This carries the human-readable name of the encapsulation tunnel that triggered a notification, sparing the admin from having to translate a bare numeric tunnel index into something meaningful while triaging an alert. Because trap floods during a network event can involve many tunnels at once, having the name inline lets an admin immediately recognize a business-critical tunnel among a wall of alerts. For example, seeing the name vip-customer-primary-lsp in the trap detail lets the admin prioritize that alert over a dozen others for lower-priority tunnels.