PA-5450 由于 path_monitor 具有意外的高可用性故障转移HB失败

• 具有大会话的设备可能会突然触发内部路径监控故障，从而导致HA故障转移。
• mp-monitor.log (更少的 mp-log mp-monitor.log ) 显示 core1 (DP0) 处于高负载状态。所有其他DP内核正常。

CPU load (%) during last 60 seconds:
   core 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
       *  5 4 4 4 3 4 3 3 3 4 4 4 3 3 3
       *  6 5 4 4 4 4 4 4 4 4 4 4 4 4 4
       *  9 7 6 6 6 6 6 6 6 6 6 6 6 6 6
       *  12 9 8 8 8 8 8 8 8 8 8 8 8 8 8
       *  13 10 9 9 9 9 9 9 9 9 8 8 9 9 9
       *  11 9 8 8 7 8 8 8 8 8 8 8 8 8 8
       *  9 7 6 6 6 6 6 6 6 6 6 6 6 6 6
       * 10 7 6 6 7 7 7 7 7 6 7 7 7 7 6
       * 12 9 8 8 8 8 8 8 8 8 8 8 8 8 8
       * 24 9 8 8 8 8 8 8 8 8 8 8 8 8 8
       * 70 9 8 9 9 9 9 9 8 9 9 9 8 9 9
       * 100 8 8 8 8 8 8 8 8 8 8 8 8 8 8
       * 100 8 8 8 8 8 8 8 8 8 8 8 8 8 8
       * 100 9 9 9 9 9 9 9 9 9 9 9 9 9 9
       * 100 13 12 12 12 13 12 13 12 13 12 12 12 12 13
       * 100 10 10 10 10 11 10 11 10 11 10 10 11 10 10
       * 100 10 10 10 10 10 10 10 10 10 10 10 10 10 10
       * 100 10 10 10 10 10 10 10 10 10 10 10 10 10 10 

• Firewall 系统日志中出现以下错误的故障转移 (显示日志系统).发生故障转移时，它会影响所有DPC和NC牌。

 HA Slot 4 down; failure
 HA Slot 3 down; failure
 HA Slot 2 down; failure
 HA Slot 1 down; failure
 Chassis Master Alarm: HA-event
 slot3dp0-path_monitor HB failures seen, triggering HA DP down
 internal packet path monitoring failure, rastarting slot 5
 link-monitor-down

• 全局计数器（显示柜台全球) 显示缺少的轮询间隔。Poll1 与 Poll2 之间丢失的数据包

Poll 1
flow_path_monitor_rx_from_mp 980489 27 info flow mgmt Path monitor packet received from MP
flow_path_monitor_tx_to_mp 980419 27 info flow mgmt Path monitor packet sent to MP
flow_path_monitor_tx_to_fe 439752 9 info flow mgmt Path monitor packet sent to FE
flow_path_monitor_rx_from_fe 439682 9 info flow mgmt Path monitor packet received from FE
Poll 2:
flow_path_monitor_rx_from_mp 980559 33 info flow mgmt Path monitor packet received from MP + 70
flow_path_monitor_tx_to_mp 980479 33 info flow mgmt Path monitor packet sent to MP + 60
flow_path_monitor_tx_to_fe 439782 11 info flow mgmt Path monitor packet sent to FE + 30
flow_path_monitor_rx_from_fe 439702 11 info flow mgmt Path monitor packet received from FE + 20

• 帕洛阿尔托 5400 系列 firewall
• PANOS 10.1.6 或以下。
• PANOS 10.2.2 或以下。

1. 问题已修复PAN-OS10.2.3、10.1.7、10.1.6-h4 下 PAN-192551
2. 升级到最新首选版本解决问题。

PA-5450 前面板