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B-8 APPENDIX B: REMOTE MONITORING (RMON) TECHNOLOGY
HostTopN Group 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
Matrix Group
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
3Com Transcend
RMON Agents
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.