Networking Requirements

Figure 1 shows the CE is connected with the PE through a POS interface. The packets are encapsulated in PPP over the link layer.

A local connection is created between CE1 and CE2.

Figure 1 Networking diagram of the local CCC connection

Procedure

1. Configure CE.
   # Configure CE1.

   <HUAWEI> system-view

   [HUAWEI] sysname CE1

   [CE1] interface pos 1/0/0

   [CE1-Pos1/0/0] ip address 100.1.1.1 24

   [CE1-Pos1/0/0] undo shutdown

   [CE1-Pos1/0/0] quit

   # Configure CE2.

   <HUAWEI> system-view

   [HUAWEI] sysname CE2

   [CE2] interface pos 1/0/0

   [CE2-Pos1/0/0] ip address 100.1.1.2 24

   [CE2-Pos1/0/0] undo shutdown

   [CE2-Pos1/0/0] quit
2. Configure PE.
   # Configure LSR IDs and enable MPLS and MPLS L2VPN.

   <HUAWEI> system-view

   [HUAWEI] sysname PE

   [PE] interface loopback 1

   [PE-LoopBack1] ip address 1.1.1.9 32

   [PE-LoopBack1] quit

   [PE] mpls lsr-id 1.1.1.9

   [PE] mpls

   [PE-mpls] quit

   [PE] mpls l2vpn

   [PE-l2vpn] quit

   [PE] interface pos 1/0/0

   [PE-Pos1/0/0] undo shutdown

   [PE-Pos1/0/0] quit

   [PE] interface pos 2/0/0

   [PE-Pos2/0/0] undo shutdown

   [PE-Pos2/0/0] quit

   # Create the local connection from CE1 to CE2.

   [PE] ccc ce1-ce2 interface pos 1/0/0 out-interface pos 2/0/0
3. Verify the configuration.
   After the configuration is complete, run the display vll ccc command to view information about the CCC connection on the PE. You can find that a local CCC connection is set up on the PE, and the connection status is Up.

   <PE> display vll ccc

   total  ccc vc : 1

   local  ccc vc : 1,  1 up

   remote ccc vc : 0,  0 up

   name: ce1-ce2, type: local, state: up,

   intf1: Pos1/0/0 (up),   intf2: Pos2/0/0 (up)

   VC last up time : 2008-07-24 12:31:31
   VC total up time: 0 days, 2 hours, 12 minutes, 51 seconds
   

   Run the display l2vpn ccc-interface vc-type ccc command, and you can find that the VC type is CCC and the status is Up.

   <PE> display l2vpn ccc-interface vc-type all

   Total ccc-interface of CCC : 2

   up (2), down (0)

   Interface                     Encap Type               State     VC Type

   Pos1/0/0                       ppp                      up        ccc

   Pos2/0/0                       ppp                      up        ccc

   Run the display ip routing-table command on the CEs to check the interface routes learned on CE1 and CE2 from each other. CE1 and CE2 can successfully ping each other.
   Take CE1 as an example:

   <CE1> display ip routing-table

   Route Flags: R - relay, D - download to fib

   ------------------------------------------------------------------------------

   Routing Tables: Public

            Destinations : 5        Routes : 5

   Destination/Mask    Proto  Pre  Cost     Flags NextHop         Interface

         100.1.1.0/24  Direct 0    0           D  100.1.1.1       Pos1/0/0

         100.1.1.1/32  Direct 0    0           D  127.0.0.1       InLoopBack0

         100.1.1.2/32  Direct 0    0           D  100.1.1.2       Pos1/0/0

         127.0.0.0/8   Direct 0    0           D  127.0.0.1       InLoopBack0

         127.0.0.1/32  Direct 0    0           D  127.0.0.1       InLoopBack0

   <CE1> ping 100.1.1.2

     PING 100.1.1.2: 56  data bytes, press CTRL_C to break

       Reply from 100.1.1.2: bytes=56 Sequence=1 ttl=255 time=180 ms

       Reply from 100.1.1.2: bytes=56 Sequence=2 ttl=255 time=60 ms

       Reply from 100.1.1.2: bytes=56 Sequence=3 ttl=255 time=10 ms

       Reply from 100.1.1.2: bytes=56 Sequence=4 ttl=255 time=70 ms

       Reply from 100.1.1.2: bytes=56 Sequence=5 ttl=255 time=60 ms

     --- 100.1.1.2 ping statistics ---

       5 packet(s) transmitted

       5 packet(s) received

       0.00% packet loss

       round-trip min/avg/max = 10/76/180 ms