1 files changed, 19 insertions, 1 deletions

diff --git a/Documentation/networking/pktgen.txt b/Documentation/networking/pktgen.txt
index cc4b4d04129c..278771c9ad99 100644
--- a/Documentation/networking/pktgen.txt
+++ b/Documentation/networking/pktgen.txt
@@ -109,6 +109,22 @@ Examples:
                          cycle through the port range.
  pgset "udp_dst_max 9"   set UDP destination port max.
 
+ pgset "mpls 0001000a,0002000a,0000000a" set MPLS labels (in this example
+                                         outer label=16,middle label=32,
+                                         inner label=0 (IPv4 NULL)) Note that
+                                         there must be no spaces between the
+                                         arguments. Leading zeros are required.
+                                         Do not set the bottom of stack bit,
+                                         thats done automatically. If you do
+                                         set the bottom of stack bit, that
+                                         indicates that you want to randomly
+                                         generate that address and the flag
+                                         MPLS_RND will be turned on. You
+                                         can have any mix of random and fixed
+                                         labels in the label stack.
+
+ pgset "mpls 0"           turn off mpls (or any invalid argument works too!)
+
  pgset stop               aborts injection. Also, ^C aborts generator.
 
 
@@ -167,6 +183,8 @@ pkt_size
 min_pkt_size
 max_pkt_size
 
+mpls
+
 udp_src_min
 udp_src_max
 
@@ -211,4 +229,4 @@ Grant Grundler for testing on IA-64 and parisc, Harald Welte,  Lennert Buytenhek
 Stephen Hemminger, Andi Kleen, Dave Miller and many others.
 
 
-Good luck with the linux net-development.
\ No newline at end of file
+Good luck with the linux net-development.