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1 : 0 Architecture
A single Horizon link carries all the traffic requirements between two locations enabling the lowest link cost, while providing 99.999% network availability, and delivering high-speed native Ethernet services. The 1:0 configuration is especially useful where "Service Level Agreements" do not exist or where service is being provided on a "best effort" basis or as a redundancy alternative to fiber/wireline technology.
1 + 1 Architecture
Horizon solutions can be deployed in a fully redundant, 1+1 mode using two complete links. Link1 is the “live/hot” link and link2 runs as the “standby” link. In a strictly redundant focus, all traffic runs on the hot link. When a hardware failure is detected, traffic is immediately switched to the standby link using Rapid Spanning Tree Protocol (RSTP) or Link Aggregation Control Protocol (LACP). For further link optimization, this configuration can support prioritized load sharing. The 1+1 configuration delivers <50ms protection Ethernet switching, creating a hardened redundant configuration.
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