ExtremeSwitching (EXOS)

  • 1.  Feature similar to Cisco IP SLA and track

    Posted 09-18-2016 12:38
    Hi I new in Extreme stuff. Pls advise how can I configure to change default route based on ping check. Something similar to cisco ip lsa and tracking. Flow redirect doesn't meet my requirements , I need to change default route because it is propagated by ospf to others switches. Thanks in advance


  • 2.  RE: Feature similar to Cisco IP SLA and track

    Posted 09-18-2016 15:10
    You can use the keyword "protection ping"

    e.g.

    configure iproute add 100.0.0.0/24 1.2.3.4 protection ping
    configure iproute add 100.0.0.0/24 1.2.3.5 protection ping

    if both gateways anwer you have a l3 load balancing.

    Regards
    André


  • 3.  RE: Feature similar to Cisco IP SLA and track

    Posted 09-18-2016 22:18
    The "ping" protection on a static route is supported in 16.1, 21.1 or later. You can modify parameters (interval and number of miss) for the ping protection with the following command.

    # configure iproute protection ping interval


  • 4.  RE: Feature similar to Cisco IP SLA and track

    Posted 09-19-2016 03:32
    If you have an earlier EXOS you can still use upm:

    Below a script, that does similar by disabling an Port to an ISP:

    create upm profile pingtest

    set var primeport 31
    # the port of the primary ISP router
    set var target 10.2.100.100
    # the target IP address used to determine the health of connectivity to the
    # primary ISP
    set var CLI.OUT 0
    ping count 1 vr vr-default $target
    set var pinglist $TCL(split ${CLI.OUT} "\n")
    delete var CLI.OUT
    set var pingrespln $TCL(lsearch -glob $pinglist *received*)
    set var pingresp $TCL(lindex $pinglist $pingrespln)
    set var pingnorcv $TCL(regexp -nocase {0 packets received} $pingresp)
    if ($pingnorcv == 1) then
    disable port $primeport
    create log entry "Failed Uplink "
    disable upm profile pingtest
    endif

    create upm timer pingtest
    configure upm timer pingtest profile pingtest
    configure upm timer pingtest after 1 every 1

    Regards
    André


  • 5.  RE: Feature similar to Cisco IP SLA and track

    Posted 09-19-2016 04:25
    Thank you for responses. I have ExtremeOS 16.1.2.14, protection ping is available from 16.1.3. By the way it isn't meet requirements completly, I want to ping host which I can define. Andre thank you for the script. What in case that route became available?