to broadcast all ports except the source port, usually the switch chip can also be configured as discard, CPU and other actions.
6. the layer-2 multicast protocol mainly includes IGMP and so on. The principle can be referenced in many places. Currently, there are three major versions. The relationship between the MAC and IP addresses of
Tags: instance blank color 5.0 Ted Add dot1q message htmlTest topologyEnvironment: DHCP server and client are in different network segmentsConfiguration of DHCP serverNo IP routing IP dhcp pool vlan27 172.28.27.0 255.255.255.0 172.28.27.254 172.28.28.15 172.28.28.16 172.28.28.254 configuration of the L3-switchinterface Vlan27 IP DHCP relay information trusted172.28.27.254 255.255.255.0 IP helper-address 172.28.28.253 Access Switch configurati
ORM framework under Java is based on the data mapper model, there is no active recorder pattern in Ruby on rails. So, or the desire to press down, the data object is purely a database carrier, and the access to the business logic and the operation of the integration into the manager class.
2.Manager class
My manager class is a combination of DAO classes and service classes in Appfuse because:
2.1 Don't want to use pure DAO
The DAO used to be tran
TRILL (Transparent Interconnection of lots of links, multi-link Transparent Interconnection) is a standard developed by IETF to implement layer-2 extension of data centers. Currently, some protocols have been standardized, such as RFC6325, 6326,6327 and so on. The core idea of this Protocol is to introduce mature layer-3 routing control algorithms into
Layer 2 multicast configuration case requirements
1. Three S3600-SI and a S3600-EI composed of two layer multicast network, SwtichA selected S3600-EI, SwitchB, SwitchC, SwitchD selected S3600-SI;
2. multiple Multicast sources can be connected to any of the four S3600 Series Products, and the receiving end can only be c
Tags: sharepointIn this section we continue to configure the DB layer, such as the Red Place.650) this.width=650; "title=" clip_image002 "style=" border-right-width:0px;background-image:none; border-bottom-width:0px;padding-top:0px;padding-left:0px;margin:0px;padding-right:0px;border-top-width:0px; " Border= "0" alt= "clip_image002" src= "Http://s3.51cto.com/wyfs02/M00/6A/A7/wKiom1UrhRnx8NN0AAEsK0kFnfM368.jpg" Width= "557" height= "455"/>
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