H3C S12500 Series Manual de usuario

H3C S12500 Multicast VPN Configuration

Examples

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without prior written consent of Hangzhou H3C Technologies Co., Ltd.

The information in this document is subject to change without notice.

i

Contents

Introduction··································································································································································· 1

Prerequisites·································································································································································· 1

Example: Configuring intra-AS MD VPN ··················································································································· 1

Network requirements ······················································································································································1

Requirements analysis·······················································································································································2

Software version used ······················································································································································2

Configuration restrictions and guidelines·······················································································································2

Configuration procedures ················································································································································2

Verifying the configuration···············································································································································5

Configuration files·····························································································································································6

Example: Configuring inter-AS option A MD VPN···································································································· 9

Network requirements ······················································································································································9

Requirements analysis···················································································································································· 10

Software version used ··················································································································································· 10

Configuration restrictions and guidelines···················································································································· 10

Configuration procedures ············································································································································· 10

Verifying the configuration············································································································································ 15

Configuration files·························································································································································· 15

Example: Configuring inter-AS option C MD VPN··································································································19

Network requirements ··················································································································································· 19

Requirements analysis···················································································································································· 20

Software version used ··················································································································································· 21

Configuration restrictions and guidelines···················································································································· 21

Configuration procedures ············································································································································· 21

Verifying the configuration············································································································································ 25

Configuration files·························································································································································· 26

Related documentation ··············································································································································29

1

Introduction

This document provides multicast VPN configuration examples.

Prerequisites

The configuration examples in this document were created and verified in a lab environment, and all the

devices were started with the factory default configuration. When you are working on a live network,

make sure you understand the potential impact of every command on your network.

This document assumes that you have basic knowledge of multicast VPN.

Example: Configuring intra-AS MD VPN

Network requirements

As shown in Figure 1:

•Customer A has two branches that connect to the MPLS L3VPN network of a service provider.

•PIM-SM runs within the two branches.

•The multicast source and the receiver host are in different branches.

Configure intra-AS MD VPN so that the receiver host can receive the multicast data from the source.

Figure 1 Network diagram

Table 1 Interface and IP address assignment

Device Interface IP address Device Interface IP address

S 1 — 10.11.3.2/24 PE 2 VLAN-interface 3 192.168.2.2/24

PE 1 VLAN-interface 2 192.168.1.2/24 PE 2 VLAN-interface 12 10.11.2.1/24

PE 1 VLAN-interface 11 10.11.1.1/24 PE 2 Loopback 1 1.1.1.2/32

2

Device Interface IP address Device Interface IP address

PE 1 Loopback 1 1.1.1.1/32 CE a1 VLAN-interface 10 10.11.3.1/24

P VLAN-interface 2 192.168.1.1/24 CE a1 VLAN-interface 11 10.11.1.2/24

P VLAN-interface 3 192.168.2.1/24 CE a1 Loopback 0 2.2.2.2/32

P Loopback 1 3.3.3.3/32 CE a2 VLAN-interface 20 10.11.4.1/24

R 1 — 10.11.4.2/24 CE a2 VLAN-interface 12 10.11.2.2/24

Requirements analysis

To meet the network requirement, you must run PIM on the devices of the public network, and configure

MD VPN on each PE. In addition, make sure the PIM protocol on the public network is independent

from the PIM protocol for the VPN instance.

Software version used

This configuration example was created and verified on S12500-CMW710-R7328P02.

Configuration restrictions and guidelines

When you configure the intra-AS MD VPN, follow these restrictions and guidelines:

•The MTI interfaces take effect only after the default-group and the MD source interface are

specified and the MD source interface obtains the public IP address.

•You must enable the same PIM mode on all interfaces that belong to the same VPN instance

(including the interfaces associated with the VPN instance on the PEs).

•You must specify the same default-group for the same VPN instance on different PEs.

•The IP address of the MD source interface must be the same as the source address used for

establishing BGP peer relationship. Otherwise, correct routing information cannot be obtained.

•By default, Ethernet interfaces, VLAN interfaces, and aggregate interfaces are shut down. You

must use the undo shutdown command to bring them up. This example assumes that all these

interfaces are already up.

Configuration procedures

1. Assign an IP address and subnet mask to each interface on CE a1 according to Table 1.

<CEa1> system-view

[CEa1] interface vlan-interface 10

[CEa1-Vlan-interface10] ip address 10.11.3.1 24

[CEa1-Vlan-interface10] quit

[CEa1] interface loopback 0

[CEa1-LoopBack0] ip address 2.2.2.2 32

[CEa1-LoopBack0] quit

[CEa1] interface vlan-interface 11

3

[CEa1-Vlan-interface11] ip address 10.11.1.2 24

[CEa1-Vlan-interface11] quit

# Configure PE 1, P, PE 2, and CE a2 in the same way CE a1 is configured. (Details not shown.)

2. Configure a unicast routing protocol and basic MPLS VPN on all devices so that all devices are

interoperable at the network layer. (Details not shown.)

For more information about configuring basic MPLS VPN, see MPLS Configuration Guide.

3. Enable IP multicast routing on the public network, and enable PIM-SM on the public network

interfaces (including Loopback interfaces):

# On PE 1, enable IP multicast routing, and enable PIM-SM on the public network interfaces.

[PE1] multicast routing

[PE1-mrib] quit

[PE1] interface vlan-interface 2

[PE1-Vlan-interface2] pim sm

[PE1-Vlan-interface2] quit

[PE1] interface loopback 1

[PE1-LoopBack1] pim sm

[PE1-LoopBack1] quit

# On P, enable IP multicast routing, and enable PIM-SM on the public network interfaces.

[P] multicast routing

[P-mrib] quit

[P] interface vlan-interface 2

[P-Vlan-interface2] pim sm

[P-Vlan-interface2] quit

[P] interface vlan-interface 3

[P-Vlan-interface3] pim sm

[P-Vlan-interface3] quit

[P] interface loopback 1

[P-LoopBack1] pim sm

[P-LoopBack1] quit

# Configure Loopback 1 as a C-BSR and a C-RP.

[P] pim

[P-pim] c-bsr 3.3.3.3

[P-pim] c-rp 3.3.3.3

[P-pim] quit

# On PE 2, enable IP multicast routing, and enable PIM-SM on the public network interfaces.

[PE2] multicast routing

[PE2-mrib] quit

[PE2] interface vlan-interface 3

[PE2-Vlan-interface3] pim sm

[PE2-Vlan-interface3] quit

[PE2] interface loopback 1

[PE2-LoopBack1] pim sm

[PE2-LoopBack1] quit

4. Enable IP multicast routing for the VPN instance, enable PIM-SM on the private network interfaces,

and enable IGMP on interfaces that have receiver hosts attached:

# On CE a1, enable IP multicast routing, and enable PIM-SM on each interface.

4

[CEa1] multicast routing

[CEa1-mrib] quit

[CEa1] interface vlan-interface 10

[CEa1-Vlan-interface10] pim sm

[CEa1-Vlan-interface10] quit

[CEa1] interface vlan-interface 11

[CEa1-Vlan-interface11] pim sm

[CEa1-Vlan-interface11] quit

[CEa1] interface loopback 0

[CEa1-LoopBack0] pim sm

[CEa1-LoopBack0] quit

# Configure Loopback 0 as a C-BSR and a C-RP.

[CEa1] pim

[CEa1-pim] c-bsr 2.2.2.2

[CEa1-pim] c-rp 2.2.2.2

[CEa1-pim] quit

# On CE a2, enable IP multicast routing, enable PIM-SM on VLAN-interface 12, and enable

IGMP on the receiver-side interface VLAN-interface 20.

[CEa2] multicast routing

[CEa2-mrib] quit

[CEa2] interface vlan-interface 12

[CEa2-Vlan-interface12] pim sm

[CEa2-Vlan-interface12] quit

[CEa2] interface vlan-interface 20

[CEa2-Vlan-interface20] igmp enable

[CEa2-Vlan-interface20] quit

# On PE 1, create VPN instance customerA.

[PE1] ip vpn-instance customerA

[PE1-vpn-instance-customerA] route-distinguisher 100:1

[PE1-vpn-instance-customerA] vpn-target 111:1

[PE1-vpn-instance-customerA] quit

# Associate VLAN-interface 11 with VPN instance customerA.

[PE1] interface vlan-interface 11

[PE1-Vlan-interface11] ip binding vpn-instance customerA

[PE1-Vlan-interface11] quit

# Enable IP multicast routing for VPN instance customerA.

[PE1] multicast routing vpn-instance customerA

[PE1-mrib-customerA] quit

# Enable PIM-SM on VLAN-interface 11.

[PE1] interface vlan-interface 11

[PE1-Vlan-interface11] pim sm

[PE1-Vlan-interface11] quit

# On PE 2, create VPN instance customerA.

[PE2] ip vpn-instance customerA

[PE2-vpn-instance-customerA] route-distinguisher 100:1

[PE2-vpn-instance-customerA] vpn-target 111:1

[PE2-vpn-instance-customerA] quit

5

# Associate VLAN-interface 12 with VPN instance customerA.

[PE2] interface vlan-interface 12

[PE2-Vlan-interface12] ip binding vpn-instance customerA

[PE2-Vlan-interface12] quit

# Enable IP multicast routing for VPN instance customerA.

[PE2] multicast routing vpn-instance customerA

[PE2-mrib-customerA] quit

# Enable PIM-SM on VLAN-interface 12.

[PE2] interface vlan-interface 12

[PE2-Vlan-interface12] pim sm

[PE2-Vlan-interface12] quit

5. Configure the MD for the VPN instance:

# On PE 1, create an MD for VPN instance customerA, specify the default-group, MD source

interface, and data-group range.

