Hex Packet Decoder

Cisco_ea:b8:81 → CDP/VTP/DTP/PAgP/UDLD UDLD Device ID: FOC1031Z7JG Port ID: Gi0/1

0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
01	00	0C	CC	CC	CC	00	19	06	EA	B8	81	00	58	AA	AA
03	00	00	0C	01	11	21	01	79	56	00	01	00	0F	46	4F
43	31	30	33	31	5A	37	4A	47	00	02	00	09	47	69	30
2F	31	00	03	00	1C	00	00	00	01	00	0B	46	4F	43	31
30	32	35	58	34	57	33	00	05	46	61	30	2F	31	00	04
00	05	0F	00	05	00	05	05	00	06	00	06	53	31	00	07
00	08	00	00	00	08

3 protocols in packet:

Ethernet

LLC

UDLD

Frame 1: 102 bytes on wire (816 bits)
- Section number: 1
- Interface id: 0 (Interface, hpd0)
  - Interface name: Interface, hpd0
- Encapsulation type: Ethernet (1)
- Arrival Time: Jan 17, 2024 15:01:06.000001000 CET
- Time shift for this packet: 0.000000000 seconds
- Epoch Time: 1705500066.000001000 seconds
- Time delta from previous captured frame: 0.000000000 seconds
- Time delta from previous displayed frame: 0.000000000 seconds
- Time since reference or first frame: 0.000000000 seconds
- Frame Number: 1
- Frame Length: 102 bytes (816 bits)
- Capture Length: 102 bytes (816 bits)
- Frame is marked: False
- Frame is ignored: False
- Protocols in frame: eth:llc:udld
IEEE 802.3 Ethernet
- Destination: CDP/VTP/DTP/PAgP/UDLD (01:00:0c:cc:cc:cc)
  - Address: CDP/VTP/DTP/PAgP/UDLD (01:00:0c:cc:cc:cc)
  - .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
  - .... ...1 .... .... .... .... = IG bit: Group address (multicast/broadcast)
- Source: Cisco_ea:b8:81 (00:19:06:ea:b8:81)
  - Address: Cisco_ea:b8:81 (00:19:06:ea:b8:81)
  - .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
  - .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
- Length: 88
Logical-Link Control
- DSAP: SNAP (0xaa)
  - 1010 101. = SAP: SNAP
  - .... ...0 = IG Bit: Individual
- SSAP: SNAP (0xaa)
  - 1010 101. = SAP: SNAP
  - .... ...0 = CR Bit: Command
- Control field: U, func=UI (0x03)
  - 000. 00.. = Command: Unnumbered Information (0x00)
  - .... ..11 = Frame type: Unnumbered frame (0x3)
- Organization Code: 00:00:0c (Cisco Systems, Inc)
- PID: UDLD (0x0111)
Unidirectional Link Detection
- 001. .... = Version: 1
- ...0 0001 = Opcode: Probe (1)
- Flags: 1
  - .... ...1 = Recommended timeout: 0x1
  - .... ..0. = ReSynch: 0x0
- Checksum: 0x7956
- Device ID: FOC1031Z7JG
  - Type: Device ID (0x0001)
  - Length: 15
  - Device ID: FOC1031Z7JG
- Port ID: Gi0/1
  - Type: Port ID (0x0002)
  - Length: 9
  - Sent through Interface: Gi0/1
- Type: Echo, length: 28
  - Type: Echo (0x0003)
  - Length: 28
  - Data: 00000001000b464f43313032355834573300054661302f31
- Type: Message interval, length: 5
  - Type: Message interval (0x0004)
  - Length: 5
  - Data: 0f
- Type: Timeout interval, length: 5
  - Type: Timeout interval (0x0005)
  - Length: 5
  - Data: 05
- Type: Device name, length: 6
  - Type: Device name (0x0006)
  - Length: 6
  - Data: 5331
- Type: Sequence number, length: 8
  - Type: Sequence number (0x0007)
  - Length: 8
  - Data: 00000008

HPD v3.9 by Salim Gasmi. This site is powered by Wireshark. You can also check my other tools.
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0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
01	00	0C	CC	CC	CC	00	19	06	EA	B8	81	00	58	AA	AA
03	00	00	0C	01	11	21	01	79	56	00	01	00	0F	46	4F
43	31	30	33	31	5A	37	4A	47	00	02	00	09	47	69	30
2F	31	00	03	00	1C	00	00	00	01	00	0B	46	4F	43	31
30	32	35	58	34	57	33	00	05	46	61	30	2F	31	00	04
00	05	0F	00	05	00	05	05	00	06	00	06	53	31	00	07
00	08	00	00	00	08

0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
01	00	0C	CC	CC	CC	00	19	06	EA	B8	81	00	58	AA	AA
03	00	00	0C	01	11	21	01	79	56	00	01	00	0F	46	4F
43	31	30	33	31	5A	37	4A	47	00	02	00	09	47	69	30
2F	31	00	03	00	1C	00	00	00	01	00	0B	46	4F	43	31
30	32	35	58	34	57	33	00	05	46	61	30	2F	31	00	04
00	05	0F	00	05	00	05	05	00	06	00	06	53	31	00	07
00	08	00	00	00	08

Hex Packet Decoder - 7,121,380 packets decoded.

0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
01	00	0C	CC	CC	CC	00	19	06	EA	B8	81	00	58	AA	AA
03	00	00	0C	01	11	21	01	79	56	00	01	00	0F	46	4F
43	31	30	33	31	5A	37	4A	47	00	02	00	09	47	69	30
2F	31	00	03	00	1C	00	00	00	01	00	0B	46	4F	43	31
30	32	35	58	34	57	33	00	05	46	61	30	2F	31	00	04
00	05	0F	00	05	00	05	05	00	06	00	06	53	31	00	07
00	08	00	00	00	08