tomtom 1500

[Email protected]:/sys/class/net$ ifconfigENP0S25 Link encap:ethernet HWaddr f0:de:f1:16:a4:98Up 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)Interrupt:20 memory:f2500000-f2520000Lo Link encap:local Loopbackinet addr:127.0.0.1 mask:255.0.0.0Inet6 addr::: 1/128 scope:hostUp LOOPBACK RUNNING mtu:6

+ SMAC source MAC address 48bit = 6 bytes + type domain 2 bytes) 14 bytes and the CRC check at the end of the frame is 4 bytes, so the rest of the places that carry the upper-layer protocol, that is, the maximum data domain can only have bytes, which we call MTU. The UDP packet size should be 1500-IP header (20)-udp header (8) = 1472 (bytes)The TCP packet size should be 1500-IP header (20)-TCP Header (20)

Tax initiation: 3000 SQL codeCreate or replace function tax (v_salary in number) return number isV_expense number;-- Deduction for quick calculation at this level = maximum income at the upper level × (current tax rate-higher tax rate) + deduction for quick calculation at the upper levelV_quick_deduction number: = 0;V_temp number;BeginV_temp: = Vanderbilt salary-3000;If v_temp = 1500 thenV_temp: = v_temp * 0.05;Elsif v_temp>

pppoe session checks the dialing status up mtu, MTU refers to data of two or more layers. Layer 2 Ethernet frames are 18 bytes + 1500 = 1518 customer interface mtu1492. The default value is 1500. The maximum value of PC -- is 1500, data is first exported from dialer. dialer is encapsulated as ppp, and the interface is encapsulated as pppoe. When the data output

The largest data in a TCP packet 2008-03-10 18:54 In Ethernet, the maximum Transmission Unit MTU is 1500 bytes, in one IP packet, the 20 bytes of the IP header are stripped, the maximum data length that can be transmitted is 1480 bytes. In TCP packets, 20 TCP headers are removed, and the maximum data segment that can be transmitted is 1460 bytes. Therefore, when the data exceeds the maximum data length, the data will be fragmented, and

After the xen4.4.2 installation is complete, we observe the following information:DOM0:[[Email protected] ~] #ifconfigEth0 Link encap:ethernet HWaddr 00:0c:29:2e:72:81inet addr:10.43.2.11 bcast:10.43.2.255 mask:255.255.255.0Inet6 ADDR:FE80::20C:29FF:FE2E:7281/64 Scope:linkUp broadcast RUNNING multicast mtu:1500 metric:1RX packets:3882 errors:0 dropped:0 overruns:0 frame:0TX packets:61 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:1000

link set dev eth0.12 up (enable device) Ip link set dev eth0.10 up Ip link set dev eth0.13 up 　　 IV. configure dialing 　　 1. create a dial-up network for the Office: 　　 (1) create a dialing script file:/etc/ppp/dialisp1 　　 #! /Bin/sh 　　 /Usr/sbin/pppd/dev/ttyS0 57600 connect '/usr/sbin/chat-f/etc/ppp/chat95788 'login user 95788 mru 1500 mtu 1500 crtscts file/etc/ ppp/options. pstn_isp1 　　 (2)

eth0.13 up 　　 　　 IV. configure dialing 1. create a cqs dial-up network: 　　 (1) create a dialing script file:/etc/ppp/dialisp1 　　 #! /Bin/sh 　　 /Usr/sbin/pppd/dev/ttyS0 115200 connect '/usr/sbin/chat-f/etc/ppp/chat95788 'login user 95788 mru 1500 mtu 1500 crtscts file/etc/ ppp/options. pstn_isp1 　　 (2) create a session file for dialing:/etc/ppp/chat95788 　　 "" OK ate1v1 OK atdt95788 CONNECT

showBanner () {Toast. makeText (mActivity, "I'm the ShowBannber method", 1500 ). show () ;}@ Overridepublic void showDialog () {Toast. makeText (mActivity, "I'm the ShowDialog method", 1500 ). show () ;}@ Overridepublic void showFullScreen () {Toast. makeText (mActivity, "I'm the ShowFullScreen method", 1500 ). show () ;}@ Overridepublic void showAppWall () {Toa

the original readImgFile. doReadImgFile (file, $ img, $ container, rotateDeg);} // else use canvas to rotate else {RotateDeg = orientation === 6? 90 * Math. PI/180: orientation = 8? -90 * Math. PI/180: orientation = 3? 180 * Math. PI/180: 0; handler. doReadImgFile (file, $ img, $ container, rotateDeg );}});} After knowing the angle, you can use canvas for processing. The following compressed image is described, because canvas is also used for compression. 2. compress the image You can use canva

