delay of tb network

I ftp 18G date between 2 node (in datacenter). But all other protocol transmission delayed by the operation. My ssh terminal even became timeout and killed.
A terrible operation!
We should restrict bandwidth with tc/iptables.

$ ping 192.168.111.156
PING 192.168.111.156 (192.168.111.156) 56(84) bytes of data.
64 bytes from 192.168.111.156: icmp_seq=36 ttl=63 time=8.94 ms
64 bytes from 192.168.111.156: icmp_seq=39 ttl=63 time=9.79 ms
64 bytes from 192.168.111.156: icmp_seq=44 ttl=63 time=0.246 ms
64 bytes from 192.168.111.156: icmp_seq=117 ttl=63 time=0.233 ms
64 bytes from 192.168.111.156: icmp_seq=120 ttl=63 time=18.5 ms
64 bytes from 192.168.111.156: icmp_seq=136 ttl=63 time=0.232 ms