diff --git a/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/calc/MultiLineGNSSCalcService.java b/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/calc/MultiLineGNSSCalcService.java
index c0238dbb..2b31c8dd 100644
--- a/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/calc/MultiLineGNSSCalcService.java
+++ b/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/calc/MultiLineGNSSCalcService.java
@@ -87,7 +87,7 @@ public class MultiLineGNSSCalcService {
                 // 查找序号不连续的问题
                 i++;
                 if(i==1) logger.info("d342: 1st d341 seq {}", message.getSeq());
-                else if(i==d341Count) logger.info("d342: {}th d341 seq ",d341Count,message.getSeq());
+                else if(i==d341Count) logger.info("d342: {}th d341 seq {}",d341Count,message.getSeq());
             }
         }
         else if(lastD342Time != null){
diff --git a/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/server/udp/RtcmUdpServer.java b/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/server/udp/RtcmUdpServer.java
index 6f699693..ae5c8977 100644
--- a/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/server/udp/RtcmUdpServer.java
+++ b/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/server/udp/RtcmUdpServer.java
@@ -2,6 +2,7 @@ package com.imdroid.sideslope.server.udp;
 
 import io.netty.bootstrap.Bootstrap;
 import io.netty.channel.ChannelFuture;
+import io.netty.channel.ChannelOption;
 import io.netty.channel.EventLoopGroup;
 import io.netty.channel.nio.NioEventLoopGroup;
 import io.netty.channel.socket.nio.NioDatagramChannel;
@@ -43,8 +44,8 @@ public class RtcmUdpServer implements ApplicationRunner {
         Bootstrap bootstrap = new Bootstrap();
         bootstrap.group(group)
                 .channel(NioDatagramChannel.class)
-                //.option(ChannelOption.SO_SNDBUF, 512) //让系统自动设置
-                //.option(ChannelOption.SO_RCVBUF, 512)
+                .option(ChannelOption.SO_SNDBUF, 1024*1024) //1M缓存，考虑1000个基站同时转发
+                .option(ChannelOption.SO_RCVBUF, 1024*1024)//1M缓存，断点续传要大带宽
                 .handler(rtcmUdpHandler);
         try {
             ChannelFuture future = bootstrap.bind(port).sync().channel().closeFuture();