Example for Configuring PBB VPLS with Multiple I-VSIs Bound to the Same B-VSI

To enable multiple CEs to communicate over a PBB VPLS network, you have to bind multiple I-VSIs to the same B-VSI.

Networking Requirements

On the shown in Figure 1, PE1, PE2, and PE3 are fully connected, and each CE is single-homed to a PE. To enable CE1, CE2, and CE3 to communicate over a PBB VPLS network, configure a B-VSI and two I-VSIs on each PE and bind the I-VSIs on each PE to the B-VSI on that PE. Different I-VSIs can be used to isolate broadcast domains.

Figure 1 Configuring PBB VPLS with multiple I-VSIs bound to the same B-VSI

Interface 1, sub-interface 1.1, sub-interface 1.2, interface 2, and interface 3 in this example represent GE 0/1/0, GE 0/1/0.1, GE 0/1/0.2, GE 0/1/8, and GE 0/1/16, respectively.

Configuration Roadmap

The configuration roadmap is as follows:

Configure an IP address and enable an IGP on each interface to ensure IP connectivity.
Configure MPLS and MPLS LDP.
Enable MPLS L2VPN and configure PBB VPLS.

Data Preparation

IP addresses and masks of interfaces on the backbone network
I-VSI and B-VSI names, VSI IDs, B-SMAC addresses, B-DMAC addresses, and I-tags

Procedure

Configure interface IP addresses for each CE and PE in accordance with Configuration Files.

Configure an IGP (OSPF in this example) on each PE.

# Configure PE1.

<PE1> system-view
[~PE1] ospf 1
[*PE1-ospf-1] area 0
[*PE1-ospf-1-area-0.0.0.0] network 1.1.1.1 0.0.0.0
[*PE1-ospf-1-area-0.0.0.0] network 10.1.1.0 0.0.0.255
[*PE1-ospf-1-area-0.0.0.0] network 10.2.1.0 0.0.0.255
[*PE1-ospf-1-area-0.0.0.0] quit
[*PE1-ospf-1] quit
[*PE1] commit

# Configure PE2.

<PE2> system-view
[~PE2] ospf 1
[*PE2-ospf-1] area 0
[*PE2-ospf-1-area-0.0.0.0] network 2.2.2.2 0.0.0.0
[*PE2-ospf-1-area-0.0.0.0] network 10.1.1.0 0.0.0.255
[*PE2-ospf-1-area-0.0.0.0] network 10.3.1.0 0.0.0.255
[*PE2-ospf-1-area-0.0.0.0] quit
[*PE2-ospf-1] quit
[*PE2] commit

# Configure PE3.

<PE3> system-view
[~PE3] ospf 1
[*PE3-ospf-1] area 0
[*PE3-ospf-1-area-0.0.0.0] network 3.3.3.3 0.0.0.0
[*PE3-ospf-1-area-0.0.0.0] network 10.2.1.0 0.0.0.255
[*PE3-ospf-1-area-0.0.0.0] network 10.3.1.0 0.0.0.255
[*PE3-ospf-1-area-0.0.0.0] quit
[*PE3-ospf-1] quit
[*PE3] commit

After completing the configurations, check OSPF route information. The following example uses the command output on PE1.

[~PE1] display ospf routing
 OSPF Process 1 with Router ID 10.1.1.1
   Routing Tables

 Routing for Network
 Destination        Cost     Type       NextHop         AdvRouter       Area           
 1.1.1.1/32         0        Direct     1.1.1.1         10.1.1.1        0.0.0.0
 2.2.2.2/32         1        Stub       10.1.1.2        10.1.1.2        0.0.0.0
 3.3.3.3/32         1        Stub       10.2.1.2        10.2.1.2        0.0.0.0
 10.1.1.0/24        1        Direct     10.1.1.1        10.1.1.1        0.0.0.0
 10.2.1.0/24        1        Direct     10.2.1.1        10.1.1.1        0.0.0.0
 10.3.1.0/24        2        Stub       10.2.1.2        10.2.1.2        0.0.0.0

 Total Nets: 6
 Intra Area: 6  Inter Area: 0  ASE: 0  NSSA: 0

Configure MPLS and MPLS LDP and establish LSPs.

