"controls require LDAPv3" on cn=config syncrepl

[Brandon Hume <hume-ol@bofh.ca>]

I had a medium-size post describing some problems I'm having with an 
N-Way setup with 2.4.28, but I saw a post from Quanah that sent me in a 
new direction so I'm doing some more testing before whining about *that* 
problem...

But meanwhile... can anyone tell me if seeing errors like the following 
is normal when replicating cn=config?

On the provider:

Nov 30 14:41:22 kil-ds-3 slapd[7540]: conn=1027 fd=26 ACCEPT from IP=172.30.96.203:55371 (IP=172.30.96.202:389)
Nov 30 14:41:22 kil-ds-3 slapd[7540]: conn=1026 op=0 BIND dn="cn=config" mech=SIMPLE ssf=0
Nov 30 14:41:22 kil-ds-3 slapd[7540]: conn=1026 op=0 RESULT tag=97 err=0 text=
Nov 30 14:41:22 kil-ds-3 slapd[7540]: conn=1026 op=1 DISCONNECT tag=101 err=2 text=controls require LDAPv3
Nov 30 14:41:22 kil-ds-3 slapd[7540]: conn=1026 op=1 do_search: get_ctrls failed
Nov 30 14:41:22 kil-ds-3 slapd[7540]: conn=1026 fd=27 closed (operations error)


... and on the consumer:

Nov 30 14:41:22 kil-ds-4 slapd[8178]: do_syncrep2: rid=001 LDAP_RES_SEARCH_RESULT (2) Protocol error
Nov 30 14:41:22 kil-ds-4 slapd[8178]: do_syncrep2: rid=001 (2) Protocol error
Nov 30 14:41:22 kil-ds-4 slapd[8178]: do_syncrepl: rid=001 rc -2 retrying (3 retries left)