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HOLD DOWN AND INVALID TIMERS

krishna.vv
Level 1
Level 1

HI,

Can Some one please let me know the difference between Hold Down and Invalid Timers used by the distance vector protocals.

Thanks in Advance.

Vamsi Krishna

1 Accepted Solution

Accepted Solutions

rawatmohinder
Level 1
Level 1

Hi Krishna,

Holddown timer and invalid timer are different.

Holddown Timer:-- Holddown timer means a timer which starts when router receives the information about a invalid or inaccessible route from neighbor router.

Invalid Timer:-- Invalid timer means a timer which starts when a router didn,t receive an update about a route in a speceified time.

Hope it helps

Kindly rate the post if find it useful...

Thanks

Mahi

View solution in original post

2 Replies 2

mahmoodmkl
Level 7
Level 7

HI

invalid timer means a particular router is going to mark a particular route invalid if it doesnt hear from that router for a particular amount of time usually it depends upon the protocol which u use.

hold down timer means a particular router after declaring a particular route invalid and after flash timer expires if it learns about that route agian it is going to put the that update in the state of hold for a particular amount of time before entering it in the routing table.

Thanks

Mahmood

rawatmohinder
Level 1
Level 1

Hi Krishna,

Holddown timer and invalid timer are different.

Holddown Timer:-- Holddown timer means a timer which starts when router receives the information about a invalid or inaccessible route from neighbor router.

Invalid Timer:-- Invalid timer means a timer which starts when a router didn,t receive an update about a route in a speceified time.

Hope it helps

Kindly rate the post if find it useful...

Thanks

Mahi

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