H3C S9500 Series Operating instructions

Brand: H3C

Model: S9500 Series

Type: Operating instructions

The H3C S9500 Series, your newly purchased routing switch, offers a comprehensive suite of features to enhance your network's connectivity, security, and performance. With its advanced capabilities, you can:

Ensure reliable multicast source discovery and data distribution across different domains using the Multicast Source Discovery Protocol (MSDP).
Implement Anycast RP for load sharing and redundancy, enabling multicast sources and receivers to select the nearest RP for efficient communication.

Ensure reliable multicast source discovery and data distribution across different domains using the Multicast Source Discovery Protocol (MSDP).
Implement Anycast RP for load sharing and redundancy, enabling multicast sources and receivers to select the nearest RP for efficient communication.

Operation Manual – MSDP

H3C S9500 Series Routing Switches Table of Contents

Table of Contents

Chapter 1 MSDP Configuration....................................................................................................1-1

1.1 MSDP Overview.................................................................................................................1-1

1.1.1 Introduction..............................................................................................................1-1

1.1.2 Working Principle ....................................................................................................1-2

1.2 MSDP Configuration..........................................................................................................1-4

1.2.1 Enabling MSDP.......................................................................................................1-4

1.2.2 Configuring MSDP Peers........................................................................................1-5

1.2.3 Configuring Static RPF Peers.................................................................................1-5

1.2.4 Configuring Originating RP .....................................................................................1-6

1.2.5 Configuring SA Caching State ................................................................................1-6

1.2.6 Configuring the Maximum Number of SA Caching.................................................1-7

1.2.7 Requesting Source Information of MSDP Peers..................................................... 1-7

1.2.8 Controlling the Source Information Created............................................................1-7

1.2.9 Controlling the Source Information Forwarded.......................................................1-8

1.2.10 Controlling the Received Source Information ....................................................... 1-9

1.2.11 Configuring MSDP Mesh Group..........................................................................1-10

1.2.12 Configuring the MSDP Connection Retry Period................................................1-10

1.2.13 Shutting MSDP Peers Down...............................................................................1-11

1.2.14 Clearing MSDP Connections, Statistics and SA Caching Configuration............1-11

1.3 Displaying and Maintaining MSDP ..................................................................................1-11

1.4 MSDP Configuration Examples.......................................................................................1-12

1.4.1 Configuring Static RPF Peers...............................................................................1-12

1.4.2 Configuring Anycast RP........................................................................................1-14

1.4.3 MSDP Integrated Networking................................................................................1-17

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Chapter 1 MSDP Configuration

When configuring MSDP, go to these sections for information you are interested in:

z MSDP Overview

z MSDP Configuration

z Displaying and Maintaining MSDP

z MSDP Configuration Examples

1.1 MSDP Overview

1.1.1 Introduction

No ISP would like to forward multicast traffic by RPs of competitors, but do expect to

obtain information from the source and distribute it among the members, regardless of

the location of the multicast source RP. MSDP is proposed to solve this problem.

Multicast source discovery protocol (MSDP) describes interconnection mechanism of

multiple PIM-SM domains. It is used is to discover multicast source information in other

PIM-SM domains. MSDP allows the RPs of different domains to share the multicast

source information, but all these domains must use PIM-SM as their intro-domain

multicast routing protocol.

A RP configured with MSDP peer notifies all of its MSDP peers of the active multicast

source message in its domain via a source active (SA) message. In this way, multicast

source information in a PIM-SM domain is transmitted to another PIM-SM domain.

MSDP peer relationship can be established between RPs in different domains or in a

domain, between a RP and a common router, or between common routers. The

connection between MSDP peers is a TCP connection.

MSDP makes a PIM-SM domain independent of the RP in another PIM-SM domain.

After getting multicast source information in that domain, the receiver here can join

directly to the SPT of the multicast source in that domain.

Another application of MSDP is Anycast RP. In a domain, configure a certain interface

(usually Loopback interface) on different routers with the same IP address; designate

these interfaces as C-RPs; and create MSDP peer relationship among them. After the

unicast route convergence, the multicast source can select the nearest RP for

registration, and the receiver can also select the nearest RP to add into its RPT. The

RPs exchange individual registration source information via MSDP peers. Therefore,

every RP knows all multicast sources of the entire domain; and every receiver on each

RP can receive multicast data from all the multicast sources in the entire domain.

