dpdk: add support for outer udp and ipv4 checksums

Type: improvement

Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Change-Id: I10141033030342881298d70742fa5bdea402b4c9
diff --git a/extras/vpp_config/data/startup.conf.template b/extras/vpp_config/data/startup.conf.template
index 13d86b6..ccd2cf3 100644
--- a/extras/vpp_config/data/startup.conf.template
+++ b/extras/vpp_config/data/startup.conf.template
@@ -150,6 +150,10 @@
 	## Enable UDP / TCP TX checksum offload
 	## This is the reversed option of 'no-tx-checksum-offload'
 	# enable-tcp-udp-checksum
+
+        ## Enable outer UDP / IPv4 checksum offload
+        ## This is only enabled when tunnels offload are available
+        # enable-outer-checksum-offload
 }}
 
 ## node variant defaults