Also you probably shouldn't use scp. rsync and sftp have mostly the same semantics.
rsync --bwlimit=2OOK bigfile.iso [email protected]:path/in/destination
sftp -l 200 bigfile.iso [email protected]:path/in/destination
Although it seems that scp is becoming a wrapper around sftp these days:https://www.redhat.com/en/blog/openssh-scp-deprecation-rhel-...
from man page:
-l limit
Limits the used bandwidth, specified in Kbit/s.