Example for Configuring User-Side Multicast for IPoE Access Users

This section provides an example for configuring user-side multicast service for Internet Protocol over Ethernet (IPoE) access users.

Networking Requirements

On the network shown in Figure 1, users (with PC1 and PC2) are IPoE access users, and they want to join multicast programs. Configure user-side multicast to implement user-based on-demand multicast data forwarding.

Figure 1 Configuring user-side multicast for IPoE access users

Interface 1 and interface 2 in this example stand for GE 0/1/0 and GE 0/1/1.1, respectively.

Configuration Roadmap

The configuration roadmap is as follows:

Configure an IPv4 address pool.
Configure Authentication, Authorization and Accounting (AAA) schemes.
Configure a user domain.
Configure the IPoE access mode:
1. Configure an authentication scheme.
2. Bind a sub-interface to a VLAN.
3. Configure a BAS interface and specify a user access type for the interface. (The interface can be a main, a common sub-interface, or a QinQ sub-interface. A common sub-interface is used in the example.)
Enable session-based multicast traffic replication on a BAS interface.
Configure basic multicast functions:
1. Enable multicast routing.
2. Enable Protocol Independent Multicast-Sparse Mode (PIM-SM) on all BRAS interfaces.
3. Enable IGMP on the BRAS interface connected to users.

Data Preparation

IPv4 address pool
Authentication and accounting schemes
User domain
BAS interface parameters

Procedure

Configure an IPv4 address pool.

<HUAWEI> system-view
[HUAWEI] sysname BRAS
[*HUAWEI] commit
[~BRAS] ip pool huawei bas local
[*BRAS-ip-pool-ipv4] gateway 172.16.0.1 255.255.0.0
[*BRAS-ip-pool-ipv4] section 1 172.16.0.1 172.16.255.255
[*BRAS-ip-pool-ipv4] quit
[*BRAS] commit

Configure AAA schemes.

# Configure an authentication scheme.

[~BRAS] aaa
[*BRAS-aaa] authentication-scheme none
[*BRAS-aaa-authen-none] authentication-mode none
[*BRAS-aaa-authen-none] quit
[*BRAS-aaa] commit

# Configure an accounting scheme.

[~BRAS-aaa] accounting-scheme none
[*BRAS-aaa-accounting-none] accounting-mode none
[*BRAS-aaa-accounting-none] quit
[*BRAS-aaa] quit
[*BRAS] commit

Configure a domain.

[~BRAS] aaa
[*BRAS-aaa] domain ipv4
[*BRAS-aaa-domain-ipv4] authentication-scheme none
[*BRAS-aaa-domain-ipv4] accounting-scheme none
[*BRAS-aaa-domain-ipv4] ip-pool ipv4
[*BRAS-aaa-domain-ipv4] quit
[*BRAS-aaa] quit
[*BRAS] commit

Bind a sub-interface to a VLAN.

[~BRAS] interface gigabitethernet 0/1/1.1
[*BRAS-GigabitEthernet0/1/1.1] user-vlan 2
[*BRAS-GigabitEthernet0/1/1.1-vlan-2-2] quit
[*BRAS-GigabitEthernet0/1/1.1] commit

Configure a BAS interface, specify a user access type for the interface, and configure an authentication scheme.

[~BRAS-GigabitEthernet0/1/1.1] bas
[*BRAS-GigabitEthernet0/1/1.1-bas] access-type layer2-subscriber default-domain authentication ipv4
[*BRAS-GigabitEthernet0/1/1.1-bas] authentication-method bind
[*BRAS-GigabitEthernet0/1/1.1-bas] quit
[*BRAS-GigabitEthernet0/1/1.1] commit

# Run the display access-user domain ipv4 command to display online user information. The command output shows that users with ID 352 and 353 accessed the Internet through IPoE.

[~BRAS] display  access-user domain ipv4
  ------------------------------------------------------------------------------
  UserID  Username                Interface      IP address       MAC
          Vlan          IPv6 address             Access type
  ------------------------------------------------------------------------------
  352     BRAS-01008000100000...  GE0/1/1.1      172.16.1.2          00-e0-fc-12-34-561
          1/-           -                        IPOE
  353     BRAS-01008000300002...  GE0/1/1.1      172.16.1.3          00-e0-fc-22-34-56
          3/2           -                        IPOE
  ------------------------------------------------------------------------------
  Normal users                       : 2
  RUI Local users                    : 0
  RUI Remote users                   : 0
  Total users                        : 2

Enable session-based multicast traffic replication on a BAS interface.

[~BRAS-GigabitEthernet0/1/1.1] bas
[*BRAS-GigabitEthernet0/1/1.1-bas] multicast copy by-session
[*BRAS-GigabitEthernet0/1/1.1-bas] quit
[*BRAS-GigabitEthernet0/1/1.1] quit
[*BRAS] commit

Configure basic multicast functions.

[~BRAS] multicast routing-enable
[*BRAS] interface gigabitethernet 0/1/0
[*BRAS-GigabitEthernet0/1/0] undo shutdown
[*BRAS-GigabitEthernet0/1/0] ip address 10.1.1.1 255.255.255.0
[*BRAS-GigabitEthernet0/1/0] pim sm
[*BRAS-GigabitEthernet0/1/0] quit
[*BRAS] commit
[~BRAS] interface gigabitethernet 0/1/1.1
[*BRAS-GigabitEthernet0/1/1.1] pim sm
[*BRAS-GigabitEthernet0/1/1.1] igmp enable
[*BRAS-GigabitEthernet0/1/1.1] quit
[*BRAS] commit

Verify the configuration.

# Run the display multicast group-ip command to display information about users of a specified multicast group. The command output shows that users with ID 352 and 353 joined multicast programs whose group address is 225.0.0.1.

[~BRAS] display multicast group-ip 225.0.0.1 out-interface GigabitEthernet 0/1/1.1
  User ID    User IP                     User type    Interface

  352        172.16.1.2                     Local        GigabitEthernet0/1/1.1
  353        172.16.1.3                     Local        GigabitEthernet0/1/1.1

  Local user number :2
  Remote user number:0
  Total user number :2

# Run the display multicast user-id command to check the multicast programs that a specified user joined on a BAS interface. The following uses the user whose ID is 353 as an example:

[~BRAS] display multicast user-id 353
  User information:
  User ID             :353
  User IPv4 address   :172.16.1.3
  Gateway IPv4 address:172.16.0.1
  BRAS interface      :GigabitEthernet0/1/1.1
  User MAC-address    :00-e0-fc-22-34-56
  MAX program list    :4

  User order program:
  Group IP           Source IP
  225.0.0.1          0.0.0.0

  Total:1

# Run the display pim routing-table command to display PIM routing entries.

[~BRAS] display pim routing-table
 VPN-Instance: public net
 Total 1 (*, G) entry; 1 (S, G) entry

 (*, 225.0.0.1)
     RP: NULL
     Protocol: pim-sm, Flag: WC NIIF
     UpTime: 01:37:51
     Upstream interface: NULL, Refresh time: 01:37:51
         Upstream neighbor: NULL
         RPF prime neighbor: NULL
     Downstream interface(s) information:
     Total number of downstreams: 1
        1: GigabitEthernet0/1/1(bas)
             Protocol: igmp, UpTime: 01:37:51, Expires: -

 (10.1.1.100, 225.0.0.1)
     RP: NULL
     Protocol: pim-sm, Flag: SPT LOC ACT
     UpTime: 04:34:52
     Upstream interface: GigabitEthernet0/1/0, Refresh time: 04:34:52
         Upstream neighbor: NULL
         RPF prime neighbor: NULL
     Downstream interface(s) information:
     Total number of downstreams: 1
        1: GigabitEthernet0/1/1(bas)
             Protocol: pim-sm, UpTime: 01:37:51, Expires: -

Configuration Files

#
sysname BRAS
#
multicast routing-enable
#
ip pool ipv4 huawei local
 gateway 172.16.0.1 255.255.0.0
 section 1 172.16.0.1 172.16.255.255
#
aaa
 #
 authentication-scheme none
  authentication-mode none
 #
 accounting-scheme none
  accounting-mode none
 #
 domain ipv4
  authentication-scheme none
  accounting-scheme none
  ip-pool ipv4
#
interface GigabitEthernet0/1/0
 undo shutdown
 ip address 10.1.1.1 255.255.255.0
 pim sm
#
interface GigabitEthernet0/1/1.1
 user-vlan 2 
 pim sm
 igmp enable
 bas
 #
  access-type layer2-subscriber default-domain authentication ipv4
  authentication-method bind
  multicast copy by-session
#
return