sfp ont

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Basic knowledge of Ethernet switch stack and cascade (1)

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

Some cisco switch modules

Some cisco switch modules organize the TwinGig Converter Module of the Catalyst 3750-E Series Switch: www.2cto.com TwinGig SFP converter can convert the 10 thousand M Ethernet X2 interface into two Gigabit Ethernet Small pluggable (SFP) ports. XENPAK uplink modules of Catalyst 3750G series switches: common optical modules of Ethernet switches include SFP, GBIC, X

Mnesia Study Notes (2)

}}. {Employee, 117716, "fedoriw Anna", 1, female, 99143, {221,031 }}. {Employee, 115018, "Mattsson Hakan", 3, male, 99251, {203,348 }}. Dept {Dept, 'B/SF', "Open telecom platform "}. {Dept, 'B/sfp', "OTP-Product Development "}. {Dept, 'B/sfr', "Computer Science Laboratory "}. Projects % Projects {Project, Erlang, 1 }. {Project, OTP, 2 }. {Project, beam, 3 }. {Project, mnesia, 5 }. {Project, Wolf, 6 }. {Project, documentation, 7 }. {Project, WWW, 8 }.

270-vc709e Enhanced Xilinx Vertex-7 FPGA V7 xc7vx690t PCIeX8 interface card based on FMC interface

vc709e Enhanced Xilinx Vertex-7 FPGA V7 xc7vx690t PCIeX8 interface card based on FMC interface first, the Board of Cards overviewBased on Xilinx's FPGA xc7vx690t-ffg1761i chip, the board supports FMC connectors with PCIeX8, 64bit DDR3 capacity 2GBYTE,HPC, Board supports a variety of interface inputs, and software supports Windows.second, functional and technical indicators:1, Standard PCI-E interface, support PCI-E 8x, support PCI-E 3.0.2, the standard FMC-HPC interface, the Vadj le

Brocade Fibre Switch Price after-sale maintenance

: 408gbit/sec:24 Port x8.5 gbit/sec ( line rate ) x2 ( full duplex ). maximum fabric delay : 8 gbit/sec rate with no contention, pass-through routing for NanoMaximum frame : 2112 bytes Net load. frame buffering : You can dynamically allocate a frame of up to 484 frames per port . service levels : Class2,Class 3,andclass F ( inter-switch frames ). Port type : Fl_port,f_port,m_port ( Mirror Port ) and E_port; self-discovery based on switch type (U_port); Optional port type control in Brocade Acce

Cisco switch Naming conventions

switch is a gigabit switch (all interfaces are gigabit)TT: Indicates that the gigabit on-connection port of the switch is base-t (i.e.: RJ45 interface)TC: Indicates that the switch gigabit on the port is dual-use, directly with the BASE-T, you can add modules on it.TS: Indicates that the 37 switch also has a gigabit expansion slot.T: Indicates that the 37 switch does not have a gigabit expansion slot.E: Indicates that the switch is an enhanced three layer; S: Indicates that it is a standard thr

Cisco mds9222i Fibre Switch most commonly used debug commands

Cisco mds9222i Fibre Switch most commonly used debug commands1. Check the switch portShow interface [Interface-range]View specified port run status, WWN information, configuration parameters, and packet statistics.Demonstration:mds9222i-1# Show Interface FC1/1FC1/1 is trunking-port FC1/1 operating normally, is a TE portHardware is Fibre Channel, SFP was short wave laser w/o OFC (SN)-Port, SFP hardware infor

Linux Kernel Learning-process

|+------------------+ Memory high end When a function call occurs in a program, the computer does the following: First, the parameters are pressed into the stack;The contents of the Save instruction Register (IP) are returned address (RET); The third is the base address that is sent to the stack(FP), then copy the current stack pointer (SP) to the FP as the new base address, and finally the localAmount of space, the SP minus the appropriate value. Take the following procedure as an example:

What is FTTH

of optical line terminals (OLT), Optical Network Unit (ONU)/Optical Network terminal (ONT) and optical distribution network (ODN), the so-called "passive", refers to all ODN by passive optical splitter and optical fiber and other passive optical components, excluding any active nodes. The PON technology uses a point to a multi point topology, and the downlink light signal emitted by Olt is broadcast through a passive optical splitter to each onu/

& Quot; HK & quot; create a QQ screen and a hk qq Screen

)]2 public static extern void keybd_event(Keys bVk, byte bScan, uint dwFlags, uint dwExtraInfo); Next we need to start using him. 1 int ont = 0; 2 Action a = new Action (async delegate 3 {4 while (true) 5 {6 if (. text = "start") // you can change the Condition 7 break to be stopped here; 8 System. windows. clipboard. setText (tx. text); 9 if (on. isChecked = true tw. isChecked = false) 10 {// use the Enter method 11 keybd_event (Keys. contro

Getting Started with Linux 6 multipath and raid

Some knowledge about storageAccording to the different transmission protocols, the network card can be divided into three kinds, one is the Ethernet card, the second is the FC network card, the third is the iSCSI network card. Ethernet Card: The Scientific name Ethernet Adapter, the transmission protocol for the IP protocol, generally via fiber optic cable or twisted pair with Ethernet switch connection. The interface types are divided into optical and electrical ports. Optical ports ar

