Member port may adopt the access, trunk or hybrid mode, which must be
consistent.
3.1.3.2 LACP
LACP (Link Aggregation Control Protocol) follows IEEE 802.3ad. LACP dynamic
aggregates several physical ports to Trunk group for one smart group port. LACP
automatically aggregates to obtain the maximum bandwidth. LACP supports static
aggregation and dynamic aggregation. Static LACP aggregation is manually configured,
and dynamic LACP aggregation dynamically adds the port to aggregation group.
ZXR10 8900E supports smart group parameter configuration, and share traffic load
according to the following modes (It can also be applied to static aggregation).
Source MAC address, VLAN, Ethernet type, and ingress port;
Destination MAC address, VLAN, Ethernet type, and ingress port;
Source and destination MAC address, VLAN, Ethernet type, and ingress port;
Source IP address, source TCP or UDP port;
Destination IP address, destination TCP or UDP port;
Source and destination IP address, and source and destination TCP or UDP port.
8900E also supports global mode, namely, share the load in one smart-group according
to the parameters of protocol messages of IPv4, IPv6, MPLS L2 VPN and MPLS L3 VPN
to distribute the traffic equably in the smart-group.
3.1.3.3 MC-ELAM
8900E support inter-card and intra-card link aggregation as well as MC-ELAM
（Multi-Chassis Ethernet Link Aggregation Manager） whose working principle is shown
as follows:
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