IP SLA

[Salman-Abbasi]

Hi Team , 

I have one requirement that whenever PC1 and 8.8.8.8 reachability goes down due to any reason and consider 8.8.8.8 is CLOUD IP then R2 interface f2/0 should also be down like state or protocol of interface can we achieve this through IPSLA or any other way.

Regards

Salman

[MHM Cisco World]

Use EEM to detect IP SLA status and action down interface 

MHM

[Salman-Abbasi]

Hi MHM Cisco World

Could you please share the EEM configuration.

[MHM Cisco World]

You want interface to be down to remove default route?

MHM

[Salman-Abbasi]

My requirement is when 8.8.8.8 not reachable from R2 then interface f2/0 should be down.

[MHM Cisco World]

And how yoh make it UP again?

This my concern 

MHM

[Salman-Abbasi]

I can Manually bring up the interface.

[Salman-Abbasi]

Kindly ignore last reply 

When 8.8.8.8 will be reachable from R2 then f2/0 auto up the interface.

[MHM Cisco World]

Sorry that cannot be done 

Check my below reply 

MHM

[MHM Cisco World]

Example 

ip sla 1
icmp-echo 8.8.8.8 source-interface x/x
ip sla schedule 1 life forever start-time now

track 1 ip sla 1 reachability

event manager applet IPSLA
event track 1 state down

action 1.0 cli “enable”
action 2.0 cli “conf t”
action 3.0 cli “int x/x”
action 4.0 cli “shut”
action 5.0 cli “end”

[paul driver · Accepted solution]

Hello
You dont mention what IOS your are using and on what platform, however its possibile a simple EEM can be applied

Simple EEM

ip sla 10
icmp-echo 8.8.8.8 source-ip x.x.x.x
timeout 200
frequency 5
ip sla schedule 10 life forever start-time now

track 1 rtr 10 reachability

event manager applet FA02-DOWN
event track 1 state down
action 5.0 cli command "enable"
action 5.1 cli command "conf t"
action 5.2 cli command "interface fa0/2"
action 5.3 cli command "shut"
action 5.4 cli command "end"

event manager applet FA0/2-UP
event track 1 state up
action 5.5 cli command "enable"
action 5.6 cli command "conf t"
action 5.7 cli command "interface fa0/2"
action 5.8 cli command "no shut"
action 5.9 cli command "end

[Salman-Abbasi]

Thank you so much it is working.

[MHM Cisco World]

@paul driver @Salman-Abbasi 

It never work 

Because ip sla use IP to be UP and you admin down it. 

I know what I am talking about

If IP Sla is up and the port is admin down then IP sla use different path and that so so wrong 

It easy logic 

MHM

[paul driver]

Hello

---

@MHM Cisco World wrote:

@paul driver @Salman-Abbasi 

It never work 

I know what I am talking about

---

The source interface of the ipsla isnt the interface the OP wants to shut down when tracking fails so yes the above cfg WILL work.

[MHM Cisco World]

If he use different ip sla source interface then what logic of eem and IP sla???

Friends take a min think about issue

MHM