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由 Jon Paul Maloy 提交于
Because of the risk of an excessive number of NACK messages and retransissions, receivers have until now abstained from sending broadcast NACKS directly upon detection of a packet sequence number gap. We have instead relied on such gaps being detected by link protocol STATE message exchange, something that by necessity delays such detection and subsequent retransmissions. With the introduction of unicast NACK transmission and rate control of retransmissions we can now remove this limitation. We now allow receiving nodes to send NACKS immediately, while coordinating the permission to do so among the nodes in order to avoid NACK storms. Reviewed-by: NYing Xue <ying.xue@windriver.com> Signed-off-by: NJon Maloy <jon.maloy@ericsson.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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