products. The use of advanced VOFDM technology to achieve no line-of-sight communication, in the buildings in the city using "multipath" to achieve a single carrier 6MHz bandwidth up to 22M p BS data access services, the spectrum efficiency is high, In the 2.5GHz band can reach 90% of the communication probability, in the 5.7GHz frequency point can reach more than 80% of the communication probability.Since the current radio and television system basically realized the use of optical fiber trans
1: There are many ways to connect to a network, but I have not found a book that can be fully understood. Can you summarize it? From dial-up to optical fiber access and other access methods, provide a practical operation manual or solution with various access cases.
Question 2: leased line connection. Connect networks in different plots to form a LAN. Which methods are available? If I applied for an SDH/DDN/MSTP leased line access in China Telecom, c
occurs when reading and writing the MD device.
3. Quick test command
When creating a disk, if the data on the device is already synchronized (sync), or only used to test the array, you can use the -- assume-clean parameter to notify the MD driver that the array does not need to be initialized.
Mdadm-C/dev/md0-l5-n6/dev/sd [B-g]-x1/dev/sdh -- assume-clean
If you want to avoid the previous metadata prompts on the device during each command creation by
A DB link must be established between one Oracle database and another oracle database a few days ago to insert data from one server to another.
Oracle Server A: Sid: SDH, USERID/PW: Nm/Nm
Oracle Server B: Sid; gsgx, USERID/PW: GS/GS
Create the following dB link:
Create a DB link from B to:
Create database link testdb connect to nm identified by nm using 'sdh ';
DB link is created successfully. Select
-multipath user tool: Use the FDISK command to see the 4 disk devices identified by the system, which are the device names of multiple paths, actually pointing to the same LUN on the storage, This indicates that the red flag operating system has correctly identified the LUNs partitioned by EMC CX storage and is preparing for the next multi-path management. The command and output are as follows:#fdisk-Ldisk/dev/sdf:103 GB, 107374182400 bytes heads, sectors/track, 102400 cylindersUnits = Cylinders
station NodeB and the base station controller RNC. Because node B is usually very decentralized, the transmission from Node B to RNC often requires access and aggregation of two tiers of network, while the implementation of Node B traffic statistics multiplexing and convergence to improve transmission bandwidth utilization and reduce the ability to support the RNC port too high requirements, In Utran transmission network, 3G service is often required to converge on ATM/IP. (Computer science)
3
the entire scheme very expensive and difficult to implement.
MSTP is the most suitable
MSTP provides a network platform based on SDH, providing a wide range of business interfaces and processing capabilities, providing flexible support for ATM, IP and TDM services, and delivering efficient transmission solutions for 3G operators. In view of the business features of the metropolitan Area Network, UT has developed a new generation of netring series o
1) Otuk (k=1,2,3,4 ...) frame rate
Unlike the Sdh/sonet basic 8K frame cycle, with the increase of the line rate, the structure and length of the g.709 frame are constant, and the frame cycles of different rate classes of OTN are not the same.OTU1 48.971usOTU2 12.191usOTU3 3.035usThe frame rate of OTN is specifically designed for SDH, where OPUK frames can be fitted with
Recovery (CDR)
The goal of the CDR is to find the best sampling time, which requires a rich jump in the data. The CDR has an indicator called maximum 0 or even 1 length tolerance (Max Run length or consecutive identical Digits) capability. If the data has not been skipped for a long time, the CDR will not be trained accurately, and the CDR sampling time will drift and may be 1 or 0 more than the real data. And when the data is re-resumed, it is possible that the wrong sample will occur. For
pattern. Or talk in code?
// Objects implementing the Handler interface can be // registered to serve a particular path or subtree // In the HTTP server. // Interface { **servemux) Handler (R *requst) handler { ...} Mux. Handler (R). Serverhttp (W, R)
, the implementation of the handler interface can be registered as an item of the route (Entry) to the route, Servemux, in the routing process,
We first extract the corresponding entry according t
( "Config.json" ) if err! = nil {log. Fatalln (Err)}//decode JSON decoder: = JSON. Newdecoder (r) Err = decoder. Decode (conf) if err! = nil {log. Fatalln (Err)}}
After calling loadconf (), you can use the configuration in conf anywhere.
Web Interface (GORILLA/MUX)
Base Route
Golang on the most simple-to-use URL router, I think is "Github.com/gorilla/mux".To use this requires go get, forget to say,
} d.handler.ServeHTTP(w, r)}// SetHandler is used to overwrite the HTTP handler for the API.// This can be the api router or a reverse proxy.func (s *Server) SetHandler(handler http.Handler) { s.dispatcher.SetHandler(handler)}
Server.SetHandlerAll that is done is to handler assign to Server.dispatcher.handler . handlerthe type is HTTP. Handler:
type Handler interface { ServeHTTP(ResponseWriter, *Request)}
api.NewPrimaryUsing the MUX this
This is a creation in
Article, where the information may have evolved or changed.
Today Bo Main research finished things is too late, we can see time one o'clock more, today is code 1, tomorrow is the explanation, we first study[PHP]Package Main
Import ("FMT""Html/template""Log""Net/http""OS""Time")
Const (Template_dir = "./views/")
var mux map[string]func (http. Responsewriter, *http. Request)
Func Main () {Server: = http. server{ADDR: ": 9090",Handl
the graphical interface or through command lines.
Vlc1 requests media data from the Darwin server and then packs it into a TS stream and sends it out. vlc2 receives and plays TS stream data;
Throughout the process, packet capture proves that the TS stream is in the middle.
Of course, there is also a problem, that is, there will be mosaic in the image. It is assumed that there is a problem with the B frame PTS and DTs.
Another problem is that the SDP file cannot be generated because we need to i
For more information about datasheet translation, see datasheet 3.9.6.
---------------------------------
3.9.6 reset Sequence
When the reset # signal is low, the clock generator enters the bypass mode. At this time, the input clock is set to clkin or x2/clkin Based on the gpio4 status. When the level of the reset # pin changes from low to high, the following events are performed in sequence.
Gpio6 and gpio7 are sampled at the rising edge of the reset signal. The status of gpio6 and
"back" will go to the first page of the calendar application.
The intermediate interface point "return" in the indirect notification returns to the interface that triggered the notification, and the return path will not be inserted into another interface. Once the user has entered the application through the intermediate interface, the logic of "up" and "return" is the same as the standard notification: Navigating between applications without returning to the intermediate interface
Reproduced from: http://blog.sina.com.cn/s/blog_475bf56e0100uo3o.html
When you developed on a Linux virtual machine, you encountered the following error:
Making all in TestMAKE[5]: Entering directory '/home/linux/software/zion/media/mux/disk/test 'Powerpc-e300c3-linux-gnu-gcc-dhave_config_h-i.-I.. /.. /.. /.. -I.. /.. /.. /.. /include-i.. /video/common_inc-include.. /.. /disk.h-include.. /.. /MUX_DISK.H-FNO-EXCEPTIONS-O2-FNO-EXCEPTIONS-O2-MT Umount_
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