How much does it cost to open SF? What needs to be prepared? What game should I start to open SF? QQ125 927 5574Want to open SF do not know how what game?The game SF does not have the unified price, with our ordinary life any kind of thing in the market relationship is the same, SF
Java converts a JSON string to an object class object based on net. sf. json and jsonnet. sf. json.
Java converts a JSON string to an object class Object
@ SuppressWarnings ("unchecked") public static
Label: PIM-Sm Multicast Route pi pim-DM Multicast Route IGMP MRT
PIM-DM and PIM-SM are two different modes in multicast routing ASM (any source multicast. Compared with the multicast registration mechanism of PIM-SM, the diffusion mechanism of
Business Architecture
The PIM business's networking structure is based on a combination of the National PIM platform and the province-built PIM platform. The networking structure is shown in the following figure:
Figure A-3 the PIM Business Network Diagram
Among them, the national centralized
A few days ago, I heard from my friends that I was talking about PIM on mobile. This is a cutting-edge technology. I suddenly remembered that I used to see an article on Sun's website about Pim, so I will give a rough introduction to it today.
Pim refers to personal Infomation Management (personal information management), which is mainly used for important user i
:
Router (config) # ip muticast-routing
PIM on the startup interface:
Dalllasr1> (config-if) # ip pim {dense-mode | sparse-dense-mode}
Start the PIM in dense mode:
router# ip multicast-routing
router# interface type number
router# ip pim sparse-dense-mode
Verify the
PIM can use the unicast route table established by various unicast routing protocols to perform the RPF check function, instead of maintaining a separate Multicast Route table for multicast forwarding, it uses the RPF mechanism to forward multicast packets. When a multicast packet arrives at a local device, it first performs the RPF check: If the RPF check succeeds, create a route table entry for multicast to forward multicast packets. If the RPF chec
Do you know about the concept of the Optional package-PIM in j2s-pa-ha-ha-ha-ha-ha-sha1? Here, I will share with you that the PIM OP defines a series of APIs and provides methods and channels to access these important data. It is necessary to first talk about What OP is, OP means optionalpackage (Optional package), and it does not provide a complete running environment such as MIDP.
Introduction to
In the previous sections, we talked about the BlackBerry Application Developer guide Mail API and the BlackBerry Application Developer Guide using controlled APIs. This article will introduce BlackBerry's pim api to you, java Personal Information Manager (PIM) API (javax. microedition. pim) and BlackBerry PDAP (Personal Digital Assistant Profile) API (net. rim. b
PIM is the abbreviation of Protocol Independent Multicast (protocol-independent multicast), which means that it can provide routing for IP multicast by using a unicast routing table generated by static routes or any unicast routing protocol (including RIP, OSPF, Is-is, BGP, etc.). Multicast routing has nothing to do with unicast routing protocol, so long as it can generate the corresponding multicast routing table entry through unicast routing protoco
PIM can complete the RPF checking function by using the unicast routing table established by various unicast routing protocols. Instead of maintaining a separate multicast routing table to implement multicast forwarding, it realizes the forwarding of the group broadcast text with the help of RPF mechanism, and when the group broadcast arrives at the local equipment, it RPF check first: If RPF check passes, The corresponding Multicast routing table ent
PIM-DM Basics
PIM-DM uses five RIMv2 messages
Hello
Join/Prune (Add/CUT)
Graft grafting)
Graft-ACK (OK)
Assert (Declaration)
The PIMv2 router uses the Hello message to discover the neighbor, when the PIMv2 router PIM-SM or PIM-DM) is active, will periodically send the Hello Message on each interface configured
The PIM-DM protocol only needs to receive CACHE-MISS messages from the kernel.
Second, the SPT creation process
1. The Linux kernel protocol stack receives a multicast source S group broadcast and checks for the presence of the multicast item in the MFC table entry, and if not, the kernel generates an application-layer program (such as PIM-DM) on the CACHE-MISS message to receive the IGMP management messa
PIM SM + IGMP snooping suitability Test (ii) Introduction to TTL issuesThe two questions and answers in the previous section are based on theoretical analysis and experimental validation, and this section describes the problems encountered in experiments and experiments.Test topology
Figure 1
Experiment DescriptionBefore doing experiments to verify the technical problems, first of all to clarify the purpose of the experiment, then detailed
PIM SM + IGMP snooping suitability test test topology
Figure 1
BootstrapThe BOOTSTRAP protocol is used to designate and announce the RP, the BOOTSTRAP protocol ensures that the entire network chooses a unique BSR (boot router) through Bootstrap messages, BSR collects the RP information in the network and floods all PIM routers in the PIM domain; C-RP
Personal Information Management (PIM) in mobile environments
As new devices continue to come on the market, it is an inevitable requirement to provide address book, Calendar, and Task List on mobile devices. J2ME applications also need access to this data. Optional packet JSR Personal information Management (PIM) provides this functionality.
Not only does it allow access to local personal information that
, declaration, tree structure
RPF: Based on unicast routing work, if S is entered from the left side of the 9, then if the 9 has a route to s on the road by the entry and exports to the above interface, then it has the condition called RPF; RPF election: small ad; small metric; Large interface Address
Disclaimer: If the route of S in the MA network can be reached from two places to the last hop interface, use, such as: If 7 for the last hop,5,7,10 between a switch, then you can use, election: ib
The Visual Mobile Designer (VMD) is the graphical interface in the NetBeans mobility package, allowing you to design mobile applications using drag-and-drop components. VMD allows you to define application processes and design GUIs using components provided by mobility packages or components that you design yourself. VMD contains many standard User Interface (UI) components that you can use to create applications such as Lists, Alerts, Forms, and Images. It also includes custom components that c
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