No, not quite. There’s a need to add ‘eos’ if you want the label entry to match against that label AND against the set EOS bit. An MPLS lookup is really a 21 bit match; 20 bits of label value and 1 bit EOS. It only makes sense to send EOS traffic to IP lookup. Sending non-EOS traffic to a IP lookup would not result in something good.
If label 222 has been dedicated to 10.100.2.0/24 (i.e. when we the receiver gets traffic with label 222, it must be for 10.100.2.0/24) then the command you are looking for is; mpls local-label 222 10.100.2.0/24 this does what the API refers to as a ‘bind’. It says, whatever IP does for 10.100.2.0/24, MPLS should do for label 222. It will add the eos and non-eos entries appropriately. /neale From: Michael Borokhovich <[email protected]> Date: Monday, 14 August 2017 at 18:20 To: "Neale Ranns (nranns)" <[email protected]> Cc: "[email protected]" <[email protected]> Subject: Re: [vpp-dev] MPLS labels question I see.. so there is a need to add the "add eos" to the "mpls local-label" command if I want to send the packet to the IP lookup after popping a single (the only) label. Thanks, Neale! On Mon, Aug 14, 2017 at 1:01 PM, Neale Ranns (nranns) <[email protected]<mailto:[email protected]>> wrote: Hi Michael, ‘add’ is the default. It’s necessary to specify ‘eos’ because it I the end-of-stack entry you are adding and the default (i.e. without ‘eos’) is to add the non-end-of-stack entry. Regards, neale From: <[email protected]<mailto:[email protected]>> on behalf of Michael Borokhovich <[email protected]<mailto:[email protected]>> Date: Monday, 14 August 2017 at 16:58 To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: [vpp-dev] MPLS labels question Hi, I'm adding a label using the following command: ip route add 10.100.2.0/24<http://10.100.2.0/24> table 1 via 10.100.4.12 GigabitEthernet0/6/0 out-label 222 And on the receiving side poping it with: set interface mpls GigabitEthernet0/6/0 enable mpls local-label 222 ip4-lookup-in-table 1 However, this didn't work until I added "add eos" to the last command, i.e., the following worked: mpls local-label add eos 222 ip4-lookup-in-table 1 Why is it necessary to specify "add eos" at the receiving side? Or maybe my configuration of the sender's side is wrong? Thanks, Michael.
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