This is what I see from a VM on top of Xena deployment - no RA until the periodic interval:


10:50:07.933169 fa:16:3e:d9:ca:78 > 33:33:00:00:00:02, ethertype IPv6 (0x86dd), length 70: (flowlabel 0x8f5ed, hlim 255, next-header ICMPv6 (58) payload length: 16) fe80::f816:3eff:fed9:ca78 > ff02::2: [icmp6 sum ok] ICMP6, router solicitation, length 16
          source link-address option (1), length 8 (1): fa:16:3e:d9:ca:78
10:50:12.282979 fa:16:3e:d9:ca:78 > 33:33:00:00:00:02, ethertype IPv6 (0x86dd), length 70: (flowlabel 0x8f5ed, hlim 255, next-header ICMPv6 (58) payload length: 16) fe80::f816:3eff:fed9:ca78 > ff02::2: [icmp6 sum ok] ICMP6, router solicitation, length 16
          source link-address option (1), length 8 (1): fa:16:3e:d9:ca:78
10:50:20.680418 fa:16:3e:d9:ca:78 > 33:33:00:00:00:02, ethertype IPv6 (0x86dd), length 70: (flowlabel 0x8f5ed, hlim 255, next-header ICMPv6 (58) payload length: 16) fe80::f816:3eff:fed9:ca78 > ff02::2: [icmp6 sum ok] ICMP6, router solicitation, length 16
          source link-address option (1), length 8 (1): fa:16:3e:d9:ca:78
10:50:36.651279 fa:16:3e:d9:ca:78 > 33:33:00:00:00:02, ethertype IPv6 (0x86dd), length 70: (flowlabel 0x8f5ed, hlim 255, next-header ICMPv6 (58) payload length: 16) fe80::f816:3eff:fed9:ca78 > ff02::2: [icmp6 sum ok] ICMP6, router solicitation, length 16
          source link-address option (1), length 8 (1): fa:16:3e:d9:ca:78
10:51:08.183176 fa:16:3e:d9:ca:78 > 33:33:00:00:00:02, ethertype IPv6 (0x86dd), length 70: (flowlabel 0x8f5ed, hlim 255, next-header ICMPv6 (58) payload length: 16) fe80::f816:3eff:fed9:ca78 > ff02::2: [icmp6 sum ok] ICMP6, router solicitation, length 16
          source link-address option (1), length 8 (1): fa:16:3e:d9:ca:78
10:52:08.250195 fa:16:3e:d9:ca:78 > 33:33:00:00:00:02, ethertype IPv6 (0x86dd), length 70: (flowlabel 0x8f5ed, hlim 255, next-header ICMPv6 (58) payload length: 16) fe80::f816:3eff:fed9:ca78 > ff02::2: [icmp6 sum ok] ICMP6, router solicitation, length 16
          source link-address option (1), length 8 (1): fa:16:3e:d9:ca:78
10:52:50.716674 fa:16:3e:bc:47:96 > 33:33:00:00:00:01, ethertype IPv6 (0x86dd), length 118: (hlim 255, next-header ICMPv6 (58) payload length: 64) fe80::f816:3eff:febc:4796 > ff02::1: [icmp6 sum ok] ICMP6, router advertisement, length 64
        hop limit 255, Flags [none], pref medium, router lifetime 65535s, reachable time 0ms, retrans timer 0ms
          source link-address option (1), length 8 (1): fa:16:3e:bc:47:96
          mtu option (5), length 8 (1):  1442
          prefix info option (3), length 32 (4): fc00:aa:aa:aa::/64, Flags [onlink, auto], valid time infinity, pref. time infinity
10:52:50.801190 fa:16:3e:d9:ca:78 > 33:33:ff:d9:ca:78, ethertype IPv6 (0x86dd), length 86: (hlim 255, next-header ICMPv6 (58) payload length: 32) :: > ff02::1:ffd9:ca78: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has fc00:aa:aa:aa:f816:3eff:fed9:ca78
          unknown option (14), length 8 (1): 
          0x0000:  8243 99fc 248e
10:59:45.754605 fe:16:3e:d9:ca:78 > 33:33:00:00:00:02, ethertype IPv6 (0x86dd), length 70: (hlim 255, next-header ICMPv6 (58) payload length: 16) fe80::fc16:3eff:fed9:ca78 > ff02::2: [icmp6 sum ok] ICMP6, router solicitation, length 16
          source link-address option (1), length 8 (1): fe:16:3e:d9:ca:78
11:02:41.558000 fa:16:3e:bc:47:96 > 33:33:00:00:00:01, ethertype IPv6 (0x86dd), length 118: (hlim 255, next-header ICMPv6 (58) payload length: 64) fe80::f816:3eff:febc:4796 > ff02::1: [icmp6 sum ok] ICMP6, router advertisement, length 64
        hop limit 255, Flags [none], pref medium, router lifetime 65535s, reachable time 0ms, retrans timer 0ms
          source link-address option (1), length 8 (1): fa:16:3e:bc:47:96
          mtu option (5), length 8 (1):  1442
          prefix info option (3), length 32 (4): fc00:aa:aa:aa::/64, Flags [onlink, auto], valid time infinity, pref. time infinity
11:09:44.646805 fa:16:3e:bc:47:96 > 33:33:00:00:00:01, ethertype IPv6 (0x86dd), length 118: (hlim 255, next-header ICMPv6 (58) payload length: 64) fe80::f816:3eff:febc:4796 > ff02::1: [icmp6 sum ok] ICMP6, router advertisement, length 64
        hop limit 255, Flags [none], pref medium, router lifetime 65535s, reachable time 0ms, retrans timer 0ms
          source link-address option (1), length 8 (1): fa:16:3e:bc:47:96
          mtu option (5), length 8 (1):  1442
          prefix info option (3), length 32 (4): fc00:aa:aa:aa::/64, Flags [onlink, auto], valid time infinity, pref. time infinity