Black Box Version 1.0 user manual Network before running STA

Page 24

Fig. 4 Network before running STA

The STA calls for each bridge to be assigned a unique identifier. Typically, this identifier is one of the bridge's Media Access Control (MAC) addresses plus a priority. Each port in every bridge is also assigned a unique (within that bridge) identifier (typically, its own MAC address). Finally, each bridge port is associated with a path cost. The path cost represents the cost of transmitting a unit onto a LAN through that port. In Fig. 4, path costs are noted on the lines emanating from each bridge. Path costs are usually defaulted, but can be assigned manually by network administrators.

The first step in spanning-tree calculation is the selection of the root bridge, which is the bridge with the lowest value bridge identifier. In Fig. 4, the root bridge is Bridge 1. Next, the root port on all other bridges is determined. A bridge root port is the port through which the root bridge can be reached with the least aggregate path cost. This value (i.e. the least aggregate path cost to the root) is called the root path cost.

Finally, designated bridges and their designated ports are determined. A designated bridge is the bridge on each LAN that provides the minimum root path cost. A LAN's designated bridge is the only bridge allowed to forward information units to and from the LAN for which it is the designated bridge. A LAN's designated port is the port that connects it to the designated bridge.

In some cases, two or more bridges can have the same root path cost. For example, in Fig. 4, both Bridges 4 and 5 can reach Bridge 1 (the root bridge) with a path cost of 10. In this case, the bridge identifiers are used again, this time to determine the designated bridges. The priority is given to LAN V of Bridge 4 over LAN V port of Bridge 5.

Using this process, all but one of the bridges directly connected to each LAN are eliminated, thereby removing all loops between two LANs. The STA also eliminates loops involving more than two LANs, while still preserving connectivity. Fig. 5 “Network after running STA” shows the results of implementing the STA to the network shown in Fig. 4. Comparison of these two figures illustrates that the STA placed Bridge 3 and Bridge 5 ports to LAN V into the standby mode.

Version: 1.0

Page. 24 of 95

Page 23 Page 25
Image 24
Page 23 Page 25
Contents MDS921AE-10BT MDS922AE-10BT Ethernet Router / BridgeSpecifications Firmware Loading Description of Interface Cables Version Control Major changes to previous versionIntroduction Version Specification Technologies XDSL technology, backgroundAsymmetric DSL Adsl technology Adsl in briefIsdn DSL technology Line codeNumber of pairs UsageIdsl in brief High bit rate DSL Hdsl technologyStandard Transmission rateHdsl in brief EXTRAns technology EXTRAns in briefMultispeed DSL Mdsl technology Mdsl in briefMultispeed DSL Msdsl technology MSDSL, in briefTransmission medium Straight-line code7 G.shdsl technology 7.1 G.shdsl, in briefLocal area network integration. Access to Internet 1 TCP/IP stack structureLayer Correspondence of TCP/IP layers with the OSI model layers Address assignment in IP networks IP address classesAutomatic assignment of IP addresses MasksBridging of local networks Types of bridgesSimple network Version Network before running STA Routing of networks Routing componentsOptimal path determination Switching Change of packet addressesInternet Access through LANs, NAT Routing algorithms, RIPNAT functioning Static Network Address TranslationDynamic Address Translation Masquerading NAPT, PATInternal IP Port local NAT port 191.167.0.10 1243 61300 Description of the Device BackgroundStructural schematic of MDS92xxx-10BT Operation mode Master/Slave modeConnection at a fixed speed Fixed Mode Connection with an automatic speed regulation Adaptive modeBridge mode Route modeEthernet 10BaseT interface ATM interfaceDescription of LEDs LEDMechanic Design Sub-RackMDS920C-10BT, NG, front panel Mini-Rack XdslMDS922AE-10BT, front panel Stand Alone LEDEquipment Installation Version Programming Guide IntroductionManagement of devices of Sub-Rack type Command structure Management of devices of Mini-Rack and Stand Alone typeCommand tree of bridge mode Command tree of router mode Main menu of the bridge mode Help commandHome command Security password from an unauthorized accessDefault command Lan commandSetip command Show commandList command Manage command Setpass commandPassword setting Password change Password disablementMode command Bridge mode setting modeRouter mode setting mode Ping command Quick command10 R1483 command ANYDelpvc command Pfilter commandSetpvc command Setqos command Setspan command10.6 6 Show command Restart commandSave command Shdsl command Shdsl shdslEnable command Terminal commandAnnex command Fix command Adapt commandStatus command PRE ActivationVer command Main menu of the router mode Default commandDnsrelay command Setdnsip command Ipoa command Delwanip commandSetrip command Setwanip commandDhcpserver command Setdhcp command Pat command Addpatin commandDelpatin command Setpat commandPppoa command Adduser command Chpass commandDeluser command Echo command Setllc commandPppoe command 12 R1483 command 12.4 8.3.12.4 Setwanip command WAN Rtable command AddiprouteDeliproute All Deletes Firmware Loading Firmware loading guideTechnical Specifications Interfaces Monitor interfaceNetwork management interface Network interface Surge safety Protection against dangerous affects10.3 10.3 Climatic conditions 10.4 10.4 Guarantee 10.5 10.5 Physical dimensionsCONNECTORS’ Description Shdsl connectorMonitor connector Ethernet 10BaseT connector Power connector For MDS922AE-10BTDescription of Interface Cables 12.1 «Direct» Ethernet cableCross-over Ethernet cable Delivery SET Typically the delivery set includesGlossary RJ11 RJ45RS232 SplitterTDM Example of Network Configuration RouterVersion Ethernet IP Subnet mask 0.0.0.0 WAN IP Gateway

