Loop Telecom AM3440 series, Руководство пользователя, Страница: 44 / 70

CHAPTER 7 SYSTEM SETUP
38
7.2.5. Link
Aggregation Setup
¾ Command Path Main Menu > (S) System Setup > (P) Link Aggregation Setup
¾ Function Enables users to change the state of Trunk1 and Trunk 2 for
the link aggregation
¾ Description Link Aggregation Setup:
y Disable: disable the link aggregation function
y Leader_ETH1~4: the trunk group’s configuration depends
on the leader port’s setting
Table 7-16 Link Aggregation Setup
Field Setting Options Default
Trunk Group1 Disable, Leader_ETH1, Leader_ETH2 Disable
Trunk Group2 Disable, Leader_ETH3, Leader_ETH4 Disable
¾ Link Aggregation Setup Screen:
SLOT 2 TDMoE === Link Aggregation Setup === 15:49:31 12/31/2009
ARROW KEYS: CURSOR MOVE, TAB: ROLL OPTIONS
Trunk Group1: Disable
Trunk Group2: Disable
NOTE:
Trunk Group1:ETH1,ETH2
Trunk Group2:ETH3,ETH4
<< Press ESC key to return to previous menu >>
What is Link Aggregation?
Link Aggregation is a method of binding two or more ports/links into a single logical link/trunk in order to
increase the bandwidth, and implicitly provides redundancy as well. Load Balancing Algorithm is
applied automatically so that no single port of a trunk group will be overwhelmed. The Load Balancing
Algorithm of the TDMoE card is based on the result of XOR Boolean operation on both Source MAC
address and Destination MAC address. For a TDMoE card, 4 interfaces form two trunk groups; ETH1
and ETH2 compose one trunk group,
while ETH3 and ETH4 establish another one. The following figure
illustrates the trunk groups of a TDMoE card. Each Fast Ethernet interface possesses 100 Mbps
bandwidth. By combining two ports and forming a trunk group, the bandwidth of that logical interface
reaches up to 200 Mbps.