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 BIDIR-PIM.

Example: Configuring BIDIR-PIM

Network configuration

As shown in Figure 1:

· Switch A, Switch B, and Switch C run OSPF.

· Source 1 and Source 2 send multicast data to multicast group 225.1.1.1.

· Host A and Host B are member hosts of multicast group 225.1.1.1.

Configure BIDIR-PIM on the switches to implement multicast forwarding.

Figure 1 Network diagram

Table 1 Interface and IP address assignment

Device	Interface	IP address	Device	Interface	IP address
Switch A	Vlan-int100	10.10.1.1/24	Switch C	Vlan-int102	10.102.1.1/24
Switch A	Vlan-int12	10.12.1.1/24	Switch C	Vlan-int13	10.13.1.3/24
Switch A	Vlan-int13	10.13.1.1/24	Switch C	Vlan-int23	10.23.1.3/24
Switch B	Vlan-int101	10.101.1.1/24	Switch C	Vlan-int33	10.33.1.3/24
Switch B	Vlan-int12	10.12.1.2/24	Source 1	—	10.10.1.2/24
Switch B	Vlan-int23	10.23.1.2/24	Source 2	—	10.33.1.4/24

Analysis

To meet the network requirements, perform the following tasks:

· To establish the bidirectional RPT, configure VLAN-interface 12 on Switch A as a C-RP.

· To use the BSR mechanism to dynamically elect the RP, configure VLAN-interface 12 on Switch A as a C-BSR.

· To avoid multicast forwarding interruption when the RP fails, specify the unused IP address 10.13.1.4/24 as the static RP. In this way, the link on the subnet 10.13.1.0/24 becomes the RPL. Switch A and Switch C on the link function as the RPs.

Applicable hardware and software versions

The following matrix shows the hardware and software versions to which this configuration example is applicable:

Hardware	Software version
S6520XE-HI switch series	Supported in Release 11xx
S5560X-EI switch series	Not supported
S5500V2-EI switch series	Not supported
MS4520V2-30F switch	Not supported
S5560S-EI switch series S5560S-SI switch series	Not supported
S5130S-HI switch series S5130S-EI switch series S5130S-SI switch series S5130S-LI switch series	Not supported
S5120V2-SI switch series S5120V2-LI switch series	Not supported
S3100V3-EI switch series S3100V3-SI switch series	Not supported
S5110V2 switch series	Not supported
S5110V2-SI switch series	Not supported
S5000V3-EI switch series	Not supported
S5000E-X switch series	Not supported
WAS6000 switch series	Not supported
E128C switch E152C switch E500C switch series E500D switch series	Not supported
MS4520V2 switch series (except the MS4520V2-30F switch)	Not supported
MS4320V2 switch series MS4300V2 switch series MS4320 switch series MS4200 switch series	Not supported
WS5850-WiNet switch series	Not supported
WS5820-WiNet switch series WS5810-WiNet switch series	Not supported

Restrictions and guidelines

When you configure BIDIR-PIM, follow these restrictions and guidelines:

· Enable the same PIM mode on the interfaces that belong to the same VPN instance on each switch.

· Configure the same static RP on all the switches in the BIDIR-PIM domain.

· Enable PIM-SM for all interfaces on the switches in the BIDIR-PIM domain.

· Enable IGMP for the interfaces that connect to the stub networks on all the switches in the BIDIR-PIM domain.

Procedures

Configure Switch A

1. Enable IP multicast routing.

<SwitchA> system-view

System View: return to User View with Ctrl+Z.

