core1:1#show trace modid-list
0   – COMMON                     126 – MRP
1   – SNMP                       127 – EFM
2   – RMON                       128 – DHU
3   – PORT_MGR                   129 – N/A
4   – CHAS_MGR                   130 – N/A
5   – BRIDGE                     131 – ERCD_DHCPS
6   – OSPF                       132 – KHI
7   – HWIF                       133 – NETWRS
8   – SIM                        134 – NETINET
9   – CPP                        135 – OS
10  – NETDRV                     136 – VXNET
11  – VLAN_MGR                   137 – USR
12  – CLI                        138 – VXCONFIG
13  – MAIN                       139 – OSAL
14  – P2IP                       140 – MISC
15  – RCIP                       141 – SHELL
16  – WEBSRV                     142 – MESSAGE
17  – ACIF                       143 – LCD
18  – GBIF                       144 – COP
19  –                            145 – ZLIB
20  – TDP                        146 – SF
21  – MAN_DIAG                   147 – MESSAGE
22  – MAN_TEST                   148 – LCD

23  – IGMP                       149 – COP
24  – IPFIL                      150 – QOS
25  – MLT                        151 – COP
26  – IPPOLICY                   152 – IM
27  – IPMC                       153 – IMG_SYNC
28  – SYSLOG                     154 – LOG
29  – DVMRP                      155 – CAN
30  – P2IPX                      156 – LC
31  – RCIPX                      157 – RESET
32  – RAPTARU                    158 – CPP-AGENT
33  – OCTAPID                    159 – HBELIB
34  – BOOT                       160 – CORE
35  – IOM                        161 – SHRLOG
36  – QOS                        162 – WD_APP
37  – FLEXDB                     163 – WD_PROC
38  – SMM                        164 – CPP_COMMON
39  – ATM                        165 – PatchManager
40  – POS                        166 – RCIP_OSPF
41  – RADIUS                     167 – RCIP_RIP
42  – SIO_COM                    168 – RCIP_PIM
43  – PGM                        169 – RCIP_IGMP
44  – ORNA                       170 – RCIP_DHCP
45  – RTM                        171 – RCIP_VRRP

46  – P2CMN                      172 – RCIP_UDP
47  – RIP                        173 – RCIP_RSMLT
48  – PIM                        174 – RCIP_POLICY
49  – RPS                        175 – VSP_TALK
50  – NTP                        176 – CLILOG
51  – TCP                        177 – SNMPLOG
52  – BGP                        178 – L2VPN
53  – EPILOGUE                   179 – ERCD_SPBM
54  – SSH                        180 – LLDP
55  – AUTOMAT                    181 –
56  – HAL                        182 –
57  – WIND                       183 – SPBPT
58  – EAP                        184 – LMF
59  – LACP                       185 – VPE_MAC
60  – PING                       186 – HCK
61  – DNS                        187 – VPE_VLAN
62  – DPM                        188 – VPE_IPV4
63  – BOOTP                      189 – VPE_ARP
64  – DPMMSG                     190 – VPE_IPMC
65  – FILTER                     191 – VPE_IPV6
66  – RCIP6                      192 – SLAMON
67  – MESSAGE                    193 – VPE_BRIDGE
68  – LCD                        194 – VPE_MLT

69  – RCD                        195 – VPE_PORT
70  – RLCD                       196 – VPE_SPBM
71  – PD                         197 – DBG
72  – COP                        198 – PORT_L1
73  – ERCD                       199 – POE
74  – ERCD_VLAN                  200 – VPE_FILTER
75  – ERCD_PORT                  201 – VPE_QOS
76  – ERCD_MLT                   202 – VPE_IPFIX
77  – ERCD_MGID                  203 – EVT
78  – ERCD_MAC                   204 – VPE_FABRIC
79  – ERCD_HA                    205 – VPE_DRIVER
80  – ERCD_IP                    206 – VPE_TBLMGR
81  – ERCD_IPMC                  207 – UNI
82  – ERCD_IPX                   208 – VPE_CONCHK
83  – ERCD_IPV6                  209 – VPE_UTL
84  – ERCD_IPFIX                 210 – VPE_POLICER
85  – ERCD_FILTER                211 – MACSEC
86  – ERCD_QOS                   212 – VPE_HEARTBEAT
87  – ERCD_MPLS                  213 – VPE_CMD
88  – ERCD_IPVPN                 214 – VPE_VL
89  – F2I                        215 – VPE_COB
90  – F2E                        216 – VPE_PATCH
91  – FOQ                        217 – VPE_RSP

