Speed-limiting switches are typically on three or more switches, and the new switch model two-tier device since 2008 can achieve the QoS speed limit of 1Mbps, such as the Cisco 2960 series switches. After this, most of the domestic standard two-layer switches can be long speed limit, the accuracy of the basic can reach 1Mbps, such as ZTE's standard two layer, H3C standard two layer can do. Older Cisco standard two-layer switches such as 2950-class swi
How to configure IP address and MAC address on a Cisco switch binding Content Summary: at present, many of the company's internal network, has adopted the MAC address and IP address binding technology. Here we will introduce the configuration of IP address and MAC address bindings for Cisco switches. Description: at present, many of the company's internal network, has adopted the MAC address and IP address binding technology. Here we will intr
Dual Switch stacking operationsFirst, the basic requirements:iOS version to be consistent, dedicated stacking module and stacking cable, maximum stack count 9Second, the advantages of stacking:High-density ports, easy to manageThird, stacking instances:1 : Clear the configuration of the two switches separately. 2 : Physically connected to the stacking cable, the connection method is Master's stack1 connected to the slave stack2 above. 3 : Open master,
I will introduce the key technical parameters of the switch to make it easier for users to compare the different products of different manufacturers when choosing the switch. Each parameter affects the performance, functionality, and different integration characteristics of the switch.
1, Forwarding technology: Switch
Experiment on single-arm routing using a layer-3 Switch
In the real environment, sometimes the gateway is not necessarily enabled on the router, sometimes the single-arm routing function is not necessarily connected to the interface on the router, you can use a layer-3 switch, because the vswitch itself has a variety of interfaces for flexible use, it is very common in practical work. Readers can compare th
A tiered switch is a type of switch. According to the design, the switch can be stacked on top of the other. This switch is different from a rack switch and can be placed in a network cabinet or separately. The functionality of a tiered
Switches and routers need to have certain security, that is, to timely configure a reasonable password, then if the password forgotten how to do? I have encountered this time, due to job transfer, the former network administrator left the department, but the switch set up a password, and did not tell me the successor of the network administrator. What do we do? It's too much trouble to send it back to the vendor. So I personally experienced a password
As one of the core devices in the LAN, the performance of the switch directly determines the data transmission performance of the network. However, after a long period of work, the switch will inevitably encounter such or such a fault phenomenon, in order to solve the problem in time, network administrators often take a remote approach to manage the switching system.
However, sometimes, we will encounter t
As the saying goes, the body is the capital of revolution, a person only strong physique can live better, in order to create greater wealth for society. Enterprise network is like a person, only security measures to do in place, the enterprise in all aspects of the operation of a better. In today's information age enterprises, information for the enterprise is undoubtedly the greatest wealth. With the spread of virus and the rampant hackers, enterprise network security protection has been greatl
The configuration of network management switch has always been fascinated by many people, not only for the general users, but also for many professional users, but also as an important and basic indicator of the level of network management. this is mainly in two reasons, one is the vast majority of enterprises configured switches are desktop non-network management switch, do not need any configuration, is
Tags: Cisco switchBasic configuration and management of switches• Technical Principles• The switch is managed in two basic ways: in-band management and out-of-band management.• The console port management switch through the switch is out-of-band management, which does not occupy the network port of the switch, and the
LAN switch is still more commonly used, so I studied the local area network switch basic technical indicators, here take out and share with you, hope for everyone useful. LAN Switch Basic technical indicators are more, these technical indicators reflect the technical performance and function of the LAN switch, is the u
Note: Each interface supports only one policy, and one policy can be used for multiple interfaces. Therefore, the download rate limit for the network segment under the port should be defined in the same policy
1. Start QoS on the switch
Switch (config) #mls QoS//Start QoS on the switch
2. Define Access Control List
Switch
Two-layer switchThe development of the two-layer switching technology is quite mature, the two-layer switch is a data link layer device, which can identify the MAC address information in the packet, forward according to the MAC address, and record the MAC address and the corresponding port in one of the address tables within oneself.The specific work flow is as follows:1 when the switch receives a packet fr
Overview:
Currently there are seven kinds of network card binding mode (0~6) bond0, Bond1, Bond2, Bond3, Bond4, Bond5, Bond6
There are three kinds of commonly used:
Mode=0: Balance load mode, there is automatic backup, but need "Switch" support and settings.
Mode=1: Automatic standby mode, if one line is disconnected, the other lines will be automatically prepared for assistance.
MODE=6: Balanced load mode, there is automatic backup, do not need to "
A netizen does not know the cat and the router, the hub, the switch difference between them what is different? Computer knowledge Network for everyone to answer:
A cat has at least two ports: one to the telephone line and one to the RJ-45 port (network cable)
Routers are generally one port: RJ-45 but one to connect the network, a LAN
A router and a cat are not the same device
Routers, simple is composed of LAN, and also provide including packet fi
Switch type (rack style, fixed-profile with/without expansion slots The rack switch is a slot-type switch that is scalable and supports different network types, such as Ethernet, Fast Ethernet, Gigabit Ethernet, ATM, Token Ring, and FDDI, but the price is more expensive. A fixed-profile band-slot switch is a
An engineer who has worked in the network industry for 10 years says that the first important thing in network construction is the demand, the second is the demand, and the third is the demand. It can be said that the user needs directly determine the purchase of equipment. After making the user needs, from a plane angle to make reasonable equipment purchase.
So how do we choose the two-tier switch we need?
1. Back Plate Bandwidth
Backplane bandwid
Test topologyEnvironment: DHCP server and DHCP clients belong to the same VLAN, but clients belong to different switches, and the L2 and L3 switches turn on DHCP snooping to concludeconfiguration of the L3 switch172.28.27.0 255.255.255.0172.28.27.254 172.28.28.15 ! ! 27IP DHCP snooping information option allow-untrusted //must add this command because the L3 switch also has DHCP snooping turned on, as explained belowIP DHCP snoopin
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