3com corebuilder 10002211 Manuel D’Utilisation

A

PPENDIX

 B: R

EMOTE

 M

ONITORING

 (RMON) T

ECHNOLOGY

The HostTopN group prepares reports describing hosts that top a list 
ordered by one of their statistics. Information from this group includes:

■

Number of received packets

■

Number of transmitted packets

■

Number of received octets

■

Number of transmitted octets

■

Number of transmitted broadcast packets

■

Number of transmitted multicast packets

The Matrix group records statistics on conversations between sets of 
addresses. The information available from this group includes:

■

Number of packets transmitted from the source address to the destination 
address

■

Number of octets, excluding errors, transmitted from the source address to 
the destination address

■

Number of bad packets transmitted from source to destination

RMON requires one probe per LAN segment. Because a segment is a 
portion of the LAN separated by a bridge or router, the cost of 
implementing many probes in a large network can be high.

To solve this problem, 3Com has built an inexpensive RMON probe into the 
Transcend SmartAgent software in each CoreBuilder 6000 system. This 
probe allows you to deploy RMON widely around the network at a cost of 
no more than that for traditional network monitors.

Placing probe functionality inside the CoreBuilder 6000 system has these 
advantages:

■

You can integrate RMON with normal device management.

■

The CoreBuilder system can manage conditions proactively.