Configuring routing on an mce, Configuration prerequisites, Configuring routing between mce and vpn site – H3C Technologies H3C SR8800 User Manual
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NOTE:
•
If you start OSPF but do not configure the router ID, the system will automatically elect one. However, the
same election rules produce the same router ID. Therefore, H3C recommends that you configure the
router ID when starting an OSPF process. For the election rules, see
Layer 3—IP Routing Configuration
Guide.
•
If you configure multiple OSPF VPN instances but do not configure the route tag, the system will
automatically create one based on the AS number configured. If you do not configure BGP, the tag will
be 0. However, the same calculation rule produces the same tag, and hence the same tag will be created
for multiple OSPF VPN instances on the same PE or PEs with the same AS number. Therefore, H3C
recommends configuring different tags for different OSPF VPN instance.
Configuring routing on an MCE
MCE implements service isolation through route isolation. MCE routing configuration includes:
•
MCE-VPN site routing configuration
•
MCE-PE routing configuration
On the PE in an MCE network environment, disable routing loop detection to avoid route loss during
route calculation and disable route redistribution between routing protocols to save system resources.
Configuration prerequisites
Before you configure routing on an MCE, complete the following tasks:
•
Configure VPN instances, and bind the VPN instances with the interfaces connected to the VPN
sites and those connected to the PE.
•
Configure the link layer and network layer protocols on related interfaces to ensure IP connectivity.
Configuring routing between MCE and VPN site
Configuring static routing betweem MCE and VPN site
An MCE can reach a VPN site through a static route. Static routing on a traditional CE is globally
effective and thus does not support address overlapping among VPNs. An MCE supports binding a static
route with a VPN instance, so that the static routes of different VPN instances can be isolated from each
other.
To configure static routing between MCE and VPN site:
Step Command
Remarks
1.
Enter system view.
system-view
N/A