Require Help in IP SLA

Unanswered Question
Apr 15th, 2009
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Hi,


Pls find the attachment which I configured for Auto backup.I am able to ping all the ips when my both the links are up.

1. Tell me which i configured metric 100 for static route, is it correct?

2.When my REL link down at Pune, I am not able connect Mumbai.


Is there any misconfiguration?

Thanx in advance.....




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thotsaphon Wed, 04/15/2009 - 23:18
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arjun,

I need more information.

Can you ping 10.5.1.21 from Mumbai router by using a source as 10.5.1.9?

If not,please add the following commands.


MumBai

ip route 10.5.1.20 255.255.255.252 10.5.1.10


Pune

ip route 10.5.1.8 255.255.255.252 10.5.1.22


Can you ping now?

###################################

Can you ping 10.5.2.90 from Mumbai router by using a source as 10.5.2.2?


If not,please add the following commands.


MumBai

ip route 10.5.2.88 255.255.255.252 10.5.2.1


Pune

ip route 10.5.2.0 255.255.255.252 10.5.2.89


Can you ping now?


###################################


Just want more information to help you to use IPSLA to solve this issue. The problem is that they are not point-to-point then we have to uninstall the static route on both site at the same time.



HTH,

Toshi

arjunsawant Thu, 04/16/2009 - 01:37
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Hi Toshi....Thanx a lot


I am able to ping both the ips.Pls tell me whether the metric configured is correct or not? (For VSNL Link).I configured IP SLA for only one link,Is it require to configured for second link also?

I think in IP SLA, route map is require.Can you tell me the config for the same.

Your Help is appreciated.....!

thotsaphon Thu, 04/16/2009 - 01:57
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arjun,

I haven't seen the whole configuration but you said that you have full connectivity. Well, Assuming that REL link is primary. Based on the existing configuration.


##################################

Mumbai# configure terminal

Mumbai (config)# ip sla monitor 1

Mumbai (config-sla-monitor)# type echo protocol ipIcmpEcho 10.5.1.21 source-ipaddr 10.5.1.9

Mumbai (config-sla-monitor-echo)# timeout 1000 msec

Mumbai (config-sla-monitor-echo)# frequency 3 sec

Mumbai (config-sla-monitor-echo)# threshold 2 msec

Mumbai (config-sla-monitor-echo)# exit

Mumbai (config)# ip sla monitor schedule 1 life forever start-time now

Mumbai (config)# track 123 rtr 1 reachability


Mumbai (config)# ip route 200.2.5.0 255.255.255.0 10.5.1.10 track 123 10

Mumbai (config)# ip route 200.2.5.0 255.255.255.0 10.5.2.1 100


####################################

Pune # configure terminal

Pune (config)# ip sla monitor 1

Pune (config-sla-monitor)# type echo protocol ipIcmpEcho 10.5.1.9 source-ipaddr 10.5.1.21

Pune (config-sla-monitor-echo)# timeout 1000 msec

Pune (config-sla-monitor-echo)# frequency 3 sec

Pune (config-sla-monitor-echo)# threshold 2 msec

Pune (config-sla-monitor-echo)# exit

Pune (config)# ip sla monitor schedule 1 life forever start-time now

Pune (config)# track 123 rtr 1 reachability


Pune (config)#ip route 10.0.0.0 255.255.0.0 10.5.1.22 track 123 10

Pune (config)#ip route 10.0.0.0 255.255.0.0 10.5.2.89 100


##################################


- If IPSLA of both sides are telling you as OKAY then both routers will install a static route using REL as a media (AD=10).

- If IPSLA of both sides are telling you as NOT-OKAY then both routers will install a static route using VSNL as a media(AD=100).



Is it possible to see IPSLA of one side says good and another one says bad? hmmm... Hope not to see.



EDIT: Why don't you use a dynamic routing protocol? I'm curious.


HTH,

Toshi




arjunsawant Fri, 04/17/2009 - 03:53
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Hi..

Thanx for giving your precious time.

By using track 123 10 command i can ping the ip.

I want to ask u if i use BGP between Mumbai and Reliance.What should be the command at Mumbai router for track (Auto Backup).


Thanx...

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