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Asset ID: 1-71-1019501.1
Update Date:2011-01-25
Keywords:

Solution Type  Technical Instruction Sure

Solution  1019501.1 :   How to verify the network configuration for the Shelf Management Module (ShMM) on the Sun[TM] Netra CT900  


Related Items
  • Sun Netra CT900 Server
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  • Sun Netra CP3260 ATCA Blade Server
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  • Sun Netra CP3220 ATCA Blade Server
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  • Sun Netra CP3010 Blade Server
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PreviouslyPublishedAs
240146


Description
Resolving problems connecting to the Shelf Manager through the Network

Purpose and Scope

This document will take you through the steps to verify that the network configuration of the Shelf Manager Module (ShMM) of the Sun[TM] Netra CT900 is set up correctly to allow full network accessibility for management of the shelf.

Symptoms

  • Unable to connect to ShMM

  • Connection failed

  • Netconsole not working



Steps to Follow
These are the steps to follow to verify correct ShMM network configuration
  • Login to the active ShMM using the serial port

Refer to < Document: 1019404.1 > if problems are encountered making the serial connection.

  • Confirm you are connected to the "Active" ShMM

Issues the clia shmstatus command. If the command returns a status of "Backup", either connect to the serial port for the other ShMM or issue the clia switchover command.

Example:

# clia shmstatus

Pigeon Point Shelf Manager Command Line Interpreter
Running on the Backup Shelf Manager, with limited functionality
Host: "Backup"

# clia switchover

Pigeon Point Shelf Manager Command Line Interpreter
Running on the Backup Shelf Manager, with limited functionality
Sending switchover request to the Active Host

# clia shmstatus

Pigeon Point Shelf Manager Command Line Interpreter
Host: "Active"

#

  • Obtain the currently running ShMM network configuration

The network parameters can be setup in one of 3 different ways.

  1. Using the U-Boot Executive,

  2. Using the ShMM CLI

  3. Creating a shelf manger configuration file (shelfman.conf)

Details of all three methods are given in the Netra CT 900 Server Administration and Reference Manual http://download.oracle.com/docs/cd/E19217-01/index.html
Identifying what parameters are actually in use becomes very important.

Similarly there is more than one way to obtain the currently running network configuration on the ShMM.

  1. Issuing an ifconfig -a command from the ShMM Linux prompt
    will give details of all the different network interfaces, although the details for the eth0 interface do not include the gateway.

  2. Using the clia getlanconfig command
    will provide fuller details about the ethernet connection.

Example 1:

# ifconfig -a

cgtp0  Link encap:Ethernet HWaddr 00:00:00:00:00:00
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

cgtp1  Link encap:Ethernet HWaddr 00:00:00:00:00:00
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

eth0 Link encap:Ethernet HWaddr 00:50:C2:3F:D1:34
inet addr:129.156.205.4 Bcast:129.156.255.255 Mask:255.255.252.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1197865 errors:0 dropped:0 overruns:0 frame:0
TX packets:3084 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:105300137 (100.4 MiB) TX bytes:208047 (203.1 KiB)
Interrupt:27

eth1 Link encap:Ethernet HWaddr 00:50:C2:3F:D1:35
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:28

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.255.255.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:56 errors:0 dropped:0 overruns:0 frame:0
TX packets:56 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:3786 (3.6 KiB) TX bytes:3786 (3.6 KiB)

usb0 Link encap:Ethernet HWaddr 56:6B:D2:C2:0C:1F
inet addr:192.168.1.2 Bcast:192.168.1.255 Mask:255.255.255.128
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1045 errors:0 dropped:0 overruns:0 frame:0
TX packets:1054 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000 cgtp0
RX bytes:53978 (52.7 KiB) TX bytes:113316 (110.6 KiB)

usb1 Link encap:Ethernet HWaddr 8A:D2:DE:32:D4:04
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

vlan55 Link encap:Ethernet HWaddr 00:50:C2:3F:D1:34
inet addr:192.168.13.109 Bcast:192.168.13.255 Mask:255.255.255.224
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

