HP J3188A manual CDpstatus, COunters, Counter Name Definition Valid Range

Managing the Hub

Console Command Reference

CDpstatus

To enable or disable the Cisco Discovery Protocol (CDP). The command takes either an ON or an OFF argument. The initial setting is ON. ON enables the protocol. OFF disables it. If no option is chosen, the current status is shown.

COunters

To display network activity counters for each network port, the hub’s

SNMP agent, and the global count for all ports.

The port counters are from the IEEE 802.3 Repeater Management

Specification. They are described below:

	Counter Name	Definition	Valid Range	Corrective Action if over Valid
				Range
	Good Packets	Number of error-free packets received.	Less than 4000	Decrease the traffic level by
			packets per	using a switch to segment the
			second.*	network.
	Collisions	Number of times the port was involved	Less than 2 times	Decrease the traffic level by
		in a collision. A single collision will be	the number of good	using a switch to segment the
		counted by all ports involved, so the	packets.	network
		total collision counters may be less than
Hub		the sum of the port counts.		Replace bad cables and/or
				transceivers if problems persist.
the				Rarely, you may have a
				defective LAN adapter.
Managing
	Late Collisions	Number of collisions which went	Less than.1% of	Too many repeaters between
		undetected by the sending end node.	good packets.	end nodes, or cables which are
				too long, or bad cable.
	CRC/Alignment	Number of packets transmitted	Less than.1% of	This counter indicates faulty
	Errors	incorrectly and number of incorrectly	good packets.	cabling.
		aligned packets.
	Giant Packets	Number of packets larger than 1518	Less than.1% of	Update the LAN adapter drivers
		bytes.	good packets.	on all nodes connected to the
				port.
	Broadcast Packets	Number of packets addressed to	Less than 200	Decrease the number of nodes
		everyone in the network. These packets	packets per	in an IP subnet or IPX network
		consume CPU resources from each	second.*	by using more routers. Consult
		node on the network.		Novell Netware documentation
				on how to reduce broadcasts in
				an IPX network.
	*The port counters in the ASCII console show totals, not number of packets per second. For the Good Packets and
	Broadcast packets, display counters twice over a period of one section to see if the value falls in the valid range.

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