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By initiating registration and RPT joining to the nearest RP, MSDP implements RP load

sharing. Once an RP turns invalid, its original registered source and receivers will

select another nearest RP, implementing redundant RP backup.

In addition, MSDP only accepts the SA messages from the correct paths and excludes

redundant SA messages through RPF check mechanism, and prevents the flooding of

SA messages among MSDP peers by configuring Mesh Group.

1.1.2 Working Principle

I. Identifying multicast source and receiving multicast data

As shown in Figure 1-1, the RPs of PIM-SM domains 1, 2 and 3 establish peer

relationship between them. Domain 3 contains a group member.

Figure 1-1 MSDP working principles (I)

When the multicast source in domain 1 sends data to the multicast group, the working

process of the member in domain 3, from discovering the multicast source to receiving

data from the source, includes the following:

The multicast source in PIM-SM domain 1 begins to send datagram.

The DR connected to the multicast source encapsulates the datagram into a Register

packet and forward it to the RP in domain 1.

The RP in domain 1 decapsulates the packet and forwards it along the RPT to all the

members within the domain. The domain members can choose whether to switch to the

SPT.

The RP in domain 1 generates an SA message for the MSDP peers (the RPs in

PIM-SM domain 2 and domain 3). The SA message contains multicast source IP

address, multicast group address and the address of the RP that generates the

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message. Besides, the RP in domain 1 encapsulates the first received multicast data

into this SA message.

If there is any group member in the domain of an MSDP peer (in the figure, it is PIM-SM

domain 3), the RP in this domain sends the multicast data encapsulated in the SA

message to group members along the RPT and the join message to multicast source.

After the reverse forwarding path is created, the multicast source data is sent directly to

the RP in domain 3, and then the RP forwards the data along the RPT. In this case, the

last hop router connected with the group member in domain 3 can choose whether to

switch to SPT.

II. Message forwarding and RPF check between MSDP peers

As shown in Figure 1-2, Switch A belongs to domain 1, Switch B, Switch C, and Switch

D to domain 2, and Switch E and Switch F to domain 3. MSDP peer relationship is

established between them, indicated with bi-directional arrows in the figure. Among

them, Mesh Group is created among Switch B, Switch C and Switch D.

Source

Switch A

AS 1

AS 2

Switch B

Switch C

Switch D

Mesh Group

Switch E

Switch F

Static Peer

AS 3

Figure 1-2 MSDP working principles (II)

The SA message forwarding and RPF check among these MSDP peers are illustrated

as follows:

If the SA message is from a MSDP peer that is the RP of the multicast source, it is

received and forwarded to other peers (for example, from Switch A to Switch B).

If the SA message is from a MSDP peer that has only one peer, it is received (for

example, from Switch B to Switch A).

If the SA message is from a static RPF peer, it is received and forwarded to other peers

(for example, from Switch D to Switch E).

If the SA message is from a MSDP peer in Mesh Group, it is received and forwarded to

the peers outside the Mesh Group (for example, from Switch B to Switch D).

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If the SA message is sent from a MSDP peer in the same domain, and the peer is the

next hop along the optimal path to the RP in the domain of source, it is received and

forwarded to other peers (for example, from Switch E to Switch F).

If the SA message is sent from a MSDP peer in a different domain which is the next

autonomous domain along the optimal path to the RP in the domain of source, it is

received and forwarded to other peers (for example, Switch D to Switch F).

For other SA messages, they are neither received nor forwarded.

III. Precautions for configuration

The router running MSDP must also run BGP or MBGP. It is recommended to use the

same IP address of the MSDP peer with that of the BGP peer or MBGP peer. If neither

BGP nor MBGP is in operation, a static RPF peer should be configured.

1.2 MSDP Configuration

Basic configuration tasks of MSDP include

z Enabling MSDP

z Configuring MSDP Peers

Advanced configuration tasks of MSDP include

z Configuring Static RPF Peers

z Configuring Originating RP

z Configuring SA Caching State

z Configuring the Maximum Number of SA Caching

z Requesting Source Information of MSDP Peers

z Controlling the Source Information Created

z Controlling the Source Information Forwarded

z Controlling the Received Source Information

z Configuring MSDP Mesh Group

z Configuring the MSDP Connection Retry Period

z Shutting MSDP Peers Down

z Clearing MSDP Connections, Statistics and SA Caching Configuration

1.2.1 Enabling MSDP

To configure MSDP, you must enable MSDP first.

