The value of tmnxMsdpPeerGrpPeerMsgRcvRtTime specifies the time
in seconds that together with tmnxMsdpPeerGrpPeerMsgRcvRt
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 tmnxMsdpPeerGrpPeerMsgRcvRtThd
have been processed the rate of all other MSDP packets is rate
limited by no longer accepting messages from the TCP session until
tmnxMsdpPeerGrpPeerMsgRcvRtTime seconds have elapsed.