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Home Documentation Junos OS Junos CLI Reference CLI Reference A

Junos CLI Reference

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active-leasequery (DHCP Local Server)

date_range 23-Oct-24
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Syntax

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active-leasequery {
             topology-discovery;
             peer-address {
                address;
               }
             timeout timeout;
             idle-timeout idle-timeout; 
             exclude-interface interface-name; 
       }

Hierarchy Level

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[edit system services dhcp-local-server]
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[edit system services dhcp-local-server dhcpv6]

Description

Subscriber redundancy on DHCP server focuses on subscriber synchronization between the peer servers using active leasequery. If you configure active leasequery for the DHCP server, the peer servers establishes TCP connection and sends active leasequery.

Options

idle-timeout idle-timeout

Configure the idle time out value in seconds for the connection between the peer servers.

  • Range: 10 thru 3600 seconds

  • Default: 60 seconds

peer-address address

Configure IPv4 or IPv6 address of the peer DHCP servers. You can configure maximum five IP addresses.

timeout timeout

Configure the TCP read/write block timeout value to terminate and restart the TCP connection.

  • Range: 10 thru 3600 seconds

  • Default: 60 seconds

topology-discovery

Enable the topology discovery option.

exclude-interface interface-name

(Optional) Exclude interface participating in active leasequery.

Note: Use the exclude-interface interface-name option to configure chassis based DHCP redundancy feature for MX480 access models. This feature provides the additional functionality of 1:1 chassis based active lease query, bulk lease query (ALQ/BLQ) redundancy for non-participating underlying subscriber interfaces without the need to configure topology-discovery.

Required Privilege Level

admin—To view this statement in the configuration.

admin-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 21.4R1.

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