# Why do we need the topology updater?

**URL:** <https://forum.cardano.org/t/why-do-we-need-the-topology-updater/67955>\
**Category:** Operate a Stake Pool\
**Created:** [1 August 2021 11:48 UTC](https://forum.cardano.org/t/why-do-we-need-the-topology-updater/67955 "2021-08-01T11:48:52Z")\
**Posts on this page:** 1\
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**Author:** ![Alexd1985](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.cardano.org/alexd1985/32/23759_2.png) [@Alexd1985](https://forum.cardano.org/u/Alexd1985)\
**Post date:** [1 August 2021 12:04 UTC](https://forum.cardano.org/t/why-do-we-need-the-topology-updater/67955/6 "2021-08-01T12:04:23Z")

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- `cnode-tu-push.service` : pushes a node alive message to Topology Updater API

Basically the topology updater script role is to send each hour a keep alive message, this way your node will be declared online and it will be added to the main topology table

Optionals are:

- restart the node
- fetch a new topology file, etc

This will be change soon when the P2P protocol will be released

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