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Check this routing table

track 1 ip route reachability
ip route track 1
ip route track 1
ip route name FW_INTERNET
ip route GigabitEthernet0/0.10 tag 20
ip route GigabitEthernet0/0.10 tag 20

In the first route what does reachability mean?

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up vote 1 down vote accepted

it just checking connectivity...

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reachability is not part of the routing table, but of an object tracking instruction. It checks whether the route is reachable (see here).

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What does it mean? If is available send the packets go through there? – Ricardo Polo Apr 27 '12 at 15:11
It will not send any packets. It will simply check if it is in the routing table and if its next hop is also reachable. – Oliver Apr 27 '12 at 15:14
A why is it checked? If this next hop is available what decision does it takes? or is simply for logging? Thank you @Oliver – Ricardo Polo Apr 27 '12 at 15:32
It could be for logging, but also for other actions like, for example, activating a secondary interface. – Oliver Apr 27 '12 at 15:43
in this case only make a check or where is the action? – Ricardo Polo Apr 27 '12 at 16:02

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