User manual
33
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6.6 Redundancy
6.6.1 Port Trunking
In telecommunications, trunking is a method for a system to provide network access to many clients
by sharing a set of lines or frequencies instead of providing them individually. This is analogous to the
structure of a tree with one trunk and many branches. Trunking is set by the configuration software, the
two or more physical ports get together into a logical path to increase the bandwidth between the switch
and the network node. Trunking is a packaging technology, it is a peer to peer link, both ends of the link
are switches, it can be a switch and a router, and also can be a host, switch or router.
Based on port
trunking function that allows between two or more ports between switches, switches and routers, hosts
the switch or router connected in parallel to provide for the simultaneous transmission of higher bandwidth
and greater throughput, significantly entire network capacity. Trunking is more economical to increase the
bandwidth between the switch and network device, such as servers, routers, workstations, or other
switches. Trunking function is to integrate more than one physical port (typically 2-4) to a logical channel.
（
Figure 6.6.1
）
Devices support two Trunking groups, 2-4 ports connected to each other.
1. The trunking groups require all the attributes can be the same, including speed, duplex, STP state etc.
2. If you do not confirm the STP state, please disable RSTP function, or close others, leaving only one STP
channel.
3. Port 1 as the system reserved cannot be used as trunking.
4. The ports of having been set to the port aggregation that cannot be set to ring ports.
