On Mon, Jun 07, 2010 at 04:48:32PM +0200, Rolf Sommerhalder wrote: > Dear list, > > Is there an way to disable PHP, e.g. to prevent ldpd on the last P > router from stripping/popping the label before it reaches the PE > router? >
It is on the todo list but not yet done. It is a per-interface knob we need in ldpd. > In my little test network that runs -current as of 03 June, I observe > from ldpd's lfib on the last P router that it pops the label on the > ingress interface (see output below), but then it never outputs/routes > the stripped packet to the egress interface towards the PE router (the > use counter of the matching prefix on the P router does not increment, > e.g. the P router appears to blackhole the ICMP Echo Request packets). > Have a look at the route -n show -mpls output and check the input counter for label 20. Hmm. I see, my testings never used PHP on the P router. So there is something strange going on. Thanks for the report, I'll have a look. > Currently, I am using a very basic setup with RIP as IGP, LDP, without > any additional route tables, nor VLANs, pf is disabled on all nodes. > > I can provide a more detailed description of my lab setup, and output > of the various routing tables, etc. However, if there would be an easy > way to disable PHP, then that would confirm that my setup is indeed OK > (as I have tried to verify manually so far). > Setup looks fine. I use OSPF as IGP but I now Michele is using RIP in his setup. > Thank you, > Rolf > > > We ping from another PE router pe11 via two P routers p1 and p2 to > another PE router pe21=3.2.1.1: > [r...@pe11:root]# ping 3.2.1.1 > Side note: Please consider using IP blocks that are available for testing and not publicly assigned ones. -- :wq Claudio
