ZyXEL Communications GS1920v2 Series User Manual page 291

Chapter 33 Link Layer Discovery Protocol (LLDP)
The following table describes the labels in this screen.
Table 133 Advanced Application > LLDP > LLDP Local Status > LLDP Local Port Status Detail
L ABEL DESC RIPT IO N
Basic TLV These are the Basic TLV flags
Port ID TLV The port ID TLV identifies the specific port that transmitted the LLDP frame.
•
Po rt ID Sub type
•
Po rt ID
Port Description T his displays the local port description.
TLV
Dot1 TLV
Port VLAN ID This displays the VLAN ID sent by the IEEE 802.1 Port VLAN ID TLV.
TLV
Port-Protocol This displays the IEEE 802.1 Port Protocol VLAN ID TLVs, which indicates whether the VLAN is
VLAN ID TLV
enabled and supported.
Dot3 TLV
MAC PHY The MAC/PHY Configuration/Status TLV advertises the bit-rate and duplex capability of the
Configuration &
sending 802.3 node. It also advertises the current duplex and bit-rating of the sending node.
Status TLV
Lastly, it advertises whether these setting were the result of auto-negotiation during link
initiation or manual override.
•
AN Suppo rte d
•
AN Ena b le d
•
AN Adve rtise d C a pa b ility
•
O pe r MAU T ype
Link The Link Aggregation TLV indicates whether the link is capable of being aggregated,
Aggregation
whether the link is currently in an aggregation, and if in an aggregation, the port
TLV
identification of the aggregation.
•
Ag g re g a tio n C a pa b ility
•
Ag g re g a tio n Sta tus
•
Ag g re g a tio n Po rt ID
Max Frame Size This displays the maximum supported frame size in octets.
TLV
MED TLV LLDP Media Endpoint Discovery (MED) is an extension of LLDP that provides additional
capabilities to support media endpoint devices. MED enables advertisement and discovery
of network policies, device location discovery to allow creation of location databases, and
information for troubleshooting.
Capabilities TLV This field displays which LLDP-MED TLV are capable to transmit on the Switch.
• Ne two rk Po lic y
• L o c a tio n
• Exte nd Po we r via MDI PSE
• Exte nd Po we r via MDI PD
• Inve nto ry Ma na g e m e nt
Device Type This is the LLDP-MED device class. The Zyxel Switch device type is:
TLV
• Network Connectivity
: This shows how the port is identified.
: This is the ID of the port.
- Displays if the port supports or does not support auto-negotiation.
- The current auto-negotiation status of the port.
- The auto-negotiation capabilities of the port.
- The current Medium Attachment Unit (MAU) type of the port
— The current aggregation capability of the port.
— The current aggregation status of the port.
— The aggregation ID of the current port.
GS1920v2 Series User's Guide
291