# After installation, execution nodes state = state-unknown

**URL:** <https://community.openpbs.org/t/after-installation-execution-nodes-state-state-unknown/3990>\
**Category:** Users/Site Administrators\
**Created:** [September 16, 2024, 6:19pm UTC](https://community.openpbs.org/t/after-installation-execution-nodes-state-state-unknown/3990 "2024-09-16T18:19:14Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ranez5403](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.openpbs.org/ranez5403/32/753_2.png) [@ranez5403](https://community.openpbs.org/u/ranez5403)\
**Post date:** [September 16, 2024, 6:19pm UTC](https://community.openpbs.org/t/after-installation-execution-nodes-state-state-unknown/3990/1 "2024-09-16T18:19:14Z")

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I am trying to install openpbs on a rocky linux (8.8) cluster. After the installation, the execution node stays in state-unknown. Everything seems ok, but mom\_logs shows message pbs\_mom;Svr;pbs\_mom;im\_eof, Premature end of message from addr 192.168.1.1:15001. The command set state = free does not work. I know more information must be necessary to resolve the problem, but any help will be appreciated.  
Thanks in advance

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**Author:** ![adarsh](https://avatars.discourse-cdn.com/v4/letter/a/f07891/32.png) [@adarsh](https://community.openpbs.org/u/adarsh)\
**Post date:** [September 16, 2024, 6:57pm UTC](https://community.openpbs.org/t/after-installation-execution-nodes-state-state-unknown/3990/2 "2024-09-16T18:57:40Z")

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Please check this discussion: [Is there any news for the next upcoming release? - #11 by adarsh](https://community.openpbs.org/t/is-there-any-news-for-the-next-upcoming-release/2633/11)

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**Author:** ![boboshaq](https://avatars.discourse-cdn.com/v4/letter/b/bc8723/32.png) [@boboshaq](https://community.openpbs.org/u/boboshaq)\
**Post date:** [October 10, 2024, 12:36pm UTC](https://community.openpbs.org/t/after-installation-execution-nodes-state-state-unknown/3990/3 "2024-10-10T12:36:16Z")

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Also check your network settings:

> [@State-unknown,down](https://community.openpbs.org/t/state-unknown-down/2681/18):
>
> Hi, I resolved this issue. Problem was in switches configuration. It concerns MTU. When You set MTU 9000 on interfaces, on switches You need to set max accept value of MTU. Regards!