3com S7906E 설치 설명서

 

1-2 

An IRF system comprises multiple member devices: the master runs, manages and maintains the IRF, 

whereas the slaves process services as well as functioning as the backups. As soon as the master fails, 

the IRF system elects a new master immediately to prevent service interruption and implement 1:N 

backup. 

Not only the physical IRF ports of members can be aggregated, but also the physical links between the 

IRF system and the upper or lower layer devices can be aggregated, and thus the reliability of the IRF 

system is increased through the link backup. 

z 

Powerful network expansion capability 

By adding member devices, you can increase the number of IRF ports and expand network bandwidth. 

As all member devices have their own CPUs, they can process and forward protocol packets 

independently, thus improving processing capability of the IRF system. 

As shown in

, a master and a slave form an IRF, which is a single logical device to the devices 

of the upper layer and lower layer. You can deploy an IRF at the core layer, distribution layer, or access 

layer. 

Figure 1-1 IRF networking 

IP network

IP network

IRF cable

Equals

Master

Slave