General system information for LLDP

Except for the system description, the RUCKUS device will advertise the following system information when LLDP is enabled on a global basis:

  • Management address
  • Port description
  • System capabilities
  • System description (not automatically advertised)
  • System name

Management address

A management address is normally an IPv4 or IPv6 address that can be used to manage the device. Management address advertising has two modes: default, or explicitly configured. The default mode is used when no addresses are configured to be advertised for a given port. If any addresses are configured to be advertised for a given port, then only those addresses are advertised. This applies across address types, so for example, if just one IPv4 address is explicitly configured to be advertised for a port, then no IPv6 addresses will be advertised for that port (since none were configured to be advertised), even if IPv6 addresses are configured within the system.

If no management address is explicitly configured to be advertised, the RUCKUS device will use the first available IPv4 address and the first available IPv6 address (so it may advertise IPv4, IPv6 or both). A Layer 3 switch will select the first available address of each type from those configured on the following types of interfaces, in the following order of preference:

  • Physical port on which LLDP will be transmitting the packet
  • Virtual router interface (VE) on a VLAN that the port is a member of
  • Dedicated management port

For IPv6 addresses, link-local and anycast addresses will be excluded from these searches.

If no IP address is configured on any of the above, the port's current MAC address will be advertised.

To advertise a IPv4 management address, enter a command such as the following:

device(config)# lldp advertise management-address ipv4 10.157.2.1 ports e 1/1/4

The management address will appear similar to the following on the remote device, and in the CLI display output on the RUCKUS device (show lldp local-info ):

Management address (IPv4): 10.157.2.1

To support an IPv6 management address, there is a similar command that has equivalent behavior as the IPv4 command.

To advertise an IPv6 management address, enter a command such as the following:

device(config)#lldp advertise management-address ipv6 2001:DB8::90 ports e 1/2/7

Port description

The port description TLV identifies the port from which the LLDP agent transmitted the advertisement. The port description is taken from the ifDescr MIB object from MIB-II.

By default, the port description is automatically advertised when LLDP is enabled on a global basis. To disable advertisement of the port description, enter a command such as the following.

device(config)#no lldp advertise port-description ports e 1/2/4 to 1/2/12

The port description will appear similar to the following on the remote device, and in the CLI display output on the RUCKUS device (show lldp local-info ).

Port description: "GigabitEthernet20"

System capabilities

The system capabilities TLV identifies the primary functions of the device and indicates whether these primary functions are enabled. The primary functions can be one or more of the following (more than one for example, if the device is both a bridge and a router):

  • Repeater
  • Bridge
  • WLAN access point
  • Router
  • Telephone
  • DOCSIS cable device
  • Station only (devices that implement end station capability)
  • Other

System capabilities for RUCKUS devices are based on the type of software image in use (for example, Layer 2 switch or Layer 3 router). The enabled capabilities will be the same as the available capabilities, except that when using a router image (base or full Layer 3), if the global route-only feature is turned on, the bridge capability will not be included, since no bridging takes place.

By default, the system capabilities 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 system-capabilities ports e 1/2/4 to 1/2/12

The system capabilities will appear similar to the following on the remote device, and in the CLI display output on the RUCKUS device (show lldp local-info).

System capabilities :   bridge
Enabled capabilities:   bridge

System description

The system description is the network entity, which can include information such as the product name or model number, the version of the system hardware type, the software operating system level, and the networking software version. The information corresponds to the sysDescr MIB object in MIB-II.

To advertise the system description, enter a command such as the following.

device(config)# lldp advertise system-description ports e 1/2/4 to 1/2/12

The system description will appear similar to the following on the remote device, and in the CLI display output on the RUCKUS device (show lldp local-info ).

+ System description  : "RUCKUS Wireless, Inc.,ICX7550_L3_SOFT_PACKAGE,
SW: Version 08.0.90q030T213 Compiled on Thu Jul 16 06:27:06 2015 labeled as ICXR08090	
Note: The contents of the show command output will vary depending on which TLVs are configured to be advertised.

         

System name

The system name is the system administratively assigned name, taken from the sysName MIB object in MIB-II. The sysName MIB object corresponds to the name defined with the CLI command hostname.

By default, the system name 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 system-name ports e 1/2/4 to 1/2/12

The system name will appear similar to the following on the remote device, and in the CLI display output on the RUCKUS device (show lldp local-info ).

System name:  "ICX7550SP-ADV Router"