Provisioning Link Layer Discovery Protocol
The Cisco Discovery
Protocol (CDP) is a device discovery protocol that runs over Layer 2 (the data
link layer) on all Cisco-manufactured devices (routers, bridges, access
servers, and switches). CDP allows network management applications to
automatically discover and learn about other Cisco devices connected to the
network.
To support non-Cisco
devices and to allow for interoperability between other devices, the switch
supports the IEEE 802.1AB Link Layer Discovery Protocol (LLDP). LLDP is a
neighbor discovery protocol that is used for network devices to advertise
information about themselves to other devices on the network. This protocol
runs over the data link layer, which allows two systems running different
network layer protocols to learn about each other.
LLDP supports a set of
attributes that it uses to discover neighbor devices. These attributes contain
type, length, and value descriptions and are referred to as TLVs. LLDP
supported devices can use TLVs to receive and send information to their
neighbors. Details such as configuration information, device capabilities, and
device identity can be advertised using this protocol.
By default, LLDP is
disabled globally and on interfaces.
The switch supports
these basic management TLVs. These are mandatory LLDP TLVs.
-
Port description
TLV
-
System name TLV
-
System description
-
System
capabilities TLV
-
Management address
TLV
These
organizationally-specific LLDP TLVs are also advertised to support LLDP-MED.
How To Configure
LLDP
Setting LLDP Global
Configuration
| Command or Action | Purpose |
---|
Step 1 | Configure NID
Example:
UCS# Configure NID 1
| Opens a new session for NID 1.
|
Step 2 | ProvisionLldpPortType
Example:
UCS# ProvisionLldpPortType
| Enters the ProvisionLldpPortType mode.
|
Step 3 | setLldpConfig
lldpGlobalConfiguration {global_state {enable |
disable} |hold_timelldp_hold_time |lldp_transmission_delay
value
|reinit_delay tx_reinit_value
timertx_value |tlv_select {mgmt_address |
port_description |
system_capabilities |
system_description |
system_name}
Example:
UCS(ProvisionLldpPortType)# setLldpConfig lldpGlobalConfiguration global_state enable
UCS(ProvisionLldpPortType)# setLldpConfig lldpGlobalConfiguration hold_time 5
UCS(ProvisionLldpPortType)# setLldpConfig lldpGlobalConfiguration lldp_transmission_delay 10
UCS(ProvisionLldpPortType)# setLldpConfig lldpGlobalConfiguration timer 10
UCS(ProvisionLldpPortType)# setLldpConfig lldpGlobalConfiguration reinit_delay 10
UCS(ProvisionLldpPortType)# setLldpConfig lldpGlobalConfiguration tlv_select system_description enable
UCS(ProvisionLldpPortType)# setLldpConfig lldpGlobalConfiguration tlv_select port_description enable
UCS(ProvisionLldpPortType)# setLldpConfig lldpGlobalConfiguration tlv_select management_address enable
UCS(ProvisionLldpPortType)# setLldpConfig lldpGlobalConfiguration tlv_select system_capabilities enable
UCS(ProvisionLldpPortType)# setLldpConfig lldpGlobalConfiguration tlv_select system_name enable
|
Sets the LLDP
global configuration.
- global_state—LLDP global state. This state is
either
enabled
or
disabled.
- hold_time—LLDP hold time before discarding the
configuration. The valid values are from 2 to 10 seconds. The default value is
4 seconds.
- lldp_transmission_delay—LLD Transmission delay
value. The valid values are from 1 to 8192. The default value is 2 seconds.
- reinit_delay—LLDP transmission re-initialization
delay. The valid values are from 1 to 10 seconds. The default value is 2
seconds.
- timer—Time between each LLDP frame transmitted in
seconds. The valid values are from 5 to 32768. The default value is 30 seconds.
- tlv_select—Transmission TLV.
|
Step 4 | setLldpConfig review
Example:
UCS(ProvisionLldpPortType)# setLldpConfig review
| Reviews the
setLldpConfig.
|
Step 5 | setLldpConfig commit
Example:
UCS(ProvisionLldpPortType)# setLldpConfig commit
| Sends the
setLldpConfig configuration to the
Cisco ME 1200 NID.
|
Step 6 | exit
Example:
UCS(ProvisionLldpPortType)# exit
UCS(ProvisionLldpPortType)#
| Exits from the
provisionLldpPortType mode.
|
What to Do Next
After the
configuration is sent to the
Cisco ME 1200 NID,
use the following
get command to
view the setLldpConfig configuration.
