Check Rpf Paths And Multicast Paths - Huawei Quidway s3700 series Configuration Manual

Quidway S3700 Series Ethernet Switches
Configuration Guide - Multicast
Context
When data transmission is abnormal, you can ping related multicast addresses to check the
multicast routing.
Procedure
l
l
----End

9.7.2 Check RPF Paths and Multicast Paths

When a fault occurs during multicast data transmission, you can run the mtrace command to
check the RPF path and multicast path.
Context
When a fault occurs during data transmission, you can run the following commands in any view
to check RPF paths and multicast paths.
Procedure
l
l
l
l
----End
Issue 01 (2011-10-26)
Run the ping multicast [ -i interface-type interface-number | -c count | -h ttl-value | -m
time | -p pattern | -q | -s packet(s)ize | -t timeout | -tos tos-value | -v ]
any view to ping a reserved group address.
Run the ping multicast [ -c count | -h ttl-value | -m time | -p pattern | -q | -s packet(s)ize |
-t timeout | -tos tos-value | -v ]
NOTE
When checking the RPF path or multicast path from a source to a destination host, run the mtrace query-
policy [ acl-number ] command on the switch connected to hosts to configure the filtering policy for
queriers. The ACL defines the address scope of reliable queriers. Based on the ACL, the last-hop switch
refuses the IGMP-Tracert-Query messages sent by illegal queriers. Note the following when using this
command:
l This command is valid only for the last-hop switch, and the querier is not the last-hop switch.
l This command is used to filter only the IGMP-Tracert-Query message encapsulated in a unicast IP
packet.
l This command is not applicable to the trace that is initiated by the local querier.
Run the mtrace [ -ur resp-dest | -l [ stat-times ] [ -st stat-int ] | -m max-ttl | -q nqueries | -
ts ttl | -tr ttl | -v | -w timeout | -vpn-instance vpn-name ] * source source-address command
in any view to check the RPF path from a source to a querier.
Run the mtrace -g group [ { -mr | -ur resp-dest } | -l [ stat-times ] [ -st stat-int ] | -m max-
ttl | -q nqueries | -ts ttl | -tr ttl | -v | -w timeout | -vpn-instance vpn-name ] * source source-
address command in any view to check the multicast path from a source to a querier.
Run the mtrace { -gw last-hop-router | -d } -r receiver [ -ur resp-dest | -a source-ip-
address | -l [ stat-times ] [ -st stat-int ] | -m max-ttl | -q nqueries | -ts ttl | -tr ttl | -v | -w
timeout | -vpn-instance vpn-name ] * source source-address command in any view to
check the RPF path from a source to a destination host.
Run the mtrace { -gw last-hop-router | -b | -d } -r receiver -g group [ { -mr | -ur resp-
dest } | -a source-ip-address | -l [ stat-times ] [ -st stat-int ] | -m max-ttl | -q nqueries | -ts
ttl | -tr ttl | -v | -w timeout | -vpn-instance vpn-name ] * source source-address command
in any view to check the multicast path from a source to a destination host.
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9 IPv4 Multicast Routing Management
*
host command in any view to ping a common group address.
*
host command in
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