Today, many business processes require at least temporarily intact communication links, either by telephone, fax, e-mail or other services using local area networks (LAN) or wide area networks (WAN). If some or several of these communication links fail over a longer period of time, this may have the following consequences:

If time-critical IT applications are run on IT systems that are connected via wide area networks, then the initial damage and consequential damage possible are correspondingly high if no alternative methods are available (such as connecting to a second communication network).

Similar problems may occur if there are malfunctions in the required communication networks, but without a complete failure. For example, communication links may also a have a higher error rate or other quality defects. Incorrect operating parameters may also lead to impairments.

Examples:

Pedidos ligados

Ligações
Tipo de ligação Pedido
is blocked by OPS.1.1.5.A13 Highly Available Logging Infrastructure (H)
is blocked by OPS.1.1.7.A1 Specification of System Management Requirements (B)
is blocked by OPS.1.1.7.A2 System Management Planning (B)
is blocked by OPS.1.1.7.A20 Implementing System Management Solutions for High Availability (H)
is blocked by OPS.2.2.A11 Drawing Up a Contingency Concept for a Cloud Service (S)
is blocked by OPS.3.1.A8 Agreements on Connecting to Outsourcing Partner Networks (S)
is blocked by OPS.3.1.A14 Contingency Planning for Outsourcing [BCM Officer] (S)
is blocked by APP.1.4.A1 Requirements Analysis for the Use of Apps [Process Owner] (B)
is blocked by APP.3.6.A22 Connecting DNS Servers via Different Providers (H)
is blocked by SYS.3.2.3.A14 Using the iCloud Infrastructure (S)
is blocked by SYS.4.4.A6 Integration of IoT Devices into Organisation Security Policies (S)
is blocked by SYS.4.4.A7 Planning the Use of IoT Devices (S)
is blocked by SYS.4.4.A9 Controlling the Use of IoT Devices (S)
is blocked by SYS.4.4.A17 Monitoring Network Traffic on IoT Devices (S)
is blocked by IND.1.A4 Documentation of OT Infrastructure (S)
is blocked by IND.1.A5 Development of a Suitable Zone Concept [Planner] (S)
is blocked by IND.1.A6 Change Management in OT Operations (S)
is blocked by IND.1.A21 Documentation of Communication Relationships [OT Operations (Operational Technology, OT)] (S)
is blocked by IND.1.A13 Contingency Planning for OT (H)
is blocked by IND.1.A24 Communication in the Event of Incidents [OT Operations] (S)
is blocked by IND.2.1.A7 Creating Backups [OT Operations] (S)
is blocked by IND.2.1.A18 Communication in the Event of Incidents [OT Operations, Employee] (S)
is blocked by IND.2.1.A19 Security Tests [OT Operations] (H)
is blocked by IND.2.7.A4 Making Information Security an Integral Part of Functional Safety Management [ICS Information Security Officer] (S)
is blocked by IND.2.7.A5 SIS Business Continuity Management [ICS Information Security Officer] (S)
is blocked by IND.2.7.A6 Secure Planning and Specification of SIS [Planner, Maintenance Personnel, ICS Information Security Officer] (S)
is blocked by IND.2.7.A7 Separation and Independence of the SIS from the Environment [Planner, Maintenance Personnel] (S)
is blocked by IND.2.7.A9 Protection of Data and Signal Connections [Planner, Maintenance Personnel, ICS Information Security Officer] (S)
is blocked by NET.1.1.A14 Implementation of Network Planning (B)
is blocked by NET.1.1.A22 Specification of the Segmentation Concept (S)
is blocked by NET.1.1.A25 Detailed and Implementation Planning of Network Architecture and Design (S)
is blocked by NET.1.1.A29 Implementing Network Connections for High Availability (H)
is blocked by NET.1.1.A30 Protection Against Distributed Denial of Service (H)
is blocked by NET.2.1.A2 Selection of a Suitable WLAN Standard [Planner] (B)
is blocked by NET.2.1.A4 Suitable Location of Access Points [Building Services] (B)
is blocked by NET.3.1.A1 Secure Basic Configuration of a Router or Switch (B)
is blocked by NET.3.1.A4 Protection of Administration Interfaces (B)
is blocked by NET.3.1.A5 Protection Against Fragmentation Attacks (B)
