You can configure a limit on the maximum number of SA cache entries that can be stored in the cache database. Once the number of SA cache entries exceeds the pre-configured limit, any newly received cache entries are discarded. You can configure the limit on a per-peer basis. By default, no SA message limit is set. The router can receive an unlimited number of SA entries from an MSDP (Multicast Source Discovery Protocol) peer.
To allow an unlimited number of SA entries, use 0 (zero) as the value for max-sa.