This article describes how to use the command forwarding-options port-mirroring family vpls when configuring a port mirror for family bridge interfaces on MX device.
forwarding-options port-mirroring family vpls
family bridge
The family bridge option is not available:
[edit forwarding-options port-mirroring]
root@MX480-re0# set family ?
Possible completions:
> any Mirror any packets
> ccc Mirror layer-2 ccc packets
> inet Mirror IPv4 packets
> inet6 Mirror IPv6 packets
> mpls Mirror MPLS packets
> vpls Mirror Layer-2 bridged/vpls packets
Using "family any" will not mirror the interface.
Alternatively, using Junos OS 14.1 or later, the Port Mirror Analyzer will achieve the same goal.
Example: Configuring Port Mirroring Analyzers for Local Monitoring of Employee Resource Use
Here is what the configuration should look like:
(irb.10) Mx480 (0/1/6) -- (1/3/6)mx104(irb.10)
(2/1/6)
|
PC
Ping from irb.10 to irb.10 and port mirror interface ge-0/1/6
MX480
[edit interfaces ge-0/1/6]
root@MX480-re0# show
unit 0 {
family bridge {
filter {
input 123;
output 123;
}
interface-mode access;
vlan-id 10;
[edit interfaces ge-2/1/6]
unit 0 { family bridge { interface-mode access; vlan-id 10; }
unit 0
{
[edit interfaces irb]
unit 10 {
family inet {
address 11.11.11.11/24;
[edit firewall]
filter 123 {
term 123 {
then {
accept;
port-mirror;
{MASTER}[edit bridge-domains]
lab@MX104-re0# show
VLAN-10 {
routing-interface irb.10;
[edit forwarding-options]
port-mirroring {
input {
rate 1;
family vpls {
output {
interface ge-2/1/6.0;
01/17/2025 - Adding MX204, and adding matching configuration encapsulation for output interface.