Draytek VigorSwitch G1260, Руководство пользователя

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VigorSwitch G1260 User’s Guide 37
1. Public standardized specification
2. No interoperability issue
3. No change to IEEE 802.3 frame format, no change in software and management.
4. Increased bandwidth and availability
5. Load sharing and redundancy
6. Automatic configuration
7. Rapid configuration and reconfiguration
8. Deterministic behavior
9. Low risk of duplication or mis-ordering
10. Support existing IEEE 802.3 MAC Clients
11. Backwards compatibility with aggregation-unaware devices
There are also some constraints when applying LACP.
1. LACP does not support inter-switch bandwidth aggregation.
2. The ports aggregated must operate in full-duplex mode.
3. The ports in the same Link Aggregation Group must have the same speed, for
example, all with 100Mbps or all 1000Mbps. You cannot aggregate a 1000Mbps
and two 100Mbps for a 1.2Gbps trunk port.
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Link Aggregation: It is a method to have multiple physical links with the same media
and speed bundled to be a logical link forming a Link Aggregation
Group with a group ID. With the viewpoint of MAC client, each
Link Aggregation Group is an independent link.
There are three cases of link used in the network, which are switch to
switch, switch to station and station to station. Here station may be a
host or a router.
Link Aggregation, called port trunking sometimes, has two types of
link configuration, including static port trunk and dynamic port
trunk.

Static Port Trunk:
When physical links are changed, administrator needs to manually
configure the switches one by one.

Dynamic Port Trunk:
When physical links are changed, LACP takes over and
automatically reconfigure. Administrator does not have to do
anything and may see the trap message of LACP changed in NMS.