Usage
Information
Mtrace is an IGMP protocol based on the Multicast trace route facility and implemented
according to the IETF draft “A
trace route
facility for IP Multicast” (draft-fenner-traceroute-
ipm-01.txt). FTOS supports the Mtrace client and transmit functionality.
As an Mtrace client, FTOS transmits Mtrace queries, receives, parses, and prints out the
details in the response packet received.
As an Mtrace transit or intermediate router, FTOS returns the response to Mtrace queries.
After receiving the Mtrace request, FTOS computes the RPF neighbor for the source, fills in the
request and the forwards the request to the RPF neighbor. While computing the RPF neighbor,
the static mroute and mBGP route is preferred over the unicast route.
queue backplane multicast
Reallocate the amount of bandwidth dedicated to multicast traffic.
E-Series
Syntax
queue backplane multicast bandwidth-percentage
percentage
Parameters
percentage
Enter the percentage of backplane bandwidth to be dedicated to
multicast traffic. The range is 5 to 95.
Defaults
80% of the scheduler weight is for unicast traffic and 20% is for multicast traffic by default.
Command Modes
CONFIGURATION
Command History
Version 7.7.1.0
Introduced on the E-Series.
Example
FTOS(conf)#queue backplane multicast bandwidth-percent 30
FTOS(conf)#exit
FTOS#00:14:04: %RPM0-P:CP %SYS-5-CONFIG_I: Configured from
console by
console
show run | grep bandwidth
queue backplane multicast bandwidth-percent 30
FTOS#
Related
Commands
show queue backplane multicast
– displays the backplane bandwidth configuration describing
how much bandwidth is dedicated to multicast versus unicast.
restrict-flooding
Prevent Layer 2 multicast traffic from being flooded on ports below a specified link speed.
E-Series TeraScale
Syntax
restrict-flooding multicast min-speed
min-speed
Parameters
min-speed
min-
speed
Enter the minimum link speed that a port must have to receive flooded
multicast traffic. The range is 1000.
Defaults
none
1122
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