802.3 capabilities
Except for Power-via-MDI information, the RUCKUS device will advertise the following 802.3 attributes when LLDP is enabled on a global basis:
Link aggregation TLV
The link-aggregation time, length, value (TLV) indicates the following:
- Whether the link is capable of being aggregated
- Whether the link is currently aggregated
- The LAG interface
RUCKUS devices advertise link aggregation information about standard link aggregation (LACP) as well as static trunk configuration.
By default, link-aggregation information is automatically advertised when LLDP is enabled on a global basis. To disable this advertisement, enter a command such as the following.
device(config)#no lldp advertise link-aggregation ports e 1/2/12
The link aggregation advertisement will appear similar to the following on the remote
device, and in the CLI display output on the
RUCKUS device (show lldp local-info ).
Link aggregation: not capable
MAC and PHY configuration status
The MAC and PHY configuration and status TLV includes the following information:
- Auto-negotiation capability and status
- Speed and duplex mode
- Flow control capabilities for auto-negotiation
- maximum port speed advertisement
- If applicable, indicates if the above settings are the result of auto-negotiation during link initiation or of a manual set override action
The advertisement reflects the effects of the following CLI commands:
By default, the MAC/PHY configuration and status information are automatically advertised when LLDP is enabled on a global basis. To disable this advertisement, enter a command such as the following.
device(config)#no lldp advertise mac-phy-config-status ports e 1/2/4 to 1/2/12
The MAC/PHY configuration advertisement will appear similar to the following on the
remote device, and in the CLI display output on the
RUCKUS device (show lldp local-info ).
+ 802.3 MAC/PHY : auto-negotiation enabled Advertised capabilities: 10baseT-HD, 10baseT-FD, 100baseTX-HD, 100baseTX-FD, fdxSPause, fdxBPause, 1000baseT-HD, 1000baseT-FD Operational MAU type: 100BaseTX-FD
Maximum frame size
The maximum frame size TLV provides the maximum 802.3 frame size capability of the
port. This value is expressed in octets and includes the four-octet Frame Check Sequence
(FCS). The default maximum frame size is 1522. The advertised value may change depending
on whether the
aggregated-vlan or
jumbo CLI commands are in effect.
By default, the maximum frame size is automatically advertised when LLDP is enabled on a global basis. To disable this advertisement, enter a command such as the following.
device(config)#no lldp advertise max-frame-size ports e 1/2/4 to 1/2/12
The maximum frame size advertisement will appear similar to the following on the
remote device, and in the CLI display output on the
RUCKUS device (show lldp local-info ).
Maximum frame size: 1522 octets
Power-via-MDI
The power-via-MDI TLV provides general information about Power over Ethernet (POE) capabilities and status of the port. It indicates the following:
- POE capability (supported or not supported)
- POE status (enabled or disabled)
- Power Sourcing Equipment (PSE) power pair - indicates which pair of wires is in use and whether the pair selection can be controlled. The RUCKUS implementation always uses pair A, and cannot be controlled.
- Power class - Indicates the range of power that the connected powered device has negotiated or requested.
To advertise the power-via-MDI information, enter a command such as the following.
device(config)#lldp advertise power-via-mdi ports e 1/2/4 to 1/2/12
The power-via-MDI advertisement will appear similar to the following on the remote
device, and in the CLI display output on the
RUCKUS device (show lldp local-info ).
+ 802.3 Power via MDI: PSE port, power enabled, class 0
Power Pair : A (not controllable)