Hi,

sheeptest · ‎05-02-2014

Hi,

I'm running IOS XRv in VMware Workstation. I have a simple topology of two PE routers connected to a P router, all running XRv.

I have configured Layer 3 VPN's and layer 2 Local E-Line VPN's (AC's on same PE) between the PEs with no problem. But when I try to configure a Layer 2 EoMPLS VPN over a pseudowire I get the following error:

Error: AToM Dynamic with mismatched AC config

Here's the full show output:

RP/0/0/CPU0:PE1#show l2vpn xconnect

Fri May 2 23:37:31.563 UTC

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

------------------------ ----------------------------- -----------------------------

AC2AC_1 EoMPLS DN Gi0/0/0/1.2 DN 10.2.2.2 101 DN

----------------------------------------------------------------------------------------

RP/0/0/CPU0:PE1#show l2vpn xconnect detail

Fri May 2 23:37:39.382 UTC

Group AC2AC_1, XC EoMPLS, state is down; Interworking none

AC: GigabitEthernet0/0/0/1.2, state is down

Type VLAN; Num Ranges: 1

VLAN ranges: [11, 11]

MTU 1500; XC ID 0x4; interworking none

Error: AToM Dynamic with mismatched AC config

Statistics:

packets: received 0, sent 0

bytes: received 0, sent 0

drops: illegal VLAN 0, illegal length 0

PW: neighbor 10.2.2.2, PW ID 101, state is down ( all ready )

PW class not set, XC ID 0xff000001

Encapsulation MPLS, protocol LDP

Source address 10.1.1.1

PW type Ethernet, control word disabled, interworking none

PW backup disable delay 0 sec

Sequencing not set

PW Status TLV in use

MPLS Local Remote

------------ ------------------------------ -----------------------------

Label 16007 16008

Group ID 0x300 0x400

Interface GigabitEthernet0/0/0/1.2 GigabitEthernet0/0/0/2.2

MTU 1500 1500

Control word disabled disabled

PW type Ethernet Ethernet

VCCV CV type 0x2 0x2

(LSP ping verification) (LSP ping verification)

VCCV CC type 0x6 0x6

(router alert label) (router alert label)

(TTL expiry) (TTL expiry)

------------ ------------------------------ -----------------------------

Incoming Status (PW Status TLV):

Status code: 0x6 (AC Down) in Notification message

Outgoing Status (PW Status TLV):

Status code: 0x6 (AC Down) in Notification message

MIB cpwVcIndex: 4278190081

Create time: 02/05/2014 23:35:14 (00:02:24 ago)

Last time status changed: 02/05/2014 23:35:39 (00:01:59 ago)

Last time PW went down: 02/05/2014 23:35:39 (00:01:59 ago)

Statistics:

packets: received 0, sent 0

bytes: received 0, sent 0

Here's the configs:

# PE1 #

interface GigabitEthernet0/0/0/1

speed 100

duplex full

int g0/0/0/1.2 l2transport

encap dot1q 11

rewrite ingress tag pop 1

!

l2vpn

xconnect group AC2AC_1

p2p EoMPLS

int g0/0/0/1.2

neighbor ipv4 10.2.2.2 pw-id 101

# PE2 #

interface GigabitEthernet0/0/0/2

speed 100

duplex full

interface g0/0/0/2.2 l2transport

encapsulation dot1q 11

rewrite ingress tag pop 1

!

l2vpn

xconnect group AC2AC_1

p2p EoMPLS

interface GigabitEthernet0/0/0/2.2

neighbor ipv4 10.1.1.1 pw-id 101

############

Any help would be greatly appreciated

Nagendra Kumar Nainar · ‎05-10-2014

Hi,

Can you try EoMPLS under main interface instead of sub-interface?.

-Nagendra

Kalin Hristov · ‎06-26-2014

Guys,

Are you able to actually transport packets between the ACs? In my config all counters stays zero..

RP/0/0/CPU0:R1#show l2vpn xconnect detail
Thu Jun 26 04:43:54.106 UTC

Group R4, XC R4, state is up; Interworking none
AC: GigabitEthernet0/0/0/2, state is up
Type Ethernet
MTU 1500; XC ID 0x1; interworking none
Statistics:
packets: received 0, sent 0
bytes: received 0, sent 0
PW: neighbor 4.4.4.4, PW ID 10, state is up ( established )

***SNIP***

Last time status changed: 26/06/2014 04:06:30 (00:37:23 ago)
Statistics:
packets: received 0, sent 0
bytes: received 0, sent 0

The box is not able to send or receive anything in the AC

sheeptest · ‎06-26-2014

I'm running IOS XRv in VMware Workstation which doesn't support dot1q trunking so I'm not expecting the data plane to work. I think it should work in VMware ESXi.

