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Cory_O's avatar
Cory_O
Icon for Cirrus rankCirrus
Apr 26, 2024

BIG-IP DNS: Check Status Of Multiple Monitors Against Pool Member

Good day, everyone!

 

Within the LTM platform, if a Pool is configured with "Min 1 of" with multiple monitors, you can check the status per monitor via tmsh show ltm monitor <name>, or you can click the Pool member in the TMUI and it will show you the status of each monitor for that member.  I cannot seem to locate a similar function on the GTM/BIG-IP DNS platform.  We'd typically use this methodology when transitioning to a new type of monitor, where we can passively test connectivity without the potential for impact prior to removing the previous monitor.

 

Does anyone have a way through tmsh or the TMUI where you can check an individual pool member's status against the multiple monitors configured for its pool?

 

Thanks, all!

BIGIP DNS
gtm
GTM DNS
monitor
pool
  • F5_Design_Engineer's avatar
    F5_Design_Engineer
    Icon for MVP rankMVP
    Apr 27, 2024

    Hi Cory,

     

    Try this for your scenario:

     

    tmsh show gtm pool a members detail | grep  -i -e "pool\|gtm\|reason"

    or if need more details use this:

     

    tmsh show gtm pool a all detail | grep -i -e 'gtm\|pool\|member\|availability\|state\|reason\|destination\|utime\|member\|vip'

     

    You can modify it according to your requirement.

    The output will be like this


    ============================================================================

    tmsh show gtm pool a members detail | grep  -i -e "pool\|gtm\|reason"


    Gtm::Pool::A Test-rule
      Reason       : Available
      | Gtm::Pool Member: Test_proxy-rule:A Test_Box10_Test2_a_8080:10.10.10.39
      |   Reason       : Available
      | Gtm::Pool Member: Test_proxy-rule:A Test_Box10_Test2_b_8080:10.10.10.41
      |   Reason       : Available
      | Gtm::Pool Member: Test_proxy-rule:A Test_Box10_Test2_c_8080:10.10.10.40
      |   Reason       : Available
      | Gtm::Pool Member: Test_proxy-rule:A Test_Box20_Test2_a_8080:10.10.11.39
      |   Reason       : Available
      | Gtm::Pool Member: Test_proxy-rule:A Test_Box20_Test2_b_8080:10.10.11.41
      |   Reason       : Available
      | Gtm::Pool Member: Test_proxy-rule:A Test_Box20_Test2_c_8080:10.10.11.40
      |   Reason       : Available
    Gtm::Pool::A test_wideIp
      Reason       : No enabled pool members available
      | Gtm::Pool Member: test_wideIp:A ptetest_wideIp-primary:10.10.10.36
      |   Reason       :  Monitor /Common/gateway_icmp from 10.x.24y.13 : state: timeout
      | Gtm::Pool Member: test_wideIp:A test_wideIp-primary:10.10.10.242
      |   Reason       :  Monitor /Common/gateway_icmp from 10.10.10.13 : state: timeout
    Gtm::Pool::A test_wideIp.USA
      Reason       : Available
      | Gtm::Pool Member: test_wideIp.USA:A Bostonc.USA:Bostonc.USA
      |   Reason       : Available
      | Gtm::Pool Member: test_wideIp.USA:A Bostone.USA:Bostone.USA
      |   Reason       : Available
    Gtm::Pool::A Amazon_fileshare
      Reason       : No enabled pool members available
      | Gtm::Pool Member: Amazon_fileshare:A pteAmazon_fileshare-primary:10.11.12.102
      |   Reason       :  Monitor /Common/gateway_icmp from 10.20.27.23 : state: timeout
      | Gtm::Pool Member: Amazon_fileshare:A Amazon_fileshare-primary:10.10.11.12
      |   Reason       :  Monitor /Common/gateway_icmp from 10.28.247.23 : state: timeout
    Gtm::Pool::A Test_PRD
      Reason       : Available
      | Gtm::Pool Member: Test_PRD:A wtg_M_VIP:10.10.10147
      |   Reason       :  Monitor /Common/tcp from 10.28.247.10 : state: connect failed
      | Gtm::Pool Member: Test_PRD:A wtg_STest_USA_VIP:10.26.17.26
      |   Reason       : Available
    Gtm::Pool::A Test_USA-vip
      Reason       : No enabled pool members available
      | Gtm::Pool Member: Test_USA-vip:A Test_USA-vip-mTest_USA:10.12.3.27
      |   Reason       :  Monitor /Common/tcp from 10.28.247.10 : state: timeout
      | Gtm::Pool Member: Test_USA-vip:A Test_USA-vip-sTest_USA:10.16.9.27
      |   Reason       :  Monitor /Common/tcp from 10.28.27.10 : state: timeout: disabled directly
    Gtm::Pool::A DFlipcart_dev
      Reason       : Available
      | Gtm::Pool Member: DFlipcart_dev:A DFlipcart_dev_bck:10.16.25.21
      |   Reason       :  Monitor /Common/http-head-DFlipcart-api-diagnostics-ishealthy from 10.18.27.10 : connect: timeout search result false: disabled
      | Gtm::Pool Member: DFlipcart_dev:A DFlipcart_dev_bck_new1:10.16.25.21
      |   Reason       : Available
      | Gtm::Pool Member: DFlipcart_dev:A DFlipcart_dev_bck_new:10.10.150.55
      |   Reason       :  Monitor /Common/none from <unknown> : no reply from big3d: timed out: disabled directly
      | Gtm::Pool Member: DFlipcart_dev:A DFlipcart_dev_pri:10.12.14.33
      |   Reason       : Available: disabled directly
      | Gtm::Pool Member: DFlipcart_dev:A DFlipcart_dev_pri_new:10.12.20.21
      |   Reason       :  Monitor /Common/http-head-DFlipcart-api-diagnostics-ishealthy from 10.28.247.10 : connect: protocol mismatch search result false
    Gtm::Pool::A DFlipcart_prod
      Reason       : Available
      | Gtm::Pool Member: DFlipcart_prod:A /PROD/vs_wb_DFlipcart_prd:Test2_LTMs
      |   Reason       : Available
      | Gtm::Pool Member: DFlipcart_prod:A DFlipcart_sTest_USA:10.10.13.14

    ============================================================================

     

    Here are many more commands for other purpose i keep trying and experimenting, for that you have to be good in GREP :

     

    The following command will find pools with a return to DNS option and print the name of the pools.

    tmsh -c 'cd /; list gtm pool recursive all-properties one-line' | awk '/return-to-dns/{print $4}'

    My Other GTM master Commands which i use frequently and keep customizing them based on the requirement

    My Other GTM master Commands you can try to get more results of your choice

    bash mode

    netstat -na |grep 4353

    tmsh list /gtm server all

    tmsh list gtm wideip a one-line
    tmsh list gtm wideip aaaa one-line
    tmsh show gtm wideip a detail
    tmsh show gtm wideip a pools
    tmsh show gtm wideip a all

    tmsh show gtm listener
    tmsh show gtm listener all-properties

    tmsh show gtm pool a detail
    tmsh show gtm pool a detail field-fmt
    tmsh show gtm pool a members detail
    tmsh show gtm pool a members fireld-fmt
    show gtm pool a members field-fmt server

     

     

    tmsh show gtm pool a members detail | grep -i -e Gtm::Pool::A | grep -i -e 'GTM\|Pool' | grep -i -e 'GTM\|Virtual'

    tmsh show gtm wideip a all detail | grep -i -e 'wideip\|Destination'

     show gtm pool a members detail | grep -i -e 'GTM\|Virtual'

     tmsh show gtm pool a members detail | grep -i -e 'GTM\|Virtual'

     

    tmsh show gtm pool a members detail | grep -i -e 'GTM\|Virtual' |  grep -i -e  monitor

     

    tmsh show gtm pool a members detail | grep -i -e 'GTM\|Virtual' |  grep  -i -e "pool\|gtm\|reason"

     

    tmsh show gtm pool a members detail | grep  -i -e "pool\|gtm\|reason"

     

    tmsh show gtm pool a members detail | grep -i -e 'GTM\|Virtual' |  grep  -i -e "pool\|gtm\status\|reason"

    tmsh show gtm pool a members detail | grep -i -e 'GTM\|Virtual' |  grep  -i -e "reason"

    tmsh show gtm pool a members detail | grep -i -e 'GTM\|Virtual' |  grep  -i -e "pool\|gtm\|reason"

    tmsh show gtm pool a members detail | grep -i -e 'GTM\|Virtual'  |  grep  -i -e -r  “reason"

    list ltm pool members | grep '^ltm\|:\|priority'

    tmsh show gtm pool a members detail | grep ‘^gtm\|:\|reason’

     

     tmsh show gtm pool a members detail grep monitor

      tmsh show gtm pool a members detail | grep -i -e  monitor

    tmsh show gtm pool a members detail | grep -i -e 'GTM\|Virtual' |  grep -i -e  monitor

    tmsh show gtm pool a members detail | grep -i -e 'GTM\|Pool' |  grep -i -e  monitor

    tmsh show gtm pool a members detail | grep -i -e

      tmsh show gtm pool a members detail | grep -e -i  “Gtm\Pool” | grep -i -e "pool\|gtm\|reason"

     

    tmsh show gtm pool a members detail | grep -i -e " pool\|destination\|reason"

    tmsh show gtm pool a members detail | grep -i -e 'GTM\|Virtual'

    tmsh show gtm pool a members detail | grep -i -e 'GTM\|Pool' | grep -i -e 'GTM\|Virtual' | grep -i -e " pool\|destination\|reason"

    tmsh show gtm pool a members detail | grep -i -e 'GTM\|Pool' | grep -i -e 'GTM\|Virtual' | grep -i -e " reason"

     

    tmsh show gtm pool a members  field-fmt | grep -i -e 'GTM\|Virtual' | grep -i -e " pool\|destination\|reason"

    tmsh show gtm pool a members  field-fmt | grep -i -e 'GTM\|Virtual' | grep -i -e " pool\|destination\|reason"

     

    tmsh show gtm pool a members  field-fmt | grep -i -e “GTM\|Pool”

    tmsh show gtm pool a members detail grep

    tmsh show gtm server all detail
    tmsh show gtm server detail virtual-servers
    tmsh show gtm server detail virtual-servers field-fmt
    tmsh list gtm server addresses virtual-servers

    tmsh show gtm server detail
    tmsh show gtm server detail all

    tmsh list net self all-properties
    tmsh list gtm listener all-properties
    tmsh list gtm listener vlans

    tmsh show sys ip-address all-properties

    tmsh show gtm wideip A all detail | grep 'WideIp\|Destination'

    tmsh show gtm all detail | grep -e -i Gtm::Server -e "Server"

    tmsh show gtm wideip a all detail | grep -e -i -n NAME_OF_YOUR_GTM_SERVE

    tmsh show gtm wideip a all detail | grep -i -e Gtm::Pool::A grep -i -e 'Pool\|Destination'

    tmsh show gtm wideip a all detail | grep -i -e Gtm::Pool::A grep 'Pool\|Destination'

    tmsh show gtm wideip a all detail | grep -i -e Gtm::Pool::A | grep -i -e 'Pool\|Destination' grep -i -e 'Pool\|Destination'

    tmsh show gtm wideip a all detail | grep -i -e 'wideip\|Destination' grep -i -e Gtm::Pool::A grep -i -e 'Pool\|Destination'

    only one pipe

    tmsh show gtm wideip a all detail | grep -i -e 'wideip\|Destination' grep -i -e Gtm::Pool::A grep -i -e 'Pool\|Destination'

    tmsh show gtm wideip a all detail | grep -i -e 'wideip\|Destination' grep -i -e 'Pool\|Destination' grep -i -e NAME_OF_YOUR_GTM_SERVER

