Figure 8-4
Troubleshooting flowchart: the SPT on a PIM-SM network fails to forward data
Is PIM-SM enabled
on interfaces?
Enable PIM-SM on interfaces
End
No
Yes
Yes
No
Check the next hop along the
RPF path from the receiver's
DR to the multicast source
No
Yes
Yes
Remove the configurations of
the multicast boudnary
The RPT on a PIM-SM
network fails to forward data
Seek technical support
Do correct (*, G) entries
exist?
Ensure
that the current router is
an RP
Seek technical
support
Yes
No
No
Do correct (*, G) entries
exist?
Yes
No
No
Yes
Yes
Yes
Is a source-policy
configured?
Remove the configurations of the
source-policy or change the
configurations of the ACL
No
No
Yes
No
Yes
Is the RPF
route to the multicast
source available?
Rectify the fault of unicast
routes
Has the
downstream interface
received Join messages?
Is fault
rectified?
No
Yes
Yes
No
Rectify the interface fault
Yes
Yes
Is the
outbound interface
of the RPF route to the RP
a TE tunnel interface?
Change the outbound interface
of the RPF route to the
multicast source, ensuring that
it is not a TE tunnel interface
No
No
Is fault
rectified?
Is fault rectified?
Is the interface
that forwards multicast
data the receiver's DR?
Yes
No
Is fault rectified?
Is fault
rectified?
Is fault
rectified?
Re-check
the DR
Is a multicast boundary
configured on the
interface?
No
Huawei AR2200-S Series Enterprise Routers
Troubleshooting
8 Multicast
Issue 01 (2012-01-06)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
218