-2014 by Cisco SyStems, inc.compiled Thu 27-feb-14 14:53 by niduttaboard type:0x100401cpu Board = rev:0x3========= FPGA ver:01. 0f cbc:16.72dti programmed with latest Imagetimex programmed with latest Imagemlan init done:ready to connect to th E networkbcm5482phyinit (): Port 0--SFP not Presentbcm5482phyinit (): Port 1--and SFP not Presentset_chassis_typ e:chassis_type=0xef0400 found=trueasr9001e (p40x0 PPC
The solution for handling 300 or less Ge Fiber switches in Internet cafes is analyzed. The solution for Internet cafes with 150 computers is different from that for Internet cafes with 200 computers. The solution for medium-scale Internet cafes is provided below. Internet cafe owners can check their seats and find their own methods.
About 150 Internet cafes
The network center uses the RHS4616GMS fully-managed Gigabit Optical Fiber switch. It provides 8 Gigabit
:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:1000RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)Em3 Link encap:ethernet HWaddr ec:f4:bb:d0:0b:64Up broadcast multicast mtu:1500 metric:1RX packets:0 errors:0 dropped:0 overruns:0 frame:0TX packets:0 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:1000RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)memory:dbe80000-dbf0000003. Check the driver required for the network cardUse the Ethtool command to view the NIC driver information since the spec
, but still do not know the specific network card driver model, at this time can be queried by the following command:# Lspci-nn | grep "Eth "
01:00.0 Ethernet Controller [0200]: Intel Corporation 82599EB 10-gigabit sfi/sfp+ Network Connection [8086:10FB] (rev.) 01:00.1 Ethernet Controller [0200]: Intel Corporation 82599EB 10-gigabit sfi/sfp+ netwo RK Connection [8086:10FB] (rev.) 03:00.0
certain share of the market at a low price. However, due to the low network transmission rate of the 10 Mbps ISA plug-in Nic and occupying a large amount of CPU resources, only applicable to LAN with low speed requirements. Therefore, we recommend that you use a 100 Mbps PCI plug-in or a 10 Mbps/Mbps adaptive Nic, Which is inexpensive and can be adapted to a large number of users, an application environment that transfers large amounts of data online and requires multimedia information.
When se
local data reads and writes, P2P, or even Intranet DoS .... Is it still unable to explain the bottleneck affecting the performance of Internet cafes?
About 150 Optical Fiber Switches
1. The network center uses the RHS4616GMS full-gigabit managed optical fiber switch. It provides 8 Gigabit SFP Optical Fiber ports, 8 independent 10/100/1000Base-T ports, and 48 Gbps backboard bandwidth, it can fully meet the network performance requirements of the entir
With 500 computers, the Gigabit Optical Fiber switch solution is required. Internet cafes need to support port mirroring, port aggregation, QOS, and other functions of the Gigabit Optical Fiber switch, to meet different network application requirements. Internet cafes with a large number of computers should also have other solutions.
300-about 500 Internet cafes
The network center uses two RHS4624GMS fully Gigabit managed Ge Optical Fiber switches for 10 Gigabit cascade. It can provide 32 Gigabi
managed Internet cafe optical fiber switch. It provides 8 Gigabit SFP Optical Fiber ports, 8 independent 10/100/1000Base-T ports, and 48 Gbps backboard bandwidth, it can fully meet the network performance requirements of the entire Internet cafe. It also supports ARP security, port VLAN, and 802.1 QVLAN, Port Mirroring, port aggregation, QOS, and other functions to meet different network application requirements.
2. Eight
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= =
A lan is to connect individual computers or terminals using networks to exchange information and share resources according to certain protocols. Commonly used network cables include twisted pair wires, coaxial cables, and optical fiber cables. Twisted Pair wires can be divided into shielded twisted pair wires (STP) and unshielded twisted pair wires (UTP) based on whether they are added with the screen layer of a wire mesh ). Most local networks use unshielded twisted pair wires (UTP-unshielded t
, 100 pairs, 300 pairs, 900 pairs of wall mounted types, and from the main distribution frame between the main equipment to the distribution frame between each distribution line, no matter the connection trunk or horizontal cable, all use this distribution frame. the advantage of the 110 fish bone distribution frame is its small size, high density, and low price. It is mainly used together with the 25/50/100 pairs of large logarithm cables. Its disadvantage is that it is troublesome to connect t
products of the information panel will also provide a square dark box) 2. Super Five class 4 pair shielded twisted pair cable In such a home environment, a variety of power lines criss-cross, microwave ovens and other electrical appliances work will also have electromagnetic interference, the summer thunder and lightning weather will often patronize such a single-family villa. Therefore, we choose to have the electromagnetic protection of super five type shielded twisted pair. (Figure 1) 3. Su
Program to read the content of the file and output it to the screen in reverse order # include # Include # Include # Define n 5000
Void main (){File * SFP;Int I;Char Buf [N];If (SFP = fopen ("C: \ datafile.txt", "R") = NULL){Printf ("source file cannot be opened! \ N ");Exit (1 );}I = 0;While (! Feof (SFP )){Buf [I ++] = fgetc (
the SFP pointer to the User-Defined signal processing function:
Void (* SFP) (INT );
The SFP type can be obtained by removing the SFP declared above, namely void (*) (INT ). In addition, the return value of the signal function is a pointer to the User-Defined signal processing function before the call
have previously defined a pointer SFP that points to a user-defined signal handler function:
void (*SFP) (int);
The type of SFP can be obtained by removing the SFP from the above declaration, Void (*) (int). In addition, the return value of the signal function is a pointer to the user-define
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
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