Multicast Quality Of Service; Optimize The E-Series For Multicast Traffic - Dell Force10 C150 Configuration Manual

• MTRACE Transit—when a Dell Force10 system is an intermediate router between the source and
destination in an MTRACE query, FTOS computes the RPF neighbor for the source, fills in the
request, and forwards the request to the RPF neighbor. While computing the RPF neighbor, static
mroutes and mBGP routes are preferred over unicast routes. When a Dell Force10 system is the last
hop to the destination, FTOS sends a response to the query.
Task
Print the network path that a multicast
packet takes from a multicast source to
receiver, for a particular group.
Figure 30-8. Tracing a Multicast Route
FTOS#mtrace 10.11.5.2 10.11.3.2 239.0.0.1
Type Ctrl-C to abort.
Mtrace from 10.11.5.2 to 10.11.3.2 via group 239.0.0.1
From source (?) to destination (?)
Querying full reverse path...
0 10.11.3.2
-1 10.11.3.1
-2 10.11.5.2

Multicast Quality of Service

Multicast Quality of Service
The Quality of Service (QoS) features available for unicast traffic can be applied to multicast flows. The
following QoS features are available:
• Policy-based QoS—Classifying, rate policing, and marking ingress traffic
• WRED
• See also

Optimize the E-Series for Multicast Traffic

Optimize the E-Series for Multicast Traffic
The default hardware settings for the E-series are for unicast applications like data centers and ISP
networks. This means that the E-Series gives priority to unicast data forwarding rather than multicast data
forwarding. For multicast intensive applications like trading, Dell Force10 recommends reconfiguring
some default settings.
You may do one or more for the following to optimize the E-Series for your multicast application:
• Tune the Central Scheduler for Multicast on page 676
Command Syntax
mtrace multicast-source-address
multicast-receiver-address multicast-group-address
PIM Reached RP/Core [default]
is supported only on platform:
Allocate More Buffer Memory for Multicast WRED on page
e
is supported only on platform:
Command Mode
EXEC Privilege
676.
e
Multicast Features | 675