I'm trying to deploy SR-TE on XRv9000 routers IOS XR 6.3.1 version which are deployed in AWS according to the topology below.
I have accomplished the configuration of SR on all routers which is based on the official tutorial Cisco's official SR tutorial. The following configuration is enabling SR on the routers.
router ospf 1
distribute link-state
router-id 1.1.1.1
segment-routing mpls
segment-routing forwarding mpls
area 0
interface Loopback0
passive enable
prefix-sid index 11
!
interface tunnel-ip0
cost 1
network point-to-point
!
interface tunnel-ip1
cost 6
network point-to-point
!
!
mpls traffic-eng router-id Loopback0
!
As an instance, the MPLS forwarding table for R1 is the following:
RP/0/RP0/CPU0:R1#sh mpls forwarding
Local Outgoing Prefix Outgoing Next Hop Bytes
Label Label or ID Interface Switched
------ ----------- ------------------ ------------ --------------- ------------
18022 Pop SR Pfx (idx 22) ti0 10.10.1.2 0
18033 18033 SR Pfx (idx 33) ti0 10.10.1.2 0
18044 18044 SR Pfx (idx 44) ti0 10.10.1.2 0
24000 Pop SR Adj (idx 0) ti0 10.10.1.2 0
24001 Pop SR Adj (idx 0) ti1 10.10.4.1 0
It looks like everything is set up Note, that each MPLS forwarding table shows only some difference of labels' order according to the adjacency's nodes. Moreover, I went forward for implementing which is presented here SR-TE.
I would like that the traffic sent from source node R1 to destination node R3 by passing the following routers: R1, R4, R1, R4 and R3. It may repass the same routers couple of times for reasons (VNF order). The path is given in the segment-list in the following SR-TE configuration for R1:
segment-routing
global-block 18000 19999
local-block 30000 30999
traffic-eng
segment-list name SIDLIST1
index 10 mpls label 18011
index 20 mpls label 18044
index 30 mpls label 18011
index 40 mpls label 18044
index 50 mpls label 18033
!
policy POLICY1
color 2 end-point ipv4 10.10.3.1
candidate-paths
preference 10
explicit segment-list SIDLIST1
weight 4
!
!
!
!
!
!
For the Verification, the CLI show segment-routing traffic-eng policy name POLICY1 can show if it is working.
RP/0/RP0/CPU0:R1#show segment-routing traffic-eng policy name POLICY1
Thu Mar 28 11:15:58.799 UTC
SR-TE policy database
---------------------
Name: POLICY1 (Color: 2, End-point: 10.10.3.1)
Status:
Admin: up Operational: down for 00:00:19 (since Mar 28 11:15:39.411)
Candidate-paths:
Preference 10:
Explicit: segment-list SIDLIST1 (active)
Weight: 4
18011
18044
18011
18044
18033
Attributes:
Binding SID: 24003
Allocation mode: dynamic
State: awaiting operational
Policy selected: no
Forward Class: 0
It is obvious that it is not working, before hand I chose an explicit path not dynamic for allocation mode. and the Operational is down.
Something is missed, may I have help?
