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Beginner

MPLS L3VPN over SR-TE Policy

Thanks for any insight.

 

I want to use MPLS L3VPN over SR-TE Policy on ASR9000.
So I configured SR-TE Policy on Ingress PE and configured vpnv4 route-policy on Egress PE.

 

---
<Ingress PE>

segment-routing
traffic-eng
segment-list AP14
index 1 mpls label 15014
!
segment-list AP154
index 1 mpls label 15015
index 2 mpls label 15054
!
policy EV14_BLACK
color 1001 end-point ipv4 1.1.1.4
candidate-paths
preference 10
explicit segment-list AP154
!
!
!
policy EV14_GREEN
color 1002 end-point ipv4 1.1.1.4
candidate-paths
preference 10
explicit segment-list AP14
!

--
<Egress PE>

extcommunity-set opaque BLACK
1001
end-set
!
extcommunity-set opaque GREEN
1002
end-set
!
route-policy L3_color
if destination in (74.1.1.0/24) then
set extcommunity color BLACK
set next-hop 1.1.1.4
elseif destination in (74.2.1.0/24) then
set extcommunity color GREEN
set next-hop 1.1.1.4
endif
pass
end-policy
!
router bgp 65001
neighbor-group iBGP
remote-as 65001
update-source Loopback0
address-family vpnv4 unicast
!
!
neighbor 1.1.1.1
use neighbor-group iBGP
address-family vpnv4 unicast
route-policy L3_color out
!
!
---

 

Ingress PE received vpnv4 prefix information with color community.

 

---
RP/0/RSP1/CPU0:ASR9904-1#show bgp vrf RED 74.1.1.0/24
BGP routing table entry for 74.1.1.0/24, Route Distinguisher: 1:1
Versions:
Process bRIB/RIB SendTblVer
Speaker 64 64
Last Modified: Jan 10 10:34:35.451 for 00:04:04
Paths: (1 available, best #1)
Advertised to CE peers (in unique update groups):
11.1.111.11
Path #1: Received by speaker 0
Advertised to CE peers (in unique update groups):
11.1.111.11
14
1.1.1.4 (metric 20) from 1.1.1.4 (1.1.1.4)
Received Label 68104
Origin IGP, localpref 100, valid, internal, best, group-best, import-candidate, imported
Received Path ID 0, Local Path ID 1, version 64
Extended community: Color:1001 RT:1:1
Source AFI: VPNv4 Unicast, Source VRF: RED, Source Route Distinguisher: 1:1

--

RP/0/RSP0/CPU0:ASR9904-1#show bgp vrf RED 74.2.1.0/24
BGP routing table entry for 74.2.1.0/24, Route Distinguisher: 1:1
Versions:
Process bRIB/RIB SendTblVer
Speaker 63 63
Last Modified: Jan 10 10:34:35.452 for 00:05:51
Paths: (1 available, best #1)
Advertised to CE peers (in unique update groups):
11.1.111.11
Path #1: Received by speaker 0
Advertised to CE peers (in unique update groups):
11.1.111.11
14
1.1.1.4 (metric 20) from 1.1.1.4 (1.1.1.4)
Received Label 68105
Origin IGP, localpref 100, valid, internal, best, group-best, import-candidate, imported
Received Path ID 0, Local Path ID 1, version 63
Extended community: Color:1002 RT:1:1
Source AFI: VPNv4 Unicast, Source VRF: RED, Source Route Distinguisher: 1:1
---

 

But L3VPN traffic didn't use SR-TE Policy.

 

---
RP/0/RSP0/CPU0:ASR9904-1#show segment-routing traffic-eng forwarding policy
Policy                Segment              Outgoing       Outgoing                     Next Hop              Bytes
Name                List                       Label            Interface                                                  Switched
------------- --------------- ----------- ------------------- --------------- ------------
EV14_BLACK    AP154                 15054           Gi0/0/0/0.15               11.1.15.5              0
EV14_GREEN    AP14                   Pop               Gi0/0/0/0.14               11.1.14.4              0
---

 

Anything missing here in the configuration?
Or does SR-TE Policy still not support MPLS L3VPN?

 

As additional information, EVPN-VPWS over SR-TE Policy has succeeded.

 

Thanks,

 

Soushi

1 ACCEPTED SOLUTION

Accepted Solutions
Cisco Employee

Re: MPLS L3VPN over SR-TE Policy

Hi Soushi,

 

This feature is not supported yet in 6.4.2.  It will be supported in 6.5.2.

 

Regards,

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
8 REPLIES 8
Beginner

Re: AS-Override in MPLS L3VPN

Sorry.

I mistook the title of this post.

Because I don't know how to delete this post, I will post a new post. 

Cisco Employee

Re: MPLS L3VPN over SR-TE Policy

Hi Soushi,

 

What version of IOS-XR are you using?

 

Regards,

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
Beginner

Re: MPLS L3VPN over SR-TE Policy

Hi Harold,

 

Thanks for your reply.

I'm using IOS-XR 6.4.2.

This is a 32bit OS.

 

Regards,

 
Soushi

 

Cisco Employee

Re: MPLS L3VPN over SR-TE Policy

Hi Soushi,

 

This feature is not supported yet in 6.4.2.  It will be supported in 6.5.2.

 

Regards,

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
Beginner

Re: MPLS L3VPN over SR-TE Policy

Hi Harold,

 

I really appreciate your response.

 

I will check this feature again after 6.5.2 has been released.

 

Regards,

 

Soushi

Cisco Employee

Re: MPLS L3VPN over SR-TE Policy

As an additional comment, I posted an external article on CCO related to dynamic BGP SRTE policies, https://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/213934-understanding-bgp-dynamic-segment-routin.html.

 

HTH,

 

Elvin

Beginner

Re: MPLS L3VPN over SR-TE Policy

Hi Elvin,

 

Thank you for your comment.

Your article is very interesting to me.

I will make it a reference.

 

Regards,

 

Soushi

Cisco Employee

Re: MPLS L3VPN over SR-TE Policy

Thank you, glad you liked it.

 

Elvin

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