5000 Series Layer 2/3 Managed Data Center Switch CLI Reference Guide
1089
network ipv6-address | prefix-length [route-map rm-name]
no network ipv6-address | prefix-length [route-map rm-name]
Parameters
ipv6-address
Network IPv6 prefixes.
prefix-length
An IPv4 address prefix in dotted notation.
route-map rm-name
(Optional) A route map can be used to set path attributes on the route.
Default
The default is Networks are not advertised.
Command Mode
IPv6 Address Family Config
11-96 rd
Use this command to specify the route distinguisher (RD) for a VRF instance that is used to create a
VPNv4 prefix. An RD creates routing and fowvarding tables and specifies the default route distinguisher
for a VPN. The RD is added to the beginning of the IPv4 prefixes to change them into globally unique
VPNv4 prefixes.
An RD is either:
•
2-byte ASN-related: Composed of an autonomous system number and an arbitrary number.
•
IP address-related: Composed of an IP address and an arbitrary number.
•
4-byte ASN related: Composed of an 4-byte autonomous system number and an arbitrary
number.
Note:
This command is effective only if BGP is running on the router. The RD for a VRF once configured
cannot be removed or changed. Forthis reason, this command does not have the no form. To change the
configured RD value, remove the VRF (using the
no ip vrf
command) and reconfigure the VRF.
rd route-distinguisher
Parameters
route-distinguisher
An 8-byte value to be added to an IPv4 prefix to create a VPNv4 prefix.
The RD value can be specified in either of the following formats:
•
16-bit AS number: your 32-bit value (Ex : 100 :11)
•
32-bit IPv4 address: your 16-bit value (Ex: 10.1.1.1 :22)
•
4-byte AS number: your 32-bit value (Ex : 66666 :33)
Default
The default is VRF not associated with any RD.
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