[SwitchA] multicast routing

[SwitchA-mrib] quit

2. Configure each interface and enable PIM-SM.

# Create VLAN 100, and assign Ten-GigabitEthernet 1/0/1 to this VLAN.

[SwitchA] vlan 100

[SwitchA-vlan100] port ten-gigabitethernet 1/0/1

[SwitchA-vlan100] quit

# Assign an IP address to VLAN-interface 100, and enable PIM-SM on the interface.

[SwitchA] interface vlan-interface 100

[SwitchA-Vlan-interface100] ip address 10.10.1.1 24

[SwitchA-Vlan-interface100] pim sm

[SwitchA-Vlan-interface100] quit

# Create VLAN 12, and assign Ten-GigabitEthernet 1/0/2 to the VLAN.

[SwitchA] vlan 12

[SwitchA-vlan12] port ten-gigabitethernet 1/0/2

[SwitchA-vlan12] quit

# Assign an IP address to VLAN-interface 12, enable PIM-SM on the interface.

[SwitchA-vlan12] interface vlan-interface 12

[SwitchA-Vlan-interface12] ip address 10.12.1.1 24

[SwitchA-Vlan-interface12] pim sm

[SwitchA-Vlan-interface12] quit

# Create VLAN 13, and assign Ten-GigabitEthernet 1/0/3 to the VLAN.

[SwitchA] vlan 13

[SwitchA-vlan13] port ten-gigabitethernet 1/0/3

[SwitchA-vlan13] quit

# Assign an IP address to VLAN-interface 13, enable PIM-SM on the interface.

[SwitchA] interface vlan-interface 13

[SwitchA-Vlan-interface13] ip address 10.13.1.1 24

[SwitchA-Vlan-interface13] pim sm

[SwitchA-Vlan-interface13] quit

3. Configure a C-RP, a C-BSR, and the static RP.

# Configure VLAN-interface 12 as a C-BSR and a C-RP.

[SwitchA] pim

[SwitchA-pim] c-bsr 10.12.1.1

[SwitchA-pim] c-rp 10.12.1.1 bidir

# Specify the unused IP address 10.13.1.4 as a static RP.

[SwitchA-pim] static-rp 10.13.1.4 bidir

4. Enable BIDIR-PIM.

[SwitchA-pim] bidir-pim enable

[SwitchA-pim] quit

5. Configure OSPF.

[SwitchA] ospf 1

[SwitchA-ospf-1] import-route direct

[SwitchA-ospf-1] area 0

[SwitchA-ospf-1-area-0.0.0.0] network 10.0.0.0 0.255.255.255

[SwitchA-ospf-1-area-0.0.0.0] quit

[SwitchA-ospf-1] quit

Configure Switch B

1. Enable IP multicast routing.

<SwitchB> system-view

System View: return to User View with Ctrl+Z.

[SwitchB] multicast routing

[SwitchB-mrib] quit

2. Configure each interface and enable PIM-SM.

# Create VLAN 12, and assign Ten-GigabitEthernet 1/0/2 to this VLAN.

[SwitchB] vlan 12

[SwitchB-vlan12] port ten-gigabitethernet 1/0/2

[SwitchB-vlan12] quit

# Assign an IP address to VLAN-interface 12, enable PIM-SM on the interface.

[SwitchB] interface vlan-interface 12

[SwitchB-Vlan-interface12] ip address 10.12.1.2 24

[SwitchB-Vlan-interface12] pim sm

[SwitchB-Vlan-interface12] quit

# Create VLAN 23, and assign Ten-GigabitEthernet 1/0/3 to this VLAN.

[SwitchB] vlan 23

[SwitchB-vlan23] port ten-gigabitethernet 1/0/3

[SwitchB-vlan23] quit

# Assign an IP address to VLAN-interface 23, enable PIM-SM on the interface.

[SwitchB] interface vlan-interface 23

[SwitchB-Vlan-interface23] ip address 10.23.1.2 24

[SwitchB-Vlan-interface23] pim sm

[SwitchB-Vlan-interface23] quit

# Create VLAN 101, and assign Ten-GigabitEthernet 1/0/1 to this VLAN.

[SwitchB] vlan 101

[SwitchB-vlan101] port ten-gigabitethernet 1/0/1

[SwitchB-vlan101] quit

# Assign an IP address to VLAN-interface 101, enable IGMP on the interface.

[SwitchB] interface vlan-interface 101

[SwitchB-Vlan-interface101] ip address 10.101.1.1 24

[SwitchB-Vlan-interface101] igmp enable

[SwitchB-Vlan-interface101] quit

3. Specify the unused IP address 10.13.1.4 as a static RP.

[SwitchB] pim

[SwitchB-pim] static-rp 10.13.1.4 bidir

4. Enable BIDIR-PIM.

[SwitchB-pim] bidir-pim enable

[SwitchB-pim] quit

5. Configure OSPF.

[SwitchB] ospf 1

[SwitchB-ospf-1] import-route direct

[SwitchB-ospf-1] area 0

[SwitchB-ospf-1-area-0.0.0.0] network 10.0.0.0 0.255.255.255

[SwitchB-ospf-1-area-0.0.0.0] quit

[SwitchB-ospf-1] quit

Configure Switch C

1. Enable IP multicast routing.

<SwitchC> system-view

System View: return to User View with Ctrl+Z.

