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= =
: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
physical technology, this layer is widely deployed Ethernet, the other is POS, DWDM and so on.3, SFC monitoring aspects of OAMSFC's operations are primarily at the service level, and are based on this to define the SFC's OAM framework, and the following are some aspects that SFC must be able to monitor:1> Service functionService functions can be divided into SFC-aware and SFC-aware, an SFC-aware service function is able to parse an SFC packet with a service function forwarding component and a s
-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
Description
This document describes the message content filtering configuration for all fortigate devices. FortiGate can identify and filter message content. All mail filtering functions need to send and receive mail using mail client software (such as Microsoft Outlook,outlook express,foxmail).
Environment Introduction:
This article uses FORTIGATE110C to do the demo. The system version supported in this
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
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
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
1. Introduction to SSL VPN features
1. 1 SSL VPN Feature introduction
The FortiGate SSL VPN feature uses SSL and proxy technology to enable authorized users to secure reliable Web clients, server-side applications, or other file resource sharing services. FortiGate SSL VPN works only under NAT mode, and transparent mode does not support SSL VPN functionality. FortiGat
Description
This document describes the Web content filtering configuration for all fortigate devices. FortiGate can identify and filter Web pages that contain certain words. Web content filtering is one of the most effective ways to restrict a user's access to a particular type of Web site. This document illustrates the specific use of this feature by blocking the stock page. Web pages that block other co
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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