| 摘要 |
<p>Embodiments of the present invention disclose a method, an apparatus, and a system for transmitting data in an E1 bidirectional ring network. The E1 node includes: an Ethernet transmitting unit connected to a local Ethernet device through an Ethernet branch port, a CPU unit, and an E1 driving unit including a first-direction link port and a second-direction link port; when the CPU unit determines, on the basis of an interaction state of link state detection signaling with a neighboring E1 node, that a transmission link between the E1 node and the neighboring E1 node fails, link failure information is transmitted to a master node through a link port in the first-direction link port and the second-direction link port of the E1 node, where the link port is not a link port that is associated with the failed transmission link and is currently unavailable, so that the master node switches an operation mode of the first-direction link port of the master node from an operation mode where the first-direction link port sends data to an operation mode of both receiving and sending data, and switches an operation mode of the second-direction link port of the master node from an operation mode where the second-direction link port receives data to an operation mode of both receiving and sending data. The embodiments of the present invention can effectively improve the survivability of the E1 bidirectional ring network.</p> |