Perform the following operation in system view to enable/disable MSDP:

To do... Use the command...

Enable MSDP and enter MSDP view

msdp

Clear all MSDP configurations

undo msdp

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1.2.2 Configuring MSDP Peers

To run MSDP, you need to configure MSDP peers locally.

Perform the following operations in MSDP view to configure MSDP peers:

To do... Use the command...

Configure MSDP peers

peer peer-address connect-interface

interface-type interface-number

Remove MSDP peer configuration

undo peer peer-address

Add description to a MSDP peer

peer peer-address description text

Remove the description

undo peer peer-address description text

The command to add description is optional.

If the local router is also in BGP Peer relation with an MSDP peer, the MSDP peer and

the BGP peer should use the same IP address.

Neither of any two routers between which MSDP peer relationship has been

established must run BGP or MBGP, as long as they have a BGP or MBGP route

between them. If no BGP of MBGP route exists between them, you must configure

static RPF peers.

1.2.3 Configuring Static RPF Peers

Perform the following operation in MSDP view to configure/remove static RPF peers:

To do... Use the command...

Configure static RPF peers

static-rpf-peer peer-address [ rp-policy

ip-prefix-name]

Remove static RPF peer configuration

undo static-rpf-peer peer-address

By default, no static RPF peer is configured.

 Note:

z The peer command must be configured before the static-rpf-peer command.

z If only one MSDP peer is configured via the peer command, the MSDP peer will be

regarded as the static RPF peer.

To configure multiple static RPF peers at the same time, take either of the two methods:

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z Using rp-policy parameters universally: Multiple static RPF peers take effect at

the same time and SA messages are filtered by the RP addresses contained

according to the configured prefix list. If multiple static RPF peers using the same

rp-policy parameter are configured, any peer that receives an SA message will

forward it to the other peers.

z Not using the rp-policy parameter universally: According to the configuration

sequence, only the first static RPF peer whose connection state is UP is activated.

All SA messages from the peer will be received and those from other static RPF

peers will be discarded. Once the activated static RPF peer turns invalid (for

example, the configuration is removed or the connection is interrupted), the

following first static RPF peer with UP connection state according to the

configuration sequence will assume its role.

1.2.4 Configuring Originating RP

During the creation of SA message, an MSDP peer can be configured to use the IP

address of a specified interface as the RP address in its SA message.

Perform the following operation in MSDP view to configure/remove originating RP:

To do... Use the command...

Configure an MSDP peer to use the IP address of

a specified interface as the RP address of its SA

message

originating-rp interface-type

interface-number

Remove the above operation

undo originating-rp

By default, the RP address in SA message is the one configured by PIM.

1.2.5 Configuring SA Caching State

When SA messages are cached on a router, the new join-in groups can directly access

all the active sources and join the corresponding source tree, instead of waiting for the

arrival of the next SA message.

Perform the following operation in MSDP view to configure/disable SA caching state:

To do... Use the command...

Configure SA caching state

cache-sa-enable

Disable SA caching state

undo cache-sa-enable

By default, the router caches the SA state, or rather the (S, G) entry when receiving an

SA message.

Some memory is consumed as the join delay of groups is shortened by this

configuration.

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1.2.6 Configuring the Maximum Number of SA Caching

To prevent Deny of Service (DoS) attacks, you can set the maximum number of SAs

cached on the router.

Perform the following operation in MSDP view to configure/restore the maximum

number of SA caching:

To do... Use the command...

Configuring the maximum number of SA

caching

peer peer-address sa-cache-maximum

sa-limit

Restore the default configuration

undo peer peer-address

sa-cache-maximum

By default, the maximum number of SA caching is 2048.

1.2.7 Requesting Source Information of MSDP Peers

When a new group joins, the router will send a SA request message to the specified

MSDP peer, and the MSDP peer will respond with the SA messages it caches. If the

MSDP peer does not enable the SA caching, the configuration is invalid.

Perform the following operations in MSDP view to request source information of MSDP

peers or restore the default configuration:

To do... Use the command...

Configure the router to send SA request

message to the specified MSDP peer when

receiving the join message of a group

peer peer-address

request-sa-enable

Restore the default configuration

undo peer peer-address

request-sa-enable

The SA request message sent by a local RP will get the immediate response about all

active sources.

By default, the router does not send SA request message to its MSDP peer when

receiving the join message of a group. Instead, it waits for the arrival of SA message of

the next period.

1.2.8 Controlling the Source Information Created

I. Filtering the multicast routing entries imported

RP filters the registered sources to control the information of the active sources

advertised in SA message. MSDP peers can be configured to only advertise the

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qualified (S, G) entries in the multicast routing table when creating SA messages, that is,

to control the (S,G) entries imported from the multicast routing table to the domain.

Perform the following operations in MSDP view to filter the multicast routing entries

imported or remove the configuration:

To do... Use the command...

Advertise only the (S, G) entries

permitted by the ACL

import-source [ acl acl-number ]

Remove the above configuration

undo import-source

By default, only intra-domain sources are advertised in SA messages.

If the import-source command without acl parameter is executed, no source is

advertised in SA messages.

II. Filtering SA request messages

Perform the following operations in MSDP view to filter SA request messages or

remove the configuration:

To do... Use the command...

Filter all the SA request messages from

a specified MSDP peer

peer peer-address sa-request-policy

Filter the SA request messages of the

groups of a specified MSDP peer

permitted by the basic ACL from

peer peer-address sa-request-policy

acl acl-number

Remove the configuration of filtering SA

request messages

undo peer peer-address

sa-request-policy

By default, only the routers which caches SA messages can respond to SA request

messages. Routers receive all SA request messages from its MSDP peers.

Multicast group addresses are described in ACL. If no ACL is specified, all SA request

messages sent by the corresponding MSDP peer will be ignored. If an ACL is specified,

only SA request messages of the groups permitted by the ACL will be processed.

1.2.9 Controlling the Source Information Forwarded

Controlling of source information also includes that of forwarding and receiving source

information besides that of creating source information. The outbound filter or time to

live (TTL) threshold of SA messages can be used to control the SA message forwarding.

By default, all SA messages are forwarded to other MSDP peers.

I. Using MSDP outbound filter

MSDP outbound filter of are functional in:

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z Filtering off all the (S, G) entries

z Forwarding only the SA messages permitted by the advanced ACL

Perform the following operations in MSDP view to use MSDP outbound filter to control

the source information forwarded:

To do... Use the command...

Filter off all the SA messages to a specified

MSDP peer

peer peer-address sa-policy export

Forward the SA messages permitted by the

advanced ACL to a specified MSDP peer

peer peer-address sa-policy export

acl acl-number

Remove the filtering over the source

information forwarded

undo peer peer-address sa-policy

export

II. Using TTL to filter SA messages with encapsulated data

An SA message with encapsulated data can reach the specified MSDP peer only when

the TTL in its IP header is no less than the threshold. Therefore, the forwarding of SA

messages with encapsulated data can be controlled by configuring the TTL threshold.

For example, you can set the TTL threshold for intra-domain multicast traffic to 10 if you

wish to restrict SA messages with TTL less than or equal to 10 carrying encapsulated

data from being propagated. If you set the TTL threshold greater than 10, then they can

be propagated to outside.

Perform the following operations in MSDP view to use TTL to filter SA messages with

encapsulated data or the remove the configuration:

To do... Use the command...

Filter off the multicast data encapsulated

in the first SA message aiming at a

specified MSDP peer

peer peer-address minimum-ttl ttl

Remove the TTL threshold configuration

undo peer peer-address minimum-ttl

The default value of TTL threshold is 0.

1.2.10 Controlling the Received Source Information

Perform the following operations in MSDP view to control the received source

information:

To do... Use the command...

Filter off the SA messages from a specified

MSDP peer

peer peer-address sa-policy import

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To do... Use the command...

Receive the SA messages permitted by the

advanced ACL from a specified MSDP peer

peer peer-address sa-policy import

acl acl-number

Remove the filtering rule over received

source information

undo peer peer-address sa-policy

import

Similar to MSDP outbound filter in function, MSDP inbound filter controls the received

SA messages. By default, the SA messages from all peers are accepted.

