referred to as a case, and the variable is switched on to check each switch case. In go programming, there are two types of switch. Expression switch-the value of the switch
This tutorial describes how to start and configure Cisco Catalyst 1900 series switches.1. Tutorial PurposeThrough this experiment, you can master the following skills:Familiar with switch startup interface;Configure the vswitch;Understand the port number of the vswitch.2. device requirementsThis experiment requires the following devices:One Cisco Catalyst 1900 Series Switch with unlimited models and Enterpr
The port of the core switch is mainly of the optical fiber type, but the price of the optical fiber port of the switch is very expensive. You must note that the optical fiber port of the switch is not stacked and can only be used for Cascade. Analyzes the connection methods and basic types of the optical fiber ports of the vswitch. Cascade uses both common ports
With the explosive growth of data traffic, the construction standards of data centers are constantly improving. Obviously, common switches cannot meet the needs of data centers, the data center switch has high capacity, large cache, virtualization, layer-2 TRILL and other technical features to meet your needs. What key parameters should a data center switch have? Port line rate forwarding:The current data
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
experiment six using three-layer switch to implement inter-VLAN routingFirst, the experimental target Mastering the configuration of the switch tag VLAN Master three layer switch basic configuration method; Master three-layer switch VLAN routing configuration method; Inter-VLAN communication throug
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