protocol-master
Syntax
protocol-master (inet | inet6);
Hierarchy Level
[edit bridge-domains
name forwarding-options
dhcp-relay
dual-stack-group dual-stack-group-name],
[edit forwarding-options dhcp-relay dhcpv6 group
name dual-stack-group dual-stack-group-name],
[edit logical-systems
name bridge-domains
name forwarding-options dhcp-relay dhcpv6 group
name dual-stack-group dual-stack-group-name],
[edit logical-systems
name bridge-domains
name forwarding-options dhcp-relay
dual-stack-group dual-stack-group-name],
[edit logical-systems
name forwarding-options
dhcp-relay dhcpv6 group
name dual-stack-group dual-stack-group-name],
[edit logical-systems name forwarding-options
dhcp-relay dual-stack-group],
[edit logical-systems
name system
services dhcp-local-server
dual-stack-group dual-stack-group-name],
[edit logical-systems
name vlans
name forwarding-options dhcp-relay dhcpv6 group
name dual-stack-group dual-stack-group-name],
[edit logical-systems
name vlans
name forwarding-options dhcp-relay
dual-stack-group dual-stack-group-name],
[edit routing-instances
name bridge-domains
name forwarding-options dhcp-relay dhcpv6 group
name dual-stack-group dual-stack-group-name],
[edit routing-instances
name bridge-domains
name forwarding-options dhcp-relay
dual-stack-group dual-stack-group-name],
[edit routing-instances
name forwarding-options
dhcp-relay dhcpv6 group
name dual-stack-group dual-stack-group-name],
[edit routing-instances
name forwarding-options
dhcp-relay
dual-stack-group dual-stack-group-name],
[edit routing-instances
name system
services dhcp-local-server
dual-stack-group dual-stack-group-name],
[edit routing-instances
name vlans name forwarding-options dhcp-relay dhcpv6 group
name dual-stack-group dual-stack-group-name],
[edit routing-instances
name vlans name forwarding-options dhcp-relay
dual-stack-group dual-stack-group-name],
[edit vlans
name forwarding-options
dhcp-relay dhcpv6 group
name dual-stack-group dual-stack-group-name],
[edit vlans
name forwarding-options
dhcp-relay
dual-stack-group dual-stack-group-name]
Release Information
Statement introduced in Junos OS Release
17.3.
Description
Select family as protocol primary. In some customer
use cases, CPE devices have reachability to multiple BNG routers for
load sharing. The CPE’s DHCP client broadcasts a DHCP protocol
handshake to the reachable routers; more than one router may respond.
In a DHCP dual-stack environment, the DHCPv4 and DHCPv6 protocol handshakes
are independent of each other, meaning that each arm of the subscriber
session could connect to a different router. You can avoid this situation
by specify the primary protocol. For a given dual-stack subscriber,
this configuration causes the rejection of any binding attempt from
the secondary address family client when a binding is not currently
active for the primary protocol family. If bindings are currently
active for both arms when the primary protocol family binding is released
or deleted, then the binding for the secondary address family is also
torn down.
Options
inet—INET family has
protocol primary behavior.
inet6—INET6 family
has protocol primary behavior.
Required Privilege Level
system—To view this statement
in the configuration.
system-control—To add this statement to the
configuration.