1.2.11 Configuring MSDP Mesh Group

Mesh Group is useful when full connection among MSDP peers is required but SA

message flooding shall be prevented.

In a Mesh group, SA messages from outside the group are forwarded to other members

in the group, but the SA messages from peers inside the group will not be performed

with Peer-RPF check or forwarded in the group. In this case, the overflow of SA

messages is avoided and Peer-RPF is simplified, as BGP or MBGP is not required

between MSDP peers.

Perform the following operations in MSDP view to configure/remove MSDP full

connection group:

To do... Use the command...

Configure an MSDP peer to be a

member of an MSDP Mesh Group

peer peer-address mesh-group name

Delete that member from the Group

undo peer peer-address mesh-group

name

If an MSDP peer is configured into different mesh groups, only the last configuration is

valid.

1.2.12 Configuring the MSDP Connection Retry Period

Perform the following operations in MSDP view to configure/restore the MSDP

connection retry period:

To do... Use the command...

Configuring the MSDP connection retry period

timer retry seconds

Restore the default value of MSDP connection

retry interval

undo timer retry

By default, MSDP connection is retried at the interval of 30 seconds.

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1.2.13 Shutting MSDP Peers Down

The session between MSDP peers can be cut off and re-activated as needed.

If a session between MSDP peers is cut off, the TCP connection will terminate with no

retry effort, but the configuration information will be reserved.

Perform the following operations in MSDP view to shut down/turn up MSDP peers:

To do... Use the command...

Shut down a specified MSDP peer

shutdown peer-address

Turn the MSDP peer up

undo shutdown peer-address

By default, MSDP peer is enabled.

1.2.14 Clearing MSDP Connections, Statistics and SA Caching Configuration

Perform the following operations in user view to clear MSDP connections, statistics and

SA caching configuration:

To do... Use the command...

Clear a specified TCP connection and

reset the counters of all MSDP

information

reset msdp peer peer-address

Clear MSDP peer statistics reset msdp statistics [ peer-address ]

Clear cached SA entries of MSDP reset msdp sa-cache [ group-address ]

1.3 Displaying and Maintaining MSDP

I. Displaying and debugging MSDP

To do... Use the command... Remarks

Display the numbers of

sources and groups of SA

messages from a

specified autonomous

domain

display msdp sa-count

[ as-number ]

Available in

any view

Display the details of a

MSDP peer

display msdp peer-status

[ peer-address ]

Available in

any view

Display the (S, G) state

learnt from MSDP peer

display msdp sa-cache

[ group-address | source-address |

as-number ] *

Available in

any view

Display MSDP peer state

display msdp brief

Available in

any view

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To do... Use the command... Remarks

Enable MSDP debugging

debugging msdp { all | connect |

event | packet | source-active }

Available in

user view

Caution:

The display msdp sa-count command give output only after the cache-sa-enable

command is executed.

II. Tracing the transmission path of SA messages on the network

The msdp-tracert command can be used in any view to trace the network path of

multicast data from multicast source to destination receiver and locate faults.

Perform the follow operation to trace the transmission path of SA messages on the

network:

To do... Use the command...

Trace the transmission

path of SA messages on

the network

msdp-tracert { source-address } { group-address }

{ rp-address } [ max-hops max-hops ] [ next-hop-info ]

[ sa-info ] [ peer-info ] [ skip-hops skip-hops ] *

Locating information loss and reducing configuration faults can be realized by tracing

the network path of the specified (S, G, RP) entries. After the transmission path of SA

messages is determined, the overflow of SA messages can be avoided by the correct

configuration.

1.4 MSDP Configuration Examples

1.4.1 Configuring Static RPF Peers

I. Network requirements

In the following network environment shown in Figure 1-3, four H3C S9500 series

routing switches are in the different PIM-SM domains with no BGP or MBGP running

among them.

To enable Switch D to receive the specified source information from PIM-SM domains 1,

2 and 3, you can configure static RPF peers with the rp-policy Argument.

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After the configuration is complete, Switch D will only receive SA messages permitted

by the corresponding filtering policy from its static RPF peers.

