Hi,
It would be useful to see your PE configuration and have details of the
hardware and OS versions.
I recently came across an issue like this when using ASR1001s as PEs.
As far as I could tell the ASRs wouldn't match up a double tagged packet
to an interface defined to match a single tag. Eventually an IOS
upgrade fixed this problem. You can easily test by reconfiguring the PE
interface to "encapsulation dot1Q xxx second‐dot1q any" then you may be
able to pass the double tagged traffic but no longer the traffic in the
native vlan (single SVID only).
asr1000rp1‐advipservicesk9.03.04.01.S.151‐3.S1.bin fixed the issue for
me. (I had trouble with
asr1000rp1-advipservicesk9.03.03.01.S.151‐2.S1.bin and
asr1001‐universalk9.03.02.00.S.151‐1.S.bin
Ivan
On 28/Oct/2011 5:28 a.m., Gökhan Gümüş wrote:
Dear folks,
I have an issue with one of our customer service.
Gi0/5
Gi0/27
Gi5/13 Fa3/13
Customer SW ---------------- Customer Edge Switch-A ----------------PE1
----------MPLS Core --------------PE 2--------------Customer Edge Switch-B
--------------Customer SW
I am using q-in-q tunneling to enable customer traffic. Before, customer
port on Customer SW facing our edge switch was in ACCESS mode and it was
working.
Now they have decided to configure this interface as a TRUNK to transmit
multiple VLANs over the trunk. But they can not.
Currently ports are configured as trunk and customer can only transmit
traffic when they do not tag frames ( native-vlan config )
For note, i am not using " vlan dot1q tag native " command which is also
double-tagging native vlans.
MTU is fine and above 1504 bytes.
Please see our configs on Customer Edge Switch below;
*Customer Edge Switch A;*
A#sh run interface Gigabit Ethernet0/5
Building configuration...
Current configuration : 337 bytes
!
interface GigabitEthernet0/5
switchport access vlan 1106
switchport mode dot1q-tunnel
switchport nonegotiate
load-interval 60
speed 100
duplex full
l2protocol-tunnel cdp
l2protocol-tunnel stp
l2protocol-tunnel vtp
no cdp enable
end
A#sh run interface GigabitEthernet0/27
Building configuration...
Current configuration : 251 bytes
!
interface GigabitEthernet0/27
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,9,1101,1102,1106
switchport mode trunk
switchport nonegotiate
end
---------------------------------------------------------------------------------
*Customer Edge Switch B;*
B#sh run interface fa3/13
Building configuration...
Current configuration : 366 bytes
!
interface FastEthernet3/13
mtu 2000
load-interval 60
switchport
switchport access vlan 1106
switchport mode dot1q-tunnel
switchport nonegotiate
l2protocol-tunnel cdp
l2protocol-tunnel stp
l2protocol-tunnel vtp
no cdp enable
spanning-tree bpdufilter enable
end
B#sh run interface gi5/13
Building configuration...
Current configuration : 298 bytes
!
interface GigabitEthernet5/13
mtu 2000
load-interval 30
speed nonegotiate
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1101,1102,1106
switchport mode trunk
no cdp enable
end
Is there anybody who had such issue before?
Thanks and regards,
Gokhan Gumus
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