hello everyone.
i have a strange problem on an MX240 with MPC 3D 16x 10GE.
this router run full internet table feed and 1 IXP with remote EVPN customer that share IXP port remotely.
i know for sure that this FPC at 100% derive from EVPN, but i don't understand what is the culprit.
if for example i reduce the number of interface-mac-ip number the fpc cpu slow down but not stop.
after change from evpn to vpls back and forth the cpu stay at 36% for 1 day, and after this it start again with 100% every 2 minutes for a short span.
router is working and traffic goes without problems.
here some show:
Temp CPU Utilization (%) CPU Utilization (%) Memory Utilization (%)
Slot State (C) Total Interrupt 1min 5min 15min DRAM (MB) Heap Buffer
0 Empty
1 Online 45 100 10 86 64 60 2048 53 31
2 Empty
after some min or less then a minute
Temp CPU Utilization (%) CPU Utilization (%) Memory Utilization (%)
Slot State (C) Total Interrupt 1min 5min 15min DRAM (MB) Heap Buffer
0 Empty
1 Online 45 35 4 78 70 63 2048 53 31
2 Empty
Routing Engine status:
Slot 0:
Current state Master
Election priority Master
Temperature 39 degrees C / 102 degrees F
CPU temperature 36 degrees C / 96 degrees F
DRAM 32699 MB (32768 MB installed)
Memory utilization 10 percent
5 sec CPU utilization:
User 1 percent
Background 0 percent
Kernel 3 percent
Interrupt 0 percent
Idle 95 percent
1 min CPU utilization:
User 3 percent
Background 0 percent
Kernel 3 percent
Interrupt 0 percent
Idle 94 percent
5 min CPU utilization:
User 3 percent
Background 0 percent
Kernel 3 percent
Interrupt 0 percent
Idle 94 percent
15 min CPU utilization:
User 3 percent
Background 0 percent
Kernel 2 percent
Interrupt 0 percent
Idle 95 percent
Model RE-S-1800x4
Serial ID 9016065912
Start time 2023-07-02 22:01:38 CEST
Uptime 358 days, 2 hours, 7 minutes, 9 seconds
Last reboot reason Router rebooted after a normal shutdown.
Load averages: 1 minute 5 minute 15 minute
0.61 0.42 0.36
otal system uptime 358+02:34:28, (30939958725 ms), 28943001166 thread dispatches
CPU load is 100% (1 second), 100% (5 second)
61% (10 second), 65% (1 minute)
Total interrupt time 1034305748 (ms)
CPU Name Time(ms)
57% Idle 17709146115
39% Threads 12197016414
3% ISR 1034305748
3% Level 1 1032924512
0% Level 2 1380763
0% Level 3 472
Last Long Running Thread Event time 100 ms
CPU Name Time(ms) Count
2% Level 1 2 141
Top Thread:
pid = 101
name = Cassis Free Timer
time = 3969687554 ms
cpu = 12%
CPU hog check enabled
Max run time 2500
PID PR State Name Stack Use Time (Last/Max/Total) cpu
--- -- ------- --------------------- --------- ---------------------
2 L running Idle 320/2056 0/0/17709147440 ms 57%
101 M asleep Cassis Free Timer 1192/4104 0/2/3969694971 ms 12%
81 M asleep L2ALM Manager 4208/8192 0/1/2541238273 ms 8%
119 L asleep LU Background Service 1688/4104 0/1/1358426794 ms 4%
45 M asleep SFP 1584/4096 0/34/602377277 ms 1%
126 L asleep LKUP ASIC UCODE Rebalance Service 1840/4096 1/13/341700003 ms 1%
118 L asleep MQ Chip Stats 704/4104 0/1/338228277 ms 1%
121 L asleep MQ Chip Stats 704/4104 0/1/332847597 ms 1%
123 L asleep MQ Chip Stats 704/4104 0/1/332404882 ms 1%
125 L asleep MQ Chip Stats 704/4096 0/1/332193363 ms 1%
no kr t queue
please let me know if someone can help me to pin point the issue. the l2vpn or evpn terminate on IXP facing interface.
thanks a lot
BR
G.