ALOM network port unresponsive after network switch power cycle

Asset ID:	1-71-1019594.1
Update Date:	2011-02-07
Keywords:

Solution Type Technical Instruction Sure

Solution 1019594.1 : ALOM network port unresponsive after network switch power cycle

Related Items


Sun Fire V245 Server
 Sun Fire V215 Server
 Sun Fire T2000 Server
 Sun Fire V445 Server
 Sun SPARC Enterprise T2000 Server
 Sun Netra T2000 Server

Related Categories


GCS>Sun Microsystems>Servers>NEBS-Certified Servers
 GCS>Sun Microsystems>Servers>Entry-Level Servers
 GCS>Sun Microsystems>Servers>CMT Servers

PreviouslyPublishedAs
241846

Description
This document describes how to re-enable the system management network port on an MPC885 based ALOM+ systems after it has lost network connectivity following a network switch power cycle.
Symptoms:

Can't access ALOM through the System Management network port
ALOM network Port Hung

Purpose/Scope:

This document describes what to do to re-enable the network management port on ALOM+ systems after the connection has hung due to the switch, to which it is connected, having been power cycled. This behavior has been confirmed on systems attached to both Cisco 4000 and 6000 series chassis, using multiple copper network linecards and supervisor modules. CatOS 8.5 and IOS 12.2 are being used, ports are configured to auto negotiate port speed and duplex.When problem occurs serial access remains unaffected.
It is not intended that this document be a comprehensive guide to resolving generic ALOM connectivity issues.

Steps to Follow
Network access can be recovered by following the steps shown below

Connect to the serial port of the ALOM using your preferred method.
Check that ALOM responds when Carriage Return key is pressed
Verify whether the connection is made to the Host or the System Controller (SC)
If the response returned shows the ALOM is running a console session to the Host press the escape sequence #. to return to the System Controller prompt.
Log into the ALOM and issue the resetsc command and monitor output to verify no errors occur.

Example (on a T2000 system):

v4v-t2000d-sp-gm> resetsc
Are you sure you want to reset the SC [y/n]?  y
User Requested SC Shutdown
ALOM POST 1.0
Dual Port Memory Test, PASSED.
TTY External - Internal Loopback Test
TTY External - Internal Loopback Test, PASSED.
TTYC - Internal Loopback Test
TTYC - Internal Loopback Test, PASSED.
TTYD - Internal Loopback Test
TTYD - Internal Loopback Test, PASSED.
Memory Data Lines Test
Memory Data Lines Test, PASSED.
Memory Address Lines Test
Slide address bits to test open address lines
Test for shorted address lines
Memory Address Lines Test, PASSED.
Boot Sector FLASH CRC Test
Boot Sector FLASH CRC Test, PASSED.
Return to Boot Monitor for Handshake
ALOM POST 1.0
Status = 00007fff
Returned from Boot Monitor and Handshake
Loading the runtime image... VxWorks running.
Starting Advanced Lights Out Manager CMT v1.5.7
Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
Use is subject to license terms.
Current mode: NORMAL
Attaching network interface lo0... done.
Attaching network interface motfec0.... done.
Booting from Segment 1
SC Alert: Host detected fault, MSGID: SUN4-8000-4P
SC Alert: SC System booted.
Full VxDiag Tests
BASIC TOD TEST
Read the TOD Clock:        MON OCT 13 10:00:47 2008
Wait, 1 - 3 seconds
Read the TOD Clock:        MON OCT 13 10:00:49 2008
BASIC TOD TEST, PASSED
ETHERNET CPU LOOPBACK TEST
50 BYTE PACKET   - a 0 in field of 1's.
50 BYTE PACKET   - a 1 in field of 0's.
900 BYTE PACKET  - pseudo-random data.
ETHERNET CPU LOOPBACK TEST, PASSED
Full VxDiag Tests - PASSED
Status summary  -  Status = 7FFF
VxDiag    -          -  PASSED
POST      -          -  PASSED
LOOPBACK  -          -  PASSED
I2C       -          -  PASSED
EPROM     -          -  PASSED
FRU PROM  -          -  PASSED
ETHERNET  -          -  PASSED
MAIN CRC  -          -  PASSED
BOOT CRC  -          -  PASSED
TTYD      -          -  PASSED
TTYC      -          -  PASSED
MEMORY    -          -  PASSED
MPC885    -          -  PASSED
Please login:

You should now be able to log into the Network Management port

Product
Sun Fire T2000 Server
Sun SPARC Enterprise T2000 Server
Sun Netra T2000 Server
Sun Fire V215 Server
Sun Fire V245 Server
Sun Fire V445 Server

normalized, T2000, V215, V245, V445, MPC885, PowerPC, Davicom, Cisco, network, hang, ALOM, ALOM+, resetsc
Internal Comments
This document contains normalized content and is managed by the the Domain Lead(s) of the respective domains. To notify content owners of a knowledge gap contained in this document, and/or prior to updating this document, please contact the domain engineers that are managing this document via the "Document Feedback" alias(es) listed below:

Change History
Date: 2011-02-07
User name: Dencho Kojucharov
Action: Currency check
Comments: audited by Entry-Level SPARC KM Content Lead
The issue remains the same, due to the design of the NIC the issue can't be fixed, so there is nothing to update in the doc.

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