#

Example 2:

# clia getlanconfig 1

Pigeon Point Shelf Manager Command Line Interpreter
PING 129.156.204.1 (129.156.204.1): 56 data bytes
84 bytes from 129.156.204.1: icmp_seq=0 ttl=128 time=40.5 ms
--- 129.156.204.1 ping statistics ---
1 packets transmitted, 1 packets received, 0% packet loss
round-trip min/avg/max = 40.5/40.5/40.5 ms
Authentication Type Support: 0x15 ( None MD5 Straight Password/Key )
Authentication Type Enables:
Callback level: 0x00
User level: 0x15 ( "None" "MD5" "Straight Password/Key" )
Operator level: 0x15 ( "None" "MD5" "Straight Password/Key" )
Administrator level: 0x15 ( "None" "MD5" "Straight Password/Key" )
OEM level: 0x00
IP Address: 129.156.205.4
IP Address Source: Static Address (Manually Configured) (0x01)
MAC Address: 00:50:c2:3f:d1:34
Subnet Mask: 255.255.252.0
IPv4 Header Parameters: 0x40:0x40:0x10
Primary RMCP Port Number: 0x026f
Secondary RMCP Port Number: 0x0298
BMC-generated ARP Control: 0x02
Enable BMC-generated ARP Response
Gratuitous ARP Interval: 2.0 seconds
Default Gateway Address: 129.156.204.1
Default Gateway MAC Address: 00:04:96:27:3a:d0
Backup Gateway Address: 0.0.0.0
Backup Gateway MAC Address: N/A
Community String: "public"
Number of Destinations: 16
Destination Type:
N/A
Destination Address:
N/Acgtp0
#

  • Check the eth0 network configuration parameters

Compare the eth0 settings for IP address "inet addr", Broadcast address "Bcast", Subnet Mask "Mask" and Default Gateway with the expected or defined values.

Please note: In the example given above the network does not use a standard class C network.

If the addresses need to be corrected, the simplest way is to use the clia setlanconfig command to modify the relevant parameters.

Example:

# clia setlanconfig 1 ip 129.156.205.4

Pigeon Point Shelf Manager Command Line Interpreter
IP set successfully

#

  • Verify eth0 connection

Use ssh or telnet to the ShMM IP address and verify that a login prompt if available.

If there is no response refer to <Document: 1019500.1> How to verify the internal network on a Sun Netra CT900 and <Document: 1019514.1>   How to verify the network connections required for shelf administration of the Sun Netra CT900

  • Check VLAN 55 configuration parameters

VLAN 55 is required when using the Netconsole feature to establish a console terminal session to a Node board from the ShMM.

Check the parameters as viewed by ifconfig -a
In the case of VLAN 55 the IP addresses are set up in the /etc/vlanconfig file.

If using firmware below R3U1 be aware of CR 6616996 which causes an incorrect Broadcast Address to to generated for VLAN 55.

  • Explanation of other entries in ifconfig -a output

eth1 is the second ethernet port on the ShMM which is available to be used for ShMM crossconnect. This allows access through the second switch to give a redundant connection between the ShMM and the Base Network. It requires Jumper E1 on the Netra CP3140 to be shorted between pins 1-2.

usb0 is used by the Active ShMM for communication to the Backup ShMM
usb1 is used by the Backup ShMM for communication to the Active ShMM
The configuration of these 2 interfaces should not be changed from the default.

cgtp0 and cgtp1 were introduced for use by the Netra High Availability Suite software in firmware R2.1. However they are not required and will go away at a future release of firmware.



Product
Sun Netra CT 900 Server
Netra CP3010 Board
Netra CP3020 Board
Netra CP3060 Board
Netra CP3240 Switch
Sun Netra CP3140 ATCA Switch Blade
Sun Netra CP3220 ATCA Blade Server
Sun Netra CP3260 ATCA Blade Server


Internal Comments
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normalized, ATCA, network, ShMM, CT900, CP3010, CP3020, CP3060, CP3220, CP3250, CP3260, CP3140, CP3240, Netra

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