Re: [mpls-linux-general] why there are no patches for 1.958?

[Chris R. <Chr...@nr...>]

James

Just an FYI on Explicit null label testing this morning, sorry if this 
is old hat for anyone. 

I was having a problem getting it to work even though the "mpls ilm 
show" was stating the correct pop was configured, incoming packets 
appeared not to be routed via kernel after the pop.  It turns out there 
is an issue with targeting the "dummy0" interface.  Once I changed to a 
real ethX interface owned by the target router the expected action 
occurred, that is, pinging  from one  linux router where labels are 
applied to the target IP to the targeted linux route's interface IP, 
ergo explicit null action.

Command sequence is:  (NOTE 10.128.3.253 can not be a dummy0 interface)

Source router
mpls nhlfe add key 0 instructions push gen 1006 nexthop eth8 ipv4 
10.128.0.137
ip route add 10.128.3.253/32 via 10.128.0.137 mpls 0x2  
mpls labelspace set dev eth8 labelspace 0

Target router:
mpls ilm add label gen 1006 labelspace 0

-- 
Christopher Robson
Senior Computer Scientist, GS-15
Naval Research Laboratory
Center for Computational Science
Networking, Code 5591
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Washington, D.C. 20375-5320
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