In general, each route is assigned a label (one label per route). When a large number of routes
exist, the Incoming Label Map (ILM) needs to maintain a great deal of in-segment entries. This
affects the capacity of the device.
The S9300 can allocate MPLS labels based on VPN instances, that is, allocate a label to each
VPN instance. All the routes in the VPN instance use the same label.
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3.3.6 Checking the Configuration
Prerequisite
The configurations of the VPN instance are complete.
Procedure
l Run the display ip vpn-instance verbose vpn-instance-name command to view the details
about the specified VPN instance.
l Run the display ip vpn-instance vpn-instance-name command to view the brief
information about the specified VPN instance.
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Example
After the configuration, run the display ip vpn-instance command, and you can see the brief
information about the VPN instance created on the local device, including the RD and creation
date. The following is an example:
<Quidway> display ip vpn-instance vpna
VPN-Instance Name RD Creation Time
vpna 100:1 2008/11/19 13:58:17
By running the display ip vpn-instance verbose command, you can see the detailed information
of the VPN instance created on the local device.
<Quidway> display ip vpn-instance verbose
Total VPN-Instances configured : 1
VPN-Instance Name and ID : vpna, 1
Create date : 2008/11/19 13:58:17
Up time : 1 days, 20 hours, 50 minutes and 17 seconds
Route Distinguisher : 100:1
Export VPN Targets : 111:1
Import VPN Targets : 111:1
Label policy : label per instance
The diffserv-mode Information is : uniform
The ttl-mode Information is : pipe
Export Route Policy : 2
Tunnel Policy : 1
Description : 111
Maximum Routes Limit : 100
Thresh Hold Value(%): 100
Interfaces : Vlanif5
3.4 Configuring Basic BGP/MPLS IP VPN
This section describes how to configure the basic BGP/MPLS IP VPN functions.
Quidway S9300 Terabit Routing Switch
Configuration Guide - VPN 3 BGP/MPLS IP VPN Configuration
Issue 03 (2009-08-20) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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