The three earlier examples assumed that data packets from S1, S2, and S3 are routed to both outgoing interfaces.
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Let's assume that data packets from S2 and S3 are not forwarded to interface C, e.g., because the network topology provides a shorter path for these senders towards R1, not traversing this node.
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The table below shows WF style reservations under this assumption. Since there is no route from B to C, the reservation forwarded out interface B considers only the reservation on interface D.
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