Optical fiber is generally made from Z (SiO2) after special pulling process. It no longer uses electronic signals to transmit data, but uses optical pulse to transmit signals, it features high bandwidth, large transmission capacity, low signal loss, and long transmission distance.
Therefore, the emergence of the Internet cafe Optical Fiber solution will undoubtedly bring a spring breeze to the entire Internet cafe. The development of the Internet cafe industry has gone through countless leaps an
changed according to the actual situation, or use Parameter passed in) the server address is set to 192.168.1.104 Author: kikilizhm#163.com (change # to @)*/#include#include#include#include#includeinch.h>#includestring.h>intMain () {intSFP,NFP;/*define two descriptors*/ structsockaddr_in S_add,c_add; intsin_size; unsigned Shortportnum=0x8888;/*Server Port Usage*/printf ("hello,welcome to my server!\r\n"); SFP= Socket (Af_inet, Sock_stream,0); if(-1=
/************************************* file name: SERVER.CTCP package and unpacking implementation algorithm author: ma hai qq:284358503email: [Email protected]*/#include#include#include#include#includeinch.h>#includestring.h>#include#include#includestring.h>#defineBuf_size 1024*5//#define TCP_PACK_DEBUG 1 intMain () {intnbufuselen=0;//the length used in the buffer intnrevoncelen=0;//the length read at a time intnpacklen=0;//the length of each packet, including the head and two length and
The following picture is taken from the UNIX Network programming Volume One, the framework of this simple C/s programService-side Programs#include #include #include #include #include #include intMain () {intSFP,NFP;/ * Define two descriptors * / structSockaddr_in S_add,c_add;intSin_size;unsigned Shortportnum=0x8888;/ * Use port on server * / printf("Hello,welcome to my server!\r\n"); SFP = socket (af_inet, Sock_stream,0);if(-1= =
with single-mode fiber, because of the low active + passive integrated cost of multimode fiber, it will make multimode fiber have the absolute advantage in the application of data center, and more than 85% of the fiber cabling system in large and medium data center adopts multimode fiber. August 2009, TIA officially approved OM4, a new category Eia/tia492aaad Multimode optical fiber standards for the introduction of multimode fiber in the future a large number of applications to provide a good
. Move unallocated space to/near the directoryThe size of my Add/directory (/DEV/SDA8) is to compress 40GB of space from the NTFS file system such as/dev/sda3, and then move this 40G space step-by-step to the back of/DEV/SDA8.First select/dev/sda3, right-click, select Change Size/move, the interface shown in Figure 6 will appear (Figure 6 is only, not when I am actually operating)In the previous free space filled in 0, after the free space filled in 4
Often meet someone in the QQ group to ask about the product of Huawei's specific model number of the meaning of today's summary of the content to be posted for your reference.
LI (Lite software Image) indicates that the device is a weak feature version.
SI (Standard software Image) indicates that the device is a standard version and contains the underlying features.
EI (Enhanced software Image) indicates that the device is an enhanced version and contains some advanced features.
HI (Hyper softwa
Over the past more than 30 years, Ethernet technology has undergone continuous improvement, and has been widely used in broadband access, metropolitan area Network convergence and core layer. From 10M to 100G, from LAN to metropolitan area network, through the continuous improvement of their own shortcomings, Ethernet technology has become the most widely used network technology.
And since its realization, it has the advantage of cost advantages, simple technology and flexibility of deployment
Cisco switch Product Name Description Catalyst nn xx [-C] [-M] [-A/-EN] NN is the serial number of the switch XX for A fixed configuration switch is the number of ports, for A modular switch, the number of slots C indicates that the fiber-optic interface M indicates that the modular www.2cto.com A and-EN respectively refer to the switch software as the standard board or Enterprise Edition. The WS-C2960-48PST-L structure is as follows: WS-C 2960-48 PST-LWS-C description this product is vswitch 29
1, provide MA5650 MA5626 firmware upgrade 312, and login password hack restore factory service. Oblique optical port old version ma562x, can do 1-23 isolation, 24 allied, 1-24 isolation, GE Optical port on the upper line, 1-24 to do vlan,ge light port tag upstreamStraight plug can do 24-port fool switch, 1-24 isolation, GE Optical port on the upper, 1-24 to do vlan,ge light port tag Uplink ma562x needs to be upgraded to version 308 using optical ports To achieve the
Catalyst NN XX [-c] [-m] [-a/-en]
NN is the serial number of the switchXX is the number of ports for a fixed-configured switch, which is the number of slots for a modular switchC logo indicates a fiber-optic interface withM-representation of modularityA and-en respectively refer to the switch software as either a standard board or an Enterprise edition.
The WS-C2960-48PST-L structure is as follows:
Ws-c 2960-48 Pst-l
Ws-c that this type of product
Release date: 2012-04-10Updated on: 2012-04-28
Affected Systems:HP E5412 zl SwitchHP E5406 zl SwitchHP Management Module 5400 series zl switch J8726ADescription:--------------------------------------------------------------------------------Bugtraq id: 52990Cve id: CVE-2012-0133
HP ProCurve Switch is an enterprise-level network Switch.
HP ProCurve 5400 zl Switches has a security vulnerability in implementation. If a vswitch is connected to a virus-infected flash card, attackers can exploit this
The 3560X module has four options for configuration.1.4 Gigabit SFP C3KX-NM-1G2. Or 20 thousand mb sfp + C3KX-NM-10G3. Or 10 thousand mb sfp +, 2 Gigabit SFP C3KX-NM-10G4. or 2 10Gb-T, RJ45 interface C3KX-NM-10GT
WS-C3560X-48T-SCatalyst 3560X48 Port Data IP Base 1S356XVK9TN-15001SECAT 3560X ios universal no macsec w
GE switches are still commonly used. So I have studied the full performance solution of the mainstream L2 switches with all-optical ports. I would like to share this with you and hope it will be useful to you. Recently, the F-engine S2200F series all-optical ports, 10-Gigabit L2 switches and F-engine S2200G series all-optical ports, which are independently developed by beacon network, were officially introduced to the market, this is an important step in improving the Ethernet switch Product Lin
low address, where the sp pointer executes the last stack address used
Here we introduce the second pointer bp, which is used to represent local variables in the range of this function (this ghost bp is used to indicate the starting address of these local variables. Note that, the starting address does not include sfp and ret)
Bp and sp are based on the following operating mechanisms:
1. The called function first defines the original bp push as
media uplink Port has a two-port Ethernet port and a small pluggable (SFP) Gigabit Ethernet port, one of which is activated when used, but cannot be used at the same time. Network control and bandwidth optimization are achieved through advanced QoS, precise rate limiting, ACL, and multicast services. Network security through multiple authentication methods, data encryption technology, and network access control based on user, port and MAC address sim
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 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
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