632periodic: Triggers DPD at regular intervals. The device triggers DPD at the specified interval.Usage guidelinesDPD is triggered periodically or on-demand. As a best practice, use the on-demand mode when thedevice communicates with a large number of IKEv2 peers. For an earlier detection of dead peers,use the periodic triggering mode, which consumes more bandwidth and CPU.The triggering interval must be longer than the retry interval, so that the device will not trigger a newround of DPD during a DPD retry.You can configure IKEv2 DPD in both IKEv2 profile view and system view. The IKEv2 DPD settingsin IKEv2 profile view apply. If you do not configure IKEv2 DPD in IKEv2 profile view, the IKEv2 DPDsettings in system view apply.Examples# Configure the device to trigger IKEv2 DPD if it has IPsec traffic to send and has not received anyIPsec packets from the peer for 15 seconds. system-view[Sysname] ikev2 dpd interval 15 on-demand# Configure the device to trigger IKEv2 DPD every 15 seconds. system-view[Sysname] ikev2 dpd interval 15 periodicRelated commandsdpd (IKEv2 profile view)ikev2 ipv6-address-groupUse ikev2 ipv6-address-group to configure an IKEv2 IPv6 address pool for assigning IPv6addresses to remote peers.Use undo ikev2 ipv6-address-group to delete an IKEv2 IPv6 address pool.Syntaxikev2 ipv6-address-group group-name prefix prefix/prefix-len assign-len assign-lenundo ikev2 ipv6-address-group group-nameDefaultNo IKEv2 IPv6 address pools exist.ViewsSystem viewPredefined user rolesnetwork-adminParametersgroup-name: Specifies a name for the IKEv2 IPv6 address pool. The group-name argument is acase-insensitive string of 1 to 63 characters.prefix prefix/prefix-len: Specifies an IPv6 prefix in the format of prefix/prefix length. The value rangefor the prefix-len argument is 1 to 128.assign-len assign-len: Specifies the assigned prefix length. The value range for the assign-lenargument is 0 to 128, and the value must be greater than or equal to prefix-len. The differencebetween assign-len and prefix-len must be no more than 16.