[SwitchC] multicast routing

[SwitchC-mrib] quit

2. Configure each interface and enable PIM-SM.

# Create VLAN 33, and assign Ten-GigabitEthernet 1/0/4 to this VLAN.

[SwitchC] vlan 33

[SwitchC-vlan33] port ten-gigabitethernet 1/0/4

[SwitchC-vlan33] quit

# Assign an IP address to VLAN-interface 33, enable PIM-SM on the interface.

[SwitchC] interface vlan-interface 33

[SwitchC-Vlan-interface33] ip address 10.33.1.3 24

[SwitchC-Vlan-interface33] pim sm

[SwitchC-Vlan-interface33] quit

# Create VLAN 13, and assign Ten-GigabitEthernet 1/0/3 to this VLAN.

[SwitchC] vlan 13

[SwitchC-vlan13] port ten-gigabitethernet 1/0/3

[SwitchC-vlan13] quit

# Assign an IP address to VLAN-interface 13, enable PIM-SM on the interface.

[SwitchC] interface vlan-interface 13

[SwitchC-Vlan-interface13] ip address 10.13.1.3 24

[SwitchC-Vlan-interface13] pim sm

[SwitchC-Vlan-interface13] quit

# Create VLAN 23, and assign Ten-GigabitEthernet 1/0/2 to this VLAN.

[SwitchC] vlan 23

[SwitchC-vlan23] port ten-gigabitethernet 1/0/2

[SwitchC-vlan23] quit

# Assign an IP address to VLAN-interface 23, enable PIM-SM on the interface.

[SwitchC] interface vlan-interface 23

[SwitchC-Vlan-interface23] ip address 10.23.1.3 24

[SwitchC-Vlan-interface23] pim sm

[SwitchC-Vlan-interface23] quit

# Create VLAN 102, and assign Ten-GigabitEthernet 1/0/1 to this VLAN.

[SwitchC] vlan 102

[SwitchC-vlan102] port ten-gigabitethernet 1/0/1

[SwitchC-vlan102] quit

# Assign an IP address to VLAN-interface 102, enable IGMP on the interface.

[SwitchC] interface vlan-interface 102

[SwitchC-Vlan-interface102] ip address 10.102.1.1 24

[SwitchC-Vlan-interface102] igmp enable

[SwitchC-Vlan-interface102] quit

3. Specify the unused IP address 10.13.1.4 as a static RP.

[SwitchC] pim

[SwitchC-pim] static-rp 10.13.1.4 bidir

4. Enable BIDIR-PIM

[SwitchC-pim] bidir-pim enable

[SwitchC-pim] quit

5. Configure OSPF.

[SwitchC] ospf 1

[SwitchC-ospf-1] import-route direct

[SwitchC-ospf-1] area 0

[SwitchC-ospf-1-area-0.0.0.0] network 10.0.0.0 0.255.255.255

[SwitchC-ospf-1-area-0.0.0.0] quit

[SwitchC-ospf-1] quit

Verifying the configuration

1. Verify that Switch A, Switch B, and Switch C have established PIM neighbor relationships.

# Display PIM neighbor information on Switch A.

[SwitchA] display pim neighbor

Total Number of Neighbors = 2

Neighbor Interface Uptime Expires DR-Priority Mode

10.12.1.2 Vlan12 00:02:27 00:01:45 1 B

10.13.1.3 Vlan13 00:02:27 00:01:19 1 B

# Display PIM neighbor information on Switch B.

[SwitchB] display pim neighbor

Total Number of Neighbors = 2

Neighbor Interface Uptime Expires DR-Priority Mode

10.12.1.1 Vlan12 00:03:05 00:01:44 1 B

10.23.1.3 Vlan23 00:13:49 00:01:29 1 B

# Display PIM neighbor information on Switch C.

[SwitchC] display pim neighbor

Total Number of Neighbors = 2

