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Configuring OCx/STMx and OC48 Interfaces

The router supports IP/ATM, IP/Frame Relay, and IP/PPP over SONET on the OCx/STMx interfaces. OC48 interfaces support IP/Frame Relay and IP/PPP over SONET, but do not support ATM operation. This interface support allows service providers to accept incoming optical connections or connect the router to the backbone network through optical connections. The router’s SONET implementation supports termination, statistic gathering, and alarm surveillance at the section, line, and path layers of a SONET interface.

Figure 7: SONET Interfaces

Image g013032.gif

The following sample command sequence configures POS for an OC3 interface. See JUNOSe Link Layer Configuration Guide , for details.



host1(config)#interface pos 0/1 

host1(config-if)#encapsulation ppp 

host1(config-if)#clock source internal module 

host1(config-if)#loopback line 

host1(config-if)#pos framing sdh 

host1(config-if)#mtu 1600 

host1(config-if)#mru 1600 

host1(config-if)#pos scramble-atm

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