Forum Discussion
CirrusIssue on connection limit
CirrusHi... definitely not. It's a new service with no iRules, no connection rate limit (setted at 0) and I think no SYN flood protection (it's a standard configuration, non customization). No OneConnect. Applied profiles are fastl4 standard and http profile standard. VS is on 61616 port. No connection exceeded rate limt logs.
I have really no ideas :-(
CumulonimbusAre you using SNAT automap ? If not, try enabling SNAT automap on the VS and retest.
And also check the connection count per-TMM using the following article
K09047561: Viewing the current number of TMM connections from the BIG-IP command line
If this not helps, I would recommend you to open a support ticket to check further.
- romolo82
yes, I have automap.
I'll try to check the connection count per-TMM and I setted a higher value at Default Per Virtual Server SYN Check threshold under System >> Configuration >> Local Traffic: General
- VishnuGatla
Refer the following article and this might help
Let me know what you find from the per-TMM stats.
- romolo82
Hi, thanks a lot. I have this output:
rluciani01@(LTM-D-SERVIZI-01-D-01)(cfg-sync In Sync)(Active)(/Common)(tmos)# show /sys tmm-traffic
-------------------------------------------------
Sys::TMM: 0.0
-------------------------------------------------
TMM Traffic ClientSide ServerSide
Bits In 2.4T 2.4T
Bits Out 487.2G 483.8G
Packets In 1.1G 1.1G
Packets Out 70.3M 69.8M
Current Connections 10 10
Maximum Connections 87 87
Evicted Connections 0 0
Slow Connections Killed 0 0
Total Connections 20.1M 18.9M
Total Requests 1.2K -
Errors
Maintenance Mode 0
Virtual Addr Limit 0
Virtual Server Limit 0
Wrong Address 0
No handler 280.9K
No Staged Handler 0
No license 0
Connection Memory 0
Packets Dropped 0
Packets In Errors 0
Packets Out Errors 0
Connections Redirected 0-------------------------------------------------
Sys::TMM: 0.2
-------------------------------------------------
TMM Traffic ClientSide ServerSide
Bits In 665.4G 663.8G
Bits Out 692.5G 690.5G
Packets In 313.5M 312.1M
Packets Out 135.4M 134.9M
Current Connections 9 9
Maximum Connections 90 90
Evicted Connections 0 0
Slow Connections Killed 0 0
Total Connections 27.0M 25.8M
Total Requests 1.2K -
Errors
Maintenance Mode 0
Virtual Addr Limit 0
Virtual Server Limit 0
Wrong Address 0
No handler 281.1K
No Staged Handler 0
No license 0
Connection Memory 0
Packets Dropped 0
Packets In Errors 0
Packets Out Errors 0
Connections Redirected 0[rluciani01@LTM-D-SERVIZI-01-D-01:Active:In Sync] ~ # tmctl tmm_stat -s slot_id,cpu,client_side_traffic.cur_conns,server_side_traffic.cur_conns
slot_id cpu client_side_traffic.cur_conns server_side_traffic.cur_conns
------- --- ----------------------------- -----------------------------
0 0 10 10
0 2 7 7[rluciani01@LTM-D-SERVIZI-01-D-01:Active:In Sync] ~ # tmctl tmm_stat -s slot_id,cpu,client_side_traffic.cur_conns,server_side_traffic.cur_conns
slot_id cpu client_side_traffic.cur_conns server_side_traffic.cur_conns
------- --- ----------------------------- -----------------------------
0 0 9 9
0 2 11 11[rluciani01@LTM-D-SERVIZI-01-D-01:Active:In Sync] ~ # tmctl tmm_stat -s slot_id,cpu,client_side_traffic.cur_conns,server_side_traffic.cur_conns
slot_id cpu client_side_traffic.cur_conns server_side_traffic.cur_conns
------- --- ----------------------------- -----------------------------
0 0 10 10
0 2 9 9[rluciani01@LTM-D-SERVIZI-01-D-01:Active:In Sync] ~ # tmctl tmm_stat -s slot_id,cpu,client_side_traffic.cur_conns,server_side_traffic.cur_conns
slot_id cpu client_side_traffic.cur_conns server_side_traffic.cur_conns
------- --- ----------------------------- -----------------------------
0 0 10 10
0 2 12 12[rluciani01@LTM-D-SERVIZI-01-D-01:Active:In Sync] ~ # tmctl tmm_stat -s slot_id,cpu,client_side_traffic.cur_conns,server_side_traffic.cur_conns
slot_id cpu client_side_traffic.cur_conns server_side_traffic.cur_conns
------- --- ----------------------------- -----------------------------
0 0 9 9
0 2 10 10
These output are rilevated during simulated calls, but client side always same errors....