Alexei Kiritchenko · ‎07-06-2014

XRv does not support l2vpn data forwarding yet.

Regards,
/A

Kalin Hristov · ‎07-10-2014

You mean there are plans to support it in the future?

I have another question is there a way to obtain the documentation PIE for XRv?

RP/0/0/CPU0:R2#man command ping
Mon Jun 30 06:09:11.580 UTC
Unable to retrieve man pages. Please check if doc pie is installed.

Alexei Kiritchenko · ‎07-10-2014

yes, there are plans to support l2vpn.

Not sure about doc pie though.

sheeptest · ‎05-11-2014

Thanks for the response Nagendra.

Yeah I tried configuring it under the main interface, same error.

The error is only happening for point-to-point EoMPLS. VPLS works okay which surprised me. I had to configure 'rewrite ingress tag pop 1 symmetric' under the subinterface for VPLS to work, it reported an MTU mismatch error otherwise.

For EoMPLS, I've tried configuring it under the main interface, subinterface, popping/not popping the vlan tag, type 4/type 5, and manually setting various MTU sizes under the main interface configuration. I always get the same error.

Regards,

Neil

DanilZhig · ‎06-03-2014

Hi!

I'm facing the same problem on XRv. I've tried to configure it either with another XRv or with IOS-based router. Same result. I also tried interworking scenario between FrameRelay on IOS and Ethernet VLAN on XRv. In that case I'm getting a slitely different error: AToM Dynamic with not supported AC

My config is:

XRv:

hostname XR2
telnet vrf default ipv4 server max-servers 10
line template TELNET
exec-timeout 0 0
!
line default
exec-timeout 0 0
!
vty-pool default 0 99 line-template TELNET
interface Loopback0
ipv4 address 20.20.20.20 255.255.255.0
!
interface MgmtEth0/0/CPU0/0
ipv4 address 172.16.33.207 255.255.255.0
!
interface GigabitEthernet0/0/0/0
!
interface GigabitEthernet0/0/0/0.100 l2transport
encapsulation dot1q 100 exact
!
interface GigabitEthernet0/0/0/0.102
description R4 e1/1
ipv4 address 12.4.20.20 255.255.255.0
encapsulation dot1q 102
!
interface GigabitEthernet0/0/0/0.103
description SW1 e1/3
ipv4 address 10.0.0.20 255.255.255.0
encapsulation dot1q 103
!
interface GigabitEthernet0/0/0/0.105
description R8 e1/2
encapsulation dot1q 105
!
interface GigabitEthernet0/0/0/0.110 l2transport
encapsulation dot1q 110 exact
rewrite ingress tag pop 1 symmetric
!
router static
address-family ipv4 unicast
0.0.0.0/0 172.16.33.254
!
!
router ospf 1
router-id 20.20.20.20
mpls ldp sync
mpls ldp auto-config
area 0
authentication-key encrypted 022527722E
authentication message-digest
message-digest-key 1 md5 encrypted 0478282F2A
interface Loopback0
passive enable
!
interface GigabitEthernet0/0/0/0.102
network point-to-point
!
!
!
router bgp 1284
address-family vpnv4 unicast
!
neighbor 5.5.5.5
remote-as 1284
update-source Loopback0
address-family vpnv4 unicast
!
!
!
l2vpn
router-id 20.20.20.20
pw-class AToM
encapsulation mpls
!
!
pw-class Ether
encapsulation mpls
transport-mode vlan
!
!
xconnect group AToM
p2p AToM
interface GigabitEthernet0/0/0/0.100
neighbor ipv4 1.1.1.1 pw-id 100
pw-class AToM
!
interworking ipv4
!
!
xconnect group Test
p2p AToM
interface GigabitEthernet0/0/0/0.110
neighbor ipv4 1.1.1.1 pw-id 111
pw-class Ether
!
!
!
!
mpls ldp
neighbor
password encrypted 0222217D2A332315616A5C
1.1.1.1:0 password encrypted 08026F672C
2.2.2.2:0 password encrypted 0027302F21
3.3.3.3:0 password encrypted 0327782223
4.4.4.4:0 password encrypted 072C02656B
5.5.5.5:0 password encrypted 0327782223
6.6.6.6:0 password encrypted 106D2A3020
10.10.10.10:0 password encrypted 0327782223
20.20.20.20:0 password encrypted 123A263E37
!
address-family ipv4
!
!
end

