The maximum number of hold flow entries are limited on vrouter. To check or set current flow hold limit setting, you can use the vrouter command.
To check current flow hold limit, use the 'vrouter --info' command:
'vrouter --info'
root@comp106:~# vrouter --info vRouter module version 3.2.8.0-dkms (Built by root@comp106 on Tue Mar 13 13:27:04 PDT 2018) Startup parameters Interfaces limit 4352 VRF tables limit 4096 NextHops limit 65536 MPLS Labels limit 5120 Bridge Table limit 262144 Bridge Table Overflow limit 53248 Flow Table limit 524288 Flow Table overflow limit 105472 Mirror entries limit 255 Runtime parameters Performance tweaks GRO 1 Segmentation in software 1 TCP MSS adjust settings TCP MSS on packets from VM 1 TCP MSS on packet sent to VM 1 RPS settings RPS after pulling inner hdr (perfr1) 0 RPS after GRO on pkt1 (perfr2) 1 RPS from phys rx handler (perfr3) 1 Pull inner header (faster version) 1 CPU to send pkts to, if perfr1 set 0 CPU to send pkts to, if perfr2 set 0 CPU to send pkts to, if perfr3 set 0 Other settings NIC cksum offload for outer UDP hdr 0 Flow hold limit: 8192 MPLS over UDP globally 0 Used Flow entries 12 Used Over Flow entries 0 Used Bridge entries 111 Used Over Flow bridge entries 0
To modify flow hold limit, use the 'vrouter --flow_hold_limit <new limit> ' command:
'vrouter --flow_hold_limit <new limit> '
root@comp106:~# vrouter --flow_hold_limit 1024 root@comp106:~# vrouter --info vRouter module version 3.2.8.0-dkms (Built by root@comp106 on Tue Mar 13 13:27:04 PDT 2018) Startup parameters Interfaces limit 4352 VRF tables limit 4096 NextHops limit 65536 MPLS Labels limit 5120 Bridge Table limit 262144 Bridge Table Overflow limit 53248 Flow Table limit 524288 Flow Table overflow limit 105472 Mirror entries limit 255 Runtime parameters Performance tweaks GRO 1 Segmentation in software 1 TCP MSS adjust settings TCP MSS on packets from VM 1 TCP MSS on packet sent to VM 1 RPS settings RPS after pulling inner hdr (perfr1) 0 RPS after GRO on pkt1 (perfr2) 1 RPS from phys rx handler (perfr3) 1 Pull inner header (faster version) 1 CPU to send pkts to, if perfr1 set 0 CPU to send pkts to, if perfr2 set 0 CPU to send pkts to, if perfr3 set 0 Other settings NIC cksum offload for outer UDP hdr 0 Flow hold limit: 1024 MPLS over UDP globally 0 Used Flow entries 12 Used Over Flow entries 0 Used Bridge entries 111 Used Over Flow bridge entries 0