# Configure PE1.

[~PE1] mpls lsr-id 1.1.1.1
[*PE1] mpls
[*PE1-mpls] quit
[*PE1] mpls ldp
[*PE1-mpls-ldp] quit
[*PE1] interface gigabitethernet 0/1/8
[*PE1-GigabitEthernet0/1/8] mpls
[*PE1-GigabitEthernet0/1/8] mpls ldp
[*PE1-GigabitEthernet0/1/8] quit
[*PE1] interface gigabitethernet 0/1/16
[*PE1-GigabitEthernet0/1/16] mpls
[*PE1-GigabitEthernet0/1/16] mpls ldp
[*PE1-GigabitEthernet0/1/16] quit
[*PE1] commit

# Configure PE2.

[~PE2] mpls lsr-id 2.2.2.2
[*PE2] mpls
[*PE2-mpls] quit
[*PE2] mpls ldp
[*PE2-mpls-ldp] quit
[*PE2] interface gigabitethernet 0/1/8
[*PE2-GigabitEthernet0/1/8] mpls
[*PE2-GigabitEthernet0/1/8] mpls ldp
[*PE2-GigabitEthernet0/1/8] quit
[*PE2] interface gigabitethernet 0/1/16
[*PE2-GigabitEthernet0/1/16] mpls
[*PE2-GigabitEthernet0/1/16] mpls ldp
[*PE2-GigabitEthernet0/1/16] quit
[*PE2] commit

# Configure PE3.

[~PE3] mpls lsr-id 3.3.3.3
[*PE3] mpls
[*PE3-mpls] quit
[*PE3] mpls ldp
[*PE3-mpls-ldp] quit
[*PE3] interface gigabitethernet 0/1/8
[*PE3-GigabitEthernet0/1/8] mpls
[*PE3-GigabitEthernet0/1/8] mpls ldp
[*PE3-GigabitEthernet0/1/8] quit
[*PE3] interface gigabitethernet 0/1/16
[*PE3-GigabitEthernet0/1/16] mpls
[*PE3-GigabitEthernet0/1/16] mpls ldp
[*PE3-GigabitEthernet0/1/16] quit
[*PE3] commit

# After completing the configurations, check LDP LSP information. The following example uses the command output on PE1.

[~PE1] display mpls ldp session
 LDP Session(s) in Public Network
 Codes: LAM(Label Advertisement Mode), SsnAge Unit(DDDD:HH:MM)
 An asterisk (*) before a session means the session is being deleted.
--------------------------------------------------------------------------
 PeerID             Status      LAM  SsnRole  SsnAge       KASent/Rcv
--------------------------------------------------------------------------
 2.2.2.2:0          Operational DU   Passive  0000:00:00   4/4
 3.3.3.3:0          Operational DU   Passive  0000:00:00   1/1
--------------------------------------------------------------------------
TOTAL: 2 Session(s) Found.

Configure PBB VPLS.

Enable MPLS L2VPN.

# Configure PE1.

[~PE1] mpls l2vpn
[*PE1-l2vpn] quit
[*PE1] commit

# Configure PE2.

[~PE2] mpls l2vpn
[*PE2-l2vpn] quit
[*PE2] commit

# Configure PE3.

[~PE3] mpls l2vpn
[*PE3-l2vpn] quit
[*PE3] commit

Configure I-VSIs.

# Configure PE1.

[~PE1] vsi ivsi1 i-vsi p2p
[*PE1-vsi-ivsi1] pwsignal ldp
[*PE1-vsi-ivsi1-ldp] vsi-id 10
[*PE1-vsi-ivsi1] pbb i-tag 100
[*PE1-vsi-ivsi1] pbb backbone-destination-mac 00e0-fc34-5678 static
[*PE1-vsi-ivsi1] quit
[*PE1] vsi ivsi2 i-vsi p2p
[*PE1-vsi-ivsi2] pwsignal ldp
[*PE1-vsi-ivsi2-ldp] vsi-id 20
[*PE1-vsi-ivsi2] pbb i-tag 101
[*PE1-vsi-ivsi2] pbb backbone-destination-mac 00e0-fc12-3456 static
[*PE1-vsi-ivsi2] quit
[*PE1] commit

