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1. What is GBIC? GBIC is short for Giga Bitrate Interface Converter. It is an Interface device that converts Gigabit electrical signals into optical signals. GBIC is designed for hot swapping. GBICIs an Interchangeable product that complies with international standards. The gigabit switches designed with GBIC interfaces share a large market share due to flexible exchange.2. What is SFP? SFP is short for sma

1. What is GBIC?? GBIC is short for Giga bitrate interface converter. It is an interface device that converts Gigabit electrical signals into optical signals. GBIC is designed for hot swapping. GBIC is an Interchangeable product that complies with international standards. The gigabit switches designed with GBIC interfaces share a large market share due to flexible exchange. 2. What is SFP?? SFP is sho

1. What is GBIC? GBIC is short for Giga Bitrate Interface Converter. It is an Interface device that converts Gigabit electrical signals into optical signals. GBIC is designed for hot swapping. GBIC is an Interchangeable product that complies with international standards. The gigabit switches designed with GBIC interfaces share a large market share due to flexible exchange. 2. What is SFP? SFP is short for s

What are the advantages of a small pluggable (SFP) port for a Gigabit Ethernet switch? How do I connect the four SFP ports of a d-link DGS 1248 t smart switch? I think the main advantage of the SFP port is the flexibility to connect to the network. The SFP port is a hot-swappable input/output device that can be plugg

The SFP is the abbreviation for the small FORM pluggable and can be easily understood as an upgraded version of the Gbic. The SFP module is half the size of the Gbic module, and can be configured with more than one port number on the same panel. The other features of the SFP module are basic and gbic consistent. Some switch vendors call the

EMM386 Extended Memory Management [Recommended] This command is more complex, in the fifth chapter in the system configuration will be described in detail Lh/loadhigh the program into high-end memory [Applicable occasions] This command is generally used in Autoexec.bat, when some software needs a large amount of basic memory, it will help [Usage] LH [program] To load a program into high memory using thi

these triangles are carried back to camera. Let's talk about the transformation matrix in the two coordinate systems.World transformations are the same in two coordinate systems. As mentioned earlier, the zaxis method is different. It is worth mentioning that projection transformation. In either coordinate system, the projection transformation is the depth information (after normalization) in which zcoordinate is transformed to 0 to 1. The closer it is to 1, the larger the depth is. Therefore,

These days, when HP acquired H3C, it was rare to see 3COM with 3 O-markers. But the problem, a year ago a project bought a 3COM switch 2924-SFP plus switch (PS: pure switch, no readable data). At that time saw a default management IP in the back, so log in to the Web interface configuration can be. Later the project bought H3C S5500 switch, do not have this switch, so idle.Due to the recent equipment is more tense, need to enable, the problem came, bu

How to disable the SFP module on H3C vswitches and other devices? The following warning is displayed: OPTMOD/4/PHONY_MODULE: GigabitEthernet1/0/2: This transceiver is NOT sold by H3C. h3C therefore shall NOT guarantee the normal function of the device or assume the maintenance responsibility thereof! This is a warning when SFP module is used on H3C vswitches, routers, and other devices. It generally means t

EMM386: Extended memory management [Recommended] This command is more complex, in the fifth chapter in the system configuration will be described in detail Lh/loadhigh the program into high-end memory [Applicable occasions] This command is generally used in Autoexec.bat, when some software requires a large amount of basic memory, it will be useful [Usage]LH [Program] To load a program into high-end mem

must be exactly the same as that of the optical cable. Otherwise, the connectivity will fail. In addition, the types of fiber-optic ports connected to each other must be identical, Or both are Multimode Optical Fiber ports or single-mode optical fiber ports. One end is a Multimode Optical Fiber port, while the other end is a single-mode optical fiber port, which cannot be connected together. 3. transmission rate and duplex mode Unlike 1000Base-T, 1000Base-SX, 1000Base-LX/

-----Indicates that the TC represents the normal mouth is baset, there is no uplink mouth.-L LAN Base Image-S Standard Image-E Enhanced Image1u (1RU height)The SFP is an abbreviation for the Small Form-factor pluggable, which can be simply understood as the GBICUpgrade version. The SFP module is less than half the size of the Gbic module and can be configured on the same panel with multipleThe number of por

integrated The ST and SC connectors are commonly used in general networks. The ST head is inserted and rotated for half a week. The disadvantage is that it is easy to break. The SC connector is directly inserted and inserted, which is easy to use. The disadvantage is that the FC connector is usually used in telecom networks, there is a nut screwed to the adapter, the advantage is reliable, dust protection, the disadvantage is that the installation time is a little longer. The MTRJ patch cord co

Cisco-Huawei Optical Module Classification Comparison summary: This article introduces: Cisco GLC-SX-MM,GLC-LH-SM optical Module and other product parameters and pictures, Huawei Optical module model and classification knowledge.Optical Module Classification and introductionFirst, Cisco Manufacturers1. Multimode Optical ModuleModel: GLC-SX-MMDescription: SFP,1000BASE-SX Gigabit module, 850 nm, multimode 550

When the number of ports that a single switch can provide is insufficient to meet the requirements of the network computer, more than two switches must provide the corresponding number of ports, which also involves the connection between switches. Basically, there are two ways to connect vswitches: Stack and cascade. 1. GBIC and SFP 1) GBIC Cisco GBICGigaStack Gigabit Interface Converter) is a common and low-cost Gigabit Ethernet stack module that pro

The Fiber jumper (also known as the optical fiber connector), which is the optical connector to access the optical module, also has many kinds, and can not be mutually used. The SFP module is connected to the LC fibre optic connector, while the GBIC is connected to the SC fiber optic connector. The following is a detailed description of several commonly used optical fiber connectors in Network engineering: ①FC Type fiber jumper: The external streng

, what's more, the installer simply overwrites the system files of the new and old versions (many games and irresponsible applications do this ).What are the consequences of overwriting system files? It is hard to say that if you are lucky enough, you may not have any problems. But in most cases, it is to make your system unstable or crash at some specific time. In this case, Microsoft engineers use the DLL Hell-the Windows system uses the Dynamic Link Library (Dynamic Link Library) to share all

example, in the NTFS file system of win platform, the FAT32 file system does not support ACL. On the Linux platform, common ACL-Supported files love your system, such as EXT2/EXT3/ext4, JFS, and XFS. So, how can we check whether your system supports ACL? You can perform the following operations: [Root @ lh ~] # Tune2fs-l/dev/vda1 | grep optionsDefault mount options: user_xattr acl [root @ lh ~

programs. 5. Refresh the last activity time. 6. generate a new random string, refresh the corresponding part of the session, and send it as a cookie to the client. Because the project I am working on requires high security, I have considered more in this regard, but I know that I must Not completely secure. If anyone finds any vulnerabilities, please let me know. Below is some of my implementation code: Set_session () is called during login. Start_session () is called before each page. Kill_se

is an integer representing a specific signal. We ignore it temporarily. The previously assumed function body defines the sigfunc function. Therefore, the declaration of the sigfunc function can be as follows: Void sigfunc (INT ); Now, if we want to declare a pointer variable pointing to the sigfunc function, we may name it SFP. Therefore, SFP points to the sigfunc function. *