II. Network diagram

PIM-SM 1

PIM-SM 4

PIM-SM 3

PIM-SM 2

Switch A

Switch D

Switch C Switch B

Static RPF peer

10.1.1.1

Vlan-interface 10

Vlan-interface 20

Vlan-interface 30

Figure 1-3 Configure static RPF peers

III. Configuration procedure

Configure Switch D as follows:

# Configure Switch A to be a static RPF peer of Switch D.

<SwitchD> system-view

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

[SwitchD] ip ip-prefix list-a permit 10.10.0.0 16

[SwitchD] msdp

[SwitchD-msdp] peer 10.10.1.1 connect-interface Vlan-interface 10

[SwitchD-msdp] static-rpf-peer 10.10.1.1 rp-policy list-a

[SwitchD-msdp] quit

# Configure Switch B to be a static RPF peer of Switch D.

[SwitchD] ip ip-prefix list-b permit 10.21.0.0 16

[SwitchD] msdp

[SwitchD-msdp] peer 10.21.1.1 connect-interface Vlan-interface 20

[SwitchD-msdp] static-rpf-peer 10.21.1.1 rp-policy list-b

[SwitchD-msdp] quit

# Configure Switch C to be a static RPF peer of Switch D.

[SwitchD] ip ip-prefix list-c permit 10.25.0.0 16

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[SwitchD] msdp

[SwitchD-msdp] peer 10.25.1.1 connect-interface Vlan-interface30

[SwitchD-msdp] static-rpf-peer 10.25.1.1 rp-policy list-c

1.4.2 Configuring Anycast RP

I. Network requirements

To configure Anycast RP in the PIM-SM domain, establish MSDP peer relationship

between Switch A and Switch B; use the address of Loopback 0 on Switch A and

Switch B to send out SA messages; set Loopback 10 on Switch A and Switch B as

BSR/RP and configure the Anycast RP address. In this way, when a unicast group

member joins, the switch directly connected to the host can originate a join message to

the nearest RP in the topology.

 Note:

This example focuses on the configuration of Switch A and Switch B. Configuration

performed on Switch E, Switch D and Switch C is omitted as it mainly concerns

enabling multicast and enabling PIM-SM on the interfaces.

II. Network diagram

Figure 1-4 Network diagram for Anycast RP configuration

III. Configuration procedure

1) Configure Switch B

# Configure VLAN.

<SwitchB> system-view

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

[SwitchB] vlan 10

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[SwitchB-vlan10] port ethernet1/1/2

