Hardware Statistics Not Populated on Hyper-V Palo Alto Networks VM-Series from Microsoft Driver Support Limitation
10874
Created On 04/27/19 19:27 PM - Last Modified 05/06/19 15:29 PM
Symptom
While working on Hyper-V Palo Alto Networks VM-Series, you might run into issues where the hardware level interface statistics are not available.
Environment
Hyper-V Palo Alto Networks VM-Series
Cause
Statistics are not populated due to current Microsoft limitation on Hyper-V. It can become obvious in certain cases where the customer is trying to use SNMP to poll the interface statistics and would see the returned value as zero. This issue is ONLY for Hyper-V Palo Alto Networks VM-Series and it is currently considered a limitation with no workarounds available.
NOTE: Sub-interfaces and tunnel interfaces are not affected by this issue.
admin@Hyper-VM-80.130> show interface ethernet1/1 -------------------------------------------------------------------------------- Name: ethernet1/1, ID: 16 Link status: Runtime link speed/duplex/state: auto/auto/up Configured link speed/duplex/state: auto/auto/auto MAC address: Port MAC address 00:15:5d:41:0e:01 Operation mode: layer3 Untagged sub-interface support: no -------------------------------------------------------------------------------- Name: ethernet1/1, ID: 16 Operation mode: layer3 Virtual router default Interface MTU 1500 Interface IP address: 192.168.36.2/24 Interface management profile: MGMT-profile ping: yes telnet: yes ssh: yes http: yes https: yes snmp: yes response-pages: yes userid-service: yes Service configured: Zone: trust, virtual system: vsys1 Adjust TCP MSS: no ------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Physical port counters read from MAC: -------------------------------------------------------------------------------- rx-broadcast 0 rx-bytes 0 rx-multicast 0 rx-unicast 0 tx-broadcast 0 tx-bytes 0 tx-multicast 0 tx-unicast 0 ------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Detailed physical port counters read from MAC: -------------------------------------------------------------------------------- No detailed counters found ------------------------------------------------------------------------------- Hardware interface counters read from CPU: -------------------------------------------------------------------------------- bytes received 8126248 bytes transmitted 30552 packets received 70703 packets transmitted 376 receive incoming errors 0 receive discarded 0 receive errors 0 packets dropped 0 ------------------------------------------------------------------------------- Logical interface counters read from CPU: -------------------------------------------------------------------------------- bytes received 5411453 bytes transmitted 30552 packets received 53798 packets transmitted 376 receive errors 0 packets dropped 6093 packets dropped by flow state check 277 forwarding errors 0 no route 5806 arp not found 107 neighbor not found 0 neighbor info pending 0 mac not found 0 packets routed to different zone 0 land attacks 0 ping-of-death attacks 0 teardrop attacks 0 ip spoof attacks 0 mac spoof attacks 0 ICMP fragment 0 layer2 encapsulated packets 0 layer2 decapsulated packets 0 --------------------------------------------------------------------------------
Resolution
This is a current limitation on Hyper-V Palo Alto Networks VM-Series and the observations are expected.