Aggregated Links; How 802.3Ad Link Aggregation Operates - 3Com SuperStack 3 3812 Implementation Manual

Aggregated Links

How 802.3ad Link
Aggregation
Operates
Ports at both ends of the link should be set to auto-negotiate.
Aggregated links are connections that allow devices to communicate
using two member links in parallel. Aggregated links provide the
following benefits:
They can potentially increase the bandwidth of a connection. The
■
capacity of the multiple links is combined into one logical link.
They can provide redundancy — if one link is broken, the other link
■
will still pass traffic.
The Switch 3812 and Switch 3824 support a maximum of 12 aggregated
links; the Switch 3848 supports a maximum of 32.
Your Switch supports aggregated links on the 10/100/1000 and SFP
ports. An aggregation can be created by using two 10/100/1000 ports,
two SFP ports or one SFP port and one 10/100/1000 port.
Figure 1 shows two Switches connected using an aggregated link
containing two member links. If both ports on both Switch units are
configured as 1000BASE-TX and they are operating in full duplex, the
potential maximum bandwidth of the connection is 2 Gbps.
Figure 1 Switch units connected using an aggregated link
.
Your Switch supports IEEE Std 802.3-2002 (incorporating 802.3ad)
aggregated links which use the Link Aggregation Control Protocol
(LACP). LACP provides automatic, point-to-point redundancy between
two devices (switch-to-switch or switch-to-server) that have full duplex
connections operating at the same speed.
By default, LACP is disabled on all Switch ports.
Switch
Switch
Aggregated Links
Aggregated Link
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