3com 8807 User Guide

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 51: MPLS VLL
CAUTION:
You can only change the CE range to a number larger than the existing one. 
For example, you can change a CE range from 10 to 20, rather than from 10 to 
5. The only way to change a CE range to a smaller number is to remove the CE 
and create a new one.
You can configure only one VLAN on the access side of each VPN private 
network. Each VLAN can have only one interface. And all the VLANs 
connecting to the interface must have IGMP disabled.
In Kompella MPLS L2VPN, the encapsulation type on the access side of each 
private network can be Ethernet access and VLAN access. Ethernet access is the 
default type. If you configure the encapsulation type as Ethernet access, the 
port link type in a private network VLAN is Access type; if you configure the 
encapsulation type as VLAN access, the port link type in a private network 
Configure the RD (route 
distinguisher) of the MPLS 
L2VPN 
route-distinguisher 
route-distinguisher 
Required. For an MPLS L2VPN, 
you must configure the RD 
before performing other 
configurations. An RD cannot 
be modified once it is 
configured. The only way to 
modify a configured RD is to 
remove the corresponding 
MPLS L2VPN and create 
another one. As for L2VPN, it 
is recommended that you 
assign a unique RD for each 
VPN. 
Configure the VPN-target of 
the MPLS L2VPN 
vpn-target 
vpn-target-ext-community [ 
import-extcommunity
export-extcommunity | 
both ] 
Required 
Configure the Layer 2 MTU 
(maximum transmission unit) 
of the VPN 
mtu mtu 
Optional. The same MTU 
value must be configured for 
all PEs in the same VPN. 
Create a CE or modify the CE 
Range of an existing CE 
ce name id id [ range range ] 
default-offset offset ] 
Required. Each CE created on 
a PE needs to uniquely 
correspond to one actual CE 
device connected to the PE. 
You need to specify a unique 
ID for these CEs. You can also 
specify the CE Range. It is 
desired that the CE ID begins 
with 1 and increases in step of 
1. 
Enter an existing CE 
ce name
Create connections between 
CEs 
connection [ ce-offset offset 
] { interface vlan-interface 
vlan-id } 
Required. When planning a 
VPN, you can specify CE IDs 
for CEs beginning with 1 and 
increasing in step of 1, and 
then establish connections by 
CE IDs. You can establish 
connections with CE Offset 
not provided for simplifying 
the configuration. In this case, 
the default CE Offset is used.
Table 566   Configure Kompella MPLS L2VPN
Operation Command Description