227Table 13 IPv6 NetStream aggregation modesAggregation mode Aggregation criteriaAS aggregation• Source AS number• Destination AS number• Input interface index• Output interface indexProtocol-port aggregation• Protocol number• Source port• Destination portSource-prefix aggregation• Source AS number• Source mask• Source prefix (source network address)• Input interface indexDestination-prefixaggregation• Destination AS number• Destination mask• Destination prefix (destination network address)• Output interface indexSource-prefix anddestination-prefixaggregation• Source AS number• Source mask• Source prefix (source network address)• Input interface index• Destination AS number• Destination mask• Destination prefix (destination network address)• Output interface indexBGP-nexthop • BGP next hop• Output interface indexIf IPv6 packets are not forwarded according to the BGP routing table, the AS number or BGP next hopcannot be obtained.IPv6 NetStream data export formatIPv6 NetStream exports data in the version 9 format, which is template based.The version 9 format supports exporting the IPv6 NetStream aggregation data, and statistics of BGP nexthop and MPLS packet information.IPv6 NetStream filtering and samplingIPv6 NetStream filteringIPv6 NetStream filtering uses an ACL to identify packets. Whether IPv6 NetStream collects data foridentified packets depends on the action in the matching rule.• IPv6 NetStream collects data for packets that match permit rules in the ACL.• IPv6 NetStream does not collect data for packets that match deny rules in the ACL.For more information about ACLs, see ACL and QoS Configuration Guide.