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 in a logical system.
To configure MAC pinning for VPLS customer edge interface
for logical systems:
- Configure the interfaces by specifying the encapsulation.
[edit interfaces]
user@host# set interfacetype-fpc/pic/port flexible-vlan-tagging
user@host# set interfacetype-fpc/pic/port encapsulation flexible-ethernet-services
- Create the logical system by specifying the name and the
trunk interface on the logical unit.
[edit]
user@host# set logical-systems logical-system-nameinterfaces interfacetype-fpc/pic/port unit logical-unit-number encapsulation vlan-vpls family bridge interface-mode trunk vlan-id-list vlan-id-numbers
- Configure the VPLS CE interface and VPLS routing instance.
[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;
}
}
user@host# show logical-systems
logical-systems {
logical-system-name {
interfaces {
interfacetype-fpc/pic/port {
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;
}
}
}
