IBM 9077 User Manual

IBM 9077 SP Switch Router: Get Connected to the SP Switch

you see the output for all eight. The input port side is reported on 
first.

maint 5

 -to return GRF switch statistics.

maint 7

 -to clear the current collected statistics.

maint 8

 -to display the ARP table for one interface or, if no interface is 

specified, for all interfaces.

This section provides information needed to configure the ATM OC-3c media 
card. The GRF can be configured in point-to-point or point-to-multipoint ATM 
topologies with either switches or hosts. The OC-3c media card provides two 
independent physical ATM interfaces, each of which supports 110 logical 
interfaces and operates at 155Mbit/s full duplex.

Figure 37 shows the organization of physical and logical ATM interfaces on 
the ATM OC-3c media card.

Figure 37.  ATM OC-3c Physical and Logical Interfaces

The ATM OC-3c media card supports two physical interfaces, each of which 
supports the assignment of 110 logical interfaces out of a range of 128.

Logical interfaces provide a simple way of mapping many IP addresses onto 
a single ATM port. A logical interface serves as the connection between ATM 
and IP. Each logical interface is assigned a unique IP address in 
grifconfig.conf. All interface names are case sensitive. Always use lower case 
letters when defining interface names.

220/card

1024/card

Physical Interface 1

(bottom)

80-ff (range)

512

0-32767
0-511

0
1-15

Physical Interface 0

(top)

Logical Interfaces

Total # of active VCs

VPI

VCI

0-7f (range)

512

0-32767
0-511

0
1-15