What is an MCE on S series switches


Introduction to an MCE on an S series switch is as follows:
A customer edge (CE) device is an edge device on a customer network. A CE device provides interfaces that are directly connected to the service provider (SP) network.
A multi-VPN-instance CE (MCE) device functions as a CE device for multiple VPN instances in BGP/MPLS IP VPN networking. The MCE function helps reduce network device expenses.
An MCE device maintains a VRF table for each VPN and binds each VPN instance to an interface. When the MCE device receives a route, it checks the receiving interface to determine the origin of the route and adds the route to the VRF table of the VPN instance bound to the interface.
The PE interfaces connected to the MCE device must also be bound to the VPN instances. The bindings between interfaces and VPN instances on the PE device must be the same as those on the MCE device. When the PE device receives a packet, it checks the receiving interface to determine to which VPN the packet belongs, and then transmits the packet in the appropriate tunnel.

Other related questions:
Do S series switches support the MCE function
For the support for MCE on S series switches of different models: - S12700: See "VPN - BGP/MPLS IP VPN" in S12700 Product Use Precautions. - S7700 and S9700: See "VPN - BGP/MPLS IP VPN" in S7700&S9700 Product Use Precautions. - S9300: See "VPN - BGP/MPLS IP VPN" in S9300&S9300E&S9300X Product Use Precautions. - S1720, S2700, S3700, S5700, and S6700: See "VPN - BGP/MPLS IP VPN" in S1720&S2700&S3700&S5700&S6700 Product Use Precautions. - S600: See "VPN - MCE" in S600-E Product Use Precautions.

DHCP functions of S series switches
DHCP dynamically configures and uniformly manages network parameters of hosts on a TCP/IP network. DHCP provides the following functions: - Dynamic allocation: DHCP allocates an IP address with a limited validity period (called lease) to a client. This mechanism applies to hosts that temporarily connect to a network with fewer IP addresses than the total number of hosts and hosts do not need to permanently connect to the network. For example, this mechanism can be used to allocate IP addresses to laptops used by employees on business trips or mobile terminals in cafes. - Static allocation: Fixed IP addresses are assigned to specified hosts. This mechanism applies to hosts with special IP address requirements. For example, the file server of an enterprise needs to use a fixed IP address to provide services for extranet users. Compared with manual IP address configuration, DHCP static allocation prevents manual configuration errors and helps network administrators perform unified maintenance and management. DHCP can allocate other network parameters except for the IP address to hosts, including the DNS server address, routing information, and gateway address.

What is the input current for an S series switch
If an S series switch uses pluggable power supplies, view the silkscreen of input current on power sockets. If a switch uses built-in power supplies, you can also view the silkscreen on the power sockets.

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