Difference between address-family ipv6 and address-family ipv6 labeled unicast

Hello Experts,
Can someone explain me the difference between address-family ipv6 and address-family ipv6 labeled unicast. Per my understanding, i think both of them are used to send labelled IPv6 prefix advertisements through BGP..If so, are the following configs same?
address-family ipv6
neighbor 192.168.0.1 activate
neighbor 192.168.0.1 send-label
router bgp 10
neighbor 192.168.0.1
address-family ipv6 labelled unicast
Please let me know if my understanding is correct
Thanks
Mukundh

Thanks for the reply Nagendra...
I have another related query regarding this. We have BGP neighborship flapping between 2 routers ...One is Cisco 7204 and another is Juniper M120 I think.... The Juniper logs show that BGP is flapped due to family inet6 not configured on the Juniper end and Juniper is receiving BGP advertisements with native IPv6 as next hop from Cisco when it shouldn't be receiving that.. The following are commands on Cisco and Juniper...
##### CISCO####
outer bgp 5603
neighbor 95.176.254.10 inherit peer-session LAR  neighbor 95.176.254.10 description --- M320-LAB-LJ-CIGALETOVA  address-family ipv4
  neighbor 95.176.254.10 activate
  neighbor 95.176.254.10 inherit peer-policy LAR-ipv4  address-family ipv6
  neighbor 95.176.254.10 activate
  neighbor 95.176.254.10 send-community both
  neighbor 95.176.254.10 route-reflector-client
  neighbor 95.176.254.10 send-label
template peer-session LAR
  remote-as 5603
  update-source Loopback0
  timers 30 90
exit-peer-session
template peer-policy LAR-ipv4
  route-map LAR-ipv4-out out
  route-reflector-client
  soft-reconfiguration inbound
  send-community both
exit-peer-policy
####JUNIPER####
protocols{bgp{
group I-BGP-IPV4 {
            type internal;
            family inet {
                unicast;
            family inet6 {
                labeled-unicast {
                    explicit-null;
            export RR-Export-All;
            neighbor 95.176.255.254 {
                description C7201-RR-IP-CIGALETOVA;
                local-address 95.176.254.10;
            neighbor 95.176.255.252 {
                description C7201-RR-IP-CIGALETOVA;
                local-address 95.176.254.10;
By the cisco command above, shouldn't cisco be sending only labelled ipv6 prefixes or am I wrong in this. And if Cisco sends both unlabelled and labelled prefixes, is there a way to make it send only ipv6 prefixes?
Thanks
Mukundh

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