# How to test 100G port on LX2160

**URL:** <https://community.solid-run.com/t/how-to-test-100g-port-on-lx2160/658>\
**Category:** NXP LX2160\
**Tags:** NXP-LX2160\
**Created:** [May 31, 2023, 3:08am UTC](https://community.solid-run.com/t/how-to-test-100g-port-on-lx2160/658 "2023-05-31T03:08:53Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![vader](https://avatars.discourse-cdn.com/v4/letter/v/9d8465/32.png) [@vader](https://community.solid-run.com/u/vader)\
**Post date:** [May 31, 2023, 3:08am UTC](https://community.solid-run.com/t/how-to-test-100g-port-on-lx2160/658/1 "2023-05-31T03:08:53Z")

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I want to use ptkgen to test 100G port, but has such error messages when plug QSFP28 transceiver.

```auto
 /usr/local/bin# [2374.565278] sfp qsfp-0: EEPROM base structure checksum failure: 0x0d != 0x00
[2374.572350] sfp EE: 00000000: 11 07 00 00 00 f4 01 00 00 00 00 00 00 00 00 00 ................
[2374.581043] sfp EE: 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[2374.589750] sfp EE: 00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[2374.598451] sfp EE: 00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[2374.607153] sfp EE: 00000040: 00 31 01 00 7a 2a ff ff 80 bd 0f 10 00 80 ff ff .1..z*..........
[2374.615853] sfp EE: 00000050: 70 c6 1b 73 f5 ba ff ff 90 bd 0f 10 00 80 ff ff p..s............

```

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<div class="post-metadata">

**Author:** ![jnettlet](https://dub1.discourse-cdn.com/flex005/user_avatar/community.solid-run.com/jnettlet/32/62_2.png) [@jnettlet](https://community.solid-run.com/u/jnettlet)\
**Post date:** [May 31, 2023, 5:03am UTC](https://community.solid-run.com/t/how-to-test-100g-port-on-lx2160/658/2 "2023-05-31T05:03:37Z")

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Regardless of the eeprom issues, currently phylink does not have support for \> 25Gbps transceivers. You will need to configure the device-tree entry as a fixed-link and then setup the dpl and dpc for the mc-bin firmware to configure the link as 100Gbps. Then rely on restool to create the interface.

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**Author:** ![vader](https://avatars.discourse-cdn.com/v4/letter/v/9d8465/32.png) [@vader](https://community.solid-run.com/u/vader)\
**Post date:** [June 1, 2023, 10:50am UTC](https://community.solid-run.com/t/how-to-test-100g-port-on-lx2160/658/3 "2023-06-01T10:50:21Z")

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It‘s difficult for me to modify device-tree.Is there a plan to support 100G transceiver?