I would like to know how many interfaces can be tracked using syandby track command.
I want to track four serial interfaces on a router using standby track command.
ip address 10.105.3.8 255.255.255.128
standby 2 ip 10.105.3.7
standby 2 priority 105
standby 2 preempt
standby 2 track Serial0/0/0:0
standby 2 track Serial0/0/1:0
standby 2 track Serial0/1/0:0
standby 2 track Serial0/1/1:0
ip address 10.254.238.5 255.255.254.0
ip address 10.254.238.21 255.255.254.0
ip address 10.254.238.13 255.255.254.0
ip address 10.10.10.1 255.255.255.252
Can I use the above config for tracking four serials.
Suppose if serial 0/0/0:0 goes down , then the traffice will go through second router.What about the remaining serial interface traffice. Does it goes through first router or second router , since the three other serial interfaces are up in first router.
I dont think there should be any issues with the config posted by you... you can have as many interfaces as the router supports , on the standby track command. i dont feel that there is any limitations to this. The standby track command will then work in accordance ith the document given below
As you are aware, HSRP is more a LAN protocol.. the default gateway in the lan for one particular device can either be router a or router b.. it cannot be a case where for some particular destinations ,it is router a and for some other destinations it is router b.. the serial tracking also works in accordance with this..
if one of the links go down and the priority of router a becomes less than router b, ALL THE TRAFFIC FLAPS ONTO ROUTER B... so, if the primary links are still up in router a, it will not be used, because the traffic has been flapped to router b... if you want to still use router a, you need to give another L3 connection beteen router a and b and do some routing changes which can become too complex..
Hope this helps.. all the best.. rate replies if found useful..
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