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EVPN-VPWS between ASR9K and NCS540

foxroot.us
Beginner
Beginner

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

Legend: ST = State, UP = Up, DN = Down, AD = Admin Down, UR = Unresolved,
SB = Standby, SR = Standby Ready, (PP) = Partially Programmed

XConnect Segment 1 Segment 2
Group Name ST Description ST Description ST
------------------------ ----------------------------- -----------------------------
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

Group EVPN-VPWS, XC TEST, state is up; Interworking none
AC: Bundle-Ether5.4027, state is up
Type VLAN; Num Ranges: 1
Rewrite Tags: []
VLAN ranges: [4027, 4027]
MTU 9180; XC ID 0xc00006b6; interworking none
Statistics:
packets: received 0, sent 0
bytes: received 0, sent 0
drops: illegal VLAN 0, illegal length 0
EVPN: neighbor 28357, PW ID: evi 4027, ac-id 274027, state is up ( established )
XC ID 0xa0000905
Encapsulation MPLS
Source address 10.30.1.117
Encap type Ethernet, control word enabled
Sequencing not set
LSP : Up

EVPN Local Remote
------------ ------------------------------ -----------------------------
Label 28190 1048577
MTU 9180 9180
Control word enabled enabled
AC ID 285002 274027
EVPN type Ethernet Ethernet

------------ ------------------------------ -----------------------------
Create time: 22/03/2023 14:13:22 (00:29:01 ago)
Last time status changed: 22/03/2023 14:18:39 (00:23:43 ago)
Statistics:
packets: received 0, sent 0
bytes: received 0, sent 0


Primary NCS540

RP/0/RP0/CPU0:NCS-PE10-02#sh l2vpn xconnect neighbor vpn-id 4027

Legend: ST = State, UP = Up, DN = Down, AD = Admin Down, UR = Unresolved,
SB = Standby, SR = Standby Ready, (PP) = Partially Programmed,
LU = Local Up, RU = Remote Up, CO = Connected

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

Group EVPN_ATS521, XC TEST, state is up; Interworking none
AC: Bundle-Ether17.4027, state is up
Type VLAN; Num Ranges: 1
Rewrite Tags: []
VLAN ranges: [4027, 4027]
MTU 9202; XC ID 0xa00003d6; interworking none
Statistics:
packets: received 0, sent 0
bytes: received 0, sent 0
drops: illegal VLAN 0, illegal length 0
EVPN: neighbor 30289, PW ID: evi 4027, ac-id 285002, state is up ( established )
XC ID 0xc0000083
Encapsulation MPLS
Source address 10.30.10.102
Encap type Ethernet, control word enabled
Sequencing not set
Ignore MTU mismatch: Disabled
Transmit MTU zero: Disabled
LSP : Up
Load Balance Hashing: src-dst-mac

EVPN Local Remote
------------ ------------------------------ -----------------------------
Label 29716 1048577
MTU 9202 unknown
Control word enabled enabled
AC ID 274027 285002
EVPN type Ethernet Ethernet

------------ ------------------------------ -----------------------------
Create time: 22/03/2023 14:21:22 (00:16:12 ago)
Last time status changed: 22/03/2023 14:21:30 (00:16:05 ago)
Statistics:
packets: received 0, sent 0
bytes: received 0, sent 0


Backup NCS540
RP/0/RP0/CPU0:NCS-PE10-01#sh l2vpn xconnect neighbor vpn-id 4027

Legend: ST = State, UP = Up, DN = Down, AD = Admin Down, UR = Unresolved,
SB = Standby, SR = Standby Ready, (PP) = Partially Programmed,
LU = Local Up, RU = Remote Up, CO = Connected

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

Group EVPN_ATS521, XC TEST, state is down; Interworking none
AC: Bundle-Ether17.4027, state is up
Type VLAN; Num Ranges: 1
Rewrite Tags: []
VLAN ranges: [4027, 4027]
MTU 9202; XC ID 0xa00003d6; interworking none
Statistics:
packets: received 0, sent 0
bytes: received 0, sent 0
drops: illegal VLAN 0, illegal length 0
EVPN: neighbor 0.0.0.0, PW ID: evi 4027, ac-id 285002, state is standby ( local ready )
XC ID 0xc0000083
Encapsulation MPLS
Source address 10.30.10.101
Encap type Ethernet, control word enabled
Sequencing not set
Ignore MTU mismatch: Disabled
Transmit MTU zero: Disabled
LSP : Up
Load Balance Hashing: src-dst-mac

EVPN Local Remote
------------ ------------------------------ -----------------------------
Label 30293 unknown
MTU 9202 unknown
Control word enabled unknown
AC ID 274027 285002
EVPN type Ethernet unknown

------------ ------------------------------ -----------------------------
Create time: 22/03/2023 14:18:39 (00:20:08 ago)
Last time status changed: 22/03/2023 14:18:39 (00:20:08 ago)
Statistics:
packets: received 0, sent 0
bytes: received 0, sent 0

1 Reply 1

r.gaynut
Beginner
Beginner

Hi. Im reproduced this behavior in my lab too. In my lab i have A99 (XR 6.7.3) and NCS 540 (7.2.2).If in this sheme all routers are NCS 540 all outputs fine.

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