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Configuration Guide - IP Multicast

S7700 and S9700 V200R010C00

This document describes IP multicast basics and how to configure IP multicast features, including IGMP/MLD, PIM (IPv4&IPv6), MSDP, multicast VPN, Layer 3 multicast CAC, Layer 2 multicast CAC, IGMP/MLD snooping, and multicast VLAN, IPv4&IPv6 multicast route management, static multicast MAC address, multicast network.
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Configuring the Rule for Filtering SA Messages

Configuring the Rule for Filtering SA Messages

Context

By default, a switch forwards all SA messages that pass RPF checks to MSDP peers. You can configure a filtering rule to determine the SA messages that can be created, accepted, or forwarded, so as to control SA message transmission between MSDP peers.

  • After you configure a filtering rule for creating SA messages, the switch filters the (S, G) entries to be advertised in SA messages based on the rule and determines whether to advertise the multicast source information.
  • After you configure a filtering rule for accepting or forwarding SA messages, the switch filters the (S, G) entries advertised in received SA messages based on the rule and determines whether to accept or forward the multicast source information.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    msdp [ vpn-instance vpn-instance-name ]

    The MSDP view is displayed.

  3. Run:

    import-source [ acl { acl-number | acl-name } ]

    A filtering rule for creating SA messages is configured.

    NOTE:

    When configuring an ACL rule, use the permit keyword to configure the switch to create SA messages with specified (S, G) entries. If no rule is configured in the ACL, SA messages do not advertise information about any local active source.

  4. Run:

    peer peer-address sa-policy { import | export } [ acl { advanced-acl-number | acl-name } ]

    A filtering rule for accepting or forwarding SA messages is configured.

    NOTE:

    When configuring an ACL rule, use the permit keyword to configure the switch to accept or forward only SA messages with (S, G) entries that match the ACL rule. If no rule is configured in the ACL, the switch does not accept or forward any SA messages with (S, G) entries.

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Updated: 2019-08-21

Document ID: EDOC1000141903

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