3Com MSR 50 Series Configuration Manual page 1437

Creating a CE Connection
CE ID is used for identifying a CE uniquely in a VPN. To facilitate the configuration,
it is recommended to encode the CE IDs in continuous natural numbers starting
from 1.
The CE range of a CE indicates the maximum number of CEs that the CE can
connect with. You can configure a CE range greater than what is required based
on your estimate of the future VPN expansion if the label resources are abundant
(they are usually abundant). This can reduce the configuration modification
required when CEs are added in the VPN in future.
When creating a CE connection, if you do not specify the CE offset, the following
are true:
The CE offset defaults to 1 for the first connection of the CE.
■
The CE offset is that of the former connection plus 1 for any connection of the
■
CE other than the first one.
When planning a VPN, you are recommended to encode CE IDs in incremental
■
sequence starting from 1. When configuring connections, you are
recommended to adopt the sequence of the CE IDs, in which case you can
omit the ce-offset portion from most of the required commands. This
simplifies the configuration.
Note that you can only increase the CE range. For example, if the original CE
range is 10, you can increase it to 20, but cannot reduce it to 5. The only way to
reduce the CE range is to delete the CE and re-create it.
When you increase the CE range, for example, from 10 to 20, the system does not
release the original label block and then re-apply for a new label block of the size
of 20. Instead, the system applies for a supplementary label block of the size of
10. This ensures that the existing services will not be interrupted.
Follow these steps to create a CE connection:
To do...
Enter system view
Enter MPLS L2VPN view
Create a CE for a VPN and
enter MPLS L2VPN CE
view
Create a Kompella
connection
n
The command for creating a CE and entering MPLS L2VPN CE view is also available
in MPLS L2VPN CE view.
Configuring Kompella MPLS L2VPN
Use the command...
system-view
mpls l2vpn vpn-name
ce ce-name [ id ce-id [ range ce-range ]
[ default-offset ce-offset ] ]
connection [ ce-offset id ] interface
interface-type interface-number
[ tunnel-policy tunnel-policy-name ]
1437
Remarks
-
-
Required
Required