vRtrLdpAdjBackoffTable is a read-only table which augments
the vRtrLdpHelloAdjTable. The purpose of this table is to
keep backoff information about the LDP Hello Adjacencies on
the virtual router.
Use of AUGMENTS clause implies a one-to-one dependent
relationship between the base table, vRtrLdpHelloAdjTable,
and the augmenting table vRtrLdpAdjBackoffTable. This in
effect extends the vRtrLdpHelloAdjTable with additional
columns. Creation or deletion of a row in the
vRtrLdpHelloAdjTable results in the same fate for the row
in the vRtrLdpAdjBackoffTable.