Changing the High-Capacity Card Temperature Alarm Thresholds

This procedure is used to change the temperature alarm thresholds for high-capacity cards (shown in Table 3-26) using the chg-th-alm command and these parameters.

:thermallv1 – The temperature threshold, specified as a percentage of the card’s thermal shutdown temperature, at which major alarm UAM 0078 is generated. UAM 0078 is generated to alert the user that corrective action needs to be performed to prevent the high-capacity cards from overheating. If the high-capacity card is E5-SLAN, E5-STC, E5-SM4G, E5-TSM, or E5-MCPM-B, the state of the card is not changed. If the high-capacity card is an HC MIM, E5-E1T1, E5-ENET card, or E5-ATM card, or SLIC, the state of the card is changed to IS-ANR (in service-abnormal).

For the following cards, these actions occur when thermallv1 temperature threshold is reached:

E5-ENET-B running ERTHC GPL

Alarm raised; no additional actions.

E5-ENET-B running SLANHC GPL

Alarm raised; no additional actions.

E5-ATM-B running ATMHC GPL

Alarm raised. PST/SST of card transitions to IS-ANR/Restrict.

E5-ENET-B running IPSHC GPL

Alarm raised; no additional actions. .

E5-ENET-B running IPSG GPL

Alarm raised; no additional actions.

E5-ENET-B running IPLIMx/IPGWx GPL

Alarm raised; no additional actions.

E5-MCPM-B running MCPHC GPL

Alarm raised; no additional actions.

The values for this parameter are 73 to 92. The system default value for this parameter is 92.

:thermallv2 – The temperature threshold, specified as a percentage of the card’s maximum operating temperature, at which critical alarm UAM 0077 is generated. When this threshold is reached, the high-capacity cards shed their traffic load, accept no more traffic, and the state of the cards is changed to IS-ANR (in service-abnormal). The values for this parameter are 74 to 100. The system default value for this parameter is 100.

For EPM-B cards, when the thermallv1 temperature threshold is reached, critical alarm 0077 is raised and the following additional actions occur:

E5-ENET-B or SLIC running ERTHC GPL

Outstanding grant requests will be completed but no new grant requests will be accepted. The card's state transitions “in-service abnormal.”

E5-ENET-B or SLIC running SLANHC GPL

Outstanding grant requests will be completed but no new grant requests will be accepted. The card's state transitions “in-service abnormal.”

E5-ATM-B running ATMHC GPL

PST/SST of card remains IS-ANR/Restrict.

E5-ENET-B or SLIC running IPSHC GPL

Auto inhibits all telnet terminals allowed by user on that card and sets their status to OOS-MT-DSBLD/MEA. Sets card state to out-of-service, maintenance fault.

E5-ENET-B or SLIC running IPSG GPL

Outstanding grant requests will be completed but no new grant requests will be accepted.

E5-ENET-B running IPLIMx/IPGWx GPL

Outstanding grant requests will be completed but no new grant requests will be accepted.

E5-MCPM-B or SLIC running MCPHC GPL

PST/SST of card transitions to IS-ANR/Restrict . If card is primary MCP, role change arbitration is initiated.

For more information on UAM 0078 and UAM 077, go to Unsolicited Alarm and Information Messages Reference.

Table 3-26 shows the maximum thermal operating limit of temperatures of these cards at selected threshold levels.

Table 3-26 High Capacity Thermal Limits

High Capacity Card	High Capacity Card's Temperature at the Maximum Thermal Operating Limit (thermallv2 = 100%)	High Capacity Card Temperatures at Selected Threshold Levels
		95%	90%	85%	80%	75%
HC-MIM	82° C 179.6° F	77.9° C 172.2° F	73.8° C 164.8° F	69.7° C 157.5° F	65.6° C 150.1° F	61.5° C 147.2° F
E5-ENET E5-E1T1 E5-STC E5-SLAN E5-TSM E5-ATM	95° C 203° F	90.25° C 194.5° F	85.5° C 185.9° F	80.75° C 177.4° F	76° C 168.8° F	71.25° C 160.3° F
E5-SM4G E5-MASP E5-ENET-B E5-ATM-B E5-SM8G-B E5-MCPM-B	90° C 194° F	85.5° C 185.9° F	81° C 177.8° F	76.5° C 169.7° F	72° C 161.6° F	67.5 °C 153.5°F

The chg-th-alm command contains other optional parameters. These parameters are not shown here because they are not necessary to provision the high-capacity card temperature alarm thresholds. These parameters are explained in more detail in Commands User's Guide.

1. Display the current high-capacity card temperature alarm thresholds in the database by entering the rtrv-th-alm command.

   This is an example of the possible output.

   rlghncxa03w 06-10-28 09:12:36 GMT EAGLE5 36.0.0
   Thermal Alarm Level 1:               92%
   Thermal Alarm Level 2:               100%
   RTRV-TH-ALM: MASP A - COMPLTD.
   

   Note:

   Thertrv-th-alm command output contains other fields that are not used in this procedure. If you wish to see all the fields displayed by thertrv-th-alm command, see thertrv-th-alm command description in Commands User's Guide.
2. Change the temperature alarm thresholds by entering the chg-th-alm command with at least one of the temperature alarm threshold parameters.

   The thermallv2 parameter value shown in the rtrv-th-alm output after the chg-th-alm command has been executed must be greater than the thermallv1 parameter value shown in the rtrv-th-alm output.

   If a temperature alarm threshold parameter is not specified with the chg-th-alm command, that parameter value will not be changed. The system default values for the temperature alarm threshold parameters are:

   • :thermallv1 = 92

   • :thermallv2 = 100

   For this example, enter this command.

   chg-th-alm:thermallv1=74:thermallv2=80

   When this command has successfully completed, this message should appear.

   rlghncxa03w 06-10-28 09:12:36 GMT EAGLE5 36.0.0
   CHG-TH-ALM: MASP A - COMPLTD
   

3. Verify the changes using the rtrv-th-alm command.

   This is an example of the possible output.

   rlghncxa03w 06-10-28 09:12:36 GMT EAGLE5 36.0.0
   Thermal Alarm Level 1:               70%
   Thermal Alarm Level 2:               80%
   RTRV-TH-ALM: MASP A - COMPLTD.
   

   Note:

   Thertrv-th-alm command output contains other fields that are not used in this procedure. If you wish to see all the fields displayed by thertrv-th-alm command, see thertrv-th-alm command description in Commands User's Guide.
4. Backup the new changes using the chg-db:action=backup:dest=fixed command.

   These messages should appear, the active Maintenance and Administration Subsystem Processor (MASP) appears first.

   BACKUP (FIXED) : MASP A - Backup starts on active MASP.
   BACKUP (FIXED) : MASP A - Backup on active MASP to fixed disk complete.
   BACKUP (FIXED) : MASP A - Backup starts on standby MASP.
   BACKUP (FIXED) : MASP A - Backup on standby MASP to fixed disk complete.
   

Figure 3-38 Changing the High-Capacity Card Temperature Alarm Thresholds