Hi neale,
Got it. Thank you very much!
Thanks,
Xyxue
From: Neale Ranns (nranns)
Date: 2017-05-23 18:21
To: 薛欣颖; vpp-dev
Subject: Re: [vpp-dev] MPLS LABEL
Hi Xyxue,
Yes, that’s correct. Note the ip4-lookup-in-table-1 implies a VRF lookup.
Regards,
neale
From: 薛欣颖 <xy...@fiberhome.com>
Date: Tuesday, 23 May 2017 at 10:15
To: "Neale Ranns (nranns)" <nra...@cisco.com>, vpp-dev <vpp-dev@lists.fd.io>
Subject: Re: Re: [vpp-dev] MPLS LABEL
Hi neale,
Thank you very much for your reply!
You mean that I can configure "mpls local-label add eos 33 ip4-lookup-in-table
1"to pop the inner label,and use "mpls local-label add non-eos 34
mpls-lookup-in-table 0"
to pop the outer label. Am I right?
Thanks,
Xyxue
From: Neale Ranns (nranns)
Date: 2017-05-23 15:18
To: 薛欣颖; vpp-dev
Subject: Re: [vpp-dev] MPLS LABEL
Hi Xyxue,
MPLS labels are popped once they have been used in the lookup stage. The path
(i.e. the config after the ‘via’ keyword) describes whether a new label should
be pushed, so the absence of an out-label keyword there means that the router
will be seen to pop the label.
These configs then;
1) mpls local-label 33 ip4-lookup-in-table 0
removes label 33 and does an IP lookup in Table-ID 0
2) mpls local-label 33 via 2.1.1.2 host-eth0
remove label 33, does not add another, and forwards to 2.1.1.1 on
host-eth0 (this is probably what you want)
3) mpls local-label 33 via 2.1.1.2 host-eth0 out-label 66
removes label 33, then adds 66 and forwards via 2.1.1.2 on host-eth0
If you add all three statements, then that’s ECMP. The hash algorithm for MPLS
uses only the packets MPLS label, which is always 33, so it’ll only every take
one of these choices.
Hth,
neale
From: <vpp-dev-boun...@lists.fd.io> on behalf of 薛欣颖 <xy...@fiberhome.com>
Date: Tuesday, 23 May 2017 at 07:28
To: vpp-dev <vpp-dev@lists.fd.io>
Subject: Re: [vpp-dev] MPLS LABEL
Hi guys,
How can I configure label pop in Egress node?
That's my configure in my vpp , and the label didn't pop :
set interface mpls host-eth1 enable
set interface mpls host-eth0 enable
mpls local-label 33 ip4-lookup-in-table 0
mpls local-label 33 via 2.1.1.2 host-eth0
mpls local-label 33 via 2.1.1.2 host-eth0 out-label 66
ip route add 192.168.1.0/24 via 2.1.1.2 host-eth0 out-label 66
mpls tunnel add via 2.1.1.2 host-eth0 out-label 66
set int state mpls-tunnel0 up
ip route add 192.168.1.0/24 via mpls-tunnel0
What's wrong with my configuration ? Did I miss any configuration?
Thanks,
xyxue
From: xy...@fiberhome.com
Date: 2017-05-23 11:43
To: vpp-dev
Subject: MPLS LABEL
Hi guys,
I can configure mpls out-label with "ip route add 1.1.1.1/24 via 1.1.2.1
GigE0/0/0/0 out-label 123".
How can I configure mpls local-label?
Thanks,
xyxue
_______________________________________________
vpp-dev mailing list
vpp-dev@lists.fd.io
https://lists.fd.io/mailman/listinfo/vpp-dev