Neighbor Interface Uptime Expires DR-Priority Mode

10.13.1.1 Vlan13 00:03:28 00:01:39 1 B

10.23.1.2 Vlan23 00:14:05 00:01:36 1 B

2. Verify that VLAN-interface 12 on Switch A has been elected as the BSR on each switch.

# Display BSR information on Switch A.

[SwitchA] display pim bsr-info

Scope: non-scoped

State: Elected

Bootstrap timer: 00:01:18

Elected BSR address: 10.12.1.1

Priority: 64

Hash mask length: 30

Uptime: 00:04:01

Candidate BSR address: 10.12.1.1

Priority: 64

Hash mask length: 30

# Display BSR information on Switch B.

[SwitchB] display pim bsr-info

Scope: non-scoped

State: Accept Preferred

Bootstrap timer: 00:00:26

Elected BSR address: 10.12.1.1

Priority: 64

Hash mask length: 30

Uptime: 00:10:41

# Display BSR information on Switch C.

[SwitchC] display pim bsr-info

Scope: non-scoped

State: Accept Preferred

Bootstrap timer: 00:02:08

Elected BSR address: 10.12.1.1

Priority: 64

Hash mask length: 30

Uptime: 00:15:41

3. Verify that VLAN-interface 12 on Switch A has been elected as the RP, and verify that the IP address of the static RP is 10.13.1.4 on each switch.

# Display RP information on Switch A.

[SwitchA] display pim rp-info

BSR RP information:

Scope: non-scoped

Group/MaskLen: 224.0.0.0/4 [B]

RP address Priority HoldTime Uptime Expires

10.12.1.1 (local) 192 150 00:06:01 00:02:58

Static RP information:

RP address ACL Mode Preferred

10.13.1.4 ---- bidir No

# Display RP information on Switch B.

[SwatchB] display pim rp-info

BSR RP information:

Scope: non-scoped

Group/MaskLen: 224.0.0.0/4 [B]

RP address Priority HoldTime Uptime Expires

10.12.1.1 192 150 00:06:33 00:02:26

Static RP information:

RP address ACL Mode Preferred

10.13.1.4 ---- bidir No

# Display RP information on Switch C.

[SwitchC] display pim rp-info

BSR RP information:

Scope: non-scoped

Group/MaskLen: 224.0.0.0/4 [B]

RP address Priority HoldTime Uptime Expires

10.12.1.1 192 150 00:06:51 00:02:05

Static RP information:

RP address ACL Mode Preferred

10.13.1.4 ---- bidir No

4. Verify that the DFs have been elected for BIDIR-PIM on each switch.

# Display information about DFs for BIDIR-PIM on Switch A.

[SwitchA] display pim df-info

RP address: 10.12.1.1

Interface State DF-Pref DF-Metric DF-Uptime DF-Address

Vlan100 Win 0 0 00:01:09 10.10.1.1 (local)

Vlan12 - - - - -

Vlan13 Win 0 0 00:01:10 10.13.1.1 (local)

RP address: 10.13.1.4

Interface State DF-Pref DF-Metric DF-Uptime DF-Address

Vlan100 Win 0 0 00:00:07 10.10.1.1 (local)

Vlan12 Win 0 0 00:00:07 10.12.1.1 (local)

Vlan13 - - - - -

# Display information about DFs for BIDIR-PIM on Switch B.

[SwatchB] display pim df-info

RP address: 10.12.1.1

Interface State DF-Pref DF-Metric DF-Uptime DF-Address

Vlan12 - - - - -

Vlan23 Win 0 0 00:01:46 10.23.1.2 (local)

Vlan101 Win 0 0 00:01:45 10.101.1.1 (local)

