4.2.9 Using grstat to Display GRF Statistics

Use the grstat -w70 all <interface> command to display the current statistics of the ATM OC-3c card’s IP stack. The following is an actual screen shot:

#grstat -w70 all ga010 ga010

ipstat

count description

1955290 total packets received

1955269 packets forwarded normally

21 packets handled by the card

ipdrop

 

 

last

last

 

 

count

source addr

dest addr reason

 

 

icmperr

 

 

 

 

 

 

 

last

last

last

last

 

last

count type

code

val

source addr

dest addr error

icmpin

 

 

 

 

 

 

 

 

 

last

 

last

last

count

type

 

code

source addr

dst addr

icmpout

 

 

 

 

 

 

 

 

 

last

 

last

last

count

type

 

code

source addr

dst addr

#

4.3 ATM OC-12c Configuration

This section provides information needed to configure the ATM OC-12c media card. The GRF can be configured in point-to-point or point-to-multipoint ATM topologies with either switches or hosts.

The ATM OC-12c card is very similar to the OC-3c card introduced in Section 4.2, “ATM OC-3c Configuration” on page 110, so only the differences between the two cards will be handled here.

The OC-12c media card provides one physical ATM interface, which supports 220 logical interfaces and operates at 622Mbit/s full duplex.

4.3.1 Physical and Logical ATM Interfaces

Figure 40 on page 120 shows the organization of physical and logical ATM interfaces on the ATM OC-12c media card.

Configuration of IP-Forwarding Media Cards

119

Page 137
Image 137
Lexmark IBM 9077 manual ATM OC-12c Configuration, 119