Enterasys Networks X-Pedition XSR CLI - Manual (Page 448)

Dial Backup Commands
10-94 Configuring the Dialer Interface
backup interface dialer
This command designates a Serial or Fast/GigabitEthernet/GigabitEthernet interface or sub‐
interface as a backup dialer interface.
Syntax
backup interface dialer number
Syntax of the “no” Form
no backup interface dialer number
Default
Disabled
Mode
Interface configuration: XSR(config-if<xx>)#
Examples
The example below configures Dialer interface 57 as the backup for Fast/GigabitEthernet port 2:
XSR(config)#interface fastethernet 2
XSR(config-if)#backup interface dialer 57
XSR(config-if)#ip address 192.168.27.114 255.255.255.0
XSR(config-if)#no shutdown
XSR(config)#interface serial 1/2
XSR(config-if)#physical-layer async
XSR(config-if)#dialer pool-member 1
XSR(config-if)#no shutdown
XSR(config)#interface dialer 57
XSR(config-if)#dialer pool 1
XSR(config-if)#dialer redial attempts 3 forever
XSR(config-if)#dialer string 67921
XSR(config-if)#encapsulation ppp
XSR(config-if)#ip address 10.10.10.1 255.255.255.0
XSR(config-if)#no shutdown
Ethernet backup is applied further in the example below where Dialer interface 57 is configured as
the DSL backup (PPPoE) for Fast/GigabitEthernet sub‐interface 2.1 ‐ invoking the sub‐interface
enables PPPoE. Note that the IP address of the PPPoE caller is negotiated over PPP and the MTU
size is reset to 1492 bytes to avoid Web access problems by PCs attached to the XSR.
Caution: To configure a backup FastEthernet/GigabitEthernet interface or sub-interface, the port
must be in the shutdown state.
number Dialer interface number to use as the backup interface. Range: 0 to 255.
Note: Only one dialer interface can be associated with one dialer pool but one dialer pool may be
associated with many dialer interfaces.