My customer asked me whether JUNOS supports a function about ldp traffic statistics per mpls label. You can do show ldp statistics, but you have to know the prefix. I didn't find any command about the function and our firewall filter only supports label exp flag. Can we write some op script tho support it?
I created an op script that will do a reverse lookup of the prefix from the label. It combines the following commands:
show route x.x.x.x table inet.3
show ldp traffic-statistics
Basically it looks for the label that is in the inet.3 table and finds the associated route. It then looks for the ldp-traffic stats from the route.
See below on how it works:
user@router# show system
host-name router;
scripts {
op {
file label-stats.slax;
}
}
[edit]
user@router# run op label-stats label 300048
label 300048 prefix 202.0.0.0/24
202.0.0.0/24 Transit 114533658740 5726682937000 No.
202.0.0.0/24 Ingress 0 0 No.
[edit]
user@router# run show route 202.0.0.0/24 table inet.3
inet.3: 9 destinations, 9 routes (9 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
202.0.0.0/24 *[LDP/9] 22:28:18, metric 1
> to 10.2.3.3 via xe-3/0/0.0, Push 300048
[edit]
user@router# run show ldp traffic-statistics | find 202.0.0.0
202.0.0.0/24 Transit 114543762951 5727188147550 No
Ingress 0 0 No
202.0.1.0/24 Transit 110333454 5516672700 No
Ingress 0 0 No
202.0.2.0/24 Transit 110333454 5516672700 No
Ingress 0 0 No
202.0.3.0/24 Transit 110333453 5516672650 No
Ingress 0 0 No
SOURCE CODE:
------------------------------------------------------------------------------------------
version 1.0;
ns junos = "http://xml.juniper.net/junos/*/junos";
ns xnm = "http://xml.juniper.net/xnm/1.1/xnm";
ns jcs = "http://xml.juniper.net/junos/commit-scripts/1.0";
import "../import/junos.xsl";
var $arguments = <argument> {
<name> "label";
<description> "mpls label";
}
param $label;
param $indent = " TEXT";
param $newline = "\n";
match / {
<op-script-results> {
var $result = jcs:invoke("get-route-information");
var $test = ($result);
<output method = "text"> {
for-each ($result/route-table) {
if (table-name == "inet.3") {
var $content = .;
for-each ($content/rt/rt-entry/nh) {
var $check = mpls-label;
if (contains($check, $label)) {
var $route = normalize-space(../../rt-destination);
expr "label " _ $label _ " prefix " _ $route _ "\n";
var $stats = jcs:invoke("get-ldp-traffic-statistics-information");
for-each ($stats/ldp-traffic-statistics) {
var $compare = normalize-space(./ldp-prefix);
if ($compare == $route) {
expr normalize-space(.);
expr ".\n";
}
}
}
}
}
}
}
}
}
