I am trying to build an EVPN VPWS service between Cisco ASR9K (XR6.4.2. sp 10) and Сisco NCS540 (XR 7.2.2). I have one ASR9K and two NCS540 for the remote site. On the remote site (NCS540) client switch is connected for each PE, and the interface has configured that single active. I have an issue with this Service. Evpn-VPWS came UP, but ASR 9K doesn`t choose which remote PE is Backup or primary.
Also if we look at the output on NCS 540, we can see that the Backup PE EVPN VPWS service hasn`t neighbor in output.
RP/0/RSP0/CPU0:A9k-PE1-01# sh evpn internal-label vpn-id 4027
EVI Ethernet Segment Id EtherTag Label
----- --------------------------------------- -------- --------
4027 0010.3010.1010.0000.0017 0 None
4027 0010.3010.1010.0000.0017 274027 28357
Summary 10.30.10.101 30293
10.30.10.102 29716
RP/0/RSP0/CPU0:A9k-PE1-01#sh l2vpn xconnect neighbor vpn-id 4027
------------------------ ----------------------------- -----------------------------
EVPN-VPWS TEST UP BE5.4027 UP EVPN 4027,274027,28357
UP
----------------------------------------------------------------------------------------
RP/0/RSP0/CPU0:A9k-PE1-01#sh l2vpn xconnect neighbor vpn-id 4027 detail
EVPN: neighbor 28357, PW ID: evi 4027, ac-id 274027, state is up ( established )
Prinary NCS540
RP/0/RP0/CPU0:NCS-PE10-02#sh l2vpn xconnect neighbor vpn-id 4027
XConnect Segment 1 Segment 2
Group Name ST Description ST Description ST
------------------------ ----------------------------- -----------------------------
EVPN_ATS521
TEST UP BE17.4027 UP EVPN 4027,285002,30289
UP
----------------------------------------------------------------------------------------
RP/0/RP0/CPU0:ZAI-RUES-NCS-PE10-02#sh l2vpn xconnect neighbor vpn-id 4027 detail
EVPN: neighbor 30289, PW ID: evi 4027, ac-id 285002, state is up ( established )
Backup NCS540
RP/0/RP0/CPU0:NCS-PE10-01#sh l2vpn xconnect neighbor vpn-id 4027
XConnect Segment 1 Segment 2
Group Name ST Description ST Description ST
------------------------ ----------------------------- -----------------------------
EVPN_ATS521
TEST DN BE17.4027 UP EVPN 4027,285002,0.0.0.0
SB
----------------------------------------------------------------------------------------
RP/0/RP0/CPU0:NCS-PE10-01#sh l2vpn xconnect neighbor vpn-id 4027 detail
EVPN: neighbor 0.0.0.0, PW ID: evi 4027, ac-id 285002, state is standby ( local ready )
