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8.3.17.0 - Force10 Networks

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LLDP Operation<br />

On an Aggregator, LLDP operates as follows:<br />

• LLDP is enabled by default.<br />

• LLDPDUs are transmitted and received by default. LLDPDUs are transmitted periodically. The default<br />

interval is 30 seconds.<br />

• LLDPDU information received from a neighbor expires after the default Time to Live (TTL) value:<br />

120 seconds.<br />

• FTOS supports up to eight neighbors per interface.<br />

• FTOS supports a maximum of 8000 total neighbors per system. If the number of interfaces multiplied<br />

by eight exceeds the maximum, the system does not configure more than 8000.<br />

• LLDP is not hitless.<br />

Viewing the LLDP Configuration<br />

To display the LLDP configuration, use the show config command in either CONFIGURATION or<br />

INTERFACE mode (Figure 14-7) and (Figure 14-8).<br />

Figure 14-7. Viewing LLDP Global Configurations<br />

R1(conf)#protocol lldp<br />

R1(conf-lldp)#show config<br />

!<br />

protocol lldp<br />

advertise dot1-tlv port-protocol-vlan-id port-vlan-id<br />

advertise dot3-tlv max-frame-size<br />

advertise management-tlv system-capabilities system-description<br />

hello 10<br />

no disable<br />

R1(conf-lldp)#<br />

Figure 14-8. Viewing LLDP Interface Configurations<br />

R1(conf)#interface tengigabitethernet 1/31<br />

R1(conf-if-te-1/31)#show config<br />

!<br />

interface TenGigabitEthernet 1/31<br />

no ip address<br />

!<br />

no shutdown<br />

R1(conf-if-te-1/31)#protocol lldp<br />

R1(conf-if-te-1/31-lldp)#show config<br />

!<br />

protocol lldp<br />

R1(conf-if-te-1/31-lldp)#<br />

Link Layer Discovery Protocol (LLDP) | 173

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