UCS(ProvisionLldpPortType)# getLldpConfig getLldpConfigRequest
UCS(ProvisionLldpPortType)# getLldpConfig review
Commands in queue:
getLldpConfig getLldpConfigRequest
UCS(ProvisionLldpPortType)# getLldpConfig commit
GetLldpConfig_Output.lldpGlobalConfiguration.global_state = true
GetLldpConfig_Output.lldpGlobalConfiguration.hold_time = 5
GetLldpConfig_Output.lldpGlobalConfiguration.timer = 10
GetLldpConfig_Output.lldpGlobalConfiguration.tlv_select.system_name = true
GetLldpConfig_Output.lldpGlobalConfiguration.tlv_select.system_description = true
GetLldpConfig_Output.lldpGlobalConfiguration.tlv_select.port_description = true
GetLldpConfig_Output.lldpGlobalConfiguration.tlv_select.management_address = true
GetLldpConfig_Output.lldpGlobalConfiguration.tlv_select.system_capabilities = true
GetLldpConfig_Output.lldpGlobalConfiguration.reinit_delay = 10
GetLldpConfig_Output.lldpGlobalConfiguration.lldp_transmission_delay = 10
GetLldpConfig Commit Success!!!
Setting LLDP
Configuration to Default
| Command or Action | Purpose |
---|
Step 1 | Configure NID
Example:
UCS# Configure NID 1
| Opens a new session for NID 1.
|
Step 2 | ProvisionLldpPortType
Example:
UCS# ProvisionLldpPortType
| Enters the ProvisionLldpPortType mode.
|
Step 3 | setLldpDefaults setLldpDefaultsRequest
Example:
UCS(ProvisionLldpPortType)# setLldpDefaults setLldpDefaultsRequest
|
Sets the LLDP
configuration to default values.
|
Step 4 | setLldpDefaults commit
Example:
UCS(ProvisionLldpPortType)# setLldpDefaults commit
| Sends the
setLldpDefaults configuration to the
Cisco ME 1200 NID.
|
Step 5 | exit
Example:
UCS(ProvisionLldpPortType)# exit
UCS(ProvisionLldpPortType)#
| Exits from the
ProvisionLldpPortType mode.
|
What to Do Next
After the
configuration is sent to the
Cisco ME 1200 NID,
use the following
get command to
view the setLldpDefaults configuration.
UCS(ProvisionLldpPortType)# getLldpDefaults getLldpDefaultsRequest
UCS(ProvisionLldpPortType)# getLldpDefaults review
Commands in queue:
getLldpDefaults getLldpDefaultsRequest
UCS(ProvisionLldpPortType)# getLldpDefaults commit
GetLldpDefaults_Output.lldpGlobalConfiguration.global_state = true
GetLldpDefaults_Output.lldpGlobalConfiguration.hold_time = 5
GetLldpDefaults_Output.lldpGlobalConfiguration.timer = 30
GetLldpDefaults_Output.lldpGlobalConfiguration.tlv_select.system_name = true
GetLldpDefaults_Output.lldpGlobalConfiguration.tlv_select.system_description = true
GetLldpDefaults_Output.lldpGlobalConfiguration.tlv_select.port_description = true
GetLldpDefaults_Output.lldpGlobalConfiguration.tlv_select.management_address = true
GetLldpDefaults_Output.lldpGlobalConfiguration.tlv_select.system_capabilities = true
GetLldpDefaults_Output.lldpGlobalConfiguration.reinit_delay = 2
GetLldpDefaults_Output.lldpGlobalConfiguration.lldp_transmission_delay = 10
GetLldpDefaults Commit Success!!!
Setting LLDP Port
Configuration
| Command or Action | Purpose |
---|
Step 1 | Configure NID
Example:
UCS# Configure NID 1
| Opens a new session for NID 1.
|
Step 2 | ProvisionLldpPortType
Example:
UCS# ProvisionLldpPortType
| Enters the ProvisionLldpPortType mode.
|
Step 3 | setLldpportconfig
lldpPortConfiguration {lldp_receive_enable {disable |
enable} |lldp_transmit_enable {disable |
enable} |
port_numberport_number}
Example:
UCS(ProvisionLldpPortType)# setLldpPortConfig lldpPortConfiguration port_number 3
UCS(ProvisionLldpPortType)# setLldpPortConfig lldpPortConfiguration lldp_receive_enable disable
UCS(ProvisionLldpPortType)# setLldpPortConfig lldpPortConfiguration lldp_transmit_enable disable
|
Sets the LLDP
port configuration.
|
Step 4 | setLldpPortConfig review
Example:
UCS(ProvisionLldpPortType)# setLldpPortConfig review
| Reviews the
setLldpPortConfig.
|
Step 5 | setLldpPortConfig commit
Example:
UCS(ProvisionLldpPortType)# setLldpConfig commit
| Sends the
setLldpConfig configuration to the
Cisco ME 1200 NID.
|
Step 6 | exit
Example:
UCS(ProvisionLldpPortType)# exit
| Exits from the
ProvisionLldpPortType mode.
|
What to Do Next
After the
configuration is sent to the
Cisco ME 1200 NID,
use the following
get command to
view the setLldpPortConfig configuration.
UCS(ProvisionLldpPortType)# getLldpportConfig physicalPortNum 3
UCS(ProvisionLldpPortType)# getLldpportConfig review
Commands in queue:
getLldpConfig physicalPortNum 3
UCS(ProvisionLldpPortType)# getLldpportConfig commit
GetLldpPortConfig_Output.lldpPortConfiguration.port_number = 3
GetLldpPortConfig_Output.lldpPortConfiguration.lldp_transmit_enable = false
GetLldpPortConfig_Output.lldpPortConfiguration.lldp_receive_enable = false
GetLldpPortConfig Commit Success!!!
