radvd out of range MTU error #3161
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Thanks for creating this issue to track this. |
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Master branch is now running 4.19 kernel, so the patches in the description should be present. @prsunny: Do you know if there is a plan to set the bridge MTU to 9100? |
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@tahmed-dev: Thanks for the info! We should then also remove the patch from radvd and ensure we no longer see the errors before closing this issue. |
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…lly (#19064) #### Why I did it src/sonic-swss ``` * 3ee73618 - (HEAD -> master, origin/master, origin/HEAD) [orchagent] Add support for Path Tracing Midpoint (#2903) (34 hours ago) [Carmine Scarpitta] * 5ffb0b50 - [Bridge] Disable MAC learning for Link Local Mulitcast Frames on the kernel bridge (#3162) (2 days ago) [Gord Chen] * de9baac1 - [Marvell] PFC Detect lua script (#3160) (2 days ago) [Rajkumar-Marvell] * 31d9d6c1 - Add fabric counter rate mbps command handling. (#3129) (2 days ago) [jfeng-arista] * 425a8526 - Parse subport value added to config_db (#3161) (2 days ago) [Bobby McGonigle] ``` #### How I did it #### How to verify it #### Description for the changelog
mssonicbld
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May 28, 2024
…lly (#19095) #### Why I did it src/sonic-swss ``` * 5075e660 - (HEAD -> 202311, origin/202311) Parse subport value added to config_db (#3161) (8 seconds ago) [Bobby McGonigle] * 92fd1b88 - revert requests from 2.32.0 to 2.31.0 (#3154) (#3169) (8 hours ago) [Guohan Lu] ``` #### How I did it #### How to verify it #### Description for the changelog
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Description
radvd out of range MTU error
As part of "PR#2795 Build radvd from source; Patch so as not to treat out-of-range MTU as an error", the error message was reduced to warning
and failure was bypassed.
This issue is created to track a final fix. Following fixes have been commited to 4.18 kernel to support setting of bridge MTU to a value > 9100. When SONiC kernrel is upgraded to a kernel > 4.18, the patch done in radvd needs to be removed and Bridge MTU needs to be set to 9100.
torvalds/linux@3341d91#diff-221ed728b95e6fa6475069eed594287c
torvalds/linux@804b854#diff-221ed728b95e6fa6475069eed594287c
torvalds/linux@f40aa23#diff-221ed728b95e6fa6475069eed594287c
torvalds/linux@419d14a#diff-221ed728b95e6fa6475069eed594287c
Steps to reproduce the issue:
Make sure that DEVICE_METADATA|localhost|type="ToRRouter"
Create a VLAN and add an active link to it
config vlan add 100
config vlan member add 100 Ethernet0
Assing IPv6 address to the Vlan interface
config interface ip add Vlan100 2002::1/64
Restart radv container
systemctl restart radv
Check syslog
Describe the results you received:
Following error message is seen
Jul 16 00:41:19.823049 sonic WARNING radv#radvd[60]: AdvLinkMTU for Vlan1 (9100) must be zero or between 1280 and 1500
Describe the results you expected:
No error/warnings need to be observed
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