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HP Mellanox SX1018 Mellanox MLNX-OS User Manual for SX1018HP Ethernet Managed - Page 44

Switching to Partition with Older Software Version

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Step 6. Partition 2: 2010-09-19 16:52:50 Last boot partition: 1 Next boot partition: 2 No boot manager password is set. switch (config) # Set the boot location to be the other partition (next). Run: switch (config) # image boot next Rev 1.6.2 There are two installed images on the system. Therefore, if one of the images gets corrupted (due to power interruption, for example), in the next reboot the image will go up from the second partition. In case you are downloading to an older software version which has never been run yet on the switch, use the following command sequence as well: switch (config) # no boot next fallback-reboot enable switch (config) # configuration write Step 7. Reload the switch. Run: switch (config) # reload 4.2.3.3 Switching to Partition with Older Software Version The system saves a backup configuration file when upgrading from an older software version to a newer one. If the system returns to the older software partition, it uses this backup configuration file. Note that all configuration changes done with the new software are lost when returning to the older software version. There are 2 instances where the backup configuration file does not exist: • The user has run "reset factory" command, which clears all configuration files in the system • The user has run "configuration switch-to" to a configuration file with different name then the backup file Also note that the configuration file will be empty if the switch is downgraded to a software version which has never been installed yet. To allow switching partition to the older software version, in these cases above, follow the steps below. Step 1. Run the command: switch (config)# no boot next fallback-reboot enable Mellanox Technologies 44

