Hi Pravin,
Pravin Shelar :
On Tue, Jul 21, 2015 at 8:07 AM, Daniel Herrmann
<daniel.herrm...@igd.fraunhofer.de> wrote:
I know this may not be a very interesting question, but I do not have
any idea why forwarding does not work.
Any help would really be appreciated.
There were few MPLS fixed pushed in branch 2.4, Can you try it on
master or branch 2.4?
Although 2.4 will be much better for MPLS with the kernel dataplane, I
think it would still be nice if that bug could be solved in a 2.3.x
release because, looking at the mailing list, it seems like many people
may be running into that issue (scherep...@gmail.com recently, but
looking at the explanations it seems many others).
This an issue that I've always ran into with 2.3.x (which is why we use
pre 2.4 for our work).
So, going 2.4 is nicer for sure, but I suspect 2.4 won't make it into
distros overnight...
For instance (2.3.2 with linux 3.16 kernel module):
ovs-ofctl dump-flows:
lnx01:~# ovs-ofctl dump-flows ovsbr0
NXST_FLOW reply (xid=0x4):
cookie=0x0, duration=61.390s, table=0, n_packets=13, n_bytes=1274,
idle_age=1, ip,in_port=1,nw_dst=2.2.2.2
actions=push_mpls:0x8847,load:0x2a->OXM_OF_MPLS_LABEL[],output:3
2015-07-21T16:17:06.863Z|00185|dpif(handler7)|WARN|system@ovs-system:
failed to put[create] (Invalid argument)
skb_priority(0),in_port(2),skb_mark(0/0),eth(src=4a:ee:e6:1d:f9:58/00:00:00:00:00:00,dst=82:4c:1b:8e:a2:62/00:00:00:00:00:00),eth_type(0x0800),ipv4(src=2.2.2.1/0.0.0.0,dst=2.2.2.2/255.255.255.255,proto=1/0,tos=0/0xfc,ttl=64/0xff,frag=no/0xff),icmp(type=8,code=0),
actions:set(tunnel(tun_id=0x0,src=0.0.0.0,dst=192.168.122.102,tos=0x0,ttl=64,flags(df))),push_mpls(label=42,tc=0,ttl=64,bos=1,eth_type=0x8847),3
in dmesg:
[ 364.756239] openvswitch: netlink: Contain more than allowed mask
fields (mask_attrs=108cc, mask_allowed=180dc).
The bit in masked attributes that is not in mask allowed is bit 11,
OVS_KEY_ATTR_ICMP.
I'm not familiar enough with the masking code to debug further.
Best,
-Thomas
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