From 48336c6b2cd93e98acd2171d67ba4efd95d5ec21 Mon Sep 17 00:00:00 2001 From: prabhataravind <108555774+prabhataravind@users.noreply.github.com> Date: Tue, 2 Jan 2024 21:29:34 -0800 Subject: [PATCH] [image_config]: Update DHCP rate-limit for mgmt TOR devices (#17630) * [image_config]: Update DHCP rate-limit for mgmt TOR devices Change DHCP rate limit(queue4,group3) in SONiC copp configuration to 300 PPS for mgmt TORs while keeping the rate limit at 100 PPS for other topologies. Why I did it: Some mgmt TORs based on Marvell ASIC do not support 100 PPS CIR, so that led to these devices silently dropping DHCP packets. Microsoft ADO: **25820076** How to verify it: Send DHCP broadcast packets to an M0 DUT and verify that they are trapped to CPU at 300 PPS. On non-mgmt devices, the packets should be trapped at CIR of 100 PPS. Also ran sonic-mgmt dhcp_relay test and confirmed that it passes. Signed-off-by: Prabhat Aravind --- files/image_config/copp/copp_cfg.j2 | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/files/image_config/copp/copp_cfg.j2 b/files/image_config/copp/copp_cfg.j2 index f3550677d760..dcae06fc0bbc 100755 --- a/files/image_config/copp/copp_cfg.j2 +++ b/files/image_config/copp/copp_cfg.j2 @@ -34,8 +34,13 @@ "queue": "4", "meter_type":"packets", "mode":"sr_tcm", +{% if DEVICE_METADATA is defined and DEVICE_METADATA['localhost'] is defined and DEVICE_METADATA['localhost']['type'] is defined and 'Mgmt' in DEVICE_METADATA['localhost']['type'] %} + "cir":"300", + "cbs":"300", +{% else %} "cir":"100", "cbs":"100", +{% endif %} "red_action":"drop" }, "queue1_group1": {