IOS:

hostname R1
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
!
!
!
!
!
!
ip cef
no ipv6 cef
!
!
mpls ldp password required for 1
mpls ldp password option 1 for 1 CCIE
mpls ldp password option 2 for 99 DEFAULTMD5
frame-relay switching
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
!
!
pseudowire-class AToM
encapsulation mpls
interworking ip
!
!
!
!
!
!
!
!
!
!
interface Loopback0
ip address 1.1.1.1 255.255.255.255
!
interface FastEthernet0/0
no ip address
shutdown
duplex full
!
interface Serial1/0
mtu 1504
no ip address
encapsulation frame-relay
serial restart-delay 0
frame-relay intf-type dce
!
interface Serial1/1
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/2
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/3
no ip address
shutdown
serial restart-delay 0
!
interface Ethernet2/0
ip address 12.1.3.1 255.255.255.0
ip ospf message-digest-key 1 md5 CCIE
ip ospf network point-to-point
duplex full
!
interface Ethernet2/1
no ip address
duplex full
no keepalive
!
interface Ethernet2/1.110
encapsulation dot1Q 110
xconnect 20.20.20.20 111 encapsulation mpls
!
interface Ethernet2/2
no ip address
shutdown
duplex full
!
interface Ethernet2/3
no ip address
shutdown
duplex full
!
router ospf 1
router-id 1.1.1.1
area 0 authentication message-digest
passive-interface Loopback0
network 1.1.1.1 0.0.0.0 area 0
network 12.0.0.0 0.255.255.255 area 0
mpls ldp sync
mpls ldp autoconfig
!
ip forward-protocol nd
!
!
no ip http server
no ip http secure-server
!
access-list 1 permit 1.1.1.1
access-list 1 permit 2.2.2.2
access-list 1 permit 3.3.3.3
access-list 1 permit 4.4.4.4
access-list 1 permit 5.5.5.5
access-list 1 permit 6.6.6.6
access-list 1 permit 10.10.10.10
access-list 1 permit 20.20.20.20
access-list 2 permit 1.1.1.1
access-list 2 permit 2.2.2.2
access-list 2 permit 3.3.3.3
access-list 2 permit 4.4.4.4
access-list 2 permit 5.5.5.5
access-list 2 permit 6.6.6.6
access-list 99 permit any
connect AToM Serial1/0 100 l2transport
xconnect 20.20.20.20 100 encapsulation mpls pw-class AToM
!
!
!
!
!
control-plane
!
alias exec wmem write mem
!
line con 0
stopbits 1
line aux 0
stopbits 1
line vty 0 4
login

Outputs from the equipment:

XRv:

RP/0/0/CPU0:XR2#show l2vpn xconnect pw-id 111
Tue Jun 3 20:22:38.207 UTC
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
------------------------ ----------------------------- -----------------------------
Test AToM DN Gi0/0/0/0.110 DN 1.1.1.1 111 DN
----------------------------------------------------------------------------------------
RP/0/0/CPU0:XR2#show l2vpn xconnect pw-id 111 detail
Tue Jun 3 20:22:39.827 UTC

Group Test, XC AToM, state is down; Interworking none
AC: GigabitEthernet0/0/0/0.110, state is down
Type VLAN; Num Ranges: 1
VLAN ranges: [110, 110]
MTU 1500; XC ID 0x2; interworking none
Error: AToM Dynamic with mismatched AC config
Statistics:
packets: received 0, sent 0
bytes: received 0, sent 0
drops: illegal VLAN 0, illegal length 0
PW: neighbor 1.1.1.1, PW ID 111, state is down ( all ready )
PW class Ether, XC ID 0xff000003
Encapsulation MPLS, protocol LDP
Source address 20.20.20.20
PW type Ethernet VLAN, control word disabled, interworking none
PW backup disable delay 0 sec
Sequencing not set

PW Status TLV in use
MPLS Local Remote
------------ ------------------------------ -----------------------------
Label 16016 33
Group ID 0x200 unknown
Interface GigabitEthernet0/0/0/0.110 unknown
MTU 1500 1500
Control word disabled disabled
PW type Ethernet VLAN Ethernet VLAN
VCCV CV type 0x2 0x12
(LSP ping verification) (LSP ping verification)
VCCV CC type 0x6 0x6
(router alert label) (router alert label)
(TTL expiry) (TTL expiry)
------------ ------------------------------ -----------------------------
Incoming Status (PW Status TLV):
Status code: 0x0 (Up) in Notification message
Outgoing Status (PW Status TLV):
Status code: 0x6 (AC Down) in Notification message
MIB cpwVcIndex: 4278190083
Create time: 03/06/2014 20:07:05 (00:15:34 ago)
Last time status changed: 03/06/2014 20:22:22 (00:00:17 ago)
Last time PW went down: 03/06/2014 20:22:22 (00:00:17 ago)
Statistics:
packets: received 0, sent 0
bytes: received 0, sent 0

IOS:

R1#show mpls l2transport vc 111 detail
Local interface: Et2/1.110 up, line protocol up, Eth VLAN 110 up
Destination address: 20.20.20.20, VC ID: 111, VC status: down
Last error: Remote peer access circuit is down
Output interface: Et2/0, imposed label stack {27 16016}
Preferred path: not configured
Default path: active
Next hop: 12.1.3.3
Create time: 00:14:19, last status change time: 00:03:25
Last label FSM state change time: 00:09:45
Signaling protocol: LDP, peer 20.20.20.20:0 up
Targeted Hello: 1.1.1.1(LDP Id) -> 20.20.20.20, LDP is UP
Status TLV support (local/remote) : enabled/supported
LDP route watch : enabled
Label/status state machine : established, 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 AC(rx/tx faults)
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 AC(rx/tx faults)
Last remote LDP ADJ status rcvd: No fault
MPLS VC labels: local 33, remote 16016
Group ID: local 0, remote 512
MTU: local 1500, remote 1500
Remote interface description: GigabitEthernet0_0_0_0.110
Sequencing: receive disabled, send disabled
Control Word: Off (configured: autosense)
Dataplane:
SSM segment/switch IDs: 16398/8204 (used), PWID: 2
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

It looks like XRv is reporting its AC as down to the Pseudowire process, even though it is up:

RP/0/0/CPU0:XR2#show ip int br | incl GigabitEthernet0/0/0/0.110
Tue Jun 3 20:27:28.577 UTC
GigabitEthernet0/0/0/0.110 unassigned Up Up

Arturo Alvarez Cruz · ‎06-10-2014

Hi sheeptest

Can you share with us your configuration where you say that VPLS works. I have topology en GNS3 con 2 router PE with IOS XR but I can not make it works

in AToM and VPLS. I also tried with transport-mode vlan but it doesnot work

PE1

interface GigabitEthernet0/0/0/0.13 l2transport
encapsulation dot1q 13
rewrite ingress tag pop 1 symmetric

l2vpn
pw-class VPLS_CLASS
encapsulation mpls
transport-mode ethernet
!
!
bridge group VPLS
bridge-domain 13
interface GigabitEthernet0/0/0/0.13
!
vfi 13
neighbor 20.20.20.20 pw-id 13
pw-class VPLS_CLASS
!
!

PE2

interface GigabitEthernet0/0/0/1.13 l2transport
encapsulation dot1q 13
rewrite ingress tag pop 1 symmetric

l2vpn
pw-class VPLS_CLASS
encapsulation mpls
transport-mode ethernet
!
!
bridge group VPLS
bridge-domain 13
interface GigabitEthernet0/0/0/1.13
!
vfi 13
neighbor 19.19.19.19 pw-id 13
pw-class VPLS_CLASS
!
!

sheeptest · ‎06-26-2014

Your VPLS config looks the same as mine. You need to use /32 loopback addresses if not already. You don't need the pw-class config but it shouldn't break anything.

Note that it's just the control plane I have working, the L2VPN should come up.

I'm running IOS XRv in VMware Workstation which doesn't support dot1q trunking so I'm not expecting the data plane to work. I think it should work in VMware ESXi.

