14-25
mask
: Network mask, in the format of X.X.X.X.
mask-length
: Length of the network mask, in the range 0 to 32.
as-path-acl as-path-acl-number
: Specifies the AS_PATH filtering list. The
as-path-acl-number
argument ranges from 1 to 256.
regexp as-path-regexp
: Specifies the AS_PATH regular expression.
Description
Use the
reset bgp vpn-instance
flap-info
command to clear the route flap history information about
BGP peers of a VPN instance.
Examples
# Clear route flap history information about BGP peer 2.2.2.2 of VPN instance vpn1.
<Sysname> reset bgp vpn-instance vpn1 2.2.2.2 flap-info
route-distinguisher
Syntax
route-distinguisher
route-distinguisher
View
VPN instance view
Default Level
2: System level
Parameters
route-distinguisher
: Route distinguisher (RD) for the VPN instance, a string of 3 to 21 characters in
either of the following three formats:
z
16-bit AS number:32-bit user-defined number. For example, 101:3.
z
32-bit IP address:16-bit user-defined number. For example, 192.168.122.15:1.
z
32-bit AS number:16-bit user-defined number, where the AS number must not be less than 65536.
For example, 65536:1.
Description
Use the
route-distinguisher
command to configure a route distinguisher (RD) for a VPN instance.
An RD is used to create the routing and forwarding table of a VPN. By prefixing an RD to an IPv4
prefix, you make the VPN IPv4 prefix unique globally.
z
No RD is configured by default; you must configure an RD for each VPN instance.
z
A VPN instance takes effect only after you configure an RD for it.
z
Once you configure an RD for a VPN, you cannot remove the association.
z
You cannot change an RD directly; you can only delete the VPN instance, re-create the VPN
instance, and then re-configure a new RD.