
Configuring BayStack Remote Access
6-18 117341-A Rev. A
You need 504 bytes of memory for each History configuration (252 bytes each for
the short-term and long-term History configurations). The History data requires
52 bytes of memory per bucket. You calculate the total memory (in bytes) that you
need to store the History data as follows:
<Number of buckets> * 52 * 2 History configurations = Total memory required
This calculation shows that you need approximately 5.1 KB for the default setting
of 50 buckets.
Host Group
When you enable the DCM, the default setting (Disable) for the RMON Default
Host parameter does not create a Host configuration. To create a Host
configuration, set the RMON Default Host parameter to Enable before you enable
the DCM, as described in “Acti
vating the DCM” on page 6-8.
Some RMON network management applications expect the DCM to set up a Host
configuration, while others set up their own Host configurations.
The Host configuration requires 148 bytes. The Host data requires 105 bytes of
memory for each host address the 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 a
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.
Depending on the DCM memory configuration, the number of addresses can
range from 100 to 8,128. T
able 6-4 shows the recommended values for this
parameter.
Note: The RMON agent allows you to create only one Host configuration. Be
sure to set the RMON Default Host parameter to match the requirements of the
RMON network management application.
Table 6-4. Maximum Number of Hosts
Installed DRAM (MB) Maximum Number of Hosts
2 to 4 2,048
5 to 8 4,096
9 to 16 8,128
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