229Tasks at a glance(Required.) Enabling IPv6 NetStream(Optional.) Configuring IPv6 NetStream filtering(Optional.) Configuring IPv6 NetStream sampling(Optional.) Configuring attributes of the IPv6 NetStream data export(Optional.) Configuring IPv6 NetStream flow aging(Required.) Perform at least one of the following tasks to configure the IPv6 NetStream data export:• Configuring the IPv6 NetStream traditional data export• Configuring the IPv6 NetStream aggregation data exportEnabling IPv6 NetStreamStep Command Remarks1. Enter system view. system-view N/A2. Enter interface view. interface interface-type interface-number N/A3. Enable IPv6 NetStreamon the interface. ipv6 netstream { inbound | outbound } By default, IPv6 NetStream isdisabled on an interface.Configuring IPv6 NetStream filteringWhen you configure IPv6 NetStream filtering, follow these restrictions and guidelines:• The IPv6 NetStream filtering function does not take effect on MPLS packets.• If IPv6 NetStream filtering and sampling are both configured, IPv6 packets are filtered first, andthen the permitted packets are sampled.To configure IPv6 NetStream filtering:Step Command Remarks1. Enter system view. system-view N/A2. Enter interface view. interface interface-type interface-number N/A3. Configure IPv6 NetStreamfiltering on the interface.ipv6 netstream { inbound | outbound }filter acl acl-numberBy default, IPv6 NetStreamfiltering is disabled. IPv6NetStream collectsstatistics of all IPv6 packetspassing through theinterface.