NVIDIA Docs Hub NVIDIA Networking Networking Software ibdiagnet InfiniBand Fabric Diagnostic Tool User Manual v2.9.0 Congestion Control

Congestion Control

The following ibdiagnet options can be used to dump Mellanox/Nvidia Congestion Control configuration from HCAs/switches and Congestion Control Counters.

Parameter	Description
--congestion_control	Dumps Congestion Control configuration to the ibdiagnet2.db_csv file.
--congestion_counters	Dumps Mellanox/Nvidia Congestion Control Counters in ibdiagnet2.db_csv file. This option also activates congestion_control option. If in ibdiagnet configuration file the following are set, congestion counters will be collected: congestion_counters is set to TRUE congestion_control is set to FALSE
--clear_congestion_counters	Dumps Congestion Counters to the ibdiagnet2.db_csv file and clears them. This option also activate congestion_control option.

Example:

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            ibdiagnet --congestion_control
ibdiagnet --congestion_counters
ibdiagnet --clear_congestion_counters

Output:

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            START_CC_ENHANCED_INFO
NodeGUID,ver0Supported,CC_Capability_Mask
0x0002c9000000001d,1,0x0000000000000002
0x0002c9000000004f,1,0x0000000000000002
0x0002c90000000011,1,0x0000000000000002
END_CC_ENHANCED_INFO
 
 
START_CC_SWITCH_GENERAL_SETTINGS
NodeGUID,aqs_time,aqs_weight,en,cap_total_buffer_size
0x0002c9000000004f,0,0,0,0
0x0002c90000000041,0,0,0,0
0x0002c90000000043,0,0,0,0
END_CC_SWITCH_GENERAL_SETTINGS
 
 
START_CC_PORT_PROFILE_SETTINGS
NodeGUID,portNum,vl,mode,profile1_min,profile1_max,profile1_percent,profile2_min,profile2_max,profile2_percent,profile3_min,profile3_max,profile3_percent
0x0002c9000000004f,1,0,0,0,0,0,0,0,0,0,0,0
0x0002c9000000004f,1,1,0,0,0,0,0,0,0,0,0,0
0x0002c9000000004f,1,2,0,0,0,0,0,0,0,0,0,0
END_CC_PORT_PROFILE_SETTINGS
 
 
START_CC_SL_MAPPING_SETTINGS
NodeGUID,portNum,sl_profile_0,sl_profile_1,sl_profile_2,sl_profile_3,sl_profile_4,sl_profile_5,sl_profile_6,sl_profile_7,sl_profile_8,sl_profile_9,sl_profile_10,sl_profile_11,sl_profile_12,sl_profile_13,sl_profile_14,sl_profile_15
0x0002c9000000004f,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
0x0002c9000000004f,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
0x0002c9000000004f,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
END_CC_SL_MAPPING_SETTINGS
 
 
START_CC_HCA_GENERAL_SETTINGS
NodeGUID,PortGUID,portNum,en_react,en_notify
0x0002c9000000001d,0x0002c9000000001e,1,0,0
0x0002c90000000011,0x0002c90000000012,1,0,0
0x0002c90000000015,0x0002c90000000016,1,0,0
END_CC_HCA_GENERAL_SETTINGS
 
 
START_CC_HCA_RP_PARAMETERS
NodeGUID,PortGUID,portNum,clamp_tgt_rate_after_time_inc,clamp_tgt_rate,rpg_time_reset,rpg_byte_reset,rpg_threshold,rpg_max_rate,rpg_ai_rate,rpg_hai_rate,rpg_gd,rpg_min_dec_fac,rpg_min_rate,rate_to_set_on_first_cnp,dce_tcp_g,dce_tcp_rtt,rate_reduce_mionitor_period,initial_alpha_value
0x0002c9000000001d,0x0002c9000000001e,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
0x0002c90000000011,0x0002c90000000012,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
0x0002c90000000015,0x0002c90000000016,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
END_CC_HCA_RP_PARAMETERS
 
 
START_CC_HCA_NP_PARAMETERS
NodeGUID,PortGUID,portNum,min_time_between_cnps,cnp_sl,cnp_sl_mode
0x0002c9000000001d,0x0002c9000000001e,1,0,0,0
0x0002c90000000011,0x0002c90000000012,1,0,0,0
0x0002c90000000015,0x0002c90000000016,1,0,0,0
END_CC_HCA_NP_PARAMETERS
 
 
START_CC_HCA_STATISTICS_QUERY
NodeGUID,PortGUID,portNum,clear,cnp_ignored,cnp_handled,marked_packets,cnp_sent,timestamp,accumulators_period
0x0002c9000000001d,0x0002c9000000001e,1,1,8438294795498567466,11946806576396300733,10660184510038152731,17344637759085672224,2146452334753643592,1088665365
0x0002c90000000011,0x0002c90000000012,1,1,13850774289226306924,6716987295250300780,3875360350926614344,13023957060305061195,764498337964851634,1436934366
0x0002c90000000015,0x0002c90000000016,1,1,13520874084649801659,3138568427236183055,4818259338400718972,18218947454021603546,17720325260696739839,2265373316
END_CC_HCA_STATISTICS_QUERY