MPLS

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Based on IP routing and control protocols, MPLS is a technology that provides connection-oriented switching for the network layer. MPLS uses short labels of fixed length to encapsulate packets at different link layers, and switches tags based on the encapsulated labels.
MPLS has two planes: control plane and forwarding plane. The control plane is connectionless, featuring powerful and flexible routing functions to meet network requirements of various new applications. It is mainly responsible for label distribution, setup of label forwarding tables, and setup and removal of label switched paths (LSPs). The forwarding plane is also called the data plane. It is connection-oriented and supports Layer 2 networks such as ATM and Ethernet networks. The forwarding plane adds or deletes the labels of IP packets, and forwards the packets according to the label forwarding table.

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MPLS
Based on IP routing and control protocols, MPLS is a technology that provides connection-oriented switching for the network layer. MPLS uses short labels of fixed length to encapsulate packets at different link layers, and switches tags based on the encapsulated labels. MPLS has two planes: control plane and forwarding plane. The control plane is connectionless, featuring powerful and flexible routing functions to meet network requirements of various new applications. It is mainly responsible for label distribution, setup of label forwarding tables, and setup and removal of label switched paths (LSPs). The forwarding plane is also called the data plane. It is connection-oriented and supports Layer 2 networks such as ATM and Ethernet networks. The forwarding plane adds or deletes the labels of IP packets, and forwards the packets according to the label forwarding table.

Support for MPLS and requirement for a license on an S series switch
Support for MPLS VPN on S series switches (except the S1700) is as follows: - Switch model - Minimum version supporting MPLS VPN - S5710EI - V200R002 (The S5710EI is unavailable in V200R006 and later versions.) - S5700HI - V200R001 (The S5700HI is unavailable in V200R006 and later versions.) - S5710HI - V200R003 (The S5710HI is unavailable in V200R006 and later versions.) - S5720HI - V200R007C10 - S6700EI - V200R005 (The S6700EI is unavailable in V200R006 and later versions.) - S6720EI - V200R008 - S6720S-EI - V200R009 - S7703, S7706, and S7712 - V100R003 - S9700 - V200R001 - S12704 - V200R008 - S12708 and S12712 - V200R005 - S12710 - V200R010 - S9303, S9306, and S9312 - V100R002 - S9310 - V200R010 - S9300E - V200R002 Note: For a modular switch, a license is required for MPLS. For a fixed switch, no license is required for MPLS.

MPLS VPN supported by USG firewalls
The USG2000, USG5000, and USG6000 support MPLS VPN.

Whether a license is required for MPLS on the AR router
The AR router can use MPLS without a license.

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