Hi all,
I've done extensive testing and I would like some confirmation regarding my conclusions:
1. rewrite ingress tag pop 1 symmetric has no effect on Layer 2 control frames (STP, CDP, etc).
2. access and trunk connections on each end of a pseudowire works fine (popping of tagged ingress data frames)
3. l2protocol tunneling is not supported (due to item 1 above)
I have the following topology - client A and client B are standard switches and SW01 and SW03 are ME3600s.
ClientA --> access int (vlan 10) --> SW01 --> Pseudowire --> SW03 --> dot1q trunk --> Client B
I observe the following log messages on ClientA:
*Oct 16 08:22:02.727: %SPANTREE-SP-7-RECV_1Q_NON_TRUNK: Received 802.1Q BPDU on non trunk TenGigabitEthernet2/2 VLAN10.
*Oct 16 08:22:02.727: %SPANTREE-SP-7-BLOCK_PORT_TYPE: Blocking TenGigabitEthernet2/2 on VLAN0010. Inconsistent port type.
And the following on ClientB:
*Oct 16 08:35:08.951: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on TenGigabitEthernet1/2 (1), with ClientA TenGigabitEthernet2/2 (10).
Configurations
Client A:
interface TenGigabitEthernet2/2
switchport
switchport access vlan 10
switchport mode access
SW01
interface TenGigabitEthernet0/1
switchport trunk native vlan 10
switchport trunk allowed vlan none
switchport mode trunk
service instance 10 ethernet
encapsulation untagged
l2protocol tunnel
xconnect 192.1.0.3 10 encapsulation mpls
SW03
interface TenGigabitEthernet0/1
switchport trunk allowed vlan none
switchport mode trunk
service instance 10 ethernet
encapsulation dot1q 10
rewrite ingress tag pop 1 symmetric
l2protocol tunnel
xconnect 192.1.0.1 10 encapsulation mpls
ClientB
interface TenGigabitEthernet1/2
switchport
switchport mode trunk
