display capture-packet information
Function
The display capture-packet information command displays the information about all packet head obtaining instances.
Parameters
| Parameter | Description | Value |
|---|---|---|
| instance-id instance-id |
Specifies the ID of a packet head obtaining instance. |
It is an integer ranging from 1 to 8. |
| from begin-packet-number |
Specifies the start packet number corresponding to the ID of the packet head obtaining instance. |
It is an integer ranging from 1 to 6000. |
| to end-packet-number |
Specifies the end packet number corresponding to the ID of the packet head obtaining instance. |
It is an integer ranging from 1 to 6000. |
| format-cap |
Saves the displayed information as a .cap file for future query. |
If no CF card is available or the available space on the CF card is less than 35 MB, information about the packet header obtaining instance cannot be saved. In this case, you need to set this parameter. |
| verbose |
Indicates detailed information about the packet head obtaining instance. |
- |
Usage Guidelines
Usage Scenario
After an instance for obtaining forwarded packet headers or an instance for obtaining packet headers sent to the CPU is configured, you can run the display capture-packet information command to view the information about the instance, including the instance where packet head obtaining stopped.
The packet information displayed in the command output includes only packet headers, without any sensitive data.Precautions
This command is used to view the information about a packet instance whose ID is specified. If no instance ID is specified, brief information about all instances is displayed.
Example
The actual command output varies according to the device. The command output here is only an example.
<HUAWEI> display capture-packet information instance-id 1 Total capture instance number is 1 Forward capture inbound instance number is 0 Forward capture outbound instance number is 0 Host capture instance number is 1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - instance-id : 1 instance status : running instance total time length of set : 10000s instance remain time length : 9951s instance packet number of set : 6000 instance file length of set : 2M instance total memory size of set : 1M instance capture packet number : 24 instance capture packet size : 0B instance saved packet number : 0 instance saved packet size : 0B instance deleted packet number : 0 instance deleted packet size : 0B instance capture first packet time : 2018-04-12 13:19:45 instance capture last packet time : 2018-04-12 13:20:34 instance acl number/name : --- instance packet-num in memory : <1-24> instance saved packet device name : cfcard:/logfile/ instance save packet file name : capture_host_all_Eth0.1.0_2018-04-12-13-19-45.cap instance link type is : ethernet instance interface name is : Ethernet0/1/0 instance type is : local host instance systemid is : all - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - packet NO : 1 packet length is : 64 capture-time : 2018-04-12 13:19:57 L2 Type: Ethernet Source Mac : 00e0-fc21-0010 Dest Mac : 00e0-fc11-0010 Ethernet type/length: 0x0800 PeVlanid : 0 CeVlanid : 0 L3 Type: IPv4 Protocol Num : 1 Source Ip : 10.1.1.2 Dest Ip : 10.1.1.1 TOS/DSCP : 0/0 TTL : 255 L4 Type: ICMP Source Port : -- Dest Port : -- 0000 38 26 71 11 00 10 38 26 71 21 00 10 08 00 45 00 0010 00 54 08 02 00 00 ff 01 9d a2 0a 01 01 02 0a 01 0020 01 01 08 00 3c 8b 24 00 00 02 00 19 00 00 01 09 0030 ff 01 50 4e 47 00 00 00 00 00 00 00 00 00 00 00 packet NO : 2 packet length is : 64 capture-time : 2018-04-12 13:19:59 L2 Type: Ethernet Source Mac : 00e0-fc21-0010 Dest Mac : 00e0-fc11-0010 Ethernet type/length: 0x86dd PeVlanid : 0 CeVlanid : 0 L3 Type: IPv6 Protocol Num : 58 Source Ip : 100::2 Dest Ip : 100::1 Traffic Class/DSCP : 0/0 Flow Label : 0 Hop Limit : 64 L4 Type: ICMP6 Source Port : -- Dest Port : -- 0000 38 26 71 11 00 10 38 26 71 21 00 10 86 dd 60 00 0010 00 00 00 40 3a 40 01 00 00 00 00 00 00 00 00 00 0020 00 00 00 00 00 02 01 00 00 00 00 00 00 00 00 00 0030 00 00 00 00 00 01 80 00 58 82 24 00 01 00 00 00
| Item | Description |
|---|---|
| instance-id | ID of a packet header obtaining instance. |
| Total capture instance number is | Total number of packet header obtaining instances. |
| instance status | Packet header obtaining status:
|
| instance total time length of set | Timeout time of packet header obtaining. |
| instance remain time length | Remaining time for packet header obtaining. If the packet header obtaining status is stopped, ignore this value. |
| instance packet number of set | Set number of packets in the packet header obtaining file. |
| instance file length of set | Set size of the packet header obtaining file. |
| instance total memory size of set | Set size of the packet header obtaining memory. |
| instance capture packet number | Number of obtained packets. |
| instance capture packet size | Length of obtained packets. |
| instance saved packet number | Number of saved packets. |
| instance saved packet size | Length of saved packets. |
| instance deleted packet number | Number of deleted packets. |
| instance deleted packet size | Length of deleted packets. |
| instance capture first packet time | Time when the first packet was obtained. |
| instance capture last packet time | Time when the last packet was obtained. |
| instance acl number/name | ACL number or name of a packet header obtaining instance. |
| instance packet-num in memory | Number of obtained packet headers in the main control board memory. |
| instance saved packet device name | Path of the file that saves the packet header information. |
| instance save packet file name | Name of the packet header obtaining file. |
| instance link type is | Link type of packets. |
| instance interface name is | Name of the interface on which the packet header obtaining instance is configured. |
| instance type is | Type of packets whose headers are obtained.
|
| instance systemid is | System ID. |
| instance remain time length be deleted | Remaining time for deleting the packet headers. |
| Forward capture inbound instance number is | Number of inbound forward packet header obtaining instances. |
| Forward capture outbound instance number is | Number of outbound forward packet header obtaining instances. |
| Host capture instance number is | Number of host packet header obtaining instances. |
| packet NO | Sequence number of a packet header in the packet head obtaining instance. |
| packet length is | Length of each packet in the packet header obtaining file. |
| capture-time | Time when the packet was obtained. The bold part of the seven lines following the parameter in the command output is the content of the obtained packet. |
| L2 Type | Layer 2 protocol type. |
| Ethernet type/length | Ethernet type. |
| Source Mac | Source MAC address. |
| Source Ip | Source IP address. |
| Source Port | Source port number. |
| Dest Mac | Destination MAC address. |
| Dest Ip | Destination IP address. |
| Dest Port | Destination port number. |
| L3 Type | Layer 3 protocol type. |
| L4 Type | Layer 4 protocol type. |
| PeVlanid | Outer VLAN ID of obtained packets. |
| CeVlanid | Inner VLAN ID of obtained packets. |
| Protocol Num | Protocol number. |
| TOS/DSCP | TOS/DSCP value. |
| TTL | TTL of obtained packets. |
| Traffic Class/DSCP | Traffic class/DSCP value. |
| Flow Label | IPv6 flow label. |
| Hop Limit | Hop count limit. |