Setting LLDP Port
Configuration to Default
| Command or Action | Purpose |
---|
Step 1 | Configure NID
Example:
UCS# Configure NID 1
| Opens a new session for NID 1.
|
Step 2 | ProvisionLldpPortType
Example:
UCS# ProvisionLldpPortType
| Enters the ProvisionLldpPortType mode.
|
Step 3 | setlldpportdefaults physicalPortNumport_number
Example:
UCS(ProvisionLldpPortType)# setlldpportdefaults physicalPortNum 3
|
Sets the LLDP
port configuration to default values.
- physicalPortNum—Port number for which the LLDP
configuration is set to default. The valid values are from 1 to 6.
|
Step 4 | setlldpportdefaults commit
Example:
UCS(ProvisionLldpPortType)# setlldpportdefaults commit
| Sends the
setlldpportdefaults configuration to the
Cisco ME 1200 NID.
|
Step 5 | exit
Example:
UCS(ProvisionLldpPortType)# exit
| Exits from the
ProvisionLldpPortType mode.
|
What to Do Next
After the
configuration is sent to the
Cisco ME 1200 NID,
use the following
get command to
view the setlldpportdefaults configuration.
UCS(ProvisionLldpPortType)# getLldpportdefaults physicalPortNum 3
UCS(ProvisionLldpPortType)# getLldpportdefaults review
Commands in queue:
getLldpportdefaults physicalPortNum 3
UCS(ProvisionLldpPortType)# getLldpportdefaults commit
GetLldpPortDefaults_Output.lldpPortConfiguration.port_number = 3
GetLldpPortDefaults_Output.lldpPortConfiguration.lldp_transmit_enable = true
GetLldpPortDefaults_Output.lldpPortConfiguration.lldp_receive_enable = true
GetLldpPortDefaults Commit Success!!!
Other Commands For
LLDP Configuration
Clearing LLDP
Counters
clearLldpCounters
UCS(ProvisionLldpPortType)# clearLldpCounters physicalPortNum 3
Displaying LLDP
Neighbors
showlldpneighbors physicalPortNumphysical_port_number
UCS(ProvisionLldpPortType)# showlldpneighbors physicalPortNum 3
UCS(ProvisionLldpPortType)# showlldpneighbors commit
ShowLldpNeighbors_Output.lldpNeighborInformation.local_port_id = 3
ShowLldpNeighbors_Output.lldpNeighborInformation.chassis_id = '18-9C-5D-A7-F4-1C'
ShowLldpNeighbors_Output.lldpNeighborInformation.remote_port_id = 'Gi0/3'
ShowLldpNeighbors_Output.lldpNeighborInformation.remote_port_description = 'GigabitEthernet0/3'
ShowLldpNeighbors_Output.lldpNeighborInformation.remote_system_name = 'IRF-Whales-1'
ShowLldpNeighbors_Output.lldpNeighborInformation.remote_system_capabilities = 'Bridge(+), Router(+)'
ShowLldpNeighbors_Output.lldpNeighborInformation.remote_system_description = 'Cisco IOS Software, ME360x Software (ME360x-UNIVERSAL-M), Version 15.4(2)SN, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2014 by Cisco Systems, Inc.
Compiled Fri 21-Mar-14 09:12 by prod_rel_team'
ShowLldpNeighbors_Output.lldpNeighborInformation.remote_management_IP = '7.3.9.13 (IPv4)'
ShowLldpNeighbors_Output.lldpNeighborInformation.remote_management_IPv6 = ''
ShowLldpNeighbors Commit Success!!!
Displaying LLDP
Statistics
showlldpstatistics physicalPortNumphysical_port_number
UCS(ProvisionLldpPortType)# showlldpstatistics physicalPortNum 3
UCS(ProvisionLldpPortType)# showlldpstatistics commit
ShowLldpStatistics_Output.lldpPortStatistics.global_counters.total_neighbor_entries_added = 1
ShowLldpStatistics_Output.lldpPortStatistics.local_counters.Tx_Frames = 17
ShowLldpStatistics_Output.lldpPortStatistics.local_counters.Rx_Frames = 0
ShowLldpStatistics_Output.lldpPortStatistics.local_counters.Rx_Errors = 0
ShowLldpStatistics_Output.lldpPortStatistics.local_counters.Rx_Frames_Discarded = 0
ShowLldpStatistics_Output.lldpPortStatistics.local_counters.TLVs_Discarded = 0
ShowLldpStatistics_Output.lldpPortStatistics.local_counters.TLVs_Unrecognized = 0
ShowLldpStatistics_Output.lldpPortStatistics.local_counters.Org_Discarded = 0
ShowLldpStatistics_Output.lldpPortStatistics.local_counters.Age_Outs = 0
ShowLldpStatistics Commit Success!!!