[PE1] multicast-domain vpn-instance customerA

[PE1-md-customerA] default-group 239.1.1.1

[PE1-md-customerA] source loopback 1

[PE1-md-customerA] data-group 225.2.2.0 28

[PE1-md-customerA] quit

# On PE 2, create an MD for VPN instance customerA, and specify the default-group, MD source

interface, and data-group range.

[PE2] multicast-domain vpn-instance customerA

[PE2-md-customerA] default-group 239.1.1.1

[PE2-md-customerA] source loopback 1

[PE2-md-customerA] data-group 225.2.2.0 28

[PE2-md-customerA] quit

Verifying the configuration

# Verify the establishment of the default-MDT for the public network on PEs and P. The following

example shows PIM routing table for the public network on P.

[P]display pim routing-table

Total 1 (*, G) entry; 2 (S, G) entry

(*, 239.1.1.1)

RP: 3.3.3.3 (local)

Protocol: pim-sm, Flag: SPT LOC ACT

UpTime: 02:54:43

Upstream interface: Register

Upstream neighbor: NULL

RPF prime neighbor: NULL

Downstream interface(s) information:

Total number of downstreams: 2

1: Vlan-interface2

Protocol: pim-sm, UpTime: 02:54:43, Expires: -

2: Vlan-interface3

Protocol: pim-sm, UpTime: 02:33:57, Expires: -

6

(1.1.1.1, 239.1.1.1)

RP: 3.3.3.3 (local)

Protocol: pim-sm, Flag: SPT LOC ACT

UpTime: 01:57:13

Upstream interface: Vlan-interface2

Upstream neighbor: 192.168.1.2

RPF prime neighbor: 192.168.1.2

Downstream interface(s) information: None

(1.1.1.2, 239.1.1.1)

RP: 3.3.3.3 (local)

Protocol: pim-sm, Flag: SPT LOC ACT

UpTime: 01:57:13

Upstream interface: Vlan-interface3

Upstream neighbor: 192.168.2.2

RPF prime neighbor: 192.168.2.2

Downstream interface(s) information: None

The output shows that an RPT for (*, 239.1.1.1), an SPT for (1.1.1.1, 239.1.1.1), and an SPT for (1.1.1.2,

239.1.1.1) have been established on the public network. The RPT and SPTs constitute the default-MDT for

the public network.

Configuration files

•PE 1:

#

ip vpn-instance customerA

route-distinguisher 100:1

vpn-target 111:1 import-extcommunity

vpn-target 111:1 export-extcommunity

#

vlan 2

#

vlan 11

#

interface LoopBack1

ip address 1.1.1.1 255.255.255.255

pim sm

#

interface Vlan-interface2

ip address 192.168.1.2 255.255.255.0

pim sm

#

interface Vlan-interface11

ip binding vpn-instance customerA

ip address 10.11.1.1 255.255.255.0

pim sm

7

#

multicast routing

#

multicast routing vpn-instance customerA

#

multicast-domain vpn-instance customerA

source LoopBack1

default-group 239.1.1.1

data-group 225.1.1.0 255.255.255.240

#

•PE 2:

#

ip vpn-instance customerA

route-distinguisher 100:1

vpn-target 111:1 import-extcommunity

vpn-target 111:1 export-extcommunity

#

vlan 3

#

vlan 12

#

interface LoopBack1

ip address 1.1.1.2 255.255.255.255

pim sm

#

interface Vlan-interface3

ip address 192.168.2.2 255.255.255.0

pim sm

#

interface Vlan-interface12

ip binding vpn-instance customerA

ip address 10.11.2.1 255.255.255.0

pim sm

#

multicast routing

#

multicast routing vpn-instance customerA

#

multicast-domain vpn-instance customerA

source LoopBack1

default-group 239.1.1.1

data-group 225.1.1.0 255.255.255.240

#

•P:

#

vlan 2 to 3

#

interface LoopBack1

8

ip address 3.3.3.3 255.255.255.255

pim sm

#

interface Vlan-interface2

ip address 192.168.1.1 255.255.255.0

pim sm

#

interface Vlan-interface3

ip address 192.168.2.1 255.255.255.0

pim sm

#

multicast routing

#

pim

c-bsr 3.3.3.3

c-rp 3.3.3.3

#

•CE a1:

#

vlan 10 to 11

#

interface LoopBack0

ip address 2.2.2.2 255.255.255.255

pim sm

#

interface Vlan-interface10

ip address 10.11.3.1 255.255.255.0

pim sm

#

interface Vlan-interface11

ip address 10.11.1.2 255.255.255.0

pim sm

#

multicast routing

#

pim

c-bsr 2.2.2.2

c-rp 2.2.2.2

#

•CE a2:

#

vlan 12

#

vlan 20

#

interface Vlan-interface12

ip address 10.11.2.2 255.255.255.0

pim sm

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