Each entry defines an IP Reachable Address to a network, subnetwork, or host. Each IP Reachable Address may have multiple entries in the table, one for each equal cost path to the reachable address. Dynamically created rows MUST survive an agent reboot. Implementers need to be aware that if the total number of elements (octets or sub-identifiers) in isisIPRADestr, isisIPRADestPrefixLen, and isisIPRANextHopIndex is too great, then OIDs of column instances in this table will have more than 128 subidentifiers and cannot be accessed using SNMPv1, SNMPv2c, or SNMPv3.