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 private LAN services (VPLS), you can
configure MAC pinning.
This topic describes how to configure MAC pinning on a VPLS
customer edge (CE) trunk interface.
To configure MAC pinning on a VPLS CE interface:
- Configure the trunk interface and specify the list of
VLAN IDs.
[edit interfaces]
user@host# set interfacetype-fpc/pic/port flexible-vlan-tagging
user@host# set interfacetype-fpc/pic/port encapsulation flexible-ethernet-services
user@host# set interfacetype-fpc/pic/port unit logical-unit-number encapsulation vlan-vpls;
user@host# set interfacetype-fpc/pic/port unit logical-unit-number family bridge interface-mode trunk
user@host# set interfacetype-fpc/pic/port unit logical-unit-number family bridge vlan-id-list vlan-id-numbers
- Configure the VPLS routing instance and specify the CE
interface.
[edit routing-instances]
user@host# set routing-instance-name instance-type vpls;
user@host# set routing-instance-name interface interfacetype-fpc/pic/port
- Configure MAC pinning on the VPLS CE interface.
[edit routing-instances]
user@host# set routing-instance-name protocols vpls interfacetype-fpc/pic/port mac-pinning
- In configuration mode, verify the configuration.
user@host# show interfaces
interfaces {
interfacetype-fpc/pic/port {
flexible-vlan-tagging;
encapsulation flexible-ethernet-services;
unit logical-unit-number {
encapsulation vlan-vpls;
}
family bridge {
interface-mode trunk ;
vlan-id-list vlan-id-numbers;
}
}
}
}
user@host# show routing-instances
routing-instances{
routing-instance-name{
instance-type vpls;
interface interfacetype-fpc/pic/port;
protocols{
vpls {
interface interfacetype-fpc/pic/port {
mac-pinning;
}
}
}
}
}
