Cisco SPA301 Administration Manual page 160

Configuring Security, Quality, and Network Features
Configuring VLAN Settings
Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide
IEEE 802.3 MAC/PHY Configuration/Status TLV
The TLV is not for auto-negotiation, but for troubleshooting purposes. For the
incoming LLDPDU, the TLV is ignored and not validated. For the outgoing LLDPDU,
for the TLV, the octet value auto-negotiation support/status should be:
• Bit 0—Set to 1 to indicate the auto-negotiation support feature is supported.
• Bit 1—Set to 1 to indicate auto-negotiation status is enabled.
• Bit 2-7—Set to 0.
The bit values for the 2 octets PMD auto-negotiation advertised capability field
should be set to:
• Bit 13—10BASE-T half duplex mode
• Bit 14—10BASE-T full duplex mode
• Bit 11—100BASE-TX half duplex mode
• Bit 10—100BASE-TX full duplex mode
• Bit 15—Unknown
Bit 10, 11, 13 and 14 should be set.
The value for 2 octets operational MAU type should be set to reflect the real
operational MAU type:
• 16—100BASE-TX full duplex
• 15—100BASE-TX half duplex
• 11—10BASE-T full duplex
• 10—10BASE-T half duplex
For example, in most cases, the phone is set to 100BASE-TX full duplex. The value
16 should then be set. The TLV is optional for a wired network and not applicable
for a wireless network. The phone will send out this TLV only when in wired mode.
When the phone is not set for auto-negotiation but specific speed/duplexity, for
the outgoing LLDPDU TLV, bit 1 for the octet value auto-negotiation support/status
should be clear (0) to indicate auto-negotiation is disabled. The 2 octets PMD auto-
negotiation advertised capability field should be set to 0x8000 to indicate
unknown. The Cisco SPA525G/525G2 allows the administrator to set the switch
operational mode to auto-negotiation or to a specific speed/duplexity.
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