Communications and network technology
Communications and network technology cover the systems that carry voice, data and control signals, including fixed, mobile, satellite and undersea links. They are critical for coordination during crises and for the operation of other infrastructure. Critical Infrastructure stewards this page for the Nexus Consortium.
- Institution
- The Global Centre for Risk and Innovation (GCRI)
- Service level
- R0: information and enquiries
Telemetry network
GCRI · Communications and network… · Run R-4557
- Channels reporting91of 100Normal
- Median latency74ms
- Records failing checks1.7per 1,000Watch
- Backlog33min
Latency, p95
Events
- 06:25WarnChannel C-77 stale
- 07:49InfoSchema v5 accepted
- 08:48ErrorChecksum mismatch, batch quarantined
- 08:34DoneReplay complete
GCRI · Telemetry networkTelemetry network, in outline: domain structure with placeholder names and illustrative values, not a record.
The short answer.
Communications and network technology cover the systems that carry voice, data and control signals, including fixed, mobile, satellite and undersea links. Communications analysis shows how outages cascade to payments, emergency services and grid control. In the Nexus Consortium, Critical Infrastructure stewards its canonical page, and 2 other platforms apply it, including Cybersecurity and Digital Resilience as well as Space and Earth Observation.
Digital demand and connectivity in Latin America and the Caribbean.
Urban demand centres and the hubs that anchor digital and data infrastructure, shown for Latin America and the Caribbean as an example geography for this subject.
What communications and network technology covers.
- 01
Core methods
network topology analysis; traffic engineering; radio propagation modelling; redundancy and diversity planning; protocol design; outage analysis.
- 02
Data and instruments
network performance monitoring; outage reports; spectrum measurements; cable and tower registries; routing tables.
- 03
Validation
Network designs are tested through simulation, field measurement and failover drills. Post-incident reviews compare expected and observed performance.
- 04
Limits
Shared ducts, landing points and power supplies create hidden common-mode failures. Demand surges during emergencies can exceed planned capacity.
- 05
Use in risk decisions
Communications analysis shows how outages cascade to payments, emergency services and grid control. It informs priorities for redundancy and emergency communication plans.
Communications networks are governed by ITU and IETF standards.
| Reference | What it sets |
|---|---|
| ITU-T and ITU-R recommendations | Telecommunication and radio standards |
| Common Alerting Protocol (ITU-T X.1303) | Public warning message format |
| IETF RFC series | Internet protocols |
Connectivity as a shared dependency.
Telecommunications carry warnings, payments, grid control and emergency coordination. Their own dependencies (power at cell sites, submarine cables, a few internet exchange points) make them a channel through which local failures spread. Warning systems must work when networks are congested or partly down.
- Map backup power duration at cell sites.
- Identify cable landing and exchange concentration.
- Test warning delivery under congestion.
- Applications on Critical Infrastructure and Cyber and Digital Resilience.
Platforms that apply this method.
Who maintains this page.
Critical Infrastructure stewards communications and network technology: it keeps this description current and reviews how the method is applied across the platforms.
Terms used on this page.
Each term as this page uses it. Where a standard-setting body defines the term, the wording follows that body.
| Term | Definition |
|---|---|
| Mission-critical communications | Communications whose failure would endanger life or essential services, requiring high availability. |
| Route diversity | Physically separate paths for traffic so one cut does not stop all connections. |
| Network zone | A segment of a network grouping systems with similar security requirements. |
| Zero trust | A security model that grants access based on continuous verification, not network location. |
Where this page's references lead.
The bodies and documents this page is read against. Status and editions change; each link goes to the issuing body.
Where this page leads across the Consortium.
Questions and answers.
Why does one institution host every method page?
How do I suggest a correction to a method page?
Around GCRI.
Start with an enquiry.
The current service level is R0: information and enquiries. An enquiry receives a reference and names the next step; applications, payments, compute allocations and registrations open only when their team, terms and review capacity exist.