[SwitchB-vlan10] quit

[SwitchB] vlan 20

[SwitchB-vlan20] port ethernet1/1/3

[SwitchB-vlan20] quit

# Enable multicast routing.

[SwitchB] multicast routing-enable

# Configure the IP address of interface Loopback 0.

[SwitchB] interface loopback0

[SwitchB-LoopBack0] ip address 10.10.1.1 255.255.255.255

[SwitchB-LoopBack0] quit

# Configure the IP address of interface Loopback 10 and enable IGMP and PIM-SM.

[SwitchB] interface loopback10

[SwitchB-LoopBack10] ip address 10.1.1.1 255.255.255.255

[SwitchB-LoopBack10] igmp enable

[SwitchB-LoopBack10] pim sm

[SwitchB-LoopBack10] quit

# Configure the IP address of VLAN-interface 10 and enable IGMP and PIM-SM.

[SwitchB] interface Vlan-interface10

[SwitchB-Vlan-interface10] ip address 10.10.2.1 255.255.255.0

[SwitchB-Vlan-interface10] igmp enable

[SwitchB-Vlan-interface10] pim sm

[SwitchB-Vlan-interface10] undo shutdown

[SwitchB-Vlan-interface10] quit

# Configure the IP address of VLAN-interface 20 and enable IGMP and PIM-SM.

[SwitchB] interface Vlan-interface20

[SwitchB-Vlan-interface20] ip address 10.10.3.1 255.255.255.0

[SwitchB-Vlan-interface20] igmp enable

[SwitchB-Vlan-interface20] pim sm

[SwitchB-Vlan-interface20] undo shutdown

[SwitchB-Vlan-interface20] quit

# Configure OSPF.

[SwitchB] ospf

[SwitchB-ospf-1] area 0

[SwitchB-ospf-1-area-0.0.0.0] network 10.10.2.0 0.0.0.255

[SwitchB-ospf-1-area-0.0.0.0] network 10.10.3.0 0.0.0.255

[SwitchB-ospf-1-area-0.0.0.0] network 10.1.1.1 0.0.0.0

[SwitchB-ospf-1-area-0.0.0.0] network 10.10.1.1 0.0.0.0

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

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[SwitchB-ospf-1] quit

# Configure Switch A as its MSDP peer.

[SwitchB] msdp

[SwitchB-msdp] peer 10.21.1.1 connect-interface loopback 0

# Configure Originating RP.

[SwitchB-msdp] originating-rp loopback0

[SwitchB-msdp] quit

# Configure C-RP and BSR.

[SwitchB] pim

[SwitchB-pim] c-rp loopback 10

[SwitchB-pim] c-bsr loopback 10 30

2) Configure Switch A.

# Configure VLAN.

<SwitchA> system-view

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

[SwitchA] vlan 10

[SwitchA-vlan10] port ethernet1/1/2

[SwitchA-vlan10] quit

[SwitchA] vlan 20

[SwitchA-vlan20] port ethernet1/1/3

[SwitchA-vlan20] quit

# Enable multicast routing.

[SwitchA] multicast routing-enable

# Configure the IP address of interface Loopback 0.

[SwitchA] interface loopback0

[SwitchA-LoopBack0] ip address 10.21.1.1 255.255.255.255

[SwitchA-LoopBack0] quit

# Configure the IP address of interface Loopback 10 and enable IGMP and PIM-SM.

[SwitchA] interface loopback10

[SwitchA-LoopBack10] ip address 10.1.1.1 255.255.255.255

[SwitchA-LoopBack10] igmp enable

[SwitchA-LoopBack10] pim sm

[SwitchA-LoopBack10] quit

# Configure the IP address of interface VLAN-interface 20 and enable IGMP and

PIM-SM.

[SwitchA] interface Vlan-interface20

[SwitchA-Vlan-interface20] ip address 10.21.2.1 255.255.255.0

[SwitchA-Vlan-interface20] igmp enable

Operation Manual – MSDP

H3C S9500 Series Routing Switches Chapter 1 MSDP Configuration

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[SwitchA-Vlan-interface20] pim sm

[SwitchA-Vlan-interface20] undo shutdown

[SwitchA-Vlan-interface20] quit

# Configure the IP address of VLAN-interface 10 and enable IGMP and PIM-SM.

[SwitchA] interface Vlan-interface10

[SwitchA-Vlan-interface10] ip address 10.21.3.1 255.255.255.0

[SwitchA-Vlan-interface10] igmp enable

[SwitchA-Vlan-interface10] pim sm

[SwitchA-Vlan-interface10] undo shutdown

[SwitchA-Vlan-interface10] quit

# Configure OSPF route.

[SwitchA] ospf

[SwitchA-ospf-1] area 0

[SwitchA-ospf-1-area-0.0.0.0] network 10.21.2.0 0.0.0.255

[SwitchA-ospf-1-area-0.0.0.0] network 10.21.3.0 0.0.0.255

[SwitchA-ospf-1-area-0.0.0.0] network 10.1.1.1 0.0.0.0

[SwitchA-ospf-1-area-0.0.0.0] network 10.21.1.1 0.0.0.0

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

[SwitchA-ospf-1] quit

# Configure Switch B as its MSDP peer.

[SwitchA] msdp

[SwitchA-msdp] peer 10.10.1.1 connect-interface loopback 0

# Configure Originating RP.

[SwitchA-msdp] originating-rp loopback0

[SwitchA-msdp] quit

# Configure C-RP and BSR.

[SwitchA] pim

[SwitchA-pim] c-rp loopback 10

[SwitchA-pim] c-bsr loopback 10 30

1.4.3 MSDP Integrated Networking

I. Network requirement

In the following network, enable MSDP and configure an Anycast RP in PIM-SM

domain 1; establish MSDP peer relationship among RPs across PIM-SM domains; and

use MBGP between domains. For the related commands, refer to the part of MBGP

configuration examples in MBGP Configuration of the IP Multicast Volume.

