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Cisco Employee

AToM L2VPN circuit is up but not passing traffic

Hi All I have a problem with the following setup: I am running ospf as IGP and mpls is enabled in the core. PE1 is regular ios and PE2 is ios-xr. CE ----- PE1----MPLS CORE----PE2-----CE I have a layer 2 vpn setup between my PEs and it shows that it is up but for some reason no traffic is being passed over the circuit. What could I have possibly missed?? Here is the config: PE1: ----- Building configuration... Current configuration : 5280 bytes ! ! Last configuration change at 10:55:04 UTC Sat Jul 12 2014 ! version 15.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R2 ! boot-start-marker boot-end-marker ! ! ! no aaa new-model ! ! ! mmi polling-interval 60 no mmi auto-configure no mmi pvc mmi snmp-timeout 180 ! ip cef no ipv6 cef ! multilink bundle-name authenticated ! ! cts logging verbose ! ! ! redundancy ! ! pseudowire-class ETH_TO_ETH encapsulation mpls ! ! interface Loopback0 ip address 2.2.2.2 255.255.255.255 ip ospf 1 area 0 ! interface GigabitEthernet0/0 ip address 10.18.0.10 255.255.0.0 shutdown duplex auto speed auto media-type rj45 ! interface GigabitEthernet0/1 ip address 10.1.23.2 255.255.255.0 ip ospf 1 area 0 duplex full speed auto media-type rj45 ! interface GigabitEthernet0/2 no ip address duplex full speed auto media-type rj45 xconnect 11.11.11.11 1 encapsulation mpls pw-class ETH_TO_ETH ! interface GigabitEthernet0/3 no ip address shutdown duplex auto speed auto media-type rj45 ! router ospf 1 mpls ldp autoconfig router-id 2.2.2.2 network 10.1.23.0 0.0.0.255 area 0 ! ip forward-protocol nd ! ! no ip http server no ip http secure-server ! control-plane ! line con 0 line aux 0 line vty 0 4 login transport input none ! no scheduler allocate ! end PE2: ------ RP/0/0/CPU0:XR1#sh run Sat Jul 12 11:44:02.568 UTC Building configuration... !! IOS XR Configuration 4.3.2 !! Last configuration change at Sat Jul 12 10:26:49 2014 by CVAC ! hostname XR1 interface Loopback0 ipv4 address 11.11.11.11 255.255.255.255 ! interface MgmtEth0/0/CPU0/0 shutdown ! interface GigabitEthernet0/0/0/0 ipv4 address 10.1.61.1 255.255.255.0 ! interface GigabitEthernet0/0/0/1 l2transport ! ! interface GigabitEthernet0/0/0/2 shutdown ! router ospf 1 router-id 11.11.11.11 area 0 interface Loopback0 ! interface GigabitEthernet0/0/0/0 ! ! ! l2vpn pw-class ETH_TO_ETH encapsulation mpls ! ! xconnect group GROUP1 p2p PORT1 interface GigabitEthernet0/0/0/1 neighbor ipv4 2.2.2.2 pw-id 1 pw-class ETH_TO_ETH ! ! ! ! mpls ldp interface GigabitEthernet0/0/0/0 ! ! end IOS: ------ R2#sh version Cisco IOS Software, IOSv Software (VIOS-ADVENTERPRISEK9-M), Version 15.4(2.15)T, ENGINEERING WEEKLY BUILD, synced to V153_3_M2_6 Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2014 by Cisco Systems, Inc. Compiled Mon 12-May-14 15:02 by sdcunha *** IOSv: UNSUPPORTED DEMO VERSION ONLY *** ROM: Bootstrap program is IOSv R2 uptime is 2 days, 21 hours, 7 minutes System returned to ROM by reload System image file is "flash0:/vios-adventerprisek9-m" Last reload reason: Unknown reason This product contains cryptographic features and is subject to United States and local country laws governing import, export, transfer and use. Delivery of Cisco cryptographic products does not imply third-party authority to import, export, distribute or use encryption. Importers, exporters, distributors and users are responsible for compliance with U.S. and local country laws. By using this product you agree to comply with applicable laws and regulations. If you are unable to comply with U.S. and local laws, return this product immediately. A summary of U.S. laws governing Cisco cryptographic products may be found at: http://www.cisco.com/wwl/export/crypto/tool/stqrg.html If you require further assistance please contact us by sending email to export@cisco.com. Cisco IOSv (revision 1.0) with with 460165K/62464K bytes of memory. Processor board ID 94AW9O2OVNEYM5K59DX7F 4 Gigabit Ethernet interfaces DRAM configuration is 72 bits wide with parity disabled. 