DanilZhig · ‎07-03-2014

I checked VPLS in the same scenario. Now PWs were successfully established but still no forwarding occurs. Interface counters are increasing but AC counters are not increasing:

RP/0/0/CPU0:XR1#show interfaces gigabitEthernet 0/0/0/0.100
Thu Jul 3 10:35:12.935 UTC
GigabitEthernet0/0/0/0.100 is up, line protocol is up
Interface state transitions: 1
Hardware is VLAN sub-interface(s), address is 0050.569e.b22c
Layer 2 Transport Mode
MTU 1518 bytes, BW 1000000 Kbit (Max: 1000000 Kbit)
reliability Unknown, txload Unknown, rxload Unknown
Encapsulation 802.1Q Virtual LAN,
Outer Match: Dot1Q VLAN 100
Ethertype Any, MAC Match src any, dest any
loopback not set,
Last input 00:00:52, output never
Last clearing of "show interface" counters 00:01:58
10 packets input, 85 bytes
0 input drops, 0 queue drops, 0 input errors
0 packets output, 0 bytes
0 output drops, 0 queue drops, 0 output errors

RP/0/0/CPU0:XR1#show l2vpn bridge-domain bd-name VPLS detail
Thu Jul 3 10:36:24.400 UTC
Legend: pp = Partially Programmed.
Bridge group: VPLS, bridge-domain: VPLS, id: 0, state: up, ShgId: 0, MSTi: 0
Coupled state: disabled
MAC learning: enabled
MAC withdraw: enabled
MAC withdraw for Access PW: enabled
MAC withdraw sent on: bridge port up
MAC withdraw relaying (access to access): disabled
Flooding:
Broadcast & Multicast: enabled
Unknown unicast: enabled
MAC aging time: 300 s, Type: inactivity
MAC limit: 4000, Action: none, Notification: syslog
MAC limit reached: no
MAC port down flush: enabled
MAC Secure: disabled, Logging: disabled
Split Horizon Group: none
Dynamic ARP Inspection: disabled, Logging: disabled
IP Source Guard: disabled, Logging: disabled
DHCPv4 snooping: disabled
IGMP Snooping: enabled
IGMP Snooping profile: none
MLD Snooping profile: none
Storm Control: disabled
Bridge MTU: 1500
MIB cvplsConfigIndex: 1
Filter MAC addresses:
P2MP PW: disabled
Create time: 03/07/2014 07:09:49 (03:26:35 ago)
No status change since creation
ACs: 1 (1 up), VFIs: 1, PWs: 1 (1 up), PBBs: 0 (0 up)
List of ACs:
AC: GigabitEthernet0/0/0/0.100, state is up
Type VLAN; Num Ranges: 1
VLAN ranges: [100, 100]
MTU 1500; XC ID 0x1; interworking none
MAC learning: enabled
Flooding:
Broadcast & Multicast: enabled
Unknown unicast: enabled
MAC aging time: 300 s, Type: inactivity
MAC limit: 4000, Action: none, Notification: syslog
MAC limit reached: no
MAC port down flush: enabled
MAC Secure: disabled, Logging: disabled
Split Horizon Group: none
Dynamic ARP Inspection: disabled, Logging: disabled
IP Source Guard: disabled, Logging: disabled
DHCPv4 snooping: disabled
IGMP Snooping: enabled
IGMP Snooping profile: none
MLD Snooping profile: none
Storm Control: disabled
Static MAC addresses:
Statistics:
packets: received 0, sent 0
bytes: received 0, sent 0
Storm control drop counters:
packets: broadcast 0, multicast 0, unknown unicast 0
bytes: broadcast 0, multicast 0, unknown unicast 0
Dynamic ARP inspection drop counters:
packets: 0, bytes: 0
IP source guard drop counters:
packets: 0, bytes: 0
List of Access PWs:
List of VFIs:
VFI VPLS (up)
PW: neighbor 20.20.20.20, PW ID 100, state is up ( established )
PW class VPLS, XC ID 0xff000001
Encapsulation MPLS, protocol LDP
Source address 19.19.19.19
PW type Ethernet, control word disabled, interworking none
Sequencing not set