Operation Manual – MSDP

H3C S9500 Series Routing Switches Chapter 1 MSDP Configuration

1-18

II. Network diagram

Switch G

Switch I

Switch H

PIM-SM 3

PIM-SM 4

PIM-SM 2

SRC A

SRC B

SRC C

Switch A

Switch B

Switch C

Switch D

Switch E

Switch F

Eth1/1/2

Eth1/1/3

Eth1/1/4

Eth1/1/2

Eth1/1/3

Eth:10.25.2.0

Eth:10.26.2.0 Eth:10.27.2.0

PIM-SM 1

Device Interface IP Address Device Interface IP Address

Switch A Loop0 10.25.1.1 Switch B Loop0 10.25.1.2

Loop10 10.1.1.1

Switch C Loop0 10.26.1.1 Switch D Loop0 10.27.1.1

Switch E Loop0 10.26.1.2 Switch F Loop0 10.27.1.2

Loop10 10.1.1.1 Loop10 10.1.1.1

Switch G Loop0 10.28.1.1 Switch H Loop0 10.29.1.1

Switch I Loop0 10.30.1.1

Figure 1-5 MSDP integrated networking

III. Configuration procedure

 Note:

The follow procedure details multicast configuration, but briefs router configuration.

1) Configure Switch A

# Configuring VLAN

<SwitchA> system-view

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

[SwitchA] vlan 10

[SwitchA-vlan10] port ethernet1/1/2

[SwitchA-vlan10] quit

[SwitchA] vlan 30

[SwitchA-vlan30] port ethernet1/1/3

Operation Manual – MSDP

H3C S9500 Series Routing Switches Chapter 1 MSDP Configuration

1-19

[SwitchA-vlan30] quit

# Enable multicast.

[SwitchA] multicast routing-enable

# Configure the IP address of interface Loopback 0 and enable PIM-SM.

[SwitchA] interface loopback0

[SwitchA-LoopBack0] ip address 10.25.1.1 255.255.255.255

[SwitchA-LoopBack0] pim sm

[SwitchA-LoopBack0] quit

# Configure the IP address of interface Loopback 10 and enable PIM-SM.

[SwitchA] interface loopback10

[SwitchA-LoopBack10] ip address 10.1.1.1 255.255.255.255

[SwitchA-LoopBack10] pim sm

[SwitchA-LoopBack10] quit

# Configure the IP address of VLAN-interface 30 and enable IGMP and PIM-SM.

[SwitchA] interface Vlan-interface30

[SwitchA-Vlan-interface30] ip address 10.25.2.3 255.255.255.0

[SwitchA-Vlan-interface30] igmp enable

[SwitchA-Vlan-interface30] pim sm

[SwitchA-Vlan-interface30] undo shutdown

[SwitchA-Vlan-interface30] quit

# Configure the IP address of VLAN-interface 10 and enable IGMP and PIM-SM.

[SwitchA] interface Vlan-interface10

[SwitchA-Vlan-interface10] ip address 10.25.3.1 255.255.255.0

[SwitchA-Vlan-interface10] igmp enable

[SwitchA-Vlan-interface10] pim sm

[SwitchA-Vlan-interface10] undo shutdown

[SwitchA-Vlan-interface10] quit

# Configure OSPF.

[SwitchA] ospf

[SwitchA-ospf-1] area 0

[SwitchA-ospf-1-area-0.0.0.0] network 10.25.2.0 0.255.255.255

[SwitchA-ospf-1-area-0.0.0.0] network 10.1.1.1 0.0.0.0

[SwitchA-ospf-1-area-0.0.0.0] network 10.25.1.1 0.0.0.0

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

[SwitchA-ospf-1] quit

# Configure BGP.

[SwitchA] bgp 100

[SwitchA-bgp] undo synchronization

[SwitchA-bgp] group in internal

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H3C S9500 Series Operating instructions

Brand: H3C

Model: S9500 Series

Type: Operating instructions

Ensure reliable multicast source discovery and data distribution across different domains using the Multicast Source Discovery Protocol (MSDP).
Implement Anycast RP for load sharing and redundancy, enabling multicast sources and receivers to select the nearest RP for efficient communication.

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H3C S9500 Series Operating instructions

H3C S9500 Series Operating instructions

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