dwdm multiplexer

and security restrictions. The relay circuit between Chinanet network nodes is based on SDH and DWDM fiber network, the total network bandwidth exceeds 800G, the total international export bandwidth has exceeded 5000MBP 2007 at Shandong University, Bachelor of Computer Science and technology, has been engaged in Huawei for many years in the development and operation of network equipment management system software; currently serving on the Tiger Too

a MPSL VPN system for the company in Beijing, Shanghai, Guangzhou, Fuzhou and other places in 11 offices to provide MPLS VPN access services. Hu Xiangdong introduced the program, including local access, remote access and regional center, such as the typical access mode. After the project project through acceptance, Tatsu group will realize the internal network seamless connection, has a fast and secure network environment, and can further expand the external network, convenient and partners, su

with 10G+DWDM, can also be down with a variety of interfaces connected to the access network. 2. The powerful function chip design: its low order cross chip may complete simultaneously 16 road VC4 Tupp processing and the 1008x1008vc-12 level cross, such formidable chip greatly enhances the system the integration, is also the system function is powerful but also the structure simplification basic guarantee. 3. Dual-clock bus structure, power supply

telecommunications network With the increasing popularity of gigabit to desktop, Gigabit Ethernet technology will be widely used in the convergence layer and backbone layer. But in the current network situation, the first application of Gigabit Ethernet will be the education industry and data center export, the backbone of the metropolitan area network. When building a metropolitan area network, if the convergence layer and even the backbone layer Unified Ethernet technology, will have equipm

Label:Create simple HU Storage Process1. Call table Activitybudgdetailzk, Organization, the relationship between the two tables is Dwdm=organizationcodeCreate PROC Re_getlistbudgbytype---the name of the stored procedure to be created@type int, @xq varchar---parameters for performing stored procedure operationsAsSELECT a.*----Set up data to find out all the columns of a tableFrom Activitybudgdetailzk A, Organization oWHERE A.dwdm=o.organizationcodeand

Machine7 192.168.1.101 Otherpc Otheralias /etc/services: Network Service list and mapping between service and port number/etc/services contains all of the network service name and port number mapping between, a lot of system programs to use this file. Linux System Port Classification: Universal Port: 0-1023 can be registered port: 1024-49151 Dynamic or Private port: 49152-65535. The following are the first few lines of the default/etc/services in Redhat installation:HTML code

Tmux (full name is Terminal multiplexer) is an excellent end-use software, similar to GNU screen, but from OpenBSD, with BSD licensing. The most intuitive benefit of using it is that when you log in to a remote host through a terminal and run Tmux, you can open multiple consoles in it without having to "waste" redundant terminals to connect to the remote host, which is much more than that. Advantages over screen: You can split the windows horizontally

is established successfullyNIO: (New io/non-block IO) is a non-blocking synchronous communication mode. Communication between client and server via channel (avoid the overhead of using three handshake for TCP to establish a connection). NiO reads and writes to the channel. These channel will be registered on the selector multiplexer. The selector polls the channel through a thread without stopping. Find out which channel is ready to perform IO operat

adding the following line of code to .zshrc or to .bashrc the file:You can also map your escape key like Vim: 1 bindkey -M viins ‘jj’ vi-cmd-mode Another benefit is that you can j、k go through the natural browsing history. You can also .zshrc add functionality in your files by following the code ctrl-r .8. Add Tmux to WorkflowTmux is a terminal multiplexer that allows you to connect and manage multiple server-side sess

telnet or ssh telnet to Linux, if the connection is not normal interruption, reconnect, the system will open a new session, unable to restore the original Session.screen command can solve the problem. The screen tool is an end-multiplexer, in essence, which means you can run multi-terminal applications using a single terminal window.Screen-lsScreenThere is another tmux that is also very powerful.Tmux can configure its own shortcut keys in the ~/.tmux.

concept, and it works as follows:Figure 6-4 Netty 4 serialization design conceptA nioeventloop aggregates a multiplexer selector, so it can handle hundreds or thousands of client connections, and Netty's processing strategy is to have a new client access whenever The Nioeventloop thread group in order to obtain an available nioeventloop, when the upper bound of the array to return to 0, in this way, you can basically guarantee the load balance of eac

