01-27-2012 02:02 AM
Hi,
I'm trying to set up a L2VPN(Vlan Mode) between a trunk port on an ASR9000, and an ME3800x.
The ASR is set up with an EFP:
interface GigabitEthernet0/0/0/19.912 l2transport
encapsulation dot1q 912
rewrite ingress tag pop 1 symmetric
mtu 1618
!
l2vpn
pw-class VlanMode
encapsulation mpls
transport-mode vlan
!
xconnect group orkide
!
p2p OrkideSurnadal
interface GigabitEthernet0/0/0/19.912
neighbor xxx.xxx.xxx.75 pw-id 912
pw-class VlanMode
!
On the other side I have terminated the xconnect on an ME3800x:
interface Vlan912
mtu 1600
no ip address
xconnect xxx.xxx.xxx.82 912 encapsulation mpls
end
The VC is UP:
Local intf Local circuit Dest address VC ID Status
------------- -------------------------- --------------- ---------- ----------
Vl912 Eth VLAN 912 xxx.xxx.xxx.82 912 UP
Is this the correct way to to do this?
I can't get this to work like it should. If I should do this with switches, I would just configure a vlan from end-to-end.
Thanks in advance,
Jan Ove Greger
Solved! Go to Solution.
01-30-2012 07:31 AM
Hi Jan,
I am not sure of ME3800 configuration and its VLAN handling. Do you know if it sends tagged or non-tagged packets to the ASR9k?
With the current configuration, ASR9k removes the VLAN tag before sending it to the ME end. Hence, the expectation that the ME would push the VLAN back sending the traffic to the end customer and the ME38 to remove the VLAN tag sending the traffic to ASR9k.
We do we get something over the PW
!
packets: received 134, sent 12
bytes: received 9112, sent 816
!
I suspect there is some mismatch in VLAN handling between the devices and hence end to end VLAN mismatch.
May you try to remove rewrite ingress tag pop 1 symmetric from the ASR9k? this way the ASR9k would send tagged packets towards the ME switch. That is in order to verify if the ME sends tagged packets back to us too.
Regards,
/A
01-27-2012 01:19 PM
Hello Jan,
You said “If I should do this with switches, I would just configure a vlan from end-to-end.” I may didn’t get it correctly. Are these switches directly connected to each other or is there MPLS network between them? Just want to be sure we really need L2VPN here.
For the configuration I suggest to use VC5 mode. (ASR uses it by default, so just remove the pw-class).
!
l2vpn
!
xconnect group orkide
!
p2p OrkideSurnadal
interface GigabitEthernet0/0/0/19.912
neighbor xxx.xxx.xxx.75 pw-id 912
!
Collect “sh l2vpn xconnect detail” from ASR after the reconfiguration.
Regards,
/A
01-30-2012 03:12 AM
Hi,
I'm sorry for the confusion, but there is an MPLS network between them.
I tried using VC5/Ethernet mode, and the xconnect is UP again:
Group orkide, XC OrkideSurnadal, state is up; Interworking none
AC: GigabitEthernet0/0/0/19.912, state is up
Type VLAN; Num Ranges: 1
VLAN ranges: [912, 912]
MTU 1600; XC ID 0x40011; interworking none
Statistics:
packets: received 134, sent 12
bytes: received 9112, sent 816
drops: illegal VLAN 0, illegal length 0
PW: neighbor 85.93.224.75, PW ID 912, state is up ( established )
PW class not set, XC ID 0x40011
Encapsulation MPLS, protocol LDP
PW type Ethernet, control word disabled, interworking none
PW backup disable delay 0 sec
Sequencing not set
MPLS Local Remote
------------ ------------------------------ -----------------------------
Label 16003 20
Group ID 0x5c0 0x0
Interface GigabitEthernet0/0/0/19.912 unknown
MTU 1600 1600
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)
------------ ------------------------------ -----------------------------
MIB cpwVcIndex: 0
Create time: 30/01/2012 19:52:07 (00:04:34 ago)
Last time status changed: 30/01/2012 19:52:07 (00:04:34 ago)
Statistics:
packets: received 12, sent 134
bytes: received 816, sent 9112
But still no connection or mac-adresses on vlan 912 on the trunk of the ME3800x.
For testing we have setup a network 10.33.33.1/24 on vlan 912 of the AC on the ASR. On the trunk port of the ME3800x we have a 3560 where we also have configured 10.33.33.10/24 on vlan 912.
So they should be able to see each other, but they don't...
Regards,
JoG
01-30-2012 07:31 AM
Hi Jan,
I am not sure of ME3800 configuration and its VLAN handling. Do you know if it sends tagged or non-tagged packets to the ASR9k?
With the current configuration, ASR9k removes the VLAN tag before sending it to the ME end. Hence, the expectation that the ME would push the VLAN back sending the traffic to the end customer and the ME38 to remove the VLAN tag sending the traffic to ASR9k.
We do we get something over the PW
!
packets: received 134, sent 12
bytes: received 9112, sent 816
!
I suspect there is some mismatch in VLAN handling between the devices and hence end to end VLAN mismatch.
May you try to remove rewrite ingress tag pop 1 symmetric from the ASR9k? this way the ASR9k would send tagged packets towards the ME switch. That is in order to verify if the ME sends tagged packets back to us too.
Regards,
/A
01-31-2012 05:13 AM
Hi,
I was not sure of the ME3800s handling of VLAN either, so I tried removing the "rewrite ingress tag pop 1 symmetric".
And that worked!
I now have connection all the way through.
Great, thanks for the help.
Regards,
JoG
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