Modern networks with scattered topology require deploying sophisticated routing rules in order to achieve network nodes reachability across multiple isolated broadcast domains. Commonly used tunnel-based routing techniques suffer from MTU fragmentation and high CPU load. An alternative VLAN-based solution is proposed in order to overcome limitations associated with L3-level routing. Specifically, MikroTik implementation of hybrid VLANs technology is considered. The proposed approach is shown to be more efficient compared to commonly used L2TP, P2TP, GRE tunnels. Using private IPs for extended VLAN simplifies the security management as only one subnet must be configured in firewalls. Lastly, a case-study of ASNET-AM configuration for AM TLD is presented to provide dedicated channels to two definite upstream links implemented in practice is presented.

Institute for Informatics and Automation Problems of NAS RA

September 23-27

CSIT Conference 2019

Yerevan, Armenia