tmsh show snatpool [snatpool name]
Sample output:
---------------------------------
Ltm::SNAT Pool: snatpool_test
---------------------------------
Traffic ServerSide
Bits In 110.0K
Bits Out 2.4M
Packets In 225
Packets Out 275
Current Connections 0
Maximum Connections 10
Total Connections 25
You'll also get an error in /var/log/ltm if you reach port exhaustion:
01010201:2: Inet port exhaustion on (floating_self-ip) to (pool_member_ip):(port) (proto 6)
Please see the following DC threads for more insight:
https://devcentral.f5.com/questions/snat-automap-inet-port-exhaustion-and-self-ips
https://devcentral.f5.com/questions/snat-pool-port-exhaustion-to-irule-or-not-to-irule