The value of the object tIPvXFltrEntryActEsi specifies the ethernet segment identifier (ESI) of the first ESI identified appliance in Nuage service chain. When the value of tMacFilterParamsAction is 'forwardEsiL2' or 'forwardEsiL3' packets matching the filter entry are forwarded to the appliance using EVPN-resolved VXLAN tunnel in the specified VPLS/VPRN service (tIPvXFltrEntryActFwdEsiSvcId/tIPvXFltrEntryActFwdEsiVRtrId). The value '0' indicates that there is no ESI specified. There are two options how to set the value of tIPvXFltrEntryActEsi: 1. Non zero value of tIPvXFltrEntryActEsi is set together with non zero values of tIPvXFltrEntryActFwdEsiVRtrId, tIPvXFltrEntryActFwdEsiSFIpType and tIPvXFltrEntryActFwdEsiSFIp. In this case value of tIPvXFltrEntryActAction is set to 'forwardEsiL3' by the system. 2. Non zero value of tIPvXFltrEntryActEsi is set together with a non zero value of tIPvXFltrEntryActFwdEsiSvcId. In this case value of tIPvXFltrEntryActAction is set to 'forwardEsiL2' by the system. Note that the value of tIPvXFltrEntryActEsi is silently cleared by the system if the value of tIPvXFltrEntryActAction is set to any value other than 'forwardEsiL2' or 'forwardEsiL3'.