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RTR question

int fa0/0

standby 1 track 50 decrement 10

standby 1 track 51 decrement 10

track 50 rtr 50

track 51 rtr 50 reachability

rtr 50

type echo protocol ipIcmpEcho 1.1.1.1

request-data-size 100

timeout 1000

threshold 1000

frequency 2

rtr schedule 50 life forever start-time now

can anyone tell me what is the difference between the track 50,51 with and without reachability?

and what is the parameters timeout,frequency and threshold mean?

1 REPLY

Re: RTR question

Hi,

The below link contains all the details regarding IP SLA parameters you are asking about:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cg/hsla_c/hsicmp.htm

NOTE: In Cisco IOS Release 12.3(14)T, the Cisco IOS Service Assurance Agent (SAA) feature was replaced by the Cisco IOS IP Service Level Agreement (IP SLA), accordingly the "rtr" command was replaced by the "ip sla monitor" command.

As for the reachability keyword with the track command, when configuring enhanced tracking you can use either state (the default) or reachability.

Router(config)#track 1 rtr 1 ?

reachability Reachability

state Return code state

The difference between these states relates to the acceptance of the OverThreshold return code, i always use reachability as the OverThreshold is most commonly not an issue, please check this link:

http://www.cisco.com/en/US/products/sw/iosswrel/ps5207/products_feature_guide09186a00801d2d74.html#wp1048088

HTH,

Mohammed Mahmoud.

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