I noticed that when I do:
myrouter#show ip protocols vrf MYTEST
Routing Protocol is "bgp 1000"
IGRP synchronization is disabled
Automatic route summarization is disabled
Other protocols listed under such command (such as OSPF) did not show any visible difference to me regardless if I enter "no auto-summary" under the respective "vrf" or not.
That said, my conclusion is that bgp summarization is disabled because it inherited the setting from the "router bgp 1000", in which "no auto-summary" was entered.
That means that it is irrelevant doing "no auto-summary" under the 'address-family ipv4 vrf' instance?
The way I see it, it appears that as long as do "no auto-summary" under the respective "router protocol <>" line, the "no auto-summary" under "vrf" is ignored, right?