IBM 9077 manual Hippi Configuration, Introduction to Hippi, 133

4.4.11 Using grstat to Display GRF Statistics

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

#grstat all gf001 gf001

ipstat

count description

2958246 total packets received

3 packets dropped

2958226 packets forwarded normally

17 packets handled by the card

ipdrop

	last	last
count	source addr	dest addr reason
3	10.10.1.10	192.168.14.1 TTL expired

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
3	TIMXCEED		INTRANS	10.10.1.13		10.10.1.10

#

4.5 HIPPI Configuration

This section provides the steps to configure the High Performance Parallel Interface (HIPPI) media card of a GRF.

4.5.1 Introduction to HIPPI

HIPPI poses interesting configuration problems because of the number of ways HIPPI connections can be established. Several addressing schemes can be used, depending upon how a site needs to organize and connect equipment to support a range of user needs.

Not only are there several addressing schemes, but a HIPPI media card can be configured to process all of them. The HIPPI media card is capable of handling both HIPPI-SC switching protocol and IP packet routing, and, based on information field (I-field) indicators, can dynamically alternate between

Configuration of IP-Forwarding Media Cards 133