I. Port Mirroring concept: Port Mirror is used for network performance monitoring. It can be understood as follows: Establish an image relationship between port A and port B. In this way, data transmitted through port A will be copied to
Session 1 Port SecurityThe MAC address in the network is the constant physical address in the device, the control of the MAC address access control the switch port access, so port security is also the security of the Mac. In the switch, the cam (content addressable memory, t
置SNMP协议的读团体字符, must be consistent with the settings on the switch.⑥units #设置端口流量的单位.⑦use Custom Multiplier # tick, and set the value to 8, if not set, units Unit is bps.⑧update interval #根据服务器的性能和监控的设备数量来设置, the default is also available.650) this.width=650; "title=" 8 "style=" border-top:0px;border-right:0px;background-image:none;border-bottom:0px; padding-top:0
To configure a vswitch port image, experts can understand the following knowledge about the vswitch port image configuration. You only need to complete the vswitch port image configuration in a few minutes. The local connection is also mentioned in this article.
Vswitch images such as 3026]Vswitches such as S2008/S2016/S2026/S2403H/S3026 support
In the tree menu on the left of the switch management interface, select switch (switch) >>> Ports (port) >>> "portmirroring" (port mirroring), and the right opens "portmirroring" (Port Mirroring) page. The parameters in this page
range is 1~4094.
When you configure the watch port, if you do not specify a VLAN, the type of the observed port is local mirroring, and if you specify a VLAN, the type of the watch port is the remote mirror. 2. Configure the Mirror Port#将ETHERNET0/0/1----ETHERNET0/0/10 interface is configured as a mirrored
-Gigabit Switch with excellent performance does not have HOL. The test time is 15 seconds.
Deep test on address learning rate and address table
The address table thoroughly tests the number of MAC address tables for 24 full gigabit switches. The address learning rate checks the speed at which 24 full Gigabit Switches learn MAC addresses. We have used 24 ports A, B, and C of all gigabit switches. Ports A and B are used for sending learning frames and t
Huawei switch Port isolation, the implementation of the switch port is not interoperable, directly under each interface configuration port-isolate enable command. However, the Port-isolate command cannot be configured on an Allied
When maintaining the dormitory network for a few days, I encountered a very unique problem at the time: No matter how the 20 Ports of the vswitch on the fourth floor are connected, the link cannot be connected; when the switch enters, the port cannot be enabled; there is no problem connecting to other ports. I thought it was because the port broke down. Later I h
bound IP and Mac
(2) 1 port next to a small switch binding mode
such as: 1th ports under a 8-port access to a small switch, the switch has 3 computers, 3 computer IP and Mac as follows
1 Computer's ip:10.100.11.2 mac:00-1a-4d-
one thousand m switch. In general, the price of the desktop Gigabit Switch is still relatively approachable, making it possible for small offices to speed up in an all-round way, the cheapest Gigabit desktop switch costs only a few hundred yuan, which is very affordable. These products also have some characteristics in parameter indicators. The most important pa
bandwidth description:
When the Ethernet frame is 64 bytes, the fixed overhead of the 8 byte frame header and the 12 byte frame gap must be considered. Therefore, the packet forwarding rate of A 1-gigabit Ethernet port when forwarding a 64-byte packet is 1.488 Mpps. The 10-in-10 Gigabit Ethernet packet forwarding rate is 148.8 kpps.◆ For 10-Gigabit Ethernet, the packet forwarding rate of a wire speed
allow a maximum of 8 ports to be bound. If it is a 100Mbps port, it can reach 800mbit/s after aggregationif it is 1000Mbps Port, up to 8gbit/s after aggregationtwo-layer interface cannot be configured IP address, cannot announce route by agreement, only two layer Ethernet frame forwarding. the three-tier interface can be configured with IP addresses, can run rou
zabbix to monitor switch traffic. Instead, cacti is used. In fact, there is a problem with cacti, but you didn't meet it !!! The reason is that the data monitored by cacti is larger than that monitored by zabbix. The two sides are inconsistent. Back to question
In fact, to monitor the traffic on the vswitch port, pay attention to the two details.
1. The data unit is bit or bytes.
This concerns the issue of
;
# Returned
KermitTo connect to the serial port again, enter connect
Or c. 7. Download an object
For example, download the Kernel File/home/liuby/uImage:
First, make sure that
KermitConnect to the serial port, that is, the start is the input
Kermit-C
Or connect to the serial port;
Enter loadb 0x200000 in the u-boot command line;
Then press ctrl +/, and then pres
If there is no port aggregation on the switch. Your two computers are connected by two wires. is a loop, and it affects both the switch and the connected computer. Therefore, the port aggregation function is very important for the Internet Café switch.
Provides a brief over
Ordinary computers do not have a generic input outlet (GPIO), but sometimes I would like to enter a switch quantity.
For example, let the user pull the pull rope switch to start an application, such as a contact switch to determine whether the door is open or closed, such as ....
Demand is so simple, you are not willing to spend dozens of yuan to buy a single c
If there is no port aggregation on the vswitch. Your two computers are connected with two network cables. It turns into a ring, which affects both the switch and the connected computer. Therefore, the port aggregation function is crucial for Internet cafe switches.
This section briefly describes information about the port
printer can be modified. The higher the baud rate, the faster the transmission speed. If the printer has a dial switch, you can adjust the 7th or 8 bit switch to adjust the baud rate, if you do not have the dial switch, you can download the setting tool on the official website of Jiabo to modify the print baud rate.
Demonstration of port aggregation configuration and troubleshooting of Huawei switch s5700Huawei port aggregation is divided into two types: manual Load Balancing eth-trunk link and LACP eth-trunk link. I will only introduce the former here. The manual eth-trunk can be regarded as an interface, which can be access or trunk. After creation, the configuration is ex
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