, read and write events, the channel is in a ready state and will be polled by selector. The Selectionkey can then be used to obtain a set of ready channel for subsequent I/O operations. A multiplexer selector can poll multiple channel at the same time, because the Jdk1.5_update10 version (+) uses Epoll () instead of the traditional select implementation, so it does not have the maximum connection handle 1024/2048 limit. This means that onl

socket is sent. The I/O multiplexer will continue to transmit the next socket to the file event dispatcher after the event that the previous socket generated has been processed. I/O multiplexing programs are implemented by wrapping the I/O multiplexing Library of common Select, Epoll, Evport, and Kqueue functions. 2. Time Event Classification timed event: Specify time to execute once. Recurring event: Executes once at intervals. Currently, Redis onl

are synchronized, business threads are at risk of being synchronized blocking as long as they are IO, which can lead to poor reliability of the system, depending on the processing power of external components and network conditions. With non-blocking io (NIO), the three defects of synchronous blocking IO will be solved: NIO uses reactor mode, a reactor thread aggregates a multiplexer selector, which can register, listen, and poll hundreds of channel

Linux 2.6+ Platform Java provides the epoll mechanism, Mac OS X provides the kqueue mechanism, here is no discussion of IO multiplexingB. Getting the server channel object for binding listening portsC. Set service mode to Non-blockingD. Register channel on selector, let selector to manage IO we care aboutE. Selectionkey understood as an abstraction between selector and channel (2) Implementation of the Runable interface of the Run method public void Run () { try {a while ! Threa

: Using Tk using Winston; Using Strategydata; W = tk.toplevel ("Policy multiplexer Helper _ Days Policy", 400,300) F = tk.frame (W); Tk.pack (f, Expand=true, fill= "both") ei = tk.entry (f) #输入标的 e = Tk.entry (f) # Enter the starting Time RB = Tk.radio (f, ["back to disk "", "forward Back"]) # Forward or backward recovery disk B = Tk.button (f, "policy reset Please press =>ok") txt = Tk.text (f, width=50,height=40) # If you have more transactions on

a domain name server, all network programs on the system query the file to resolve the IP address corresponding to a host name, otherwise, other host names are usually used by DNS to resolve, the DNS client part of the configuration in file/etc/resolv.conf. /etc/services The/etc/services contains a mapping between the service name and the port number, and many system programs use this file, and the following is the first few lines of the default/etc/services in the Redhat installation: Tc

# TCP port service multiplexer Echo 7/TC P Echo 7/udp Discard 9/tcp sink null Discard 9/UDP NULL Sy Stat 11/tcp users Daytime 13/tcp Daytime 13/udp netstat 15/tcp QOTD 17/TCP Quote MSP 18/TCP # Message Send protocol MSP 18/UDP Chargen 19/tcp ttytst source Chargen 19/udp ttytst source Ftp-data 20/TCP FTP 21/tcp FSP 21/udp fspd ssh 22/tcp # ssh Remote Login Protocol ssh 2

Av_register_all ();//initial Dissolve code device and multiplexer avformatcontext* Ofmt_ctx = null;//It contains a lot of code flow parameters, is a data structure throughout the constant, many functions have to use it as a parameter First create an encapsulation format, AVFORMAT_ALLOC_OUTPUT_CONTEXT2 (OFMT_CTX, NULL, NULL, OUT_FILENAME.C_STR ());//Initialize a AVFORMATCONTEXT structure for output, Video frame rate and width height set in this func

, which should include the IP address and name of Node A, the address and name of the Discovery Agent (DA) in Node A, the address and name of the terminal and adapter (TAP), and the local wavelength port (Tcp-id). The message uses PPP/HDLC frame format, modulation to the wavelength λ1, from the sending module to the wavelength of λ1 optical switch, and cross connected to the specified port, the port's wavelength signal by multiplexer, optical amplifie