3Com 8807 Configuration Manual page 612

612 C 50: C
HAPTER ARD
Combination of Multiple
MPLS cards and Multiple
non-MPLS Cards
Combination of One
VPLS Card and Multiple
non-MPLS Cards
Combination of One
VPLS card and Multiple
MPLS Cards
Combination of One
VPLS card, One MPLS
Card and Multiple
non-MPLS Cards
I MPLS S
NTERMIXING FOR UPPORT
In card intermixing networking, non-MPLS cards can only be used for access at
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the private network side, and MPLS card must be used for access at the public
network side.
MPLS card has influence on the forwarding performance of a switch.
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Introduction to networking
The combination of multiple MPLS cards and multiple non-MPLS cards is similar to
"Combination of one MPLS card and multiple non-MPLS cards" in Section 5.4.4;
however, MPLS VPN services can be processed on the MPLS cards directly, without
the need of card intermixing configuration.
Configuration restrictions
It is not allowed to bind VLL and BGP/MPLS VPN to the same VLAN.
Introduction to networking
A VPLS card supports VPLS. However, a VPLS card does not have egress interfaces,
so another interface card must be used data forwarding.
Introduction to networking
VPLS cards can work with any type of interface cards to support VPLS.
Introduction to networking
Assume only non-MPLS cards were used at the beginning, and then one MPLS
card was added to support MPLS VPN services (VLL and BGP/MPLS VPN) through
card intermixing configuration. Then one VPLS card was added to process VPLS
services.
Configuration restrictions
The MPLS card is used to process MPLS VPN services. It is recommended to use
non-MPLS cards for the access of MPLS services at the private network side.