21310120_LCP_Network_Management

[ Pobierz całość w formacie PDF ]

a small set of network statistics which are displayed as status descriptions. The statistics
appear in the following groupings:
1. Group 1 is color coded: RED, YELLOW, and GREEN.
GREEN means operating as expected,
YELLOW implies something is not quite right or out of spec
RED implies something needs attention.
2. Group 2 is also color coded: RED and GREEN.
GREEN means operating as expected
RED means non-operational.
3. Group 3 is degree coded: LOW, MODERATE, and HEAVY.
These degrees indicate the percentage of traffic that is on the network.
3-4 2131-0120 Rev 00
LCn and Health Parameters
All of the health parameters are in the Health Summary Group. Table 3-2 lists the Health
parameter threshold default values for Green/Yellow and Yellow/Red as well as the name
of the parameter that defines the threshold in parenthesis.
Table 3-2 Health Parameter Defaults
Green/Yellow Yellow/Red
Health Variable Green Yellow Red
Threshold Threshold
RXDeltaLDDBIndicator 150 300
(rxldbootgy) (rxldbootyr)
Bstolddeltaindicator 50 100
(rxldbsdeltagy) (rxldbsdeltayr)
RXBootIndicator 150 300
(rxbootgy) (rxbootyr)
RXBSIndicator 150 300
(rxbsgy)
(rxbsyr)
MacRxPerError 50,000 40,000
Indicator
(merrgy) (merryr)
BSRetainPerLost 10,000 2,000
Indicator (retlostgy) (retlostyr)
PacerChangeIndicator 10,000 2,000
(pcrchggy (pcrchgyr)
EtherPktsPerError 1,000,000,000 800,000,000
Indicator (eerrgy) (eerryr)
CATVLoadIndicator 30 50
EtherLoadIndicator 30 50
(elm) (emh)
CATVTxRxIndicator 30 50
(urxlm) (urxmh)
EtherTxRxIndicator 30 50
(erxlm) (erxmh)
2131-0120 Rev 00 3-5
LCP Network Management Guide
The units on the Load Thresholds are percent.
Note:
For example, the UniLINK Low/Moderate (ulm) Threshold default of 30 means 30%
load or 3 Mbps.
The units on Rate Indicators are ratios.
For example, the Pacer Change Green/Yellow Threshold (pcrchggy) is one Pacer change
per 10,000 Block Sync Intervals (BSIs) or approximately one loss of Pacer every 5
minutes.
The units on the Level Thresholds are 1/50 of a dB.
For example, the Yellow/Red Threshold on the highest to lowest rung of the Block Sync
Packet since booting (rxbootyr) is 300*1/50 dB or 6 dB.
Modifying the Health Parameters
Modifications, or sets to the health parameters require that you maintain the proper
relationship between the thresholds and, depending on the thresholds you are changing,
you might need to modify Yellow/Red before Green/Yellow.
It is important to understand that although sets to these variables change the thresholds
immediately, the health variables may not change quickly. For example, the load
indicators are calculated every 30 seconds by default. Also a network that has been
running for a long time since error stats were reset may take a long time for the Packet
Error Rate to cross one of the new thresholds.
Restore Defaults resets the thresholds to the above table. The new thresholds take effect
immediately with the above caveat in effect. However, the NVRAM is not modified. If the
unit were to be reset, the User defaults would be restored.
When you are satisfied that the thresholds are appropriate for your network, you can save
them to NVRAM using the Save User Thresholds set on the Health Parameters
Information window. This ensures that the active thresholds are preserved across resets.
If the user defaults are to be permanently erased, the proper procedure is to Restore
Defaults followed by Save User Thresholds.
To modify a CDM s health parameters:
1. Access the SNMPc desktop.
2. Select the CDM(s) you want.
3. Choose Manage>LCP/LCb V3.xx And Up>Configuration>Health
Parameters>. The associated LANcityLCP
Health Information window appears. For illustration, Figure 3-2 shows the Health
Yellow/Red Information window.
3-6 2131-0120 Rev 00
LCn and Health Parameters
Figure 3-2 Sample Health Parameter Window - Health Yellow/Red Information
4. Enter any changes you want, clicking Set after each change.
5. When you finish, click Done to return to the SNMPc desktop.
6. Choose Manage>LCP/LCb V3.xx And Up>Configuration>Health Parameters>Health
Parameters. The LANcity LCP Health Information window (Figure 3-3) appears.
2131-0120 Rev 00 3-7
LCP Network Management Guide
Figure 3-3 Health Information Window
7. Select Save User Defaults, then click Set. [ Pobierz całość w formacie PDF ]

Podstrony