dwdm 100g

signaling, seamlessly integrates the advantages of IP technology into the efficient hardware forwarding of ATM. MPLS is a connection-oriented transmission technology that can provide effective QoS Assurance; MPLS is a link layer-independent technology that supports X.25, frame relay, ATM, DWDM ......, Multi-network interconnection is ensured. MPLS supports a large-scale hierarchical network topology with excellent network scalability. MPLS label merg

MPLS (Multi-Protocol Label Switching) is an efficient IP backbone network technology platform. It provides a flexible and scalable backbone network switching technology for the next generation of IP networks. The use of MPLS technology will greatly improve network operation efficiency, achieve QoS division for IP network services, and rationally allocate network resources through traffic engineering to implement restricted routing, MPLS networks also provide efficient VPN services and real-ti

Optical network operators have not broken the so-called "configuration bottlenecks." They have struggled to meet the need for physical transmission and deployment of hardware platforms with unprecedented port density and throughput. But many operators underestimate the complexity of configuring a business in a multi-vendor (or multiple-business) environment. Speed of light configuration In order to make full use of the advantages of optical technology, operators must realize the automatic conf

Metropolitan Area Network is the extension and coverage of the data backbone network and long-distance telephone network in the area. It undertakes the complex tasks such as the group user, the commercial building, the intelligent district and so on the service access and the access, and so on, needs to realize the voice, the data, the image, the multimedia, the IP access and each kind of value-added service and the intelligence service through each kind of gateway, And with the operators of lon

refractive index distribution of optical fiber is designed to produce a waveguide dispersion which is comparable to material dispersion, so that the dispersion of the material and the dispersion of the waveguide are added, and the 0 dispersion wavelength of the DSF is moved to the vicinity of 1550nm. The 1550nm wavelength is the most widely used wavelength in the current communication network. In the submarine optical cable transmission system, the dispersion management is composed of two kinds

network extension applications have different transmission bandwidth requirements and quality of service requirements between storage networks. The following illustration shows their relationship. These transport bandwidth and quality of service requirements determine the required storage network expansion technology. The choice of storage network extension technology At present, storage network expansion technology can be broadly divided into four categories: 1 traditional channel Exten

is the time it takes to find a route in a forwarding publication. When a packet is received, the input port looks for the destination of the packet in the forwarding address to determine its destination port, which increases the cost of routing lookups when the packet is shorter or when the package is destined for many destination ports. Therefore, putting some of the frequently accessed destination ports into the cache can improve the efficiency of routing lookups. Both the input buffer and th

There is such a migration of large files operation and maintenance scenario : For example, because the existing Web server configuration is not enough, you need to do a site migration (is to migrate to another high-configuration server with), the site directory has a large amount of small files, about 100G , picture files are mostly. It takes a few days to visually copy the past. So the question is, how do you migrate your website data in this situati

First you'll think of the DD command.But1, if the small hard drive is OK, the big hard drive on t is not high efficiency;2, moreover, DD is a hardware-level copy, the front of the MBR will also be restored to another disk, if the source hard disk is 100G, the target disk is 200G, and will have problems, 200G hard disk due to be overwritten by the write 100G hard disk MBR caused only available

With a new computer, ready to install a dual system, Windows used to play games, Linux to write code. Dedicated to buy two 1T hard drives, want to use to build RAID0, using parallel I/O to improve the performance of the computer. Select the motherboard when selected to support the raid of the motherboard, MSI B85-g43 Gaming, can use MSI super RAID technology, but bought after found that the driver of this thing is EXE program, OH, the motherboard support is only a pseudo raid, can only be used

servers, switches and active devices, integrated wiring provides the highest return on investment (ROI), the integrated wiring in its life cycle (10-15 years) to support at least 2~3 generation of network switching equipment upgrades, 3~5 PC hardware upgrades. Moreover, as an important part of the physical infrastructure of data center, the integrated cabling plays an irreplaceable role in the reliable operation of the data center. Three key words for data center cabling Small investment, big

Old rule: In the opening remarks, I started to use mysqldump to back up 100G + databases, coupled with the busy server, and the backup speed is like a snail bait, so I am looking for a more efficient backup method. The Internet says that xtrabackup is more suitable for backing up large databases, and the backup efficiency is also high. Just try it once. The result is obviously faster than mysqldump backup and recovery. Old rule: In the opening remarks

the separation of more than 110G of the idle area (100G to install linux,10g to store the installation image)2. Then use Diskgenius to separate the 10G space (FAT32 format) as the partition where the installation files are stored. //(honkly: God horse! You don't use Diskgenius, please do it yourself Baidu tutorial )And then we get the installation files.extract the images and Isolinux folders in the DVD1 to the new partition you created above, and th

OS to check and operate. The following is a simple usage: 1, create DG SQL> CREATE DISKGROUP ACFSDG EXTERNAL REDUNDANCY DISK 'ORCL:ASMDISK8' SIZE 4157 M DISK 'ORCL:ASMDISK9' SIZE 4157 MATTRIBUTE 'compatible.asm' = '11.2', 'compatible.advm' = '11.2'; 2. Modify the version. Sometimes, although the database installation version is 11.2, some parameter versions are not. Check whether alter diskgroup FRA set attribute 'COMPATIBLE.ASM'='11.2';alter diskgroup FRA set attribute 'compatible.advm'='11

> delete expired archivelog all;RMAN> DELETE NOPROMPT ARCHIVELOG ALL COMPLETED BEFORE 'SYSDATE-7' ; You can also use the following statement to delete the archived logs seven days ago. RMAN> DELETE NOPROMPT ARCHIVELOG UNTIL TIME 'SYSDATE-7' ; Note: (it is recommended that you adjust the archiving path or the size of the flashing area after you delete the archive) Solution 2: adjust the size of the flash back area SQL> alter system set db_recovery_file_dest_size =

for these applications than 40g. The formation of several newest Ethernet bandwidth technologies is not to set a new high speed, but more to push such network protocols into nearby markets, especially the data center market. The following describes the specific causes by introducing 25G, 50G, and 100G respectively. 25G The official draft IEEE 802.3 standard for 25G Ethernet will be finalized in 2016 (see figure 1), primarily for cloud data center ser

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Guangdong Foshan Shunde Telecom IDC RoomEnterprise qq:2880269157 Tel: 15807649154Guangdong Foshan Shunde Telecom IDC Room A total of 100G bandwidth directly access chinanet National backbone network, 100G high bandwidth to ensure the network link reliability, patency. HuaweiNE5000 high-end router as the backbone export router of Shunde metropolitan area Network, using the high-performance Huawei S9306 switc

Mount Error: "/DEV/VDA1 is apparently on use by the system;"Yun ZhengjieCopyright Notice: Original works, declined reprint! Otherwise, the legal liability will be investigated.The countdown to the home is still a day, tomorrow noon the train will return to their hometown, think it is quite happy. Estimated that many people have been on the road to the spring festival, such as my small operation is still in the post, this no, just less than 2 days, the project manager gave me a call, said a few d

Oracle /boot 100-200M swap16g 1 time times of memory /100g /data The data disk is separated from the system disk, which facilitates maintenance of the problem and keeps the data intact. Depending on the data and performance requirements The main library can take RAID10/RAID5, from which the library can use RAID0 to improve performance (in the case of read and write separations. ） style= "line-heigh