Zhone 2000 用户指南

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页码 296
138
2 0 0 0 - A 2 - G B 2 3 - 0 0
2
Press any key to continue. 
Show Multicast Routing Table
Type “M” on the Multicast Configuration menu to display the Multicast 
Routing Table. The IAD displays the following information:
( Source, Group )
( * , 230.253.84.168)Expires: 130s
Incoming interface: Null, RPF Neighbor 0.0.0.0
Outgoing interface list:
SDSL VPI/VCI 0*38
10/100BaseT Ethernet
(Source, Group)
( * , 237.152.172.93)Expires: 42s
Incoming interface: Null, RPF Neighbor 0.0.0.0
Outgoing interface list:
SDSL VPI/VCI 0*38
Since Multicast packets are forwarded according to the preceding information, 
this table is the key for IP Multicasting.
Field
Description
Source
IP address of the sender/source.
Group
IP address of the multicast group (Class D IP address).
State
Pruned or Expired. Pruned means that the state sent a Prune 
message to the upstream neighbor, asking them to stop sending 
Multicast Group messages to this interface. Expired means 
expiration time for the Prune state.
Expires
Expiration timer for the multicast routing state.
Static Mroute
The source is a user-assigned Multicast Routing Source.
Incoming interface
Incoming interface for the multicast packet.
RPF Neighbor
IP address of the upstream PIM neighbor.
Outgoing Interfaces
List of the outgoing interfaces to which the multicast packet 
will forward.
Pruned
If an outgoing interface is Pruned, this means that the interface 
received a PIM Prune message.