Chapter 30
| Multicast Routing Commands
General Multicast Routing
– 1016 –
This example lists all entries in the multicast table in summary form:
Console#show ip mroute summary
IP Multicast Forwarding is enabled
IP Multicast Routing Table (Summary)
Flags: F – Forwarding, P - Pruned
Group Source Source Mask Interface Owner Flags
--------------- --------------- --------------- ---------- ------- ------
224.0.17.17 192.168.2.1 255.255.255.255 VLAN2 PIM-DM F
Total Entry is 1
Console#
IPv6 Commands
ipv6 multicast-routing This command enables IPv6 multicast routing. Use the no form to disable IP
multicast routing.
Syntax
[no] iv6p multicast-routing
Default Setting
Disabled
Command Mode
Global Configuration
Command Usage
◆ This command is used to enable IPv6 multicast routing globally for the router.
A multicast routing protocol also needs to be enabled on the interfaces that
Incoming Interface
Interface leading to the upstream neighbor.
PIM creates a multicast routing tree based on the unicast routing table.
If the related unicast routing table does not exist, PIM will still create a
multicast routing entry, but displays “Null” for the upstream interface to
indicate that the unicast routing table is not valid. This field may also
display “Register” to indicate that a pseudo interface is being used to
send or receive PIM-SM register packets.
RPF neighbor
IP address of the multicast router immediately upstream for this group.
Outgoing interface
list and flags
The interface(s) on which multicast subscribers have been recorded.
The flags associated with each interface indicate:
◆
F (Register flag) - This device is registering for a multicast source.
◆
P (Pruned) - This route has been terminated.
◆
L (Local) - Downstream interface has received IGMP report
message from host in this subnet.
Table 195: show ip mroute - display description (Continued)
Field Description
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