Need to shut down port if remote port does not respond to ICMP

jpmonzonr · ‎04-23-2015

I need to track if an IP is up with ICMP, Source IP: 192.168.249.1 Dest IP: 192.168.249.2 on port FastEthernet fa0/19

I do not understand how the weights work here with the UP or Down Status can you please explain. I modified your commands a bit and this is what I got, can you let me know if I am on the right path or a better way to do it:

track 10 ip sla 10
delay down 10
!
track 19 list threshold weight
object 10 weight 70
threshold weight down 30 up 70
authentication mac-move permit

ip sla 10
icmp-echo 10.13.249.2 source-ip 10.13.249.1
timeout 300
frequency 5
ip sla schedule 10 life forever start-time now
ip sla enable reaction-alerts

event manager applet Remote_Site_Up
event syslog pattern "TRACKING-5-STATE: 19 list threshold weight Down->Up"
action 1.0 cli command "enable"
action 2.0 cli command "config t"
action 3.0 cli command "interface FastEthernet0/19"
action 4.0 cli command "no shut"
action 5.0 cli command "end"
event manager applet Remote_Site_Down
event syslog pattern "TRACKING-5-STATE: 19 list threshold weight Up->Down"
action 1.0 cli command "enable"
action 2.0 cli command "config t"
action 3.0 cli command "interface FastEthernet0/19"
action 4.0 cli command "shut"
action 5.0 cli command "end"

--------------------------

This is the status with the show track command:

Track 10
IP SLA 10 state
State is Up
    1 change, last change 00:29:35
Delay down 10 secs
Latest operation return code: OK
Latest RTT (millisecs) 1
Track 19
List threshold weight
Threshold Weight is Up (70/70)
    2 changes, last change 00:29:34
    object 10 weight 70 Up (70/70)
Threshold weight down 30 up 70

- See more at: https://supportforums.cisco.com/discussion/12302681/eem-event-track-not-supported-version-32#sthash.AfIUIdTa.dpuf

Joe Clarke · ‎04-24-2015

If all you are about is tracking the ICMP reachability (up or down), then just use track 10 in your applets. What you have will be fine. You will see a 10 second delay after ICMP fails before the tracked object will go down, and thus the down applet will trigger.

jpmonzonr · ‎08-26-2015

Hello,

We are trying to use these commands now, we do not have the "event track 1 state down" command on the EEM, what alternative would you recommend?

We only have the following options:

Switch(config-applet)#event ?
application         Application specific event
cli                 CLI event
counter             Counter event
identity            Identity event
interface           Interface event
ioswdsysmon         IOS WDSysMon event
ipsla               IPSLA Event
mat                 MAC address table event
neighbor-discovery Neighbor Discovery event
none                Manually run policy event
oir                 OIR event
routing             Routing event
rpc                 Remote Procedure Call event
snmp                SNMP event
snmp-notification   SNMP Notification Event
snmp-object         SNMP object event
syslog              Syslog event
tag                 event tag identifier
timer               Timer event

The following are the commands we are trying to use for SLA:

ip sla 10

icmp-echo 10.13.246.1

timeout 2000

threshold 2000

frequency 3

ip sla schedule 10 life forever start-time now

track 1 ip sla 10 reachability

delay down 9 up 9

Event manager applet Enlace_down event track 1 state down action 1.0 syslog msg "Problema enlace. Ping failed!" action 2.0 cli command "enable"
action 3.0 cli command "config t"
action 4.0 cli command "interface FastEthernet0/19"
action 5.0 cli command "shut"
action 6.0 cli command "end"

Joe Clarke · ‎08-26-2015

Use syslog instead. You should see a syslog message when a tracked object transitions from Up to Down and vice versa. E.g., "TRACK.*Track 1.*Up->Down"