vvx 1500

Computer network summary 1. p110 indicates the MAC frame format in V2 format. The data field (that is, IP packet) length ranges from 46 bytes to 1500 bytes, which is defined for Ethernet, "1500 bytes" is also called the Ethernet MTU (maximum transmission unit, that is, Ethernet limits the maximum length of IP datagram to 1500 bytes ). P185 indicates the IP datag

= 1472 time = 2 ms TTL = 255 ...... Ping-F-l 1473 10.1.70.1 Packet needs tobe fragmented but DF set. Packet needs tobe fragmented but DF set. ...... This indicates that the maximum transmission unit MTU from the client machine to 10.1.70.1 is 1472 + 28 (the length of the packet header encapsulated in the Ethernet) = 1500, and all packets larger than 1500 need to be cut. The default MTU in Ethernet is

About the size of UDP data transmitted over the Internet, Post found on the Forum Http://bbs.csdn.net/topics/20299532#new_post Part of the post posted on Delphi monopoly. For details, see Http://www.delphibbs.com/delphibbs/dispq.asp? Lid = 726166 Wheel learning Note 1: UDP programming in Ethernet 1. During UDP programming, the most common question is how many bytes are sent at a time?Of course, there is no unique answer. The answer to this question varies with the requirements of different syste

Recently in because of learning remoting, purely just to understand, found that remoting is really good things. We usually have three ways to use remoting, one is First type: Publishing a public objectExposed objects are created on-premisesSecond type: Remote creation of a public object (SAO)Object creation in the client requestThird type: Remote creation of a private object (CAO)object is created on the host, the client references the object on the server I do not have a good understanding of

The maximum size of a UDP package can be larger. 1. When programming with UDP, we are most likely to think of the problem of how many bytes are sent at a time? Of course, there is no unique answer. The answer is different from the requirements of different systems. Here I only analyze the situation of sending chat messages like ICQ, in other cases, you may also get some help: First, we know that TCP/IP is generally considered a layer-4 protocol system, including the link layer, network layer, tr

~ 1500 bytes. · FCS-this field contains a 32-bit Cyclic Redundancy Check (Cyclic Redundancy Check, CRC) value to verify damaged frames. The initial Ethernet II frame format has some drawbacks. To allow conflict detection, 10 Mbits/s Ethernet requires the minimum group size to 64 bytes. This means that if the frame length does not reach the standard, 0 must be used to fill the short frame. Therefore, the upper-layer protocol must contain a "length" f

analyzing the data, we found that:The data forwarded by the customer on site is far greater than the data during local testing. Analyze the messages sent by the MonitorServer and the messages received by monitord as follows: 1 // MonitorServer sends Code 2 3 esmonitor_assist_t m_monitord_prms; 4 5... 6 7 tmp = sock. createSock (pConf-> m_monitordServerList [I]. c_str (), ES_MONITOR_PORT, IPPROTO_TCP, CLIENT); 8 9... 10 11 if (sock. sendData (_ int8 *) m_monitord_prms, sizeof (m_monitord_prms)

Record a Multicast DNS (mdns) problem-(ifconfig in linux), mdnsifconfig Preface:Recently, the problem of mdns query has been fixed. The problem can be summarized into three parts, which are basic issues: 1. Gateway ifconfig query address 2. encoding of multiple programs occupying one port at the same time 3. mdns protocol and source code Mdns is a protocol used for LAN discovery. For the linux system mounted by the gateway, you must first determine the address used for communication and descri

: 2.0.50727.1433// File name: default. aspx// Creator: Shao long// Creation Time: 16:29:49// Program version: Version 1.0// Function Description: aspnetajaxpager demo// Modify record:// ================================================ ======================================-->Backcolor = "Transparent" bordercolor = "red" borderwidth = "0px" descriptiontext = "in use:" gotobuttonvalue = "go"Cssclass = "Navi" isgotoselectvisible = "false" isgototextboxvisible = "false" leftpagesize = "0" rightpages

Article Source: http://blog.163.com/yuyi_vc/blog/static/170371753201152901727665/ During UDP programming, the most common question is how many bytes are sent at a time? Of course, there is no unique answer. The answer to this question varies with systems and requirements, here, I will only analyze the situation of sending chat messages like ICQ. For other cases, you may also get some help: First, we know that TCP/IP is generally considered as a layer-4 protocol system, including the link layer,

I recently learned about Remoting and found that Remoting is really a good thing. We usually have three methods to use remoting, one is First: Publishing a public objectThe public object is created locally.Type 2: Remote creation of a public object (SAO)Object created in client requestThird: Remote creation of a private object (CAO)The object is created on the HOST, and the client references the object on the server. I didn't quite understand the essential differences between the three. The thre

172.17.0.3 icmp_seq = 5 Destination Host UnreachableFrom 172.17.0.3 icmp_seq = 6 Destination Host UnreachableFrom 172.17.0.3 icmp_seq = 8 Destination Host UnreachableFrom 172.17.0.3 icmp_seq = 9 Destination Host Unreachable Install docker version:Docker versionReturn value:Client version: 1.7.1Client API version: 1.19Go version (client): go1.4.2Git commit (client): 786b29d/1.7.1OS/Arch (client): linux/amd64Server version: 1.7.1Server API version: 1.19Go version (server): go1.4.2Git commit (serv

with Linux Bridge or Vxlan. Instead, these implementations are compared to ground gas. Before we used the Docker container, we learned that Docker was isolated from the container network implemented by the Linux network namespace. When using Docker, there will be a Docker0 Linux Bridge,brctl show on the physical host or virtual machine to see Docker0 "plugged in" a lot of veth network devices: # ip link show... ...3: docker0: mtu 1500