User manual

C HAPTER 15 | Basic Administration Protocols
Link Layer Discovery Protocol
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ES-2000 Series
◆ System Description – A textual description of the network entity.
◆ Port Type – Indicates the basis for the identifier that is listed in the
Port ID field.
◆ Port Description – A string that indicates the port’s description. If RFC
2863 is implemented, the ifDescr object should be used for this field.
◆ Port ID – A string that contains the specific identifier for the port from
which this LLDPDU was transmitted.
◆ System Capabilities Supported – The capabilities that define the
primary function(s) of the system. (See Table 22, "System
Capabilities," on page 214.)
◆ System Capabilities Enabled – The primary function(s) of the
system which are currently enabled. (See Table 22, "System
Capabilities," on page 214.)
◆ Management Address List – The management addresses for this
device. Since there are typically a number of different addresses
associated with a Layer 3 device, an individual LLDP PDU may contain
more than one management address TLV.
If no management address is available, the address should be the MAC
address for the CPU or for the port sending this advertisement.
Port Details – 802.1 Extension Information
◆ Remote Port VID – The port’s default VLAN identifier (PVID) indicates
the VLAN with which untagged or priority-tagged frames are
associated.
◆ Remote Port-Protocol VLAN List – The port-based protocol VLANs
configured on this interface, whether the given port (associated with
the remote system) supports port-based protocol VLANs, and whether
the port-based protocol VLANs are enabled on the given port associated
with the remote system.
Table 23: Port ID Subtype
ID Basis Reference
Interface alias IfAlias (IETF RFC 2863)
Chassis component EntPhysicalAlias when entPhysClass has a value of
‘chassis(3)’ (IETF RFC 2737)
Port component EntPhysicalAlias when entPhysicalClass has a value ‘port(10)’
or ‘backplane(4)’ (IETF RFC 2737)
MAC address MAC address (IEEE Std 802-2001)
Network address networkAddress
Interface name ifName (IETF RFC 2863)
Agent circuit ID agent circuit ID (IETF RFC 3046)
Locally assigned locally assigned