switch port mapper

A vswitch is the transportation hub of the campus network system. Its management features determine the overall performance of the campus network. Some Network Management switches do not have default IP addresses, so they cannot be managed through Telnet or Web during initial configuration. At this time, we need to manage the switch through the serial port. Next, we will show you how to use a serial

Linux Switch port issues:We know some common ports, such as MySQL Port 3306,sql port is: 1433, and Tomcat port is8008 and so on!When these ports are not opened under Linux, we are unable to use them, the database is unusable, the browser has noUse of the method. So how to so

In the Avaya switch user manual, Port monitoring is called "Port image" Port Mirror ).Run the following command to configure a port listener:{Set | clear} Port MirrorSet port listening:

Cisco switch port broadcast storm settings are more practical. When a port receives a large number of broadcast, unicast, Or multicast packets, a broadcast storm occurs. Forwarding these packets will slow down the network or cause timeout. Using broadcast storm control on ports can effectively avoid network paralysis caused by hardware damage or link failure. By

A two-uplink (Allied) port is provided in the converged upper mode. Uplink port is used to connect the superior switch or server, uplink port off flow control, other ports to open flow control, effectively improve diskless start-up speed, to protect online games, video smooth.

First, why is there a sticky security MAC address? The reason is that although the static security MAC address can make an interface of the switch to allow only a fixed computer access, but need to do is to find the MAC address of the computer, so, at this time with a sticky security MAC address this problemSW1 (config-if) #swSW1 (config-if) #switchport mo acSW1 (config-if) #swSW1 (config-if) #switchport POSW1 (config-if) #switchport

Router: interface FastEthernet0/0 ip address 10.3.5.2 255.255.0 duplex auto speed auto! Interface FastEthernet0/1 ip address 10.3.4.254 255.255.255.0 duplex auto speed auto! Interface Vlan1 no ip address shutdown! Router rip version 2 network 10.0.0.0! Layer-3 Switch on the left: spanning-tree vlan 10, 20, 30 priority 24576 !!!! Interface FastEthernet0/1 channel-group 1 mode on switchport trunk encapsulation dot1q switchport mode trunk! Interface Fast

It is well known that JZ2440 V3 is very small and exquisite. Today, we will discuss some problems with the JZ2440 serial port alone. When debugging with the serial port, we need to use a USB cable from JZ2440 to connect the computer USB port and the USB-COM1 port of the Development Board. Let's take a look at JZ2440 's

One, single port mirror 23 port mirrored to 24 portObserve-port 1 Interface gigabitethernet 0/0/24 (set observation port. 24)Interface G0/0/23Port-mirroring to Observe-port 1 {both | inbound | outbound}(All | In-direction | Outward flow)Second, multi-

data. // Analyze data // Omitted // To access the UI resources, you must use the invoke method to synchronize the UI. This. Invoke (eventhandler) (delegate { // Determine whether the display is 16 forbidden If (checkboxhexview. Checked) { // Concatenate a hex string in sequence Foreach (byte B in BUF) { Builder. append (B. tostring ("X2") + ""); } } Else { // Convert the string directly according to ASCII rules Builder. append (encoding. ASCII. getstring (BUF )); } // Appe

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

allow multiple vlan message not tagged, but trunk Span style= "font-family: ' The song Body '; > Port is allowed only with itself pvid same as vlan The message is not labeled when it is sent; when Hybrid Port is not tagged VLAN , untagged VLAN only one time, function with Access The same as the port; Hybrid

1. Catalyst 2900XL/3500XL/2950 series switch port monitoring configuration Run the following command to configure a port listener:Port monitorFor example, F0/1 and F0/2 belong to the same VLAN1 and F0/1 Listen to ports F0/2 and F0/2:Interface FastEthernet0/1Port monitor FastEthernet0/2Port monitor FastEthernet0/5Port monitor VLAN12. Configure

Introduction As the core network switch of our company, the CISCO3550 has been running stably for many years, and its functions can also meet our needs. However, its port speed limit function is not as easy to implement as some other switches, fortunately, the implementation method has been found recently. After the configuration is complete, it is verified with the iperf software. The result shows that thi

I. Open/Close firewall command under Linux1) Permanent, no recovery after rebootOpen: Chkconfig iptables on off: chkconfig iptables off2) immediate effect, restart after recovery on: Service iptables start off: Service iptables stop need to explain is the Other services under Linux can be turned on and off using the commands above. When the firewall is turned on, do the following settings, open the relevant port, modify the/etc/sysconfig/iptables file

Recently, the bandwidth in the IDC is always full. To measure the daily traffic and increase the bandwidth, the switch is the S5000 series of H3C, I thought of using a relatively mature MRTG to measure the traffic of the monitoring switch port. Next I will record the implementation steps for future use.Required devices:One management ip address of the H3C

Tags: ref text S/4 share picture TE forwarding csdn vlan equalAcess PortTicker: Determine if there is VLAN information: if there is no pvid on the upper port, and exchange forwarding, if there is a direct discard (default)Text: The VLAN information of the message is stripped, sent directly outTrunk PortTicker: Determine if there is VLAN information: if there is no pvid on the upper port, and exchange forwar

GF's iphone5s port version A1530 Unicom 4G is always unable to connect the problem, the root cause is that there is no 4G switch . The Hong Kong iphone only has a 3G switch. That is, when the 3G is turned on, the 4G signal is found, but only 3G and 2G are turned off. Let the phone signal stay on the 4G signal network. The 4G signal is now almost impossible to com

In order to achieve network redundancy, on the host side of the ESXi6.7, the network port of two running traffic is done teamning:On the switch side, the corresponding two switch ports do port aggregation Channel-group:After the completion of the virtual machine on the ESXi host Ping does not pass to the

We have explained a lot about the configurations of CISCO switches. Here we will mainly explain the port security configurations of CISCO 3550 switches. Scenario: There is a CISCO3550 switch in a certain unit. For the sake of network security, the security requirements for some ports are high, that is, only the specified host can be connected, for example, if you set up an office, only one laptop can access