RP address: 10.13.1.4

Interface State DF-Pref DF-Metric DF-Uptime DF-Address

Vlan12 Lose 0 0 00:00:44 10.12.1.1

Vlan23 Lose 0 0 00:00:53 10.23.1.3

Vlan101 Win 10 2 00:00:53 10.101.1.1 (local)

# Display information about DFs for BIDIR-PIM on Switch C.

[SwitchC] display pim df-info

RP address: 10.12.1.1

Interface State DF-Pref DF-Metric DF-Uptime DF-Address

Vlan102 Win 10 2 00:02:07 10.102.1.1 (local)

Vlan33 Win 10 2 00:02:06 10.33.1.3 (local)

Vlan13 Lose 0 0 00:02:07 10.13.1.1

Vlan23 Lose 0 0 00:02:07 10.23.1.2

RP address: 10.13.1.4

Interface State DF-Pref DF-Metric DF-Uptime DF-Address

Vlan102 Win 0 0 00:01:24 10.102.1.1 (local)

Vlan33 Win 0 0 00:01:23 10.33.1.3 (local)

Vlan13 - - - - -

Vlan23 Win 0 0 00:01:24 10.23.1.3 (local)

5. Verify that DFs for multicast forwarding are correct on each switch.

# Display information about DFs for multicast forwarding on Switch A.

[SwitchA] display multicast forwarding df-info

Total 2 RPs, 2 matched

00001. RP address: 10.12.1.1

Flags: 0x0

Uptime: 00:02:42

RPF interface: Vlan-interface12

List of 2 DF interfaces:

1: Vlan-interface100

2: Vlan-interface13

00002. RP address: 10.13.1.4

Flags: 0x0

Uptime: 00:01:41

RPF interface: Vlan-interface13

List of 2 DF interfaces:

1: Vlan-interface100

2: Vlan-interface12

# Display information about DFs for multicast forwarding on Switch B.

[SwitchB] display multicast forwarding df-info

Total 2 RPs, 2 matched

00001. RP address: 10.12.1.1

Flags: 0x0

Uptime: 00:03:18

RPF interface: Vlan-interface12

List of 2 DF interfaces:

1: Vlan-interface23

2: Vlan-interface101

00002. RP address: 10.13.1.4

Flags: 0x0

Uptime: 00:02:24

RPF interface: Vlan-interface23

List of 1 DF interfaces:

1: Vlan-interface101

# Display information about DFs for multicast forwarding on Switch C.

[SwitchC] display multicast forwarding df-info

Total 2 RPs, 2 matched

00001. RP address: 10.12.1.1

Flags: 0x0

Uptime: 00:03:38

RPF interface: Vlan-interface23

List of 2 DF interfaces:

1: Vlan-interface102

2: Vlan-interface33

00002. RP address: 10.13.1.4

Flags: 0x0

Uptime: 00:02:41

RPF interface: Vlan-interface13

List of 3 DF interfaces:

1: Vlan-interface33

2: Vlan-interface23

3: Vlan-interface102

6. Send IGMP reports from Host A and Host B to join multicast group 225.1.1.1, and send multicast data from Source 1 and Source 2 to the group. (Details not shown.)

7. Verify that PIM forwarding entries have been correctly established on each switch.

# Display information about PIM routing entries on Switch A.

[SwitchA] display pim routing-table

Total 1 (*, G) entry; 0 (S, G) entry

(*, 225.1.1.1)

RP: 10.12.1.1 (local)

Protocol: pim-bidir, Flag: WC LOC ACT

UpTime: 00:21:59

Upstream interface: Vlan-interface12

Upstream neighbor: NULL

RPF prime neighbor: NULL

Downstream interface(s) information:

Total number of downstreams: 1

1: Vlan-interface12

Protocol: pim-bidir, UpTime: 00:21:59, Expires: -

2: Vlan-interface13

Protocol: pim-bidir, UpTime: 00:03:26, Expires: -

# Display information about PIM routing entries on Switch B.

[SwitchB] display pim routing-table

Total 1 (*, G) entry; 0 (S, G) entry

(*, 225.1.1.1)

RP: 10.12.1.1

Protocol: pim-bidir, Flag: WC LOC ACT

UpTime: 00:23:47

Upstream interface: Vlan-interface12

Upstream neighbor: NULL

RPF prime neighbor: NULL

Downstream interface(s) information:

