Brocade Multi-Service IronWare Switching Configuration Gui Manual de usuario Pagina 119

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Multi-Service IronWare Switching Configuration Guide 89
53-1003036-02
General operating principles
4
Brocade 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 Brocade device (show lldp
local-info).
Chassis ID (MAC address): 0012.f233.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 Table 21. A port ID subtype,
included in the TLV, indicates how the port is being referenced in the Port ID field.
Brocade 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 Brocade device (show lldp
local-info).
Port ID (MAC address): 0012.f233.e2d3
TTL value
The Time to Live (TTL) Value is the length of time the receiving device should maintain the
information acquired through LLDP in its MIB.
3Port component
4MAC address
5 Network address
6 Interface name
7 Locally assigned
8 – 255 Reserved
TABLE 21 Port ID subtypes
ID Subtype Description
0Reserved
1Interface alias
2Port component
3MAC address
4 Network address
5 Interface name
6 Agent circuit ID
7 Locally assigned
8 – 255 Reserved
TABLE 20 Chassis ID subtypes (Continued)
ID Subtype Description
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