On DSL network we are getting some complaints from customer which are related to PPPoE down, After restarting the DSL modem at customer problem solved and link functional properly.
here i am mentioning the core network scenerio in brief.
Backbone router--> [Juniper ERX devie(one leg is conneced to backbone router as uplink, another leg to L3 agg switch for customer ]--> L3 Switch as aggregation --> L3 Switch as Access switch from where different DSL nodes are connected.
NOte :- Here i am not mentioning all necessary server in network.
Please help me to trace the all possible cause with solution.