D-Link DGS-3312SR [62/290] Link aggregation

DGS-3312SR Stackable Gigabit Layer 3 Switch

Link Aggregation

Understanding Port Trunk Groups

Port trunk groups are used to combine a number of ports together to make a single high-bandwidth data pipeline.

The DGS-3312SR supports up to six port trunk groups with two to eight ports in each group. A potential bit rate of 8000

Mbps can be achieved.

Figure 4- 8. Example of Port Trunk Group

The Switch treats all ports in a trunk group as a single port. Data transmitted to a specific host (destination address) will

always be transmitted over the same port in a trunk group. This allows packets in a data stream to arrive in the same order

they were sent.

NOTE: ted, packets intended

cted port will be load shared among the other uplinked ports of the

link aggregation group.

tion allows s grouped together and to act as a single link. This gives a bandwidth that is a

multiple of a single link's bandwidth.

ggregation is most co the

backbone of a network.

allows the creat of the

ports in the group must be members of the same VLAN, and their STP status, static multicast, traffic control, traffic

n and 802.1p de ust

not be enabled on the trunk s

full-duplex.

The Master Port of the gr

configuration that can be ap

Load balancing is automatic s the

network traffic to be directe

If any ports within the trunk group become disconnec

for the disconne

Link aggrega everal ports to be

Link a mmonly used to link a bandwidth intensive network device or devices, such as a server, to

The Switch ion of up to six link aggregation groups, each group consisting of 2 to 8 links (ports). All

segmentatio fault priority configurations must be identical. Port locking, port mirroring and 802.1X m

group. Further, the aggregated links must all be of the same speed and should be configured a

oup is to be configured by the user, and all configuration options, including the VLAN

plied to the Master Port, are applied to the entire link aggregation group.

ally applied to the ports in the aggregated group, and a link failure within the group cause

d to the remaining links in the group.