Route-Tag - H3C S6800 Series Mce Command Reference

Syntax
route-distinguisher route-distinguisher
undo route-distinguisher
Default
No RD is specified for a VPN instance.
Views
VPN instance view
Predefined user roles
network-admin
Parameters
route-distinguisher: Specifies the RD for the VPN instance, a string of 3 to 21 characters in one of these
formats:
16-bit AS number:32-bit user-defined number. For example, 101:3.
•
• 32-bit IP address:16-bit user-defined number. For example, 192.168.122.15:1.
32-bit AS number:16-bit user-defined number, where the minimum value of the AS number is 65536.
•
For example, 65536:1.
Usage guidelines
RDs enable VPNs to use the same address space. An RD and an IPv4 prefix comprise a unique VPN IPv4
prefix. You can use RDs to identify different BGP VPN instances on an MCE.
To change the RD of a VPN instance, you must delete the RD with the undo route-distinguisher command,
and then use the route-distinguisher command to configure a new RD.
Examples
# Configure RD 22:1 for VPN instance vpn1.
<Sysname> system-view
[Sysname] ip vpn-instance vpn1
[Sysname-vpn-instance-vpn1] route-distinguisher 22:1

route-tag

Use route-tag to configure an external route tag for redistributed VPN routes.
Use undo route-tag to restore the default.
Syntax
route-tag tag-value
undo route-tag
Default
If the AS number is not greater than 65535, the first two octets of the default external route tag are
0xD000 and the last two octets are the local AS number. For example, if the local BGP AS number is 100,
the default value of the external route tag is 3489661028. If the AS number is greater than 65535, the
default external route tag is 0.
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