Allied Telesis UDLD License for GS970M

Keep switch links honest under failure conditions with UDLD licensing for the Allied Telesis GS970M. This software license enables Unidirectional Link Detection, a control mechanism used to identify one-way fiber or copper link faults that can otherwise create loops, black holes, or intermittent connectivity issues. For infrastructure teams, the value is operational clarity. Instead of waiting for symptoms to surface in the application stack, UDLD helps the switch detect a bad link state and respond according to your network policy. That matters in access, aggregation, and distribution layers where a single silent link failure can affect multiple downstream systems. This license is a fit for organizations that already standardize on the GS970M platform and want to harden it without replacing hardware. It is a targeted purchase: low overhead, specific function, and meaningful risk reduction for networks that carry business-critical traffic. When uptime and fault isolation matter, adding protocol-level link validation is a practical way to protect the switching fabric.