The value of tmnxMsdpPeerMsgRcvRateTime specifies the time in seconds
that together with tmnxMsdpPeerMsgRcvRate defines the number of
MSDP messages (including source active messages) that are read from
the TCP session within the configured number of seconds.
By default, no MSDP messages are read from the TCP session
and this is specified by the value 0.
Once the number of MSDP packets defined in tmnxMsdpPeerMsgRcvRateThd
have been processed the rate of all other MSDP packets is rate
limited by no longer accepting messages from the TCP session until
tmnxMsdpPeerMsgRcvRateTime seconds have elapsed.