# Configure PE2.

[~PE2] vsi ivsi1 i-vsi p2p
[*PE2-vsi-ivsi1] pwsignal ldp
[*PE2-vsi-ivsi1-ldp] vsi-id 10
[*PE2-vsi-ivsi1-ldp] quit
[*PE2-vsi-ivsi1] pbb i-tag 101
[*PE2-vsi-ivsi1] pbb backbone-destination-mac 00e0-fc00-1234 static
[*PE2-vsi-ivsi1] quit
[*PE2] vsi ivsi2 i-vsi p2p
[*PE2-vsi-ivsi2] pwsignal ldp
[*PE2-vsi-ivsi2-ldp] vsi-id 20
[*PE2-vsi-ivsi2-ldp] quit
[*PE2-vsi-ivsi2] pbb i-tag 102
[*PE2-vsi-ivsi2] pbb backbone-destination-mac 00e0-fc34-5678 static
[*PE2-vsi-ivsi2] quit
[*PE2] commit

# Configure PE3.

[~PE3] vsi ivsi1 i-vsi p2p
[*PE3-vsi-ivsi1] pwsignal ldp
[*PE3-vsi-ivsi1-ldp] vsi-id 10
[*PE3-vsi-ivsi1-ldp] quit
[*PE3-vsi-ivsi1] pbb i-tag 100
[*PE3-vsi-ivsi1] pbb backbone-destination-mac 00e0-fc00-1234 static
[*PE3-vsi-ivsi1] quit
[*PE3] vsi ivsi2 i-vsi p2p
[*PE3-vsi-ivsi2] pwsignal ldp
[*PE3-vsi-ivsi2-ldp] vsi-id 20
[*PE3-vsi-ivsi2-ldp] quit
[*PE3-vsi-ivsi2] pbb i-tag 102
[*PE3-vsi-ivsi2] pbb backbone-destination-mac 00e0-fc12-3456 static
[*PE3-vsi-ivsi2] quit
[*PE3] commit

Configure B-VSIs and specify VPLS peers for these B-VSIs.

# Configure PE1.

[~PE1] vsi bvsi1 b-vsi
[*PE1-vsi-bvsi1] pwsignal ldp
[*PE1-vsi-bvsi1-ldp] vsi-id 100
[*PE1-vsi-bvsi1-ldp] peer 2.2.2.2
[*PE1-vsi-bvsi1-ldp] peer 3.3.3.3
[*PE1-vsi-bvsi1-ldp] quit
[*PE1-vsi-bvsi1] pbb backbone-source-mac 00e0-fc00-1234
[*PE1-vsi-bvsi1] quit
[*PE1] commit

# Configure PE2.

[~PE2] vsi bvsi1 b-vsi
[*PE2-vsi-bvsi1] pwsignal ldp
[*PE2-vsi-bvsi1-ldp] vsi-id 100
[*PE2-vsi-bvsi1-ldp] peer 1.1.1.1
[*PE2-vsi-bvsi1-ldp] peer 3.3.3.3
[*PE2-vsi-bvsi1-ldp] quit
[*PE2-vsi-bvsi1] pbb backbone-source-mac 00e0-fc12-3456
[*PE2-vsi-bvsi1] quit
[*PE2] commit

# Configure PE3.

[~PE3] vsi bvsi1 b-vsi
[*PE3-vsi-bvsi1] pwsignal ldp
[*PE3-vsi-bvsi1-ldp] vsi-id 100
[*PE3-vsi-bvsi1-ldp] peer 1.1.1.1
[*PE3-vsi-bvsi1-ldp] peer 2.2.2.2
[*PE3-vsi-bvsi1-ldp] quit
[*PE3-vsi-bvsi1] pbb backbone-source-mac 00e0-fc34-5678
[*PE3-vsi-bvsi1] quit
[*PE3] commit

Bind I-VSIs on each PE to the B-VSI on that PE.

