dynatrace llc

server, on the broadband access server for the corresponding protocol conversion, the data stream to the IP packet.The function of protocol conversion for IP packet/atm is in the atu-r of ADSL client device, which has nothing to do with Dslam. At present, can be used to provide a transport channel to host IP Services, to provide users with IP Access Service technology are: RFC 1483 bridge, PPPoE, RFC 1483 routing, PPPoA, PPP agent, NAT, L2TP.(1) RFC 1483 Bridge connection methodIn this way, Atu

compressor to compress JavaScript files (in fact, today Nodejs tools are more useful) compressing JavaScript files on the server (GZIP encoded) cache JavaScript files by correctly setting HTTP response headers to avoid caching problems by adding timestamps to filenames Using CDN Iv. Post-release performance testing and problem tracking Use the Network analysis tool to find bottlenecks in loading scripts and other resources on the page. Lazy loading of scripts can s

important JS loading hour, which is the product policy accounting methodTotal download Shicheneme promised to calculate the onload hour, such as promised to account for the synchronization load of all the time-loaded resources. If there is a lot of asynchronous foil on the page, you can end the asynchronous foil as the total download hourIv. Functional Monitoring ToolsBecause the method and policy of aggregating data are different, the front-end Function monitoring is divided into two types, no

fastest. But this situation is often impossible, let alone easy to achieve.If you can not reduce the complexity of the algorithm, you can also find the key points in the algorithm and improve the method, to play a role in improving performance. Suppose we have the following algorithm:The overall time complexity of the algorithm is O (N3), and the complexity is O (N x O x P) if calculated in individual access order. But anyway, when we analyze this code, we find some strange scenarios:

1. Basic structure of NICEthernet card in the data link layer of the chip is generally referred to as a Mac controller, the physical layer of the chip we simply call PHY. Many network cards chip the MAC and PHY functions into a chip, such as the Intel 82559 network card and 3COM 3c905 network card. But the mechanisms of MAC and PHY exist separately, but the appearance is a single chip. Of course, there are a lot of network cards Mac and PHY are done separately, such as D-Link dfe-530tx and so on

the system again, open the browser, enter in the Address bar: http://192.168.1.1 and press ENTERAt this point you can enter the Smartax mt800a settings screen. Since the operation is not difficult, I will not trouble the screenshot Focus: Configure PPPoE Step one opens the Web page "ATM Setting"; Step two in the "Connection Type" field Drop-down list to pull down the text box select the PPPoE LLC option; Step three: Modify the operation mode (Ope

services provided by the physical link layer and provides services to the upper level (LLC). The physical RF layer is defined by the GSM05 series standard, including the following: characteristics of carrier frequency and GSM channel structure, modulation mode of transmitting waveform and data speed of GSM channel, characteristics and requirements of transmitter and receiver. (2) Physical link layer The physical link layer runs above the physical R

Here is the actual process of a SYN flood attack I simulated in my lab This LAN environment, only one attack aircraft (Piii667/128/mandrake), is attacked by a Solaris 8.0 (Spark) host, network device is Cisco's hundred Gigabit Switch. This is a Snoop record on Solaris prior to the attack, and Snoop, like Tcpdump, is a good tool for network capture and analysis. You can see that before the attack, the target host received basically some ordinary network packets. ……? -> (broadcast) ETHER Type=88

destination port, and if the destination port is not blocked, the MAC forwarding entity forwards the frame from the destination port according to the corresponding relationship of the MAC address table. At the same time, the MAC forwarding entity can also filter, record MAC address and other operations. The function of the switch port is to receive or transmit data from the LAN to which it is connected. The state of the port is defined by the spanning tree algorithm, including forwarding, lear

indicates the frame type, L indicates 16 bits or 48 addresses, FF indicates that the frame is an LLC frame or is the Mac control frame. 4, the end of the address (DA) Indicate the station to which the frame wishes to be sent. The address can be a single station address, multicast address or broadcast address. 5, Source point address (SA) The station address where the frame is issued. 6, including the LLC