Figure 8-5 Troubleshooting flowchart: MSDP peers cannot generate correct (S, G) entries
Are MSDP
peers in the Up state?
Is SA cache enabled?
Ensure that MSDP peers
can receive SA
messages
MSDP peers cannot generate
correct (S, G) entries
Ensure that interfaces
are correctly configured
and peers are reachable
through unicast routes
Seek technical support
Enable SA cache
Remove or change the
configurations of the
export policies
Is fault
rectified?
Is fault
rectified?
Is fault
rectified?
Is fault
rectified?
End
No
No
No
No
No
Yes
Yes
Yes
Yes
No
No
No
Yes
Yes
Yes
Yes
Is the current MSDP
peer an RP?
Change the
configurations of the RP
or MSDP
Is fault
rectified?
No
No
Yes
Yes
Yes
Remove or change the
configurations of the
import policies
Is fault
rectified?
No
No
Yes
Remove or change the
configurations of the
import-source policies
Is fault
rectified?
Yes
Yes
No
Yes
Are import-source
policies configured on
the current MSDP
peer?
Are export
policies configured on MSDP
peers?
Have any SA
messages reached
MSDP peers?
Are import policies
configured on MSDP
peers?
No
Does current
MSDP peer receive multicast
data from the multicast
source?
No
Huawei AR2200-S Series Enterprise Routers
Troubleshooting 8 Multicast
Issue 01 (2012-01-06) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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