Total number of downstreams: 3

1: Vlan-interface12

Protocol: pim-bidir, UpTime: 00:23:47, Expires: -

2: Vlan-interface23

Protocol: pim-bidir, UpTime: 00:21:56, Expires: -

3: Vlan-interface101

Protocol: igmp, UpTime: 00:23:47, Expires: -

# Display information about PIM routing entries on Switch C.

[SwitchC] display pim routing-table

Total 1 (*, G) entry; 0 (S, G) entry

(*, 225.1.1.1)

RP: 10.12.1.1

Protocol: pim-bidir, Flag: WC ACT

UpTime: 00:01:45

Upstream interface: Vlan-interface23

Upstream neighbor: 10.23.1.2

RPF prime neighbor: 10.23.1.2

Downstream interface(s) information:

Total number of downstreams: 2

1: Vlan-interface102

Protocol: igmp, UpTime: 00:01:05, Expires: -

2: Vlan-interface23

Protocol: pim-bidir, UpTime: 00:00:53, Expires: -

Configuration files

· Switch A:

ospf 1

area 0.0.0.0

network 10.0.0.0 0.255.255.255

vlan 12 to 13

vlan 100

interface Vlan-interface12

ip address 10.12.1.1 255.255.255.0

pim sm

interface Vlan-interface13

ip address 10.13.1.1 255.255.255.0

pim sm

interface Vlan-interface100

ip address 10.10.1.1 255.255.255.0

pim sm

interface Ten-GigabitEthernet1/0/1

port link-mode bridge

port access vlan 100

interface Ten-GigabitEthernet1/0/2

port link-mode bridge

port access vlan 12

interface Ten-GigabitEthernet1/0/3

port link-mode bridge

port access vlan 13

multicast routing

pim

bidir-pim enable

c-bsr 10.12.1.1

c-rp 10.12.1.1 bidir

static-rp 10.13.1.4 bidir

· Switch B:

ospf 1

area 0.0.0.0

network 10.0.0.0 0.255.255.255

vlan 12

Vlan 23

vlan 101

interface Vlan-interface12

ip address 10.12.1.2 255.255.255.0

pim sm

interface Vlan-interface23

ip address 10.23.1.2 255.255.255.0

pim sm

interface Vlan-interface101

ip address 10.101.1.1 255.255.255.0

igmp enable

interface Ten-GigabitEthernet1/0/1

port link-mode bridge

port access vlan 101

interface Ten-GigabitEthernet1/0/2

port link-mode bridge

port access vlan 12

interface Ten-GigabitEthernet1/0/3

port link-mode bridge

port access vlan 23

multicast routing

pim

bidir-pim enable

static-rp 10.13.1.4 bidir

· Switch C:

ospf 1

area 0.0.0.0

network 10.0.0.0 0.255.255.255

vlan 13

vlan 23

vlan 33

vlan 102

interface Vlan-interface13

ip address 10.13.1.3 255.255.255.0

pim sm

interface Vlan-interface23

ip address 10.23.1.3 255.255.255.0

pim sm

interface Vlan-interface33

ip address 10.33.1.3 255.255.255.0

pim sm

interface Vlan-interface102

ip address 10.102.1.1 255.255.255.0

igmp enable

interface Ten-GigabitEthernet1/0/1

port link-mode bridge

port access vlan 102

interface Ten-GigabitEthernet1/0/2

port link-mode bridge

port access vlan 23

interface Ten-GigabitEthernet1/0/3

port link-mode bridge

port access vlan 13

interface Ten-GigabitEthernet1/0/4

port link-mode bridge

port access vlan 33

multicast routing

pim

bidir-pim enable

static-rp 10.13.1.4 bidir

H3C Fixed Port Campus Switches Configuration Examples-B70D022-6W100

Introduction

Prerequisites

Example: Configuring BIDIR-PIM

Network configuration

Analysis

Applicable hardware and software versions

Restrictions and guidelines

Procedures

Configure Switch A

Configure Switch B

Configure Switch C

Verifying the configuration

Configuration files

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