Complete Protocol dictionary, glossary and reference

DRIP: Duplicate Ring Protocol

Duplicate Ring Protocol (DRIP), a Cisco protocol, runs on Cisco routers and switches that support Virtual LAN networking, and is used to identify active Token Ring VLANs. DRIP information is used for all-routes explorer filtering and detecting the configuration of duplicate Token ring Concentrator Relay Function (TrCRF) across routers and switches, which would cause a TrCRF to be distributed across ISL trunks. DRIP sends advertisements to a multicast address so the advertisements are received by all neighboring devices. The advertisement includes VLAN information for the source device only.

Standard Organization

Cisco

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