Feature History For Ra To Mpls Vpn; Restrictions For Ra To Mpls Vpn - Cisco 10000-2P2-2DC Software Configuration Manual

Feature History for RA to MPLS VPN

After adding these suboptions to the DHCP relay agent information option, the gateway address changes
to the relay agent's outgoing interface on the DHCP server side. The DHCP server uses this gateway
address to send reply packets back to the relay agent. The relay agent then removes the relay agent
information options and forwards the packets to the DHCP client on the correct VPN.
For more information, see the DHCP Relay Support for MPLS VPN Suboptions, Release 12.2(4)B
Note
feature module, located at the following URL.
http://www.cisco.com/en/US/docs/ios/12_2/12_2b/12_2b4/feature/guide/12b_dhc.html

Feature History for RA to MPLS VPN

Cisco IOS Release
12.2(4)BZ1
12.3(7)XI1
12.2(28)SB

Restrictions for RA to MPLS VPN

The RA to MPLS VPN feature has the following restrictions:
•
•
•
•
Cisco 10000 Series Router Software Configuration Guide
3-10
Description
This feature was integrated into Cisco IOS Release
12.2(4)BZ1.
This feature was integrated into Cisco IOS Release
12.3(7)XI1.
This feature was integrated into Cisco IOS Release
12.2(28)SB.
When BGP aggregates customer routes, the received packets that match the aggregate route require
an additional feedback in the PXF forwarding engine, which reduces performance.
RBE to MPLS VPN does not support MAC-layer access lists; only IP access lists are supported.
Before configuring DHCP relay support for MPLS VPN suboptions, you must configure standard
MPLS VPNs. For more information, see the
page 3-28 and the "Configuring the MPLS Core Network" section on page
Cisco IOS Switching Services Configuration Guide, Release 12.2, located at the following URL
http://www.cisco.com/en/US/docs/ios/12_2/switch/configuration/guide/fswtch_c.html.
The VPN ID is not used to control the distribution of routing information or to associate IP addresses
with VPN IDs in routing updates.
Chapter 3 Configuring Remote Access to MPLS VPN
"Configuring Virtual Private Networks" section on
Required PRE
PRE1
PRE2
PRE2
3-12, or see the
OL-2226-23