H3C S5500-EI - Setting the DSCP Value for MLD Messages; Configuring MLD SSM Mapping; Configuration Prerequisites

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Ste
p
Command Remarks
3. Configure the MLD host
tracking function globally.
host-tracking Disabled by default
Enabling the MLD host tracking function on an interface
Ste
p
Command Remarks
1. Enter system view.
system-view
N/A
2. Enter interface view.
interface interface-type interface-number
N/A
3. Enable the MLD host tracking
function on the interface.
mld host-tracking Disabled by default
Setting the DSCP value for MLD messages
IPv6 uses an eight-bit Traffic class field (called ToS in IPv4) to identify type of service for IP packets. As
defined in RFC 2474, the first six bits contains the DSCP priority for prioritizing traffic in the network and
the last two bits are reserved.
To set the DSCP value for MLD messages:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter MLD view.
mld N/A
3. Set the DSCP value for MLD
messages.
dscp dscp-value
Optional.
By default, the DSCP value in MLD
messages is 48.
Configuring MLD SSM mapping
Because of some possible restrictions, some receiver hosts on an SSM network might run MLDv1. To
provide SSM service support for these receiver hosts, you need to configure the MLD SSM mapping
feature on the last hop router.
Configuration prerequisites
Before you configure the MLD SSM mapping feature, complete the following tasks:
• Enable IPv6 forwarding and configure an IPv6 unicast routing protocol so that all devices in the
domain can be interoperable at the network layer.
• Configure basic MLD functions.