Nimbostratus
Cirrostratus
1) I think 'no listen' denials are a count of packets (syn's?) received on an IP:port that no virtual server or other object is configured to listen on. So I don't think it's necessarily relevant to look at the number of successful connections to an IP:port TMM is listening on. Regardless, you can get a count of connections accepted since the stats were reset by looking at the 'b tmm show all' output:
b tmm show
TMM 0.0 process 7118 on CPU 0 TMM id 0 Total TMMs = 1
| client (cur, max, limit, tot) = (1, 27459, 0, 236420) <---- connections
| client (pkts,bits) in = (1.145M, 644.2M), out = (911943, 592.7M)
| server (cur, max, limit, tot) = (1, 1, 0, 49)
| server (pkts,bits) in = (5725, 2.152M), out = (0, 0)
| TMM cycles (total, idle, sleep) = (76.17T, 11.05T, 63.88T)
| denials (maint, addr full, serv full) = (0, 0, 0)
| (no serv, no listen, no mem, no lic) = (0, 30105, 0, 0)
2) You're correct: M stands for a million, G stands for billion, T stands for a trillion (packets, bits, bytes or whatever the unit is for the specific stat you're looking at).
http://en.wikipedia.org/wiki/SI_prefix
3) Again, the 'b tmm show all' output shows the total number of clientside and serverside connections received. If rxooseg is "the number of connections that received an out of order TCP segment" you could compare that to the sum of these two connection totals.
Aaron