Recovering from a System Failure | Znyx Networks bh5700 specification

Figure 12.2: ROM Devices in OpenArchitect

The boot ROM is located on device 0 and contains the OpenArchitect zmon application that operates as a boot loader and includes a device bootstring. Device 1 contains the application flash 1 image of the Linux operating system and the OpenArchitect overlay file system. Application flash 1 is the primary working image for the switch. Device 2 contains the application flash 2 that is an exact copy of application flash 1. You would only boot from this device if application flash 1 is corrupted and you need to restore the switch to the factory shipped configuration.

Recovering from a System Failure

If the switch does not function after you initially change or reconfigure the image, you have several options for recovering from an error. First, try to telnet into the switch. If you are successful, remember to run zsync after fixing the problem.

After attaching the system console cable, if the system boots, fix the problem that does not allow you to telnet to the box, run zsync, and reboot. The problem is likely to be in the configuration files contained in /etc/rcZ.. In order to telnet into the box, there must be a configured interface with a proper IP address. For example, zhp0 is configured with the IP address 10.0.0.42 in the factory default configuration.

If you cannot telnet, attach a console cable and Modem Eliminator Cable to the switch. A console cable ( PN A6900-63006) is included with each HP bh5700 ATCA 14-Slot Blade Server, and a Modem Eliminator Cable should be obtainable locally. You can also obtain the correct console cable from your Hewlett-Packard sales representative. Bring down the system and

Ethernet Switch Blade User's Guide

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Znyx Networks bh5700 manual Recovering from a System Failure

Contents

Manufacturing Part Number AD171-9603A June HP bh5700 Atca 14-Slot Blade Server Ethernet Switch Blade Ethernet Switch Blade Users Guide Release 3.2.2j Legal Notices About the Ethernet Switch Blade Manual Table of Contents Specifying Source and Destination IP Addresses Ethernet Switch Blade Users Guide Release 3.2.2j 100 Network File System NFS Client Configuration Network Time Protocol NTP Client ConfigurationCombining Queuing Disciplines Ethernet Switch Blade Users Guide Release 3.2.2j Ethernet Switch Blade Users Guide Release 3.2.2j Ethernet Switch Blade Users Guide Release 3.2.2j Table of Figures Fabric Switch Elements Init Script Flow Index of Tables Ethernet Switch Blade Users Guide Release 3.2.2j Ethernet Switch Blade Users Guide Release 3.2.2j High Performance Embedded Switching Overview of the Ethernet Switch Blade Powerful CarrierClass Features OpenArchitect Switch ManagementExtensible Customization of Routing Policies Ethernet Port Layout Base switch Quick Reference Ethernet Switch Blade Port ConfigurationFabric Switch Quick Reference Inter-switch Link ISL OpenArchitect Software Structure OpenArchitect Switch Environment Ethernet Switch Blade Users Guide Release 3.2.2j OpenArchitect Software Structure Connecting the Cables Port Cabling and LED IndicatorsConnecting to the Console Port Console Port Cabling LED Reference Out of Band Ports OOB Ports LED Reference Ethernet Switch Blade Users Guide Release 3.2.2j Surviving Partner High Availability Networking Zlmd Switch Replacement and Reconfiguration Example HA Switch Configuration Modifying zsp.conf on the Base switch Siblingaddresses zhp1 = 10.0.0.30, 10.0.0.31 netmask #vrrpmode blockcrossconnect Siblingaddresses zhp1=10.0.0.30master, 10.0.0.31 netmask You will see output similar to this Modifying zspvlan.conf on the Fabric Switch Ethernet Switch Blade Users Guide Release 3.2.2j Ethernet Switch Blade Users Guide Release 3.2.2j # zre names cannot be mixed on the same line ARP Ethernet Switch Blade Users Guide Release 3.2.2j Ethernet Switch Blade Users Guide Release 3.2.2j Configuring Surviving Partner Central Authority Secondary Can be modified to Two switches, two consoles Fabric Switch ConfigurationConnecting to the Fabric Switch Console OpenArchitect Configuration Procedure Example Configuration Scripts Default Configuration ScriptsChanging the Shell Prompt Tagging and Untagging VLANs Overview of OpenArchitect Vlan Interfaces Address. The S50layer2 script does the following Switch Port Interfaces Reboot the switch Using the S50layer2 ScriptRapid Spanning Tree Create a bridge device from the zhp device To Enable Rapid Spanning TreePort Path Cost Layer 3 Switch Configuration Usr/sbin/zl3d zhp0..47 Layer 3 Routing Protocols with GateD Using the S55gatedRip1 Script Sets the RIP1 protocol to open Defines the netmask used in the interface Or for RIP2 To Modify the GateD Scripts Egress Queues Class of Service COSIngress Classification Or for Ospf Scheduling Marking and Re-markingRunning zfilterd Ztmd Explained Restrictions on Implementation Introduction Iptables and filtering Packet Walk Firewall Flow Specifying Source and Destination IP Addresses Filter Rules SpecificationsSpecifying Protocol Specifying an Icmp Message Type Specifying an Interface Specifying TCP flagsFilter Rule Targets Supported Targets Options with any of these Zaction parameters Extensions to the default matchesZaction Examples Send all tcp packets arriving on zhp5 out port Fifo Queues pfifo and bfifo disciplines Forwarding Chain supports all of themOutput should display the following Root HandlePfifo limit Prio and WRR queues Ethernet Switch Blade Users Guide Release 3.2.2j Combining Queuing Disciplines U32 Filter Handle Semantics Cops Common Open Policy Service OpenArchitect PEP Protocol Architecture Sample configuration file is listed below Using pepd Setting the Root Password Fabric Switch AdministrationAdding Additional Users Name Service Resolution Setting up a Default Route Network Time Protocol NTP Client Configuration Network File System NFS Client Configuration Removing the # sign NFS Server Configuration Connecting to the Switch