| 摘要 |
Methods and systems are described for sharing information for detecting an idle TCP connection. In one aspect, a first packet is received from a first node by a second node. A header is detected, in the first packet, identifying metadata for a period. During the period no non-empty packet, sent in a connection by the second node, is received by the first node. A timeout is detected, based on the metadata, associated with the connection. In response to the timeout, a packet is sent in the connection to the first node and/or the connection is deactivated. In another aspect, information identifying metadata for a period is received by a first node. During the period no non-empty packet, sent in a connection by the second node, is received by the first node. A packet is generated that includes a header identifying the metadata. The packet is sent to the second node.
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