[ceph-users] Binding to cluster-addr

Hello Ceph Users, I deployed a ceph cluster (v14.2.1, using docker), the cluster status seems OK but the write performance tested by rados bench seems bad. When I check the network connection using netstat -nat, I found that there is no connection established using the cluster network interface. The OSD daemon entrypoint is something like this: /usr/bin/ceph-osd -f --public-addr 111.111.121.2 --cluster-addr 111.111.131.2 -i 1 But there is no connection established using the IP 111.111.131.2. Is it a problematic behavior? If yes, would you please give me some hints to debug this problem? Thank you! Xu Yun