Section	Page
Mellanox MLNX-OS™ User Manual for SX1018HP Ethernet Managed Blade Switch	1
Table of Contents	3
Document Revision History	6
About this Manual	7
1 Introduction	10
1.1 MLNX-OS Features	10
2 Getting Started	12
2.1 Configuring the Switch for the First Time - Installation Wizard	12
2.1.1 Re-running the Wizard	17
2.2 Starting The Command Line (CLI)	17
2.3 Starting the Web Interface	18
2.4 Licenses	20
2.4.1 Installing MLNX-OS License (CLI)	20
2.4.2 Installing MLNX-OS License (Web)	21
2.4.3 Retrieving Your Lost License Key	23
3 User Interfaces	25
3.1 Command Line Interface (CLI)	25
3.1.1 CLI Modes	25
3.1.2 Syntax Conventions	26
3.1.3 Getting Help	26
3.1.4 Prompt and Response Conventions	27
3.1.5 Using the Negation Form	28
3.1.6 Parameter Key	29
3.2 Web Interface	30
3.2.1 Setup Menu	31
3.2.2 System Menu	32
3.2.3 Security Menu	33
3.2.4 Ports Menu	33
3.2.5 Status Menu	34
3.2.6 IB SM Mgmt	34
3.2.7 Fabric Inspector	35
3.2.8 ETH Mgmt	36
4 System Management	37
4.1 Management Interface	37
4.1.1 Configuring Management Interfaces With Static IP Addresses	37
4.1.2 Configuring IPv6 Address on the Management Interface	37
4.1.3 Dynamic Host Configuration Protocol (DHCP)	37
4.1.4 Default Gateway	38
4.2 Software Management	38
4.2.1 Upgrading MLNX-OS Software	38
4.2.2 Deleting Unused Images	41
4.2.3 Downgrading MLNX-OS Software	42
4.2.3.1 Downloading Image	42
4.2.3.2 Downgrading Image	43
4.2.3.3 Switching to Partition with Older Software Version	44
4.2.4 Upgrading System Firmware	45
4.2.4.1 After Updating MLNX-OS Software	45
4.2.4.2 Importing Firmware and Changing the Default Firmware	45
4.3 File Management	46
4.3.1 Saving a Configuration File	46
4.3.2 Loading a Configuration File	47
4.3.3 Restoring Factory Default Configuration on a Switch System (Single Management Module)	47
4.4 Remote Logging	47
4.4.1 Configuring Remote Syslog to “info” Level	47
4.5 Event Notifications	48
4.5.1 E-mail Notifications	48
4.6 Diagnostics	49
4.6.1 Retrieving Return Codes when Executing Remote CLI Commands through SSH	49
4.7 User Management and Security	49
4.7.1 Authentication, Authorization and Accounting (AAA)	49
4.7.1.1 RADIUS	50
4.7.1.2 TACACS+	50
4.7.1.3 LDAP	50
4.7.2 Secure Shell (SSH)	51
4.7.2.1 Adding a Host and Providing an SSH Key	51
4.7.3 User Accounts	51
4.8 Network Management Interfaces	52
4.8.1 SNMP	52
4.8.1.1 Standard MIBs	52
4.8.1.2 Private MIB	54
4.8.1.3 Traps	54
4.8.1.4 Configuring SNMP	54
4.8.1.5 Configuring an SNMPv3 User	55
4.8.1.6 Configuring an SNMP notifications	55
4.8.2 MLNX-OS XML API	56
5 Ethernet Switching	58
5.1 Interface	58
5.1.1 Break-Out Cables	58
5.1.1.1 Changing the Module Type to a Split Mode	60
5.1.1.2 Returning to the Non-Split Mode	61
5.2 Link Aggregation Group (LAG)	61
5.2.1 Configuring Static Link Aggregation Group (LAG)	61
5.2.2 Configuring Link Aggregation Control Protocol (LACP)	62
5.3 VLANs	62
5.3.1 Configuring Access Mode and Assigning Port VLAN ID (PVID) to Interfaces	63
5.3.2 Configuring Hybrid Mode and Assigning Port VLAN ID (PVID) to Interfaces	63
5.3.3 Configuring Trunk Mode VLAN Membership	64
5.3.4 Configuring Hybrid Mode VLAN Membership	65
5.4 MAC Address Table	65
5.4.1 Configuring Unicast Static MAC Address	65
5.5 Spanning Tree	66
5.5.1 Rapid Spanning Tree Protocol	66
5.5.2 RSTP Enhancements	66
5.5.3 Disabling Spanning Tree Protocol	67
5.6 IGMP Snooping	67
5.6.1 Configuring IGMP Snooping	67
5.6.2 Defining a Multicast Router Port on a VLAN	68
5.7 Link Layer Discovery Protocol (LLDP)	69
5.7.1 Configuring LLDP	69
5.8 Quality of Service (QoS)	70
5.8.1 Priority Flow Control and Link Level Flow Control	70
5.8.2 Enhanced Transmission Selection (ETS)	72
5.9 Access Control List	73
5.9.1 Configuring Access Control List	74
5.9.2 ACL Actions	74
6 IP Routing	75
6.1 General	75
6.1.1 Interface VLAN	75
6.1.2 Equal Cost Multi-Path Routing (ECMP)	75

Match case Limit results 1 per page

Rev 1.6.2

Mellanox Technologies

Step 6.

Set the boot location to be the other partition (next). Run:

Step 7.

Reload the switch. Run:

4.2.3.3

Switching to Partition with Older Software Version

The system saves a backup configuration file when upgrading from an older software version to a

newer one. If the system returns to the older software partition, it uses this backup configuration

file. Note that all configuration changes done with the new software are lost when returning to

the older software version.

There are 2 instances where the backup configuration file does not exist:

•

The user has run “reset factory” command, which clears all configuration files in the

system

•

The user has run “configuration switch-to” to a configuration file with different name

then the backup file

To allow switching partition to the older software version, in these cases above, follow the steps

below.

Step 1.

Run the command:

Partition 2:

<downgrade version> 2010-09-19 16:52:50

Last boot partition: 1

Next boot partition: 2

No boot manager password is set.

switch (config) #

switch (config) # image boot next

There are two installed images on the system. Therefore, if one of the images gets cor-

rupted (due to power interruption, for example), in the next reboot the image will go up

from the second partition.

In case you are downloading to an older software version which has never been run yet

on the switch, use the following command sequence as well:

switch (config) # no boot next fallback-reboot enable

switch (config) # configuration write

switch (config) # reload

Also note that the configuration file will be empty if the switch is downgraded to a

software version which has never been installed yet.

switch (config)# no boot next fallback-reboot enable