BITSTRING BASED PATH/DOMAIN MTU DISCOVERY IN BIT INDEX EXPLICIT REPLICATION (BIER) ENVIRONMENT
Publication Date: 2016-Sep-01
The IP.com Prior Art Database
Each node within a Bit Index Explicit Replication (BIER) domain advertises the link maximum transmission unit (MTU) through the Internal Gateway Protocol (IGP). Each Bit Forwarding Ingress Router (BFIR) calculates the lowest link MTU within the BIER domain, create a virtual BIER interface (BIERvif) and assign the calculated MTU as an egress MTU. This interface is the default forwarding interface for BIER encapsulated packets, and is referred to as the Primary BIERvif.