# Configure PE1.

[~PE1] vsi ivsi1
[*PE1-vsi-ivsi1] pbb binding b-vsi bvsi1
[*PE1-vsi-ivsi1] quit
[*PE1] vsi ivsi2
[*PE1-vsi-ivsi2] pbb binding b-vsi bvsi1
[*PE1-vsi-ivsi2] quit
[*PE1] commit

# Configure PE2.

[~PE2] vsi ivsi1
[*PE2-vsi-ivsi1] pbb binding b-vsi bvsi1
[*PE2-vsi-ivsi1] quit
[*PE2] vsi ivsi2
[*PE2-vsi-ivsi2] pbb binding b-vsi bvsi1
[*PE2-vsi-ivsi2] quit
[*PE2] commit

# Configure PE3.

[~PE3] vsi ivsi1
[*PE3-vsi-ivsi1] pbb binding b-vsi bvsi1
[*PE3-vsi-ivsi1] quit
[*PE3] vsi ivsi2
[*PE3-vsi-ivsi2] pbb binding b-vsi bvsi1
[*PE3-vsi-ivsi2] quit
[*PE3] commit

Bind an AC interface to each I-VSI.

# Configure PE1.

[~PE1] interface gigabitethernet0/1/0.1
[*PE1-GigabitEthernet0/1/0.1] vlan-type dot1q 10
[*PE1-GigabitEthernet0/1/0.1] l2 binding vsi ivsi1
[*PE1-GigabitEthernet0/1/0.1] quit
[*PE1] interface gigabitethernet0/1/0.2
[*PE1-GigabitEthernet0/1/0.2] vlan-type dot1q 20
[*PE1-GigabitEthernet0/1/0.2] l2 binding vsi ivsi2
[*PE1-GigabitEthernet0/1/0.2] quit
[*PE1] commit

# Configure PE2.

[~PE2] interface gigabitethernet0/1/0.1
[*PE2-GigabitEthernet0/1/0.1] vlan-type dot1q 20
[*PE2-GigabitEthernet0/1/0.1] l2 binding vsi ivsi1
[*PE2-GigabitEthernet0/1/0.1] quit
[*PE2] interface gigabitethernet0/1/0.2
[*PE2-GigabitEthernet0/1/0.2] vlan-type dot1q 30
[*PE2-GigabitEthernet0/1/0.2] l2 binding vsi ivsi2
[*PE2-GigabitEthernet0/1/0.2] quit
[*PE2] commit

# Configure PE3.

[~PE3] interface gigabitethernet0/1/0.1
[*PE3-GigabitEthernet0/1/0.1] vlan-type dot1q 10
[*PE3-GigabitEthernet0/1/0.1] l2 binding vsi ivsi1
[*PE3-GigabitEthernet0/1/0.1] quit
[*PE3] interface gigabitethernet0/1/0.2
[*PE3-GigabitEthernet0/1/0.2] vlan-type dot1q 30
[*PE3-GigabitEthernet0/1/0.2] l2 binding vsi ivsi2
[*PE3-GigabitEthernet0/1/0.2] quit
[*PE3] commit

# After completing the configurations, check I-VSI and B-VSI information. The following example uses the command output on PE1.

[~PE1] display vsi
Total VSI number is 3, 3 is up, 0 is down, 3 is LDP mode, 0 is BGP mode, 0 is BGPAD mode, 0 is mixed mode, 0 is unspecified mode
--------------------------------------------------------------------------
Vsi                             Mem    PW    Mac       Encap     Mtu   Vsi
Name                            Disc   Type  Learn     Type      Value State
--------------------------------------------------------------------------
bvsi1                           --     ldp   unqualify vlan      1500  up   
ivsi1                           --     ldp   unqualify vlan      1500  up   
ivsi2                           --     ldp   unqualify vlan      1500  up

Configure CEs to access PEs.

# Configure CE1.

[~CE1] interface gigabitethernet 0/1/0.1
[*CE1-GigabitEthernet0/1/0.1] vlan-type dot1q 10
[*CE1-GigabitEthernet0/1/0.1] ip address 10.10.1.1 24
[*CE1-GigabitEthernet0/1/0.1] quit
[*CE1] interface gigabitethernet 0/1/0.2
[*CE1-GigabitEthernet0/1/0.2]vlan-type dot1q 20
[*CE1-GigabitEthernet0/1/0.1] ip address 10.20.1.1 24
[*CE1-GigabitEthernet0/1/0.1] quit
[*CE1] commit

