Emerson ATCA-S201 Manuale Utente

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RTM-ATCA-SXXX Overview 
6806800H62B 
ATCA‐S201 Installation and Use Guide 
 
47 
 
4.8  Link aggregation and bonding 
The ATCA-S201 supports 802.3ad link aggregation also known as “bonding”.  
Bonding allows you to aggregate multiple Ethernet ports into a single group, 
effectively combining the bandwidth into a single connection. For example, you can 
aggregate the ATCA base channel ports (1 Gb/s each) into a trunk group, providing 
2Gb/s cumulative bandwidth, fault tolerance and load balancing. 
 
  
Bond0
Eth0
Eth1
Switch 1
Switch 2
Base channel bonding 
example
Bond0
Eth0
Eth1
Base channel 
bonding 
Host
Storage 
Blade
Host Blade
The Linux bonding driver provides the ability to group ports, 
detect link failures and reroute traffic  to  the surviving ports in 
a manner transparent to the storage participants.
 
Figure 10 Link aggregation 802.3ad (bonding), theory of operation