Hello everyone,
This post refers to the eNSP Bug Report - QinQ. Please find more information below.
QinQ seems to be broken in the switch module at least.
In my scenario, packets only flow correctly in 1 direction. Packets flow between R1 towards R2. But packets from R2 do not reach R1. VLAN 10 is the PE (outer) VLAN. VLAN 100 is the CE (inner) VLAN.
AR1220_R1 (QinQ termination subinterface) <-----QinQ packets---> Switch <----dot1Q packets ----> AR1220_R2 (vlanif interface)
Configuration R1:
interface GigabitEthernet0/0/1.1
control-vid 1000 qinq-termination
qinq termination pe-vid 10 ce-vid 100
ip address 192.168.10.1 255.255.255.0
arp broadcast enable
#
Configuration switch:
interface GigabitEthernet0/0/1
description TOWARDS_R1
port link-type trunk
port trunk allow-pass vlan 10
#
interface GigabitEthernet0/0/2
description TOWARDS_R2
port link-type dot1q-tunnel
port default vlan 10
#
Configuration R2:
interface Vlanif100
ip address 192.168.10.2 255.255.255.0
#
interface Ethernet0/0/0
portswitch
port link-type trunk
port trunk allow-pass vlan 100
#
On R2 we can see evidence of R1.
[R2]dis arp
IP ADDRESS MAC ADDRESS EXPIRE(M) TYPE INTERFACE VPN-INSTANCE VLAN/CEVLAN PVC
------------------------------------------------------------------------------
192.168.10.2 5489-989e-257d I - Vlanif100
192.168.10.1 5489-98a3-8442 20 DF0 Eth0/0/1 100/-
------------------------------------------------------------------------------
Total:2 Dynamic:1 Static:0 Interface:1
[R2]
On R1, we are not getting the arp reply (or any packets) from R2.
[R1]ping 192.168.10.2
PING 192.168.10.2: 56 data bytes, press CTRL_C to break
Request time out
Request time out
Request time out
Request time out
Request time out
--- 192.168.10.2 ping statistics ---
5 packet(s) transmitted
0 packet(s) received
100.00% packet loss
[R1]dis arp
IP ADDRESS MAC ADDRESS EXPIRE(M) TYPE INTERFACE VPN-INSTANCE
VLAN/CEVLAN PVC
------------------------------------------------------------------------------
192.168.10.1 5489-98a3-8442 I - GE0/0/1.1
------------------------------------------------------------------------------
Total:1 Dynamic:0 Static:0 Interface:1
[R1]
