I've had issues regarding VPLS among 7750SR and CSR1K. Error displayed on CISCO: Last error: Remote peer access circuit is down.
(SDP don't comming up).
Share some config from both sides.
Notes: LAB EVE-NG - VPLS BW CSR work OK.
I am newbie in Nokia!!! I've tried removing tagging in port 1/1/2 7750SR, changing MTU, etc.
7750 SIDE
#--------------------------------------------------
echo "LDP Configuration"
#--------------------------------------------------
ldp
implicit-null-label
session-parameters
peer 11.11.11.11
fec129-cisco-interop
exit
peer 22.22.22.22
fec129-cisco-interop
exit
exit
interface-parameters
interface "TO-XR6" dual-stack
ipv4
no shutdown
exit
no shutdown
exit
exit
targeted-session
exit
no shutdown
exit
#--------------------------------------------------
echo "Service Configuration"
#--------------------------------------------------
service
customer 1 create
description "Default customer"
exit
pw-template 1 create
controlword
split-horizon-group "UNERED"
exit
exit
pw-template 2 create
exit
vpls 1 customer 1 vpn 100 create
bgp
route-distinguisher 65100:100
route-target export target:65100:100 import target:65100:100
pw-template-binding 1
exit
exit
bgp-ad
vpls-id 65100:100
vsi-id
prefix 66.66.66.66
exit
no shutdown
exit
stp
no shutdown
exit
sap 1/1/2:200 create
exit
no shutdown
exit
exit
#--------------------------------------------------
echo "Port Configuration"
#--------------------------------------------------
port 1/1/1
ethernet
exit
no shutdown
exit
port 1/1/2
ethernet
mode access
encap-type dot1q
lldp
dest-mac nearest-bridge
admin-status tx-rx
notification
tx-tlvs port-desc sys-name sys-cap
exit
exit
exit
no shutdown
exit
port 1/1/3
description "TO-XR4-G0/0/0/6"
ethernet
mtu 1522
exit
no shutdown
A:7750-AGG6# show service id 1 base
===============================================================================
Service Basic Information
===============================================================================
Service Id : 1 Vpn Id : 100
Service Type : VPLS
Name : (Not Specified)
Description : (Not Specified)
Customer Id : 1 Creation Origin : manual
Last Status Change: 04/23/2025 04:42:09
Last Mgmt Change : 04/23/2025 04:32:47
Etree Mode : Disabled
Admin State : Up Oper State : Up
MTU : 1514 Def. Mesh VC Id : 1
SAP Count : 1 SDP Bind Count : 2
Snd Flush on Fail : Disabled Host Conn Verify : Disabled
Propagate MacFlush: Disabled Per Svc Hashing : Disabled
Allow IP Intf Bind: Disabled
Def. Gateway IP : None
Def. Gateway MAC : None
Temp Flood Time : Disabled Temp Flood : Inactive
Temp Flood Chg Cnt: 0
VSD Domain : <none>
SPI load-balance : Disabled
-------------------------------------------------------------------------------
Service Access & Destination Points
-------------------------------------------------------------------------------
Identifier Type AdmMTU OprMTU Adm Opr
-------------------------------------------------------------------------------
sap:1/1/2:200 q-tag 1518 1518 Up Up
sdp
4294967294 SB(11.11.11.11) BgpAd 0 1500 Up Downsdp
4294967295 SB(22.22.22.22) BgpAd 0 1500 Up Down===============================================================================
A:7750-AGG6#
A:7750-AGG6# show router ldp session
==============================================================================
LDP IPv4 Sessions
==============================================================================
Peer LDP Id Adj Type State Msg Sent Msg Recv Up Time
------------------------------------------------------------------------------
4.4.4.4:0 Link Established 645 471 0d 00:28:39
11.11.11.11:0 Targeted Established 311 350 0d 00:27:52
22.22.22.22:0 Targeted Established 210 240 0d 00:18:44
------------------------------------------------------------------------------
No. of IPv4 Sessions: 3
==============================================================================
===============================================================================
LDP IPv6 Sessions
===============================================================================
Peer LDP Id
Adj Type State Msg Sent Msg Recv Up Time
-------------------------------------------------------------------------------
No Matching Entries Found
===============================================================================
A:7750-AGG6#
===============================================================================
BGP L2-VPN Summary
