Juniper Networks, Inc.
Maintaining a DNS store for control plane restart or failover

Abstract:

A network device may store domain name system (DNS) information in a DNS file in a first DNS store of a first control plane component included in the network device, the DNS information being associated with a plurality of DNS entries stored in a first DNS memory of the first control plane component; may transfer, based on storing the DNS information in the DNS file in the first DNS store, a copy of the DNS file from the first DNS store to a second DNS store of a second control plane component included in the network device, the copy of the DNS file including the DNS information associated with the plurality of DNS entries; and may transfer, based on detecting an event associated with the first control plane component, the DNS information from the copy of the DNS file to a second DNS memory of the second control plane component.