H3C Technologies H3C SecPath F1000-E - Manual (Page 383)

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Figure 10 PIM advanced configuration page
Table 6 describes PIM advanced configuration items.
Table 6 PIM advanced configuration items
Item Description
Auto-RP
Enable or disable auto-RP.
IMPORTANT:
Auto-RP announcement and discovery messages are addressed to the multicast
group addresses 224.0.1.39 and 224.0.1.40 respectively. With auto-RP enabled
on a device, the device can receive these two types of messages and record the
RP information carried in such messages.
Register checksum
Calculate the register message checksum based on the entire register messages or
the header parts.
IMPORTANT:
In view of information integrity of register messages in the transmission process,
you can configure the device to calculate the checksum based on the entire
register messages. However, to reduce the workload of encapsulating data in
register messages and for the sake of interoperability, this method of checksum
calculation is not recommended.
SSM policy
Configure the SSM group range.
You can define the multicast group range by selecting the check box and specifying
the ACL. If a group address falls into the SSM group range, multicast data is
delivered based on the PIM-SSM model; otherwise, it is delivered based on the
PIM-SM model.
Click the Select button to enter the page displaying the existing basic ACLs. Select
an ACL as needed and click Back to finish the operation and return to the PIM
advanced configuration page. In addition, in the basic ACL displaying page, you
can add, modify, or delete a basic ACL, or configure ACL acceleration for the ACL.
For more information, see ACL Configuration in the Firewall Web Configuration
Manual.
If the check box is not selected, the SSM group range is 232.0.0.0/8, no matter an
ACL is specified or not.
IMPORTANT:
z Make sure that the same SSM group range is configured on all devices in the
entire domain. Otherwise, multicast information cannot be delivered through
the SSM model.
z When a member of a multicast group in the SSM group range sends an
IGMPv1 or IGMPv2 report message, the device does not trigger a (*, G) join.