H3C Technologies H3C S12500-X Series Switches - Manual (Page 351)

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Configuring routing on an MCE
An MCE implements service isolation through route isolation. MCE routing configuration includes the
following:
• MCE-VPN site routing configuration
• MCE-PE routing configuration
On a 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.
Before you configure routing on an MCE, complete the following tasks:
• On the MCE, 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 an MCE and a VPN site
You can configure static routing, RIPng, OSPFv3, IPv6 IS-IS, or EBGP between an MCE and a VPN site.
Configuring static routing between an MCE and a VPN site
An MCE can reach a VPN site through an IPv6 static route. IPv6 static routing on a traditional CE is
globally effective and does not support address overlapping among VPNs. An MCE supports binding an
IPv6 static route with an IPv6 VPN instance, so that the IPv6 static routes of different IPv6 VPN instances
can be isolated from each other.
To configure IPv6 static routing between an MCE and a VPN site:
Step Command Remarks
1. Enter system view. system-view N/A
2. Configure an IPv6 static
route for an IPv6 VPN
instance.
ipv6 route-static vpn-instance s-vpn-instance-name
ipv6-address prefix-length { interface-type
interface-number [ next-hop-address ] |
nexthop-address [ public ] | vpn-instance
d-vpn-instance-name nexthop-address } [ permanent ]
[ preference preference-value ] [ tag tag-value ]
[ description description-text ]
Use either command
as needed.
Perform this
configuration on the
MCE. On a VPN site,
configure normal IPv6
static routes.
3. (Optional.) Configure
the default preference
for IPv6 static routes.
ipv6 route-static default-preference
default-preference-value
The default preference
for IPv6 static routes is
60.
Configuring RIPng between an MCE and a VPN site
A RIPng process belongs to the public network or a single IPv6 VPN instance. If you create a RIPng
process without binding it to an IPv6 VPN instance, the process belongs to the public network. By
configuring RIPng process-to-IPv6 VPN instance bindings on a MCE, you allow routes of different VPNs
to be exchanged between the MCE and the sites through different RIPng processes, ensuring the
separation and security of IPv6 VPN routes.
For more information about RIPng, see Layer 3—IP Routing Configuration Guide.
To configure RIPng between an MCE and a VPN site: