You can enable QoS on WAN interfaces using different bandwidths. For example, you can configure the uplink for the inpath0_0 interface for 10 Mbps to connect to a 10-Mbps terrestrial link and configure the uplink for inpath0_1 for 1 Mbps to connect to a 1-Mbps satellite backup link.

Keep in mind that the outbound WAN capacity limit is based per SteelHead, regardless of the number of interfaces. For example, with a SteelHead EX1160, the QoS bandwidth is limited to 100 Mbps of traffic regardless of the number of interfaces installed or enabled for QoS.

The bandwidth and latency allocation are applied across all the interfaces. Continuing with the previous example, if you allocate 10% of the bandwidth for CIFS traffic, then that would be 10% of the 10-Mbps link and 10% of the 1-Mbps link.