Configuring A Static Multicast Route; Establishing The Configuration Task - Huawei Quidway s3700 series Configuration Manual

Quidway S3700 Series Ethernet Switches
Configuration Guide - Multicast
Testing Multicast Routing
When a fault occurs on a multicast network, you can run the ping multicast and mtrace
commands to test the connectivity of the network.
The ping multicast command is used to check whether a group is reachable and to implement
the following functions:
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The mtrace command can be used to trace the following paths and output the hop information:
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9.3 Configuring a Static Multicast Route

Static multicast routes have the functions of changing RPF routes and connecting RPF routes.

9.3.1 Establishing the Configuration Task

Before configuring static multicast routes, familiarize yourself with the applicable environment,
pre-configuration tasks, and required data. This can help you complete the configuration task
quickly and accurately.
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number of downstream nodes of a single forwarding entry. Limiting the number of
downstream nodes according to the actual networking and service performance can reduce
the processing pressure of a switch and control the multicast service range.
Pinging a reserved group address
This is used to check whether a member of a group exists in the directly connected network
segment, and is not exclusive for multicast networks. You can ping devices that use
multicast addresses.
Pinging a common group address
This function is applied as follows:
– To generate multicast traffic and trigger the creation of multicast routing entries: Based
on multicast routing information, you can check whether a protocol runs normally,
determine whether the network can carry multicast services, or test the forwarding
performance.
– To check the members of related groups in the network: Based on the ICMP-Echo-
Reply messages received from destination hosts, the switch on which the command is
used checks the members of the groups in the network, and calculates response time
and the TTL from the switch to members. You can run the command repeatedly in a
certain interval to calculate the network delay and route flapping.
RPF path from a source to a querier
Multicast path from a source to a querier
RPF path from a source to a destination host
Multicast path from a source to a destination host
NOTE
You can ping multicast addresses by using the Network Quality Analysis (NQA) test instances or related
commands. For detailed configurations of NQA test instances, refer to the chapter " NQA Configuration
" in Quidway S3700 Series Ethernet Switches Configuration Guide - Network Management.
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