Brocade TurboIron 24X Series Configuration Guide User Manual
Page 226
192
Brocade TurboIron 24X Series Configuration Guide
53-1003053-01
General operating principles
Chassis ID
The Chassis ID identifies the device that sent the LLDP packets.
There are several ways in which a device may be identified. A chassis ID subtype, included in the
TLV and shown in
, indicates how the device is being referenced in the Chassis ID field.
Devices use chassis ID subtype 4, the base MAC address of the device. Other third party devices
may use a chassis ID subtype other than 4. The chassis ID will appear similar to the following on
the remote device, and in the CLI display output on the device (show lldp local-info).
Chassis ID (MAC address): 0000.0033.e2c0
The chassis ID TLV is always the first TLV in the LLDPDU.
Port ID
The Port ID identifies the port from which LLDP packets were sent.
There are several ways in which a port may be identified, as shown in
. A port ID subtype,
included in the TLV, indicates how the port is being referenced in the Port ID field.
Devices use port ID subtype 3, the permanent MAC address associated with the port. Other third
party devices may use a port ID subtype other than 3. The port ID appears similar to the following
on the remote device, and in the CLI display output on the device (show lldp local-info).
TABLE 40
Chassis ID subtypes
ID subtype
Description
0
Reserved
1
Chassis component
2
Interface alias
3
Port component
4
MAC address
5
Network address
6
Interface name
7
Locally assigned
8 – 255
Reserved
TABLE 41
Port ID subtypes
ID subtype
Description
0
Reserved
1
Interface alias
2
Port component
3
MAC address
4
Network address
5
Interface name
6
Agent circuit ID
7
Locally assigned
8 – 255
Reserved