论文标题
在闪电网络中的路由收敛延迟上
On the Routing Convergence Delay in the Lightning Network
论文作者
论文摘要
闪电网络中的节点通过使用交错广播机制的八卦协议同步路由信息。在这项工作中，我们表明网络中的收敛延迟大于协议规范中的预期，并且由延迟造成的付款尝试失败更为频繁，延迟越大。为此，我们测量网络中产生的收敛延迟，并分析其主要原因是什么。此外，我们通过对闪电网络八卦协议的时间二散模拟进行进一步调查并确认我们的发现。我们探讨了替代八卦协议的使用以及当前协议的参数变化，并通过所得的带宽使用和收敛延迟对其进行评估。我们的研究表明，有多种方法可以降低收敛延迟，从简单的参数更改到对整个协议进行大修。
Nodes in the Lightning Network synchronise routing information through a gossip protocol that makes use of a staggered broadcast mechanism. In this work, we show that the convergence delay in the network is larger than what would be expected from the protocol's specification and that payment attempt failures caused by the delay are more frequent, the larger the delay is. To this end, we measure the convergence delay incurred in the network and analyse what its primary causes are. Moreover, we further investigate and confirm our findings through a time-discrete simulation of the Lightning Network gossip protocol. We explore the use of alternative gossip protocols as well as parameter variations of the current protocol and evaluate them by the resulting bandwidth usage and convergence delay. Our research shows that there are multiple ways of lowering the convergence delay, ranging from simple parameter changes to overhauling the entire protocol.
