03-03-2011 01:02 AM - edited 03-04-2019 11:38 AM
We have multiple cisco routers and most of them have dual WAN connections thru different ISPs. So, we use IP SLA monitor with tracking object s to monitor each ISP availability/reliability and switch routing accordingly ( by IOS). So far, it has been working ok. However, recently, we had some ISP high latency and the connection to one ISP will be so slow but the IOS keep seeing it as UP, thus sending traffic thru it. So, I tried to change around the threshold numbers around with no luck. Is there any configuration/commands or tricks that can do the job here? I don't want the users to be the one to detect the Internet slowness and have me manually shut down an interface or change the static routes metrics. here is a sample of my config:
ip sla 1
type echo protocol ipIcmpEcho x.x.x.x isp 1 gateway
threshold 3
frequency 5
ip sla monitor schedule 1 life forever start-time now
ip sla 2
type echo protocol ipIcmpEcho x.x.x.x isp 2 gateway
threshold 3
frequency 5
ip sla monitor schedule 2 life forever start-time now
interface fa0/0/0
ip address x.x.x.x 255.255.255.x isp1
Description Up-Link to isp1
full-duplex
no cdp enable
exit
interface fa0/0/1
ip address x.x.x.x 255.255.255.x isp 2
Description Up-Link to Relience
full-duplex
no cdp enable
exit
interface FastEthernet0/1/0
ip address 172.16.20.254 255.255.255.252
description Inside interface
speed auto
full-duplex
no cdp enable
exit
ip route 0.0.0.0 0.0.0.0 202.63.106.241 track 101 isp1
ip route 0.0.0.0 0.0.0.0 220.225.230.97 track 102 isp2
Problem here is i could not find sla or rtr otion after track 101 ip ?
--------------track 101 ip sla 1 reachability------------- i could not see any rtr or sla option
--------------track 102 ip sla 2 reachability-------------
--------------track 101 ip rtr 1 reachability------------- i could not see any rtr or sla option
--------------track 102 ip rtr 2 reachability------------- i could not see any rtr or sla option
Regards
Kiran Kumar CH
03-08-2011 04:32 AM
Dear Kiran ,
You need the below commands .
Track 101 ip sla 1 reachability
I Guess that you are running ip base images
IPBASE will not support object tracking. You will have to move the IOS to another feature set.
Regards
Haris P
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