A router has a first processing element managing a first virtual private network (VPN) 14 or VLAN and a second processing element managing a second VPN 19, each processing element including a configuration module for remote VPN configuration of the mapping of external equipment to network interfaces such as ports, and routing algorithm logic to allow testing of said mapping. The router is used to commission new equipment 15-18 in one VPN after testing whilst being isolated from live equipment 10-13 in the other VPN. There may be Master and Standby lanes which may have their own main processor with first and second processing elements, the router switching the Master lane to the Standby lane to change which VPN is live. The router may be SIL-4 compliant, using a safety-critical real-time operating system. The processing elements may be respective cores of a multi-core CPU. A routing ID in the header for internal use may be derived from the identifiers of the processing element and lane. A direction control field may be in the packet payload. Hot-swapping from one VPN configuration to another is enabled. New railway network equipment can be tested within a live environment.


    Access

    Download


    Export, share and cite



    Title :

    SAFETY-CRITICAL ROUTER


    Additional title:

    SICHERHEITSKRITISCHER ROUTER
    ROUTEUR CRITIQUE POUR LA SÉCURITÉ


    Contributors:

    Publication date :

    2020-08-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr / B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC



    On assessing road safety aspects of a cycling router application

    Hubner, Karl / Schunemann, Bjorn / Schilling, Tom et al. | IEEE | 2017


    VOICE ROUTER

    LI CHAO / CHEN LUCAS | European Patent Office | 2016

    Free access

    Voice router

    LI CHAO / CHEN LUCAS | European Patent Office | 2017

    Free access

    SpaceWire Router

    Parkes, Steve / McClements, Chris / Kempf, Gerald et al. | BASE | 2003

    Free access

    VOICE ROUTER

    LI CHAO / CHEN LUCAS | European Patent Office | 2016

    Free access