# Configure CE2.

[~CE2] interface gigabitethernet 0/1/0.1
[*CE2-GigabitEthernet0/1/0.1] vlan-type dot1q 20
[*CE2-GigabitEthernet0/1/0.1] ip address 10.20.1.2 24
[*CE2-GigabitEthernet0/1/0.1] quit
[*CE2] interface gigabitethernet 0/1/0.2
[*CE2-GigabitEthernet0/1/0.2]vlan-type dot1q 30
[*CE2-GigabitEthernet0/1/0.2] ip address 10.30.1.1 24
[*CE2-GigabitEthernet0/1/0.2] quit
[*CE2] commit

# Configure CE3.

[~CE2] interface gigabitethernet 0/1/0.1
[*CE2-GigabitEthernet0/1/0.1] vlan-type dot1q 10
[*CE2-GigabitEthernet0/1/0.1] ip address 10.10.1.2 24
[*CE2-GigabitEthernet0/1/0.1] quit
[*CE2] interface gigabitethernet 0/1/0.2
[*CE2-GigabitEthernet0/1/0.2]vlan-type dot1q 30
[*CE2-GigabitEthernet0/1/0.2] ip address 10.30.1.2 24
[*CE2-GigabitEthernet0/1/0.2] quit
[*CE2] commit

Verify the configuration.

After the configurations are complete, CE1, CE2, and CE3 can ping each other. The following uses the command output on CE1.

[~CE1] ping 10.30.1.2
PING 10.30.1.2: 56  data bytes, press CTRL_C to break
Reply from 10.30.1.2: bytes=56 Sequence=1 ttl=255 time=3 ms
Reply from 10.30.1.2: bytes=56 Sequence=2 ttl=255 time=1 ms
Reply from 10.30.1.2: bytes=56 Sequence=3 ttl=255 time=2 ms
Reply from 10.30.1.2: bytes=56 Sequence=4 ttl=255 time=1 ms
Reply from 10.30.1.2: bytes=56 Sequence=5 ttl=255 time=2 ms

  --- 10.30.1.2 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 1/1/3 ms

Configuration Files

CE1 configuration file

#
sysname CE1
#
interface GigabitEthernet0/1/0
 undo shutdown
#
interface GigabitEthernet0/1/0.1
 vlan-type dot1q 10
 ip address 10.10.1.1 255.255.255.0
#
interface GigabitEthernet0/1/0.2
 vlan-type dot1q 20
 ip address 10.20.1.1 255.255.255.0
#
return

PE1 configuration file

#
sysname PE1
#
mpls lsr-id 1.1.1.1
mpls
#
mpls l2vpn
#
vsi bvsi1 b-vsi
 pwsignal ldp
  vsi-id 100
  peer 2.2.2.2
  peer 3.3.3.3
 pbb backbone-source-mac 00e0-fc00-1234
#
mpls ldp
vsi ivsi1 i-vsi p2p
 pwsignal ldp
  vsi-id 10
 pbb i-tag 100
 pbb backbone-destination-mac 00e0-fc34-5678 static
 pbb binding b-vsi bvsi1
#
vsi ivsi2 i-vsi p2p
 pwsignal ldp
  vsi-id 20
 pbb i-tag 101
 pbb backbone-destination-mac 00e0-fc12-3456 static
 pbb binding b-vsi bvsi1
#
interface GigabitEthernet0/1/0
 undo shutdown
#
interface GigabitEthernet0/1/0.1
 vlan-type dot1q 10
 l2 binding vsi ivsi1 
#
interface GigabitEthernet0/1/0.2
 vlan-type dot1q 20
 l2 binding vsi ivsi2 
#
interface GigabitEthernet0/1/8
 undo shutdown
 ip address 10.1.1.1 255.255.255.0  
 mpls   
 mpls ldp   
#
interface GigabitEthernet0/1/16
 undo shutdown
 ip address 10.2.1.1 255.255.255.0
 mpls
 mpls ldp
#
interface LoopBack0
 ip address 1.1.1.1 255.255.255.255  
#
ospf 1 
 area 0.0.0.0   
  network 1.1.1.1 0.0.0.0
  network 10.1.1.0 0.0.0.255
  network 10.2.1.0 0.0.0.255
#
return

