From bff9c169c6180466b1dd906ae0f1dde08c7c16ca Mon Sep 17 00:00:00 2001 From: Sakthivel Velumani Date: Sun, 20 Apr 2025 10:18:36 -0400 Subject: [PATCH] Update MTU for Foxconn to 9600 After capturing the FH packets, we observed that the RU supports the MTU value for jumbo frames. Therefore, no fragmentation needed on DL. Co-authored-by: Teodora Vladic --- doc/ORAN_FHI7.2_Tutorial.md | 2 +- .../CONF/gnb.sa.band78.273prb.fhi72.4x4-foxconn.conf | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/doc/ORAN_FHI7.2_Tutorial.md b/doc/ORAN_FHI7.2_Tutorial.md index df72be82c6..da4a06bbcc 100644 --- a/doc/ORAN_FHI7.2_Tutorial.md +++ b/doc/ORAN_FHI7.2_Tutorial.md @@ -709,7 +709,7 @@ At this stage, RU must be rebooted so the changes apply. The OAI configuration file [`gnb.sa.band78.273prb.fhi72.4X4-foxconn.conf`](../targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb.sa.band78.273prb.fhi72.4X4-foxconn.conf) corresponds to: - TDD pattern `DDDSU`, 2.5ms - Bandwidth 100MHz -- MTU 8000 +- MTU 9600 #### RU configuration diff --git a/targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb.sa.band78.273prb.fhi72.4x4-foxconn.conf b/targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb.sa.band78.273prb.fhi72.4x4-foxconn.conf index 97fd75bda8..bd4cd59f06 100644 --- a/targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb.sa.band78.273prb.fhi72.4x4-foxconn.conf +++ b/targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb.sa.band78.273prb.fhi72.4x4-foxconn.conf @@ -257,7 +257,7 @@ fhi_72 = { io_core = 1; worker_cores = (2); ru_addr = ("6c:ad:ad:00:04:dc", "6c:ad:ad:00:04:dc"); - mtu = 8000; + mtu = 9600; fh_config = ({ T1a_cp_dl = (285, 470); T1a_cp_ul = (285, 429);