Do RODCs in Permeter Network need to talk to FSMO Role Holders?

Hello,

I have a W2K8 R2 RODC in perimeter network (joined to internal domain) that can ONLY talk to a single internal W2K8 RWDC in the next site (this RWDC holds none of the FSMO roles).

My question is: Does the RODC ever need to talk to the other internal DCs holding FSMO roles?

When I run a DCDIAG on the RODC, it knows who the FSMO Role holders are, but obviously can't communicate with them (by design). Will this cause issues for the RODC?

Sample DCDIAG Output from the RODC:

 Starting test: KnowsOfRoleHolders

         [W2K8DC1] DsBindWithSpnEx() failed with error 1722,

         The RPC server is unavailable..

         Warning: W2K8DC1 is the Schema Owner, but is not responding to DS RPC

         Bind.

         Warning: W2K8DC1 is the Schema Owner, but is not responding to LDAP

         Bind.

         Warning: W2K8DC1 is the Domain Owner, but is not responding to DS RPC

         Bind.

         Warning: W2K8DC1 is the Domain Owner, but is not responding to LDAP

         Bind.

         Warning: W2K8DC1 is the PDC Owner, but is not responding to DS RPC

         Bind.

         Warning: W2K8DC1 is the PDC Owner, but is not responding to LDAP Bind.

         Warning: W2K8DC1 is the Rid Owner, but is not responding to DS RPC

         Bind.

         Warning: W2K8DC1 is the Rid Owner, but is not responding to LDAP Bind.

         Warning: W2K8DC1 is the Infrastructure Update Owner, but is not

         responding to DS RPC Bind.

         Warning: W2K8DC1 is the Infrastructure Update Owner, but is not

         responding to LDAP Bind.

         ......................... RODC1 failed test KnowsOfRoleHolders

Thanks for any assistance or references!