portage-ng --merge
>>> Emerging : portage://sys-apps/iproute2-6.16.0:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://sys-apps/iproute2-6.16.0
│ └─ file ─┤ 909.30 Kb iproute2-6.16.0.tar.xz
└─step 2─┤ downgrade portage://sys-apps/iproute2-6.16.0 (replaces pkg://sys-apps/iproute2-6.19.0)
│ └─ conf ─┤ USE = "iptables -berkdb* -atm -bpf -caps -elf -minimal -nfs"
└─step 3─┤ run portage://sys-apps/iproute2-6.16.0
Total: 3 actions (1 download, 1 downgrade, 1 run), grouped into 3 steps.
909.30 Kb to be downloaded.