is blocked by NET.3.1.A9 Operational Documentation (B)
is blocked by NET.3.1.A11 Procurement of a Router or Switch (S)
is blocked by NET.3.1.A12 Drawing Up a Configuration Checklist for Routers and Switches (S)
is blocked by NET.3.1.A13 Administration Using a Separate Management Network (S)
is blocked by NET.3.1.A14 Protection Against Misuse of ICMP Messages (S)
is blocked by NET.3.1.A15 Bogon and Spoofing Filtering (S)
is blocked by NET.3.1.A16 Protection Against “IPv6 Routing Header Type-0” attacks (S)
is blocked by NET.3.1.A17 Protection Against DoS and DDoS Attacks (S)
is blocked by NET.3.1.A18 Configuration of Access Control Lists (S)
is blocked by NET.3.1.A19 Protection of Switch Ports (S)
is blocked by NET.3.1.A23 Audits and Penetration Tests (S)
is blocked by NET.3.1.A24 Use of Network Access Controls (H)
is blocked by NET.3.1.A28 Use of Certified Products (H)
is blocked by NET.3.2.A4 Secure Firewall Configuration (B)
is blocked by NET.3.2.A6 Protection of Administration Interfaces (B)
is blocked by NET.3.2.A7 Emergency Access to the Firewall (B)
is blocked by NET.3.2.A18 Administration Using a Separate Management Network (S)
is blocked by NET.3.2.A23 System Monitoring and Evaluation (S)
is blocked by NET.3.2.A29 Use of High-Availability Solutions (H)
is blocked by NET.3.2.A30 Bandwidth Management for Critical Applications and Services (H)
is blocked by NET.3.3.A3 Secure Installation of VPN End Devices (B)
is blocked by NET.3.3.A9 Selection of Suitable VPN Products (S)
is blocked by NET.3.3.A11 Secure Integration of an External Network (S)
is blocked by NET.4.1.A2 Selection of Telecommunications Service Providers [IT Operation Department] (B)
is blocked by NET.4.1.A13 Acquisition of Telecommunications Systems (S)
is blocked by NET.4.1.A14 Contingency Planning for Telecommunication Systems (S)
is blocked by NET.4.1.A15 Emergency Calls in the Event of a Telecommunications System Failure (S)
is blocked by NET.4.1.A19 Redundant Connections (H)
is blocked by NET.4.2.A1 Planning the Use of VoIP (B)
is blocked by NET.4.2.A4 Restricting Accessibility via VoIP (B)
is blocked by NET.4.2.A9 Selection of Suitable VoIP Components (S)
is blocked by NET.4.2.A12 Secure Decommissioning of VoIP Components (S)
is blocked by NET.4.2.A15 Secure Media Transport Using SRTP (H)
is blocked by NET.4.2.A16 Network Separation for Data and VoIP (H)
is blocked by INF.12.A1 Selection of Appropriate Cable Types [IT Operation Department, Building Services] (B)
is blocked by INF.12.A2 Planning Cable Routing [IT Operation Department, Building Services] (B)
is blocked by INF.12.A3 Proper Installation [IT Operation Department, Building Services] (B)
is blocked by INF.12.A5 Requirements Analysis for Cabling [IT Operation Department, Building Services] (S)
is blocked by INF.12.A12 Inspection of Electrical Installations and Existing Connections [IT Operation Department, Building Services] (S)
is blocked by INF.12.A15 Material Protection of Cabling [IT Operation Department, Building Services] (H)
is blocked by INF.12.A17 Redundancies for IT Cabling [IT Operation Department] (H)
is blocked by INF.13.A6 Drawing Up a TBM Concept (S) [Planner]
is blocked by INF.13.A7 Creating a Radio Frequency Register (S)
is blocked by INF.13.A17 Provisions for Maintenance and Repairs in TBM (S)
is blocked by INF.13.A18 Proactive Maintenance in TBM (S) [Planner]
is blocked by INF.13.A22 Performing System Tests in TBM (S) [Planner]
is blocked by INF.13.A25 Establishment of a Test Environment for TBM (H) [Planner]
is blocked by INF.14.A3 Secure Connection of Building Services and Building Services Systems (B)
is blocked by INF.14.A4 Consideration of Hazard Detection Systems in BACS (B) [Planner]
is blocked by INF.14.A6 Separation of BACS Networks (B) [Planner, IT Operation Department]
is blocked by INF.14.A10 Formation of Independent BACS Areas (S) [Planner]
is blocked by INF.14.A13 Network Segmentation in BACS (S) [Planner]
is blocked by INF.14.A19 Use of Dedicated Address Ranges for BACS Networks (S) [Planner]
is blocked by INF.14.A20 Avoiding Broadcast Communication in BACS Networks (S) [Planner]