SRv6: Support SRv6 in BGP-LS and Traffic Engineering Database

Junos OS support SRv6 in BGP-LS and Traffic Engineering Database (TED). BGP-LS extensions export the SRv6 topology information to the SDN controllers. Controllers receive the topology information by being part of an IGP domain or through BGP-LS. You can filter NLRIs based on IPv6 prefix (SRv6 Locator) and SRv6 SID NLRIs. To filter NLRIs based on IPv6 prefix, use ipv6-prefix at the [edit policy-options policy-statement name from traffic-engineering] hierarchy level. To filter NLRIs based on SRv6 SID, use srv6-sid at the [edit policy-options policy-statement name from traffic-engineering] hierarchy level.