Chapter 5 Card Intermixing For Mpls Support; Overview; Introduction To Card Intermixing; Card Intermixing Mechanism - H3C S9500 Series Operation Manual

Operation Manual – MPLS
H3C S9500 Series Routing Switches

Chapter 5 Card Intermixing for MPLS Support

5.1 Overview

5.1.1 Introduction to Card Intermixing

For S9500 series routing switches, only the interface cards with suffixes C, CA and CB
and VPLS service processor cards support MPLS function. If you want to enable MPLS
VPN function of S9500 switches, you need MPLS-supporting interface cards or VPLS
service processor cards. The intermixing feature is used to enable deployment of
MPLS VPN services on cards that do not support MPLS. S9500 routing switches
support various modes of MPLS VPN function and provide abundant and differentiated
MPLS VPN service to meet the differentiated needs of different users in the
performance, reliability, port utilization of MPLS VPN functions.
Note:
Unless otherwise specified, MPLS VPN services are processed by the
MPLS-supporting interface cards. In this manual, an interface card that supports
MPLS function is called MPLS card for short, and an interface card that does not
support MPLS function is called non-MPLS card for short.
The purpose of card intermixing is to enable the non-MPLS cards to support MPLS
function through the MPLS cards. Refer to the "NAT-URPF-VPLS" section in this
manual for the information on the processing of MPLS VPN through VPLS service
processor cards.

5.1.2 Card Intermixing Mechanism

The implementation mechanism for card intermixing is as follows:
The MPLS card and the non-MPLS card co-exist in the same switch;
Use the port of the non-MPLS card for the access to the service private network
side of the MPLS VPN ;
Redirect the port of the non-MPLS card through QACL, to redirect the received
packets to the specified MPLS card for processing;
The port of MPLS card is set as Loopback port automatically and the port type is
Trunk;
The access port of the non-MPLS card and the Loopback port of the MPLS card
belong to the same VLAN.
Chapter 5 Card Intermixing for MPLS Support
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