PW Status TLV in use
MPLS Local Remote
------------ ------------------------------ -------------------------
Label 16001 16001
Group ID 0x0 0x0
Interface VPLS VPLS
MTU 1500 1500
Control word disabled disabled
PW type Ethernet Ethernet
VCCV CV type 0x2 0x2
(LSP ping verification) (LSP ping verification)
VCCV CC type 0x6 0x6
(router alert label) (router alert label)
(TTL expiry) (TTL expiry)
------------ ------------------------------ -------------------------
Incoming Status (PW Status TLV):
Status code: 0x0 (Up) in Notification message
MIB cpwVcIndex: 4278190081
Create time: 03/07/2014 07:09:49 (03:26:35 ago)
Last time status changed: 03/07/2014 08:44:04 (01:52:19 ago)
Last time PW went down: 03/07/2014 08:43:56 (01:52:28 ago)
MAC withdraw messages: sent 0, received 0
Static MAC addresses:
Statistics:
packets: received 0, sent 0
bytes: received 0, sent 0
Storm control drop counters:
packets: broadcast 0, multicast 0, unknown unicast 0
bytes: broadcast 0, multicast 0, unknown unicast 0
DHCPv4 snooping: disabled
IGMP Snooping profile: none
MLD Snooping profile: none
VFI Statistics:
drops: illegal VLAN 0, illegal length 0

My topology is:

R1(e1/0)---(gi0/0/0.100)XR1(gi0/0/0.103)----(gi0/0/0.103)XR2(gi0/0/0.101)---(e1/0)R2

My config is:

hostname XR1
!
interface Loopback0
ipv4 address 19.19.19.19 255.255.255.255
ipv6 address 2001::19:19:19:19/128
!
interface MgmtEth0/0/CPU0/0
ipv4 address 172.16.33.206 255.255.255.0
!
interface GigabitEthernet0/0/0/0
cdp
!
interface GigabitEthernet0/0/0/0.100 l2transport
encapsulation dot1q 100
rewrite ingress tag pop 1 symmetric
!
interface GigabitEthernet0/0/0/0.103
ipv4 address 10.19.20.19 255.255.255.0
ipv6 address 2001:10:19:20::19/64
encapsulation dot1q 103
!
router static
address-family ipv4 unicast
0.0.0.0/0 172.16.33.254
!
!
router ospf 1
area 0
interface Loopback0
passive enable
!
interface GigabitEthernet0/0/0/0.103
network point-to-point
!
!
!
l2vpn
pw-class VPLS
encapsulation mpls
transport-mode ethernet
!
!
bridge group VPLS
bridge-domain VPLS
interface GigabitEthernet0/0/0/0.100
!
vfi VPLS
neighbor 20.20.20.20 pw-id 100
pw-class VPLS
!
!
!
!
!
mpls oam
!
mpls ldp
log
neighbor
!
router-id 19.19.19.19
interface GigabitEthernet0/0/0/0.103
!
!
end

hostname XR2
!
interface Loopback0
ipv4 address 20.20.20.20 255.255.255.255
ipv6 address 2001::20:20:20:20/128
!
interface MgmtEth0/0/CPU0/0
vrf Management
ipv4 address 172.16.33.161 255.255.255.0
!
interface GigabitEthernet0/0/0/0
cdp
!
interface GigabitEthernet0/0/0/0.100
ipv4 address 192.168.100.14 255.255.255.0
encapsulation dot1q 100
!
interface GigabitEthernet0/0/0/0.101 l2transport
encapsulation dot1q 101
rewrite ingress tag pop 1 symmetric
!
interface GigabitEthernet0/0/0/0.103
ipv4 address 10.19.20.20 255.255.255.0
ipv6 address 2001:10:19:20::20/64
encapsulation dot1q 103
!
router static
vrf Management
address-family ipv4 unicast
0.0.0.0/0 172.16.33.254
!
!
!
router ospf 1
log adjacency changes
area 0
interface Loopback0
passive enable
!
interface GigabitEthernet0/0/0/0.103
network point-to-point
!
!
!
l2vpn
pw-class VPLS
encapsulation mpls
transport-mode ethernet
!
!
bridge group VPLS
bridge-domain VPLS
interface GigabitEthernet0/0/0/0.101
!
vfi VPLS
neighbor 19.19.19.19 pw-id 100
pw-class VPLS
!
!
!
!
!
mpls oam
!
mpls ldp
log
neighbor
!
router-id 20.20.20.20
interface GigabitEthernet0/0/0/0.103
!
!
end

varaki · ‎12-07-2015

Hi,

Know this is an old post but It's the first post I found when searching for info. May be it will help others.

Run into this problem and got it work. (control plane only because of limitations of XRv)

You have to configure the vlan under the subinterface like this:

interface GigabitEthernet0/0/0/1.100 l2transport
dot1q vlan 100

not with "encapsulation dot1q 100"

RP/0/0/CPU0:XR1#sh l2vpn xconne det
Mon Dec 7 21:43:04.741 UTC

Group XR1-R2, XC XR1-R2, state is up; Interworking none
AC: GigabitEthernet0/0/0/1.100, state is up
Type VLAN; Num Ranges: 1
VLAN ranges: [100, 100]
MTU 1500; XC ID 0x1; interworking none
Statistics:
packets: received 0, sent 0
bytes: received 0, sent 0
drops: illegal VLAN 0, illegal length 0
PW: neighbor 2.2.2.2, PW ID 219, state is up ( established )
PW class ETH-ETH, XC ID 0xff000001
Encapsulation MPLS, protocol LDP
Source address 19.19.19.19
PW type Ethernet VLAN, control word disabled, interworking none
PW backup disable delay 0 sec
Sequencing not set

PW Status TLV in use
MPLS Local Remote
------------ ------------------------------ -----------------------------
Label 24012 28
Group ID 0x300 unknown
Interface GigabitEthernet0/0/0/1.100 unknown
MTU 1500 1500
Control word disabled disabled
PW type Ethernet VLAN Ethernet VLAN
VCCV CV type 0x2 0x2
(LSP ping verification) (LSP ping verification)
VCCV CC type 0x6 0x6
(router alert label) (router alert label)
(TTL expiry) (TTL expiry)
------------ ------------------------------ -----------------------------
Incoming Status (PW Status TLV):
Status code: 0x0 (Up) in Notification message
Outgoing Status (PW Status TLV):
Status code: 0x0 (Up) in Notification message
MIB cpwVcIndex: 4278190081
Create time: 07/12/2015 17:18:52 (04:24:12 ago)
Last time status changed: 07/12/2015 21:38:40 (00:04:23 ago)
Last time PW went down: 07/12/2015 17:25:36 (04:17:28 ago)
Statistics:
packets: received 0, sent 0
bytes: received 0, sent 0

Regards,

Víctor.

nassef2010 · ‎01-27-2016

This was really helpful , thank you

But Data plane is not working, any advice?

And if this is due to emulating issue, does this work for real life network?

tomkiv897 · ‎03-13-2018

This is a strange "bug". I was just running into this issue on 6.0.1 XRv, I also tested it in 6.2.3 XRv9k. 6.0.1 has "dot1q vlan" command, which brings up PW, but not 6.2.3. I could not get this working in 6.2.3. Port mode PW works fine, have not tried VPLS.

6.0.1:

RP/0/0/CPU0:XRv-R21#show run int gig 0/0/0/1.100
Tue Mar 13 21:40:18.008 UTC
interface GigabitEthernet0/0/0/1.100 l2transport
dot1q vlan 100
!

RP/0/0/CPU0:XRv-R21#
RP/0/0/CPU0:XRv-R21#show l2vpn xconnect
Tue Mar 13 21:40:26.587 UTC
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
------------------------ ----------------------------- -----------------------------
PW PW101 UP Gi0/0/0/1.100 UP 2.2.2.2 101 UP
----------------------------------------------------------------------------------------

6.2.3:

RP/0/RP0/CPU0:XRv-R41# show vers
Wed Mar 14 04:42:16.265 UTC

Build Information:
Built By : ahoang
Built On : Thu Dec 21 19:30:35 PST 2017
Build Host : iox-lnx-053
Workspace : /auto/srcarchive11/production/6.2.3/xrv9k/workspace
Version : 6.2.3
Location : /opt/cisco/XR/packages/

cisco IOS-XRv 9000 () processor
System uptime is 26 minutes

RP/0/RP0/CPU0:XRv-R41#
RP/0/RP0/CPU0:XRv-R41#
RP/0/RP0/CPU0:XRv-R41#
RP/0/RP0/CPU0:XRv-R41#config t
Wed Mar 14 04:43:54.916 UTC
int RP/0/RP0/CPU0:XRv-R41(config)#int gig 0/0/0/1.100 l2transport
RP/0/RP0/CPU0:XRv-R41(config-subif)#dot?
^
% Invalid input detected at '^' marker.
RP/0/RP0/CPU0:XRv-R41(config-subif)#encapsulation ?
default Packets unmatched by other service instances
dot1ad IEEE 802.1ad VLAN-tagged packets
dot1q IEEE 802.1Q VLAN-tagged packets
untagged Packets with no explicit VLAN tag
RP/0/RP0/CPU0:XRv-R41(config-subif)#encapsulation

IOS XRv Error: AToM Dynamic with mismatched AC config