===============================================================================
Neighbor
AS PktRcvd PktSent InQ OutQ Up/Down State|Recv/Actv/Sent
-------------------------------------------------------------------------------
20.20.20.20
65100 71 58 0 0 00h28m33s 2/2/1
21.21.21.21
65100 73 59 0 0 00h28m55s 2/0/1
===============================================================================
A:7750-AGG6#
A:7750-AGG6# show router bgp routes l2-vpn
===============================================================================
BGP Router ID:66.66.66.66 AS:65100 Local AS:65100
===============================================================================
Legend -
Status codes : u - used, s - suppressed, h - history, d - decayed, * - valid
l - leaked
Origin codes : i - IGP, e - EGP, ? - incomplete, > - best, b - backup
===============================================================================
BGP L2VPN Routes
===============================================================================
Flag RouteType Prefix MED
RD SiteId Label
Nexthop VeId BlockSize LocalPref
As-Path BaseOffset vplsLabelBa
se
-------------------------------------------------------------------------------
u*>? AutoDiscovery 11.11.11.11 - 0
65100:100 - -
11.11.11.11 - - 100
No As-Path - -
*? AutoDiscovery 11.11.11.11 - 0
65100:100 - -
11.11.11.11 - - 100
No As-Path - -
u*>? AutoDiscovery 22.22.22.22 - 0
65100:100 - -
22.22.22.22 - - 100
No As-Path - -
*? AutoDiscovery 22.22.22.22 - 0
65100:100 - -
22.22.22.22 - - 100
No As-Path - -
-------------------------------------------------------------------------------
Routes : 4
===============================================================================
A:7750-AGG6#
FROM CISCO CSR
l2vpn vfi context UNERED
vpn id 100
autodiscovery bgp signaling ldp
bridge-domain 100
member GigabitEthernet4 service-instance 100
member vfi UNERED
interface GigabitEthernet4
no ip address
negotiation auto
no mop enabled
no mop sysid
service instance 100 ethernet
encapsulation dot1q 200
rewrite ingress tag pop 1 symmetric
!
AGG2#sh mpls l2transport vc
Local intf Local circuit Dest address VC ID Status
------------- -------------------------- --------------- ---------- ----------
VFI UNERED vfi 11.11.11.11 100 UP
VFI UNERED vfi 66.66.66.66 100 DOWN
AGG2#
AGG2#sh xconnect all
Legend: XC ST=Xconnect State S1=Segment1 State S2=Segment2 State
UP=Up DN=Down AD=Admin Down IA=Inactive
SB=Standby HS=Hot Standby RV=Recovering NH=No Hardware
XC ST Segment 1 S1 Segment 2 S2
------+---------------------------------+--+---------------------------------+--
DN pri vfi UNERED UP mpls 66.66.66.66:100 DN
UP pri vfi UNERED UP mpls 11.11.11.11:100 UP
UP pri bd 100 UP vfi UNERED UP
AGG2#
Local interface: VFI UNERED vfi up
Interworking type is Ethernet
Destination address: 66.66.66.66, VC ID: 100, VC status: down
Last error: Remote peer access circuit is down
Output interface: none, imposed label stack {}
Preferred path: not configured
Default path: no route
No adjacency
Create time: 00:21:38, last status change time: 00:21:38
Last label FSM state change time: 00:21:35
Signaling protocol: LDP, peer 66.66.66.66:0 up
Targeted Hello: 22.22.22.22(LDP Id) -> 66.66.66.66, LDP is UP
Graceful restart: not configured and not enabled
Non stop routing: not configured and not enabled
Status TLV support (local/remote) : enabled/supported
LDP route watch : enabled
Label/status state machine : establishing, LruRrd
Last local dataplane status rcvd: No fault
Last BFD dataplane status rcvd: Not sent
Last BFD peer monitor status rcvd: No fault
Last local AC circuit status rcvd: No fault
Last local AC circuit status sent: DOWN(not-forwarding)
Last local PW i/f circ status rcvd: No fault
Last local LDP TLV status sent: No fault
Last remote LDP TLV status rcvd: DOWN(not-forwarding)
Last remote LDP ADJ status rcvd: No fault
MPLS VC labels: local 30, remote 262122
AGI: type 1, len 8, 000A FE4C 0000 0064
Local AII: type 1, len 4, 1616 1616 (22.22.22.22)
Remote AII: type 1, len 4, 4242 4242 (66.66.66.66)
Group ID: local n/a, remote 100
MTU: local 1500, remote 1500
Remote interface description:
Sequencing: receive disabled, send disabled
Control Word: On
SSO Descriptor: 66.66.66.66/100, local label: 30
Dataplane:
SSM segment/switch IDs: 0/0 (used), PWID: 4
VC statistics:
transit packet totals: receive 0, send 0
transit byte totals: receive 0, send 0
transit packet drops: receive 0, seq error 0, send 0
AGG2#
