Dell PowerConnect M6348 Configuration Manual
Download Configuration manual of Dell PowerEdge M520 Computer Hardware, Desktop for Free or View it Online on All-Guides.com.
Brand: Dell
Category: Computer Hardware , Desktop , Network Hardware , Network Router , Server , Switch
Type: Configuration manual
Model: Dell PowerEdge M520 , Dell PowerEdge M820 Systems , Dell PowerConnect M6348
Pages: 158 (1.54 Mb)
146 Multicast
• Use the following command to display interface parameters when IGMP Proxy is enabled:
console#show ip igmp-proxy interface
• Use this command to display information about multicast groups that IGMP proxy reported. It
displays a table of entries with the following as the fields of each column.
console#show ip igmp-proxy groups
• Use the following command to display information about multicast groups that IGMP proxy reported.
It displays a table of entries with the following as the fields of each column:
console#show ip igmp-proxy groups detail
DVMRP
The Distance Vector Multicast Routing Protocol (DVMRP) is one of several multicast routing protocols
you can configure on the switch (PIM-SM and PIM-DM are the others). Note that only one multicast
routing protocol (MRP) can be operational on a router at any time.
DVMRP is an interior gateway protocol; i.e., it is suitable for use within an autonomous system, but not
between different autonomous systems.
DVMRP is based on RIP: it forwards multicast datagrams to other routers in the AS and constructs a
forwarding table based on information it learns in response. More specifically, it uses this sequence.
• A new multicast packet is forwarded to the entire multicast network, with respect to the time-to-live
(TTL) of the packet.
• The TTL restricts the area to be flooded by the message.
• All routers that do not have members on directly-attached subnetworks send back
Prune messages
to
the upstream router.
• The branches that transmit a prune message are deleted from the delivery tree.
• The delivery tree which is spanning to all the members in the multicast group, is constructed in the
form of a DVMRP forwarding table.