Link encap:local Loopback inet addr:127.0.0.1 mask:255.0.0.0 inet6 addr:.: 1/128 Scope:host Up LOOPBACK RUNNING mtu:16436 metric:1 RX packets:167 errors:0 dropped:0 overruns:0 frame:0 TX packets:167 errors:0 dropped : 0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:14861 (14.5 KiB) TX bytes:14861 (14.5 KiB)At this point our eth0 network card information will be displayed, we at this time through the IP comman

Reproduced from: http://blog.chinaunix.net/uid-20180960-id-2998594.html, thank the author. When it comes to UDP programming, the easiest question we can think about is how many bytes are sent at a time? Of course, this does not have the only answer, compared to different systems, different requirements, the answer is not the same, here just like the ICQ type of sending chat messages to analyze, for other cases, may also get a little help:First, we know that TCP/IP is often considered a four-lay

:192.168.120.255 mask:255.255.255.0Up broadcast RUNNING multicast mtu:1500 metric:1RX packets:8700857 errors:0 dropped:0 overruns:0 frame:0TX packets:31533 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:1000RX bytes:596390239 (568.7 MiB) TX bytes:2886956 (2.7 MiB)Lo Link encap:local Loopbackinet addr:127.0.0.1 mask:255.0.0.0Up LOOPBACK RUNNING mtu:16436 metric:1RX packets:68 errors:0 dropped:0 overruns:0 frame:0TX packets:68 errors:0 d

interface.The ARP setting specifies whether the NIC supports the ARP protocol.-promisc sets whether the promiscuous mode of the NIC is supported, and if this parameter is selected, the NIC will receive all packets sent to it in the network-allmulti Settings Support multicast mode, if you select this parameter, the NIC will receive all multicast packets in the network-A displays all interface information-S Display summary information (similar to netstat-i)Add to configure the IPV6 address for th

In the UDP programming, we are most likely to think of the problem is how many bytes to send a good? Of course, this does not have the only answer, compared to different systems, different requirements, the answer is not the same, I am here only for Like the ICQ type of sending chat messages to analyze the situation, for other situations, you may also be able to get a little help: First of all, we know that TCP/IP is usually considered to be a four-layer protocol system, including link layer, ne

The PHP timestamp uses the instance code. We will surely encounter this situation: Bank A and Bank B open your account almost simultaneously and see the original 1000 yuan deposit in your account, then both banks want to add 5 to your account. we will certainly encounter this situation: bank A and Bank B open your account almost simultaneously and see the original 1000 yuan deposit in your account. then both banks want to add 500 yuan in deposits to your account. Then, Bank A will change 1000 yu

characteristics of the network, and is responsible for transmitting 0 and 1 electrical signals. 3. Link Layer 3.1 Definition 0 and 1 alone have no meaning. You must specify the interpretation method: How many electric signals are counted in a group? What is the significance of each signal bit? This is the function of "link layer". It is above the "entity layer" and determines the grouping method of 0 and 1. 3.2 Ethernet protocol In the early days, each company had its own electric signal groupi

6506> (enable) show configThis command shows non-default invocations only.Use 'show config all' to show both default and non-default config.........................................................Begin!# ***** NON-DEFAULT CONFIGURATION *****!!# Time: Thu Jan 4 2001, 08:27:22!# Version 5.4 (3) # Software version!Set password $2 $ lnsk $ mgJ84scE. A51hpr0Zbdfv/# encrypted telnet passwordSet enablepass $2 $ RFAC $ BDgIVKdk3gl1RD4. DaNcu. # encrypted enable password!# SystemSet system name 6506 # sy

6506> (enable) show configThis command shows non-default invocations only.Use show config all to show both default and non-default config.........................................................Begin!# ***** NON-DEFAULT CONFIGURATION *****!!# Time: Thu Jan 4 2001, 08:27:22!# Version 5.4 (3) # Software version!Set password $2 $ lnsk $ mgJ84scE. A51hpr0Zbdfv/# encrypted telnet passwordSet enablepass $2 $ RFAC $ BDgIVKdk3gl1RD4. DaNcu. # encrypted enable password!# SystemSet system name 6506 # syst

As shown in the preceding example, we will first introduce the timestamp. The timestamp is a set of random numbers generated based on the current system time. Timestamp is generally used as a basis for determining data uniqueness. Next we will introduce how we can use timestamps. We will surely encounter this situation: Bank A and Bank B open your account almost simultaneously and see the original 1000 yuan deposit in your account, then both banks want to add a deposit of 500 yuan to your accoun