Version 1.0 specifications

Black Box Version 1.0 represents a significant advancement in the realm of data analytics and artificial intelligence. Designed to streamline processes and enhance decision-making, this platform leverages cutting-edge technologies to deliver insightful solutions across various industries.

One of the main features of Black Box Version 1.0 is its robust data processing capabilities. The platform employs a combination of machine learning algorithms and advanced statistical methods to analyze vast amounts of data in real-time. This allows organizations to gain actionable insights quickly, empowering them to make informed decisions based on accurate information.

Another standout characteristic of Black Box Version 1.0 is its user-friendly interface. The platform is designed to cater to both technical and non-technical users, ensuring that everyone can navigate its functionalities with ease. This accessibility encourages broader adoption within organizations, facilitating a data-driven culture.

The technology stack powering Black Box Version 1.0 is another highlight. It utilizes cloud computing, enabling scalability and flexibility in data storage and processing. By harnessing the power of the cloud, organizations can scale their operations seamlessly, accommodating growth without the burden of extensive infrastructure investment.

Furthermore, Black Box Version 1.0 incorporates natural language processing (NLP) tools, allowing users to interact with the platform using conversational language. This feature enhances the user experience by simplifying data queries, making it easier for users to extract relevant insights without needing to understand complex coding or database structures.

Integration capabilities are also a core feature of Black Box Version 1.0. The platform is designed to easily connect with various existing systems, including CRMs, ERPs, and other data sources. This interoperability facilitates a unified approach to data management, helping organizations to eliminate data silos and maximize the value of their data.

Finally, Black Box Version 1.0 prioritizes data security and compliance. With increasing regulatory scrutiny, the platform adheres to stringent data protection standards, ensuring that sensitive information remains secure while enabling organizations to focus on their core business strategies.

In summary, Black Box Version 1.0 is a comprehensive platform that combines advanced data analytics, machine learning, and user-centric design. Its main features, such as real-time data processing, user-friendly interfaces, powerful cloud architectures, integration abilities, and strong security measures, make it a vital tool for organizations looking to harness the power of their data and drive informed decisions.
Top Page Image Contents