A MAC move occurs when a MAC address frequently appears
on a different physical interface than the one it was learned on.
Frequent MAC moves indicate the presence of loops. To avoid loops
across interfaces in virtual switches in logical systems, you can
configure MAC pinning. A set of logical systems within a single router
can handle the functions previously handled by several small routers.
This topic describes how to configure MAC pinning on access
interfaces in virtual switch routing instance of a logical system.
To configure MAC pinning on access interfaces in virtual
switches for logical systems:
- Configure the interface and specify the encapsulation.
[edit interfaces]
user@host# set interfacetype-fpc/pic/port encapsulation ethernet-vpls
- Create the logical system by specifying the name of the
logical system, and specify the access interface.
[edit ]
user@host# set logical-systems logical-system-name interfaces interfacetype-fpc/pic/port unit logical-unit-number family bridge interface-mode access vlan-id vlan-id
- Configure the routing instance as virtual switch and specify
the access interface.
[edit routing-instances]
user@host# set routing-instance-name instance-type virtual-switch;
user@host# set routing-instance-name interface interfacetype-fpc/pic/port
- Configure the bridge domain and specify the list of VLAN
IDs.
[edit routing-instances]
user@host# set routing-instance-name bridge-domains bridge-domain-name vlan-id-list vlan-id-numbers
user@host# set routing-instance-name bridge-domains bridge-domain-name bridge-options interface interfacetype-fpc/pic/port mac-pinning
- In configuration mode, verify the configuration.
user@host# show interfaces
interfaces {
interfacetype-fpc/pic/port {
encapsulation ethernet-vpls;
}
}
user@host# show logical-systems
logical-systems {
logical-system-name {
interfaces {
interfacetype-fpc/pic/port {
unit logical-unit-number {
family bridge {
interface-mode access;
vlan-id vlan-id;
}
}
}
}
user@host# show routing-instances
routing-instances {
routing-instance-name {
instance-type virtual-switch;
interface interfacetype-fpc/pic/port;
bridge-domains {
bridge-domain-name {
vlan-id-list vlan-id-numbers;
bridge-options {
interface interfacetype-fpc/pic/port {
mac-pinning;
}
}
}
}
}
}
}
}
