No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

CX11x, CX31x, CX710 (Earlier Than V6.03), and CX91x Series Switch Modules V100R001C10 Configuration Guide 13

The documents describe the configuration of various services supported by the CX11x&CX31x&CX91x series switch modules The description covers configuration examples and function configurations.
Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Configuring Multicast Route Management (IPv6)

Configuring Multicast Route Management (IPv6)

This section describes the detailed procedure for configuring multicast route management (IPv6).

Configuring IPv6 Multicast Load Splitting

You can configure IPv6 multicast load splitting to enable the device to choose more than one equal-cost routes during the RPF check.

Pre-configuration Tasks

Before configuring IPv6 multicast load splitting, complete the following tasks:

  • Configuring an IPv6 unicast routing protocol to ensure normal unicast routing on the IPv6 network
  • Globally enabling Layer 3 IPv6 multicast routing (using the multicast ipv6 routing-enable command in the system view)

Context

By default, if there are multiple equal-cost routes to a multicast source, the device selects the route with the highest next-hop address as the RPF route. After multicast load splitting is configured, the device uses the specified load splitting policy to distribute multicast data among multiple paths. This function improves quality of multicast forwarding.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    multicast ipv6 load-splitting { balance-ucmp | group | source | source-group | stable-preferred }

    Multicast load splitting is configured.

    The keywords in the command specify different multicast load splitting policies:

    • balance-ucmp: load splitting that ensures even load distribution among forwarding paths. This policy selects (*, G) or (S, G) entries according to forwarding capabilities of outbound interfaces in the equal-cost routes.

    • group: load splitting based on group addresses. This policy applies to the scenarios where one multicast source sends data to multiple groups.

    • source: load splitting based on source addresses. This policy applies to the scenarios where one group receives data from multiple sources.

    • source-group: load splitting based on source addresses and group addresses. This policy applies to the scenarios with multiple sources and multiple groups.

    • stable-preferred: load splitting that ensures stable multicast forwarding. This policy applies to networks with stable multicast services.

      If the stable-preferred load splitting policy is used, the switch modules automatically adjusts traffic on equal-cost routes when equal-cost routes are added or deleted. When multicast routing entries are deleted or load splitting weights on interfaces are changed, the switch modules does not automatically adjust the traffic on the equal-cost routes.

  3. Run:

    commit

    The configuration is committed.

Checking the Configuration

After IPv6 multicast load splitting is configured, run the following command to check whether the loading splitting policy is configured successfully.

  • Run the display multicast ipv6 routing-table [ ipv6-source-address [ mask ipv6-source-mask-length ] | ipv6-group-address [ mask ipv6-group-mask-length ] | incoming-interface { interface-type interface-number | register } | outgoing-interface { exclude | include | match } { interface-type interface-number | register | none } ] * [ outgoing-interface-number [ number ] ] command to view the IPv6 multicast routing table.

Configuring the IPv6 Multicast Boundary

The IPv6 multicast boundary restricts the scope of multicast forwarding.

Pre-configuration Tasks

Before configuring IPv6 multicast load splitting, complete the following tasks:

  • Configuring an IPv6 unicast routing protocol to ensure normal unicast routing on the IPv6 network
  • Globally enabling Layer 3 IPv6 multicast routing (using the multicast ipv6 routing-enable command in the system view)

Context

To restrict the forwarding of multicast packets sent to a multicast group within a range on an IPv6 multicast network, configure the IPv6 multicast boundary on interfaces. Then multicast packets sent to the group cannot be forwarded through the boundary interfaces.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    interface interface-type interface-number

    The interface view is displayed.

  3. On an Ethernet interface, run:

    undo portswitch

    The interface is switched to Layer 3 mode.

    By default, an Ethernet interface works in Layer 2 mode.

    If an Ethernet interface already has Layer 2 configuration, this command fails to be executed on the interface. Before running this command on the interface, delete all the Layer 2 configuration of the interface.

    If many Ethernet interfaces need to be switched to Layer 3 mode, run the undo portswitch batch interface-type { interface-number1 [ to interface-number2 ] } &<1-10> command in the system view to switch these interfaces to Layer 3 mode in batches.

  4. Run:

    multicast ipv6 boundary ipv6-group-address ipv6-group-mask-length

    The IPv6 multicast boundary is configured on the interface.

  5. Run:

    commit

    The configuration is committed.

Checking the Configuration

After configuring the IPv6 multicast boundary on interfaces, check the IPv6 multicast routing table and information about the multicast boundary on the interfaces to verify that the IPv6 multicast network can operate normally.

  • Run the display multicast ipv6 routing-table [ ipv6-source-address [ mask ipv6-source-mask-length ] | ipv6-group-address [ mask ipv6-group-mask-length ] | incoming-interface { interface-type interface-number | register } | outgoing-interface { { exclude | include | match } { interface-type interface-number | register | none } } ] * [ outgoing-interface-number [ number ] ] command to check the IPv6 multicast routing table.
  • Run the display multicast ipv6 boundary [ ipv6-group-address [ ipv6-group-mask-length ] ] [ interface interface-type interface-number ] command to check information about the IPv6 multicast boundary configured on an interface.

Disabling Soft Forwarding for IPv6 Multicast Packets

Disabling soft forwarding for multicast packets on a multicast switch modules prevents packet loss and disorder.

Pre-configuration Tasks

Before disabling soft forwarding for IPv6 multicast packets, complete the following tasks:

  • Configuring an IPv6 unicast routing protocol to ensure normal unicast routing on the IPv6 network
  • Globally enabling Layer 3 IPv6 multicast routing (using the multicast ipv6 routing-enable command in the system view)

Context

In most cases, the switch modules forwards packets based on software before the hardware forwarding is completed. After that, the forwards packets based on hardware. A Fast Channel Change (FCC) device can quickly forward packets based on hardware, not software.

When the switch modules works together with an FCC device, soft forwarding for IPv6 multicast packets must be disabled on the switch modules to prevent packet loss and disorder caused by the low forwarding speed and first packet cache mechanism of soft forwarding.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    multicast ipv6 cpu-forward disable

    Soft forwarding is disabled for IPv6 multicast packets.

    By default, soft forwarding for IPv6 multicast packets is enabled.

  3. Run:

    commit

    The configuration is committed.

Translation
Download
Updated: 2019-12-13

Document ID: EDOC1000041694

Views: 61073

Downloads: 3623

Average rating:
This Document Applies to these Products
Related Version
Related Documents
Share
Previous Next