256K bytes of non-volatile configuration memory. 2097152K bytes of ATA System CompactFlash 0 (Read/Write) 0K bytes of ATA CompactFlash 1 (Read/Write) 10240K bytes of ATA CompactFlash 2 (Read/Write) 0K bytes of ATA CompactFlash 3 (Read/Write) Configuration register is 0x0 R2#sh ip route 11.11.11.11 Routing entry for 11.11.11.11/32 Known via "ospf 1", distance 110, metric 6, type intra area Last update from 10.1.23.3 on GigabitEthernet0/1, 2d21h ago Routing Descriptor Blocks: * 10.1.23.3, from 11.11.11.11, 2d21h ago, via GigabitEthernet0/1 Route metric is 6, traffic share count is 1 R2#sh mpls for R2#sh mpls forwarding-table 11.11.11.11 Local Outgoing Prefix Bytes Label Outgoing Next Hop Label Label or Tunnel Id Switched interface 25 23 11.11.11.11/32 0 Gi0/1 10.1.23.3 R2#sh mpls ldp nei R2#sh mpls ldp neighbor Peer LDP Ident: 3.3.3.3:0; Local LDP Ident 2.2.2.2:0 TCP connection: 3.3.3.3.62800 - 2.2.2.2.646 State: Oper; Msgs sent/rcvd: 4752/4692; Downstream Up time: 2d21h LDP discovery sources: GigabitEthernet0/1, Src IP addr: 10.1.23.3 Addresses bound to peer LDP Ident: 10.1.23.3 10.1.34.3 3.3.3.3 Peer LDP Ident: 11.11.11.11:0; Local LDP Ident 2.2.2.2:0 TCP connection: 11.11.11.11.23205 - 2.2.2.2.646 State: Oper; Msgs sent/rcvd: 4755/4843; Downstream Up time: 2d21h LDP discovery sources: Targeted Hello 2.2.2.2 -> 11.11.11.11, active, passive Addresses bound to peer LDP Ident: 11.11.11.11 10.1.61.1 R2#sh mpls ldp disco Local LDP Identifier: 2.2.2.2:0 Discovery Sources: Interfaces: GigabitEthernet0/1 (ldp): xmit/recv LDP Id: 3.3.3.3:0 Targeted Hellos: 2.2.2.2 -> 11.11.11.11 (ldp): active/passive, xmit/recv LDP Id: 11.11.11.11:0 R2#sh mpls l2 R2#sh mpls l2transport vc 1 det Local interface: Gi0/2 up, line protocol up, Ethernet up Destination address: 11.11.11.11, VC ID: 1, VC status: up Output interface: Gi0/1, imposed label stack {23 16000} Preferred path: not configured Default path: active Next hop: 10.1.23.3 Create time: 2d21h, last status change time: 2d20h Last label FSM state change time: 2d20h Last peer autosense occurred at: 2d21h Signaling protocol: LDP, peer 11.11.11.11:0 up Targeted Hello: 2.2.2.2(LDP Id) -> 11.11.11.11, 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 : established, LruRru 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: No fault Last local PW i/f circ status rcvd: No fault Last local LDP TLV status sent: No fault Last remote LDP TLV status rcvd: No fault Last remote LDP ADJ status rcvd: No fault MPLS VC labels: local 16, remote 16000 Group ID: local 0, remote 512 MTU: local 1500, remote 1500 Remote interface description: GigabitEthernet0_0_0_1 Sequencing: receive disabled, send disabled Control Word: Off (configured: autosense) Dataplane: SSM segment/switch IDs: 8195/4096 (used), PWID: 1 VC statistics: transit packet totals: receive 0, send 436 transit byte totals: receive 0, send 44114 transit packet drops: receive 0, seq error 0, send 0 IOS-XR ----------- RP/0/0/CPU0:XR1#show platform Tue Jul 15 09:07:22.446 UTC Node Type PLIM State Config State ----------------------------------------------------------------------------- 0/0/CPU0 RP N/A IOS XR RUN PWR,NSHUT,MON RP/0/0/CPU0:XR1# RP/0/0/CPU0:XR1# RP/0/0/CPU0:XR1# RP/0/0/CPU0:XR1#sh install active summary Tue Jul 15 09:07:37.225 UTC Default Profile: Admin Resources SDRs: Owner Active Packages: disk0:xrvr-fullk9-x-4.3.2 RP/0/0/CPU0:XR1# RP/0/0/CPU0:XR1# RP/0/0/CPU0:XR1# RP/0/0/CPU0:XR1#sh route 2.2.2.2/32 Tue Jul 15 09:08:06.773 UTC Routing entry for 2.2.2.2/32 Known via "ospf 1", distance 110, metric 6, type intra area Installed Jul 12 10:26:59.185 for 2d22h Routing Descriptor Blocks 10.1.61.6, from 2.2.2.2, via GigabitEthernet0/0/0/0 Route metric is 6 No