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ab_f5_admin_263
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Nov 14, 2016

A virtual server imported from a physical f5 to a virtual f5 shows no statistics.

I exported the server and pool configuration from the physical f5 systems and imported it to the virtual instance. The application (web site) is online, but I cannot see any traffic like Bits In/Out in the virtual F5 web interface. Other servers on this Virtual F5 use the same settings, yet they report traffic. A difference is that the previous virtual servers were entered manually to the Virtual F5. Even when I run tcpdump on the external IP Address of the newly imported server I cannot get any traffic logged.

I'm using this command to watch for traffic.

tcpdump -i vlan_external -nnn -p -e src host 128.0.0.1 or dst host 128.0.0.1 

This does show some thing, but nothing like the http downloads I expected.

tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on vlan_external, link-type EN10MB (Ethernet), capture size 96 bytes
10:00:00.854269 00:23:00:00:00:81 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806) 
length 56: arp who-has 128.0.0.1 tell 128.0.0.245

So, I thought the tcpdump command does capture traffic related to the server IP, however there is nothing but these ARP requests repeated. Even though I load the website pages many times.

Likewise, in the F5 web ui, all the numbers related to the virtual server are just 0, even after several days online for the main web server.

If it matters, there is no actual balancing going on for these small web sites. They are just one vm each.

Do I miss any additional configuration that must occur between the physical F5 and the Virtual F5 when moving a server and pool over?

2 Replies

  • Since I think it is not mentioned: The server was exported like so on the physical F5:

    list ltm virtual servername
    list ltm pool serverpool
    

    Then imported to the Virtual F5 like

    load sys config from-terminal merge (verify)
    
  • Please accept my apologies for cluttering up this forum with this inquiry.

     

    I just went back to solve this and realized all the time I was checking the statistics, I was monitoring the Standby F5.

     

    If you can delete this question. Please do.