
Configuring SNMP, RMON, BOOTP, DHCP, and RARP Services
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Host Group
When you enable the Ethernet DCM, the default setting (Disabled) for the RMON
Default Host parameter will not create a Host configuration. To create a host
configuration, set the RMON Default Host parameter to Enable before you enable
the Ethernet DCM. For instruction on how to enable the Ethernet DCM, r
efer to
“Enabling the Ethernet DCM Using Site Manager” later in this chapter.
Some RMON network management applications expect the Ethernet DCM to set
up a Host configuration, while others set up their own configurations.
The Host configuration requires 148 bytes. The Host data requires 105 bytes of
memory per host address the Ethernet DCM detects on a segment.
You specify the maximum number of host addresses that appear in the Host
configuration by setting the RMON Max Host parameter when you enable an
Ethernet DCM. If there is not enough memory for the number of hosts you
request, the RMON agent sets the RMON Max Host parameter to the highest
possible value. The number of addresses can range from 100 to 8,128 hosts,
depending on the Ethernet DCM memory configuration. T
able 2-2 shows
recommended values for this parameter.
You calculate the total memory (in bytes) you need for the host data as follows:
105 * value of the RMON Max Host parameter
Note: The RMON agent allows you to create only one Host configuration. Be
sure to set the RMON Default Host parameter according to the expectations of
the RMON network management application.
Table 2-2. Maximum Number of Hosts
Installed DRAM (MB)
Maximum Number of
Hosts
2–4 2,048
5–8 4,096
9–16 8,128
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