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Configuration Guide - IP Multicast

CloudEngine 12800 and 12800E V200R005C10

This document describes the configurations of IP multicast, including IP multicast basics, IGMP, MLD, PIM (IPv4), PIM (IPv6), MSDP, multicast VPN, multicast route management (IPv4), multicast route management (IPv6), IGMP snooping, MLD snooping, static multicast MAC address, multicast VLAN, multicast network management.
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Configuring MSDP Peers

Configuring MSDP Peers

Context

An MSDP peer relationship is identified by the addresses of the local and remote MSDP peers. You must create an MSDP peer relationship on both the local and remote ends.

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 peer peer-address connect-interface interface-type interface-number

    MSDP peers are created.

    • peer-address: specifies the address of the remote MSDP peer.

    • interface-type interface-number: specifies the local interface connected to the remote MSDP peer.

  4. (Optional) Run peer peer-address description text

    The description of a remote MSDP peer is added.

    This configuration helps to differentiate remote MSDP peers and manage the connections to the remote MSDP peers.

  5. (Optional) Run timer retry interval

    The interval at which MSDP peers retry to set up a connection with each other is set.

    By default, the interval for retrying to set up an MSDP peer relationship is 30 seconds. A TCP connection needs to be quickly established between MSDP peers in one of the following situations:

    • An MSDP peer is created.
    • The disconnected MSDP peers need to be reconnected.
    • A faulty MSDP peer attempts to restore works.

    You can run this command to adjust the interval at which MSDP peers retry to set up a connection.

  6. (Optional) Run peer peer-address hold-time-interval holdtime-value

    The holdtime timer value for the entry of an MSDP peer relationship is set.

    By default, the holdtime timer value for the entry of an MSDP peer relationship is 90s. After an MSDP peer relationship is established, an MSDP peer entry is created, and a holdtime timer is started for the entry. The holdtime timer is reset each time a message is received from the MSDP peer and deleted when the relationship is torn down.

  7. (Optional) Run peer peer-address keepalive-interval keepalive-time-value

    The keepalive timer value for an MSDP peer is set.

    By default, the keepalive timer value for an MSDP peer is 60s. After an MSDP peer relationship is established, both ends send keepalive messages, and a keepalive timer is started for the MSDP peer. The keepalive timer is reset each time the local end sends a keepalive message upon timer expiration and deleted when the relationship is torn down. The keepalive timer value set on the local end must be less than the holdtime timer value set by the peer hold-time-interval command on the peer end for the corresponding MSDP peer relationship entry.

  8. (Optional) Configure an MSDP authentication mode.

    To improve the security of a TCP connection, MSDP supports two authentication modes: message digest algorithm 5 (MD5) and keychain. MD5 authentication and keychain authentication are mutually exclusive on an MSDP peer. You must configure the same password on both ends in MD5 authentication or configure the same encryption algorithm and password on both ends in keychain authentication. Otherwise, the TCP connection cannot be set up.

    NOTE:

    MD5 is not a secure authentication algorithm. For security purposes, you are advised to use the more secure Keychain algorithm for MSDP authentication.

    • Run peer peer-address password { cipher cipher-password | simple simple-password }

      MSDP MD5 authentication is configured.

      If simple is selected, the password is saved in the configuration file in plain text. This brings security risks. It is recommended that you select cipher to save the password in cipher text.

    • Run peer peer-address keychain keychain-name

      MSDP keychain authentication is configured.

      keychain-name in this command is defined in the keychain command. For details, see "Keychain Configuration" in the CloudEngine 12800 and 12800E Series Switches Configuration Guide-Security.

  9. (Optional) Run shutdown peer-address

    The session with the remote MSDP peer is closed.

    After the session with the remote MSDP peer is closed, SA messages are not exchanged between the MSDP peers. The configuration, however, is saved. You can run the undo shutdown peer-address command to set up a session with the remote MSDP peer and to reestablish a TCP connection.

  10. Run commit

    The configuration is committed.

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Updated: 2019-04-20

Document ID: EDOC1100074724

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