Huawei Quidway S3900 Series - Page 450

Operation Manual – Multicast Protocol
Quidway S3900 Series Ethernet Switches-Release 1510 Chapter 8 MSDP Configuration
Huawei Technologies Proprietary
8-16
Table 8-12 Display and debug MSDP configuration
Operation Command Description
Display the brief
information of MSDP
peer state
display msdp brief
Display the detailed
information of MSDP
peer status
display msdp peer-status
[ peer-address ]
Display the (S, G) state
learned from MSDP
peers
display msdp sa-cache
[ group-address |
[ source-address ] ]
[autonomous-system-number ]
Display the number of
sources and groups in
the MSDP cache
display msdp sa-count
[autonomous-system-number ]
Reset the TCP
connection with the
specified MSDP peer
reset msdp peer
peer-address
Clear the cached SA
messages
reset msdp sa-cache
[ group-address ]
Clear the statistics
information of the
specified MSDP peer
without resetting the
MSDP peer
reset msdp statistics
[ peer-address ]
You can execute the
display command in
any view.
II. Tracing the transmission path of an SA message over the network
You can use the msdp-tracert command in any view to trace the path along which the
multicast data travels from the multicast source to the destination receiver over the
network, so as to locate errors, if any.
Table 8-13 Trace the transmission path of an SA message over the network
Operation Command Description
Trace the
transmission
path of an
SA message
over the
network
msdp-tracert source-address
group-address rp-address
[ max-hops max-hops ]
[ next-hop-info | sa-info |
peer-info ]* [ skip-hops
skip-hops ]
You can execute the display
command in any view.
You can locate message loss and configuration errors by tracing the network path of
the specified (S, G, RP) entries. Once the transmission path of SA messages is
determined, correct configuration can prevent the flooding of SA messages.