The difference between a fibre optic network card and an HBA card

, thus forming a network of hardware devices. So, the fiber-optic network card is the name in the end is the fiber port HBA card? In fact, the fiber-optic network card that you often refer to is the HBA card in the Fibre Channel networks. Because of the different transmission protocol, the network card can be divided into three kinds, one is Ethernet cards, the other is FC network card, the third is iSCSI network card. • Ethernet Card: Scientific name Ethernet Adapter, transport protocol fo

Ethernet switch Stack

The maximum rate of Ethernet switch stack is faster, Which is multiple times faster than the port rate of the switch. Not all switches support Ethernet switch stack, 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 a vswitch: Ethernet switch stack and cascade.

A tool that can find all Chinese characters in the source code

'spilt' => '----------------------------------------------------',");Fclose ($ lf );$ Lf = fopen ($ langfile, 'AB ');$ Ptag = '\\';Findfile ($ sf );Fwrite ($ lf, "\ r \ n); \ r \ n?> ");Fclose ($ lf );Function findfile ($ sf ){Global $ ptag, $ logname, $ filter, $ lf;$ Log = fopen ($ logname, 'AB ');Global $ remark;If (is_dir ($ sf )){If ($ dh = opendir ($ sf )){While ($ file = readdir ($ dh ))! = False ){If ($ file = '.' | $ file = '..'){Continue;} Elseif (filetype ($ sf. $ file) = 'dir '){Fin

A tool_php instance that can find all Chinese characters in the source code

');Fclose ($ log );$ Lf = fopen ($ langfile, 'WB ');Fwrite ($ lf, "\ r \ n \ t 'spilt' => '----------------------------------------------------',");Fclose ($ lf );$ Lf = fopen ($ langfile, 'AB ');$ Ptag = '\\';Findfile ($ sf );Fwrite ($ lf, "\ r \ n); \ r \ n?> ");Fclose ($ lf );Function findfile ($ sf ){Global $ ptag, $ logname, $ filter, $ lf;$ Log = fopen ($ logname, 'AB ');Global $ remark;If (is_dir ($ sf )){If ($ dh = opendir ($ sf )){While ($ file = readdir ($ dh ))! = False ){If ($ file

--- Prototype implementation of overflow implanted Trojan Horse (backdoor) Author: flashsky (original)

is damaged again.Add ESP, [esp] // use [esp] to reference K to implement ESP + k to calculate the true ESP ValueSubesp, 4 // 4 bytes in advance, that is, the retaddr location. Use ret to returnRET} 5. Demonstrate remote scoket reuse shellcode overflow Test Service 4. Analysis1. Review Win2k's system file integrity protection mechanism (SFP)Our main objective of webshells and Trojans is to modify and run privileged services and system files. However,

A _php instance of a tool that can find all the Chinese in the source code

\n\r\n\t ' spilt ' => '----------------------------------------------------'"); Fclose ($LF); $LF = fopen ($langfile, ' ab '); $ptag = ' \ n '; FindFile ($SF); Fwrite ($LF, "\ r \ n);\r\n\r\n?>"); Fclose ($LF); function FindFile ($SF) { Global $ptag, $logname, $filter, $LF; $log = fopen ($logname, ' ab '); Global $remark; if (Is_dir ($SF)) { if ($dh = Opendir ($SF)) { while (($file = Readdir ($DH))!== false) { if ($file = = '. ' | | $file = = ' ... ') { Continue } elsei

Bzoj_1622_[usaco2008_open]_word_power_ Name of energy _ (character match _ violence)

] DescriptionJohn wanted to calculate the energy of his N (1≤n≤1000) cow's name. Each cow's name is made up of no more than 1000 characters, and no name is an empty string, and John has an "energy strings table" with a string of M (1≤m≤100) representing energy. Each string consists of no more than 30 fonts, and there is no empty string. How many energy strings a cow's name contains, and how much energy this name has. The so-called "implication" means that all the characters of an energy str

1622: [Usaco2008 Open]word Power name Energy

of n rows, an integer per line, followed by the energy of a name. Sample Input5 3BessieJonathanMontgomeryAliciaAngolaSeNgoOntINPUT DETAILS:There is 5 cows, and their names is "Bessie", "Jonathan","Montgomery", "Alicia", and "Angola". The 3 good strings is "se","NGo", and "Ont".Sample Output11201OUTPUT DETAILS:"Bessie" contains "se", "Jonathan" contains "Ont", "Montgomery" containsBoth "NGo" and "

H3C switch naming rules: interface naming and performance naming rules

that there is no upstream interface; this bit is not allowed by the new product)G, indicating the upstream GBIC interface;P indicates the upstream SFP interface;T, indicating the upstream RJ45 interface;V indicates the upstream VDSL interface;W indicates that the WAN interface can be configured on the uplink;C, indicating that the upstream interface is optional;M, indicating that the uplink interface is a Multimode Optical port;S indicates that the u

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