    tmsh show gtm wideip a all detail | grep -i -e 'wideip\|Destination' grep -i -e 'Pool\|Destination' grep -i -e NAME_OF_YOUR_GTM_SERVER

    tmsh show gtm wideip a all detail | grep -i -e '^gtm' grep -i -e 'wideip\|Destination' grep -i -e 'Pool\|Destination' grep -i -e 'NAME_OF_YOUR_GTM_SERVER$'

    tmsh show gtm wideip a all detail | grep -i -e '^gtm' grep -i -e 'wideip\|Destination' grep -i -e 'Pool\|Destination' | grep -i -e '^NAME_OF_YOUR_GTM_SERVER$' = No results

    tmsh show gtm wideip a all detail | grep -i -e '^gtm' grep -i -e 'wideip\|Destination' grep -i -e 'Pool\|Destination' grep -i -e '\^NAME_OF_YOUR_GTM_SERVER$'

    tmsh show gtm wideip a all detail | grep -i -e '^gtm' grep -i -e 'wideip\|Destination' grep -i -e '\^NAME_OF_YOUR_GTM_SERVER$'

    tmsh show gtm wideip a all detail | grep -i -e '^gtm' grep -i -e '^NAME_OF_YOUR_GTM_SERVER$'

    tmsh show gtm wideip a all detail | grep -i -e '^NAME_OF_YOUR_GTM_SERVER$'

    tmsh show gtm wideip a all detail | grep -i -e 'wideip\|Destination' grep -i -e 'Pool\|Destination' grep -i -e '\NAME_OF_YOUR_GTM_SERVER'

    tmsh show gtm wideip a all detail | grep -i -e 'wideip\|Destination' grep -i -e 'Pool\|Destination' grep -e -i Gtm::Server -e "Server" grep -i -e '\NAME_OF_YOUR_GTM_SERVER'

    tmsh show gtm wideip a all detail | grep -i -e 'wideip\|Destination' grep -i -e 'Pool\|Destination' grep -e -i Gtm::Server -e "Server"

    tmsh show gtm wideip a all detail | grep -i -e 'wideip\|Destination' grep -i -e 'Pool\|Destination' grep -e -i Gtm::Server -e "Server" grep -i -e '$NAME_OF_YOUR_GTM_SERVER'

    tmsh show gtm wideip a all detail | grep -i -e 'wideip\|Destination' grep -i -e 'Pool\|Destination' grep -e -i Gtm::Server -e "Server" grep -i -e '$*NAME_OF_YOUR_GTM_SERVER' -C 2

    tmsh show gtm wideip a all detail | grep -i -e '$*NAME_OF_YOUR_GTM_SERVER' -C 1

    tmsh show gtm wideip a all detail | grep -i -e '$*15*' -C 1

    tmsh show gtm wideip a all detail | grep -i -e '$*gtm*' -C 3 grep -i -e '$*NAME_OF_YOUR_GTM_SERVER'


    tmsh show gtm wideip a all detail | grep -i -e '$*gtm*' grep -e -i NAME_OF_YOUR_GTM_SERVER

     

    HTH

    🙏

     

    • Cory_O's avatar
      Cory_O
      Icon for Cirrus rankCirrus
      Apr 29, 2024

      Thank you for your response F5_Design_Engineer; I appreciate it!  Sadly, it seems the system is limited in it's response.

       

      The typical output of "tmsh show gtm pool a %MY_POOL% members detail" only shows a simple up/down status with a reason of one monitor.  What I'm looking for is to track the status of MULTIPLE independent monitors against a Pool member, when the monitor is configured as a "min 1 of" several monitors.

       

      The use case would be to be able to test a new monitor against a pool in parallel with what exists in production, all the while not impacting production with the test.  As I mentioned, the LTM platform allows you to do this by running a tmsh show against a specific monitor, but in gtm it appears this is not an option.

       

      I hope that helps to explain it better, and I really appreciate your assistance!

       

      -C