The calls to /etc/sysconfig/network-scripts/ifdown-post near
the end of /etc/sysconfig/network-scripts/ifdown-ppp
shouldn't be there (or I just think they shouldn't be).
ifdown-post is called by /etc/ppp/ip-down and I think it's
ifup-ppp works OK, there's even a comment line that says:
# ifup-post for PPP is handled through /etc/ppp/ip-up
this is fixed in initscripts-4.31, which will be in the next
Raw Hide release.