PE2 configuration file

#
sysname PE2
#
mpls lsr-id 2.2.2.2 
mpls   
#
mpls l2vpn 
#
vsi bvsi1 b-vsi
 pwsignal ldp
  vsi-id 100
  peer 1.1.1.1
  peer 3.3.3.3
 pbb backbone-source-mac 00e0-fc12-3456
#
vsi ivsi1 i-vsi p2p
 pwsignal ldp
  vsi-id 10
 pbb i-tag 101
 pbb backbone-destination-mac 00e0-fc00-1234 static
 pbb binding b-vsi bvsi1
#
vsi ivsi2 i-vsi p2p
 pwsignal ldp
  vsi-id 20
 pbb i-tag 102
 pbb backbone-destination-mac 00e0-fc34-5678 static
 pbb binding b-vsi bvsi1
#
mpls ldp
#
interface GigabitEthernet0/1/0
 undo shutdown
#
interface GigabitEthernet0/1/0.1
 vlan-type dot1q 10
 l2 binding vsi ivsi1
#
interface GigabitEthernet0/1/0.2
 vlan-type dot1q 20
 l2 binding vsi ivsi2
#
interface GigabitEthernet0/1/8
 undo shutdown
 ip address 10.1.1.2 255.255.255.0
 mpls   
 mpls ldp   
#
interface GigabitEthernet0/1/16
 undo shutdown
 ip address 10.3.1.1 255.255.255.0
 mpls
 mpls ldp
#
interface LoopBack0
 ip address 2.2.2.2 255.255.255.255
#
ospf 1 
 area 0.0.0.0
  network 2.2.2.2 0.0.0.0
  network 10.1.1.0 0.0.0.255
  network 10.2.1.0 0.0.0.255 
#
return

PE3 configuration file

#
sysname PE3
#
mpls lsr-id 3.3.3.3
mpls
#
mpls l2vpn 
#
vsi bvsi1 b-vsi
 pwsignal ldp
  vsi-id 100
  peer 1.1.1.1
  peer 2.2.2.2
 pbb backbone-source-mac 00e0-fc34-5678
#
vsi ivsi1 i-vsi p2p
 pwsignal ldp
  vsi-id 10
 pbb i-tag 100
 pbb backbone-destination-mac 00e0-fc00-1234 static
 pbb binding b-vsi bvsi1
#
vsi ivsi2 i-vsi p2p
 pwsignal ldp
  vsi-id 20
 pbb i-tag 102
 pbb backbone-destination-mac 00e0-fc12-3456 static
 pbb binding b-vsi bvsi1
#
mpls ldp
#
interface GigabitEthernet0/1/0
 undo shutdown
#
interface GigabitEthernet0/1/0.1
 vlan-type dot1q 10
 l2 binding vsi ivsi1
#
interface GigabitEthernet0/1/0.2
 vlan-type dot1q 20
 l2 binding vsi ivsi2
#
interface GigabitEthernet0/1/8
 undo shutdown
 ip address 10.1.1.2 255.255.255.0
 mpls
 mpls ldp
#
interface GigabitEthernet0/1/16
 undo shutdown
 ip address 10.3.1.2 255.255.255.0
 mpls
 mpls ldp
#
interface LoopBack0
 ip address 3.3.3.3 255.255.255.255
#
ospf 1 
 area 0.0.0.0   
  network 3.3.3.3 0.0.0.0
  network 10.2.1.0 0.0.0.255
  network 10.3.1.0 0.0.0.255
#
return

CE2 configuration file

#
sysname CE2
#
interface GigabitEthernet0/1/0
 undo shutdown
#
interface GigabitEthernet0/1/0.1
 vlan-type dot1q 20
 ip address 10.20.1.1 255.255.255.0
#
interface GigabitEthernet0/1/0.2
 vlan-type dot1q 30
 ip address 10.30.1.1 255.255.255.0
#
return

CE3 configuration file

#
 sysname CE3
#
interface GigabitEthernet0/1/0
 undo shutdown
#
interface GigabitEthernet0/1/0.1
 vlan-type dot1q 10
 ip address 10.10.1.2 255.255.255.0
#
interface GigabitEthernet0/1/0.2
 vlan-type dot1q 30
 ip address 10.30.1.2 255.255.255.0
#
return