92  – HWIFCOP                    218 – ASG
93  – IPFIX                      219 – ASG_UTILS
94  – IPMC6                      220 – VPE_MACSEC
95  – MCAST6_CMN                 221 – FA
96  – MLD                        222 – ONA
97  – PIM6                       223 – PIMGW
98  – SLPP                       224 – MOCANA
99  – INFINITY                   225 – FHS
100 – MPLS                       226 – ERCD_FHS
101 – RCMPLS                     227 – VRRPV3
102 – ACLI                       228 – DBSYNC
103 – VRF                        229 – DVR
104 – NSNA                       230 – SMTP
105 – MIRRORFPGA                 231 – VXLAN
106 – MSTP                       232 – SFLOW
107 – RSTP                       233 – IKE
108 – MSDP                       234 – DIGITALCERT
109 – TACACS                     235 – OPENSSL
110 – BFD                        236 – CHEF
111 – OPM                        237 – CHEFCLIENT
112 – MSG_API                    238 – IPSEC
113 – DISPATCHER                 239 – SECURITY
114 – MAILBOX_DRV                240 – ERCD_SECURITY

115 – TLS                        241 – SLPPG
116 – ADM                        242 – NLS_BASE
117 – RBS                        243 – NLS_SSIO
118 – TDCONT                     244 – OVSDBIF
119 – ISIS                       245 – VCS
120 – CFM                        246 – VCS_CLIENT
121 – OERCD                      247 – NICKNAME_SERVER
122 – PWE3                       248 – NICKNAME_CLIENT
123 – EXTENDED_PING              249 – ENERGY_SAVER
124 – LOOPBACK                   250 – MULTIPLE_USERS
125 – SPBM                       251 – LST
252 – NLS_NFT

core1:1#trace level 9 ?
<0-4>   Trace level (0-Disabled; 1-Very terse; 2-Terse; 3-Verbose; 4-Very verbose)

core1:1#clear trace

core1:1#trace level 9 2

core1:1#trace shut

core1:1#show trace file tail

core1:1#save trace

Save trace to file /intflash/systrace successful.
283 written to /intflash/systrace

Windows:

ping -v is now deprecated which was useful for sending ICMP with TOS field values. Try ping -Q as alternative from a UNIX machine.

Unix:

ping –Q

-Q tos Set Quality of Service -related bits in ICMP datagrams.  tos can be

either decimal or hex number.  Traditionally (RFC1349), these  have

been  interpreted  as: 0 for reserved (currently being redefined as

congestion control), 1-4 for Type of Service  and  5-7  for  Prece-

dence.   Possible  settings  for Type of Service are: minimal cost:

0x02, reliability: 0x04, throughput: 0x08, low delay: 0x10.  Multi-

ple  TOS  bits should not be set simultaneously.  Possible settings

for special Precedence range from priority (0x20)  to  net  control

(0xe0).   You must be root (CAP_NET_ADMIN capability) to use Criti-

cal or higher precedence value.  You cannot set bit 0x01 (reserved)

unless  ECN  has  been  enabled  in  the kernel.  In RFC2474, these

fields has been redefined as 8-bit  Differentiated  Services  (DS),

consisting  of: bits 0-1 of separate data (ECN will be used, here),

and bits 2-7 of Differentiated Services Codepoint (DSCP).

Man curl or curl –help

Curl can be useful to check TCP connections for http or https.

Result could be Connection Timeout, Connection Refused or Connected (200 OK).