Chapter 31: Monitoring the SSB
Getting SSB Hardware Information
Steps To Take 1.
Display the SSB Hardware Information on page 413
2.
Locate the SSB Serial Number ID Label on page 413
3.
Display the SSB Firmware Version on page 414
Step 1: Display the SSB Hardware Information
Action To display the SSB hardware information, use the following CLI command: user@host> show chassis hardware
Sample Output user@host> show chassis hardware
Hardware inventory:
Item Version Part number Serial number Description
[...Output truncated...]
SSB slot 0 REV 01 710-001951 AD5904 Internet Processor II
SSB slot 1 N/A N/A N/A backup
[...Output truncated...]
What It Means The command output displays the SSB version level, part number, serial number, and description.
Step 2: Locate the SSB Serial Number ID Label
Action To locate the SSB serial number ID label, look on the top of the SSB adjacent to the
SDRAM memory bank. See Figure 167.
Figure 167: SSB Serial Number ID Label
AA1234
Serial number ID label
Getting SSB Hardware Information !
413
JUNOS Internet Software Network Operations Guide: Hardware
Step 3: Display the SSB Firmware Version
Action To display the version of firmware running on the SSB, use the following CLI command: user@host> show chassis firmware
Sample Output user@host> show chassis firmware
Part Type Version
[...Output truncated...]
SSB 0 ROM Juniper ROM Monitor Version 4.2b1
O/S Version 5.4I20020626_0216_mtiwari by mtiwar
SSB 1
What It Means The command output displays the type and version level of the firmware running on the SSB.
Replacing the SSB
The SSB is hot-pluggable. When the SSB is removed, all packet forwarding stops immediately and the Routing Engine responds by sending alarms through the
Ethernet channel to the management console. When the SSB is replaced, it is rebooted by flash EEPROM.
Action If the SSB fails, replace it as described in the M20 Internet Router Hardware Guide .
414 !
Replacing the SSB
