Инструкции По Установке для 3com S7906E

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To do… 
Use the command… 
Remarks 
Specify the reserved ports, 
that is, the ports that will not 
be disabled when the device is 
in the recovery state 
mad exclude interface 
interface-type interface-number 
Required 
By default, no reserved port is 
specified, that is, all service 
ports will be disabled 
automatically when the 
device is in the recovery 
state. 
 
Failure recovery 
When the IRF system handles a multi-active problem, it disables all service ports on the devices in the 
recovery state except for the reserved ones. Failure recovery is to restore (undo shutdown) these 
disabled service ports. The following two failure recovery approaches are available: 
Auto recovery: The IRF system uses logs to inform the user to repair the IRF link. After the link is 
recovered, the devices in the recovery state will reboot, and join the current IRF as slaves; the 
disabled ports are automatically restored. 
Manual recovery: If auto recovery fails due to exception (such as the current master device fails), 
you can restore devices in the recovery state through command lines. 
Follow these steps to manually restore devices in the recovery state to the normal state: 
To do… 
Use the command… 
Remarks 
Enter system view 
system-view 
— 
Restore devices in the 
recovery state to the normal 
state 
mad restore 
Required 
 
Accessing an IRF 
Accessing the Master 
After an IRF is formed, you can access the console of the IRF system through the AUX or console port 
of any member device. Create a Layer 3 Ethernet interface, and configure an IP address for it, and 
make sure that the interface and the user terminal are routable to each other. Then you can access the 
IRF system remotely through Telnet, Web, or SNMP. 
When you log in to the IRF, actually you log in to the master device of the IRF. The master is the 
configuration and control center of an IRF. After you configure the IRF on the master, the IRF system 
synchronizes the configurations to the slaves. 
Accessing a Slave 
When you log in to an IRF, actually you log in to the global active SRPU of the IRF. The operation 
interface of the access terminal displays the console of the global active SRPU. After you execute the 
irf switch-to chassis  chassis-number  slot  slot-number command, the device can redirect you to a 
global standby SRPU. After that, the user access terminal displays the console of the global standby 
SRPU instead of that of the global active SRPU. The system enters user view of the global standby 
SRPU and the command prompt is changed to <Sysname-Slave#member ID/slot number>, for