advertising protos. RP/0/0/CPU0:XR1# RP/0/0/CPU0:XR1# RP/0/0/CPU0:XR1#show mpls forwarding prefix 2.2.2.2/32 Tue Jul 15 09:08:26.211 UTC Local Outgoing Prefix Outgoing Next Hop Bytes Label Label or ID Interface Switched ------ ----------- ------------------ ------------ --------------- ------------ 16001 20 2.2.2.2/32 Gi0/0/0/0 10.1.61.6 2325874 RP/0/0/CPU0:XR1# RP/0/0/CPU0:XR1# RP/0/0/CPU0:XR1# RP/0/0/CPU0:XR1#sh mpls disco ^ % Invalid input detected at '^' marker. RP/0/0/CPU0:XR1#sh mpls ldp disc Tue Jul 15 09:08:45.870 UTC Local LDP Identifier: 11.11.11.11:0 Discovery Sources: Interfaces: GigabitEthernet0/0/0/0 : xmit/recv LDP Id: 6.6.6.6:0, Transport address: 6.6.6.6 Hold time: 15 sec (local:15 sec, peer:15 sec) Targeted Hellos: 11.11.11.11 -> 2.2.2.2 (active), xmit/recv LDP Id: 2.2.2.2:0 Hold time: 90 sec (local:90 sec, peer:90 sec) RP/0/0/CPU0:XR1# RP/0/0/CPU0:XR1# RP/0/0/CPU0:XR1# RP/0/0/CPU0:XR1#sh mpls ldp nei Tue Jul 15 09:08:57.329 UTC Peer LDP Identifier: 6.6.6.6:0 TCP connection: 6.6.6.6:646 - 11.11.11.11:53951 Graceful Restart: No Session Holdtime: 180 sec State: Oper; Msgs sent/rcvd: 4854/4728; Downstream-Unsolicited Up time: 2d22h LDP Discovery Sources: GigabitEthernet0/0/0/0 Addresses bound to this peer: 6.6.6.6 10.1.56.6 10.1.61.6 Peer LDP Identifier: 2.2.2.2:0 TCP connection: 2.2.2.2:646 - 11.11.11.11:23205 Graceful Restart: No Session Holdtime: 180 sec State: Oper; Msgs sent/rcvd: 4861/4773; Downstream-Unsolicited Up time: 2d22h LDP Discovery Sources: Targeted Hello (11.11.11.11 -> 2.2.2.2, active) Addresses bound to this peer: 2.2.2.2 10.1.23.2 RP/0/0/CPU0:XR1# RP/0/0/CPU0:XR1# RP/0/0/CPU0:XR1#sh l2vpn xconnect group GROUP1 detail Tue Jul 15 09:09:33.827 UTC Group GROUP1, XC PORT1, state is up; Interworking none AC: GigabitEthernet0/0/0/1, 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 2.2.2.2, PW ID 1, state is up ( established ) PW class ETH_TO_ETH, XC ID 0xff000001 Encapsulation MPLS, protocol LDP Source address 11.11.11.11 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 16000 16 Group ID 0x200 unknown Interface GigabitEthernet0/0/0/1 unknown 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 0x2 (router alert label) (router alert label) (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: 12/07/2014 10:26:54 (2d22h ago) Last time status changed: 12/07/2014 10:56:01 (2d22h ago) Last time PW went down: 12/07/2014 10:55:31 (2d22h ago) Statistics: packets: received 0, sent 0 bytes: received 0, sent 0 RP/0/0/CPU0:XR1# RP/0/0/CPU0:XR1# RP/0/0/CPU0:XR1#sh l2vpn xconnect group GROUP1 xc-ETH_TO_ETH PORT1 det ^ % Invalid input detected at '^' marker. RP/0/0/CPU0:XR1#sh l2vpn xconnect group GROUP1 ETH_TO_ETH PORT1 det ^ % Invalid input detected at '^' marker. RP/0/0/CPU0:XR1#sh l2vpn xconnect group GROUP1 ? detail Detailed information location Location specific information private Private information(cisco-support) standby Standby node specific information xc-name Filter on XConnect Name | Output Modifiers RP/0/0/CPU0:XR1#sh l2vpn xconnect group GROUP1 xc-name PORT1 deta Tue Jul 15 09:12:31.955 UTC Group GROUP1, XC PORT1, state is up; Interworking none AC: GigabitEthernet0/0/0/1, 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 2.2.2.2, PW ID 1, state is up ( established ) PW class ETH_TO_ETH, XC ID 0xff000001 Encapsulation MPLS, protocol LDP Source address 11.11.11.11 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 16000 16 Group ID 0x200 unknown Interface GigabitEthernet0/0/0/1 unknown 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 0x2 (router alert label) (router alert label) (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: 12/07/2014 10:26:54 (2d22h ago) Last time status changed: 12/07/2014 10:56:01 (2d22h ago) Last time PW went down: 12/07/2014 10:55:31 (2d22h ago) Statistics: packets: received 0, sent 0 bytes: received 0, sent 0 RP/0/0/CPU0:XR1#
2 ACCEPTED SOLUTIONS

Accepted Solutions
Cisco Employee

HiCan you please collect

Hi

Can you please collect information below.

IOS
===
show ver
show ip route 11.11.11.11
show mpls forwarding 11.11.11.11
show mpls ldp neighbor
show mpls ldp discovery
show mpls l2transport vc 1 detail


IOS-XR
======
show platform
show install active summary
show route 2.2.2.2/32
show mpls forwarding prefix 2.2.2.2/32
show mpls discovery
show mpls ldp neighbor
sh l2vpn xconnect group GROUP1 detail
sh l2vpn xconnect group GROUP1 xc-name PORT1 detail

Also please configure mpls router-id on both PE.

IOS

mpls ldp router-id loopback0

XR

mpls ldp

router-id 11.11.11.11

 

 


Best Regards,

Bheem

Cisco Employee

This will not work. the

This will not work. the virtual XR software (XRv) does not support hardware forwarding for L2VPN. L2VPN is a platform dependent (PD) feature which means, the hardware needs to be programmed in order for L2VPN to work. XRv only supports PI features so far for L2VPN. So you can only verify the control plane not the data plane.

Hope this explains your problem.

Regards

Vinit

PS: Please rate useful posts

Thanks
--Vinit
8 REPLIES
Cisco Employee

HiCan you please collect

Hi

Can you please collect information below.

IOS
===
show ver
show ip route 11.11.11.11
show mpls forwarding 11.11.11.11
show mpls ldp neighbor
show mpls ldp discovery
show mpls l2transport vc 1 detail


IOS-XR
======
show platform
show install active summary
show route 2.2.2.2/32
show mpls forwarding prefix 2.2.2.2/32
show mpls discovery
show mpls ldp neighbor
sh l2vpn xconnect group GROUP1 detail
sh l2vpn xconnect group GROUP1 xc-name PORT1 detail

Also please configure mpls router-id on both PE.

IOS

mpls ldp router-id loopback0

XR

mpls ldp

router-id 11.11.11.11

 

 


Best Regards,

Bheem

Community Member

Hi, i have the same scenario

Hi, i have the same scenario and exactly same problem but it still not passing any traffic.

Although if i remove IOS XR and do it on IOS only, then its working fine.

any ideas please?

Cisco Employee

Are you testing it on real

Are you testing it on real hardware or VIRL?

Thanks
--Vinit
Community Member

in GNS3

in GNS3

Cisco Employee

This will not work. the

This will not work. the virtual XR software (XRv) does not support hardware forwarding for L2VPN. L2VPN is a platform dependent (PD) feature which means, the hardware needs to be programmed in order for L2VPN to work. XRv only supports PI features so far for L2VPN. So you can only verify the control plane not the data plane.

Hope this explains your problem.

Regards

Vinit

PS: Please rate useful posts

Thanks
--Vinit
Community Member

Thanks Vinit, just got the

Thanks Vinit, just got the same response from a friend as well.

Cisco Employee

Re: This will not work. the

thanks very much Vineet , i did setup a L2VPN tunnel  in GNS using IOS-XRv image and from control plane side it is showing up however no traffic ( mainly icmp ) is passing . I was searching for exact explanation and found corrctly from your post.

Cisco Employee

Hi, I have since learned

Hi, I have since learned L2VPN circuit between IOS PE and IOS-XRv PE will show that it is up but will not pass traffic due to a limitation on XRv, hence it is working fine among IOS devices.  

Check these links below to understand what features are supported and which ones are not supported: 

https://learningnetwork.cisco.com/thread/91813

https://supportforums.cisco.com/discussion/12101386/xrv-511-workingnon-working-features-and-roadmap

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