3com S7906E 설치 설명서

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Figure 1-11 Multi-hop EBGP interconnectivity 
AS 2
PE 1'
PE 3
ASBR
CE 1
PE 1"
CE 2
PE 2"
PE 4
PE 2'
AS 1
MD
VPN instasnce
Public instasnce
MT
P 1
P 2
MTI
MTI
ASBR
 
 
In the multi-hop EBGP interconnectivity approach, only one MD needs to be established for all the ASs, 
and public network multicast traffic between different ASs is transmitted within this MD.  
Multicast VPN Configuration Task List 
Complete these tasks to configure multicast VPN:  
Task 
Remarks 
Required 
Required 
Required 
Optional 
 
Configuring MD-VPN 
Configuration Prerequisites 
Before configuring MD-VPN, complete the following tasks: 
Configure any unicast routing protocol to provide intra-domain interoperability at the network layer.  
Configure MPLS L3VPN.  
Configure PIM (PIM-DM, PIM-SM or PIM-SSM).  
Before configuring MD-VPN, prepare the following data: 
VPN instance names and route distinguishers (RDs) 
Share-group addresses and an MTI numbers 
Enabling IP Multicast Routing in a VPN Instance  
Before configuring any MD-VPN functionality for a VPN, you must enable IP multicast routing in the 
VPN instance.  
Follow these steps to enable IP multicast routing in a VPN instance: 
To do... 
Use the command... 
Remarks 
Enter system view 
system-view 
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