hi all:
on mx series, i use layer-2 port-mirroring to capture data and it works well (sure there are few bugs but...)). though i can get the feature working yet i still have some questions regarding how it works in details. here is the configuration for logical tunnel interface and port mirroring:
user@host# show interfaces lt-10/3/10
unit 1025 {
encapsulation ethernet-bridge;
peer-unit 1026;
family bridge {
filter {
output pmx_layer2_fanout;
}
}
}
unit 1026 {
encapsulation ethernet;
peer-unit 1025;
}
{master}[edit forwarding-options port-mirroring instance]
user@host# show
pmx {
input {
rate 1;
run-length 1;
}
family vpls {
output {
interface lt-10/3/10.1025;
no-filter-check;
}
}
}
those lt interfaces function like a pipe, i used lt interfaces to connect two logical routers withboth ends encapsulated in frame-relay and they work as designed, nothing unclear about that. but in this specific application, one end must be "encapsulation ethernet-bridge" and another end must be "encapsulation ethernet".
question is:
1) what is "encapsulation ethernet"??? it seems to be only for lt interfaces,
2) under the lt-10/3/10.1025, why output filer? does that mean lt-10/3/10.1025 is egress end? then where is the "ingress end" for the virtual pipe? lt-10/3/10.1026? but lt-10/3/10.1026 is not used...
thanks in advance...
