HP J3250M manual Configuring Your Device, Status Port Counters

	Accessing Hub Features
	Configuring Your Device
Table 6-2. Switching Hub Global Counters
Counter	Description
Total Octets	Total number of octets of data (including bad packets)
	received on the network. This object can be used to
	estimate Ethernet utilization.
Broadcast Packets	Messages sent to all users on the network.
Multicast Packets	Multicast packets are delivered to a subset of users on the
	network, as opposed to Broadcast packets, which are sent
	to all users.
Collisions	When two or more devices attempt to transmit a message
	on a cable at the same time, interfering with one another’s	Accessing
	transmissions. The number of collisions should be
	proportional to the number of packets transmitted over time
	and the number of nodes operating on the network.
		FHub
CRC/Alignment Errors	The Cyclic Redundancy Check (CRC) is a code typically
	placed at the end of the frame or packet to ensure the
	integrity of the data within the frame.	eatures
	Alignment Errors are the number of instances where the
	CRC method was used to correct a packet whose bits were
	misaligned because of timing errors.
Fragments	Total number of packets received that were less than 64
	octets in length and had a bad Frame Check Sequence
	(FCS).
Jabbers	Total number of packets received that were longer than
	1518 octets and had a bad Frame Check Sequence (FCS).
	High levels indicate too many packet transmissions.

Status - Port Counters

The Port Counters button displays a page with information about important counters for each port. See the online help for information on each counter.

Configuring Your Device

When you select the Configuration tab the Device View (formerly a Closeup View) is displayed in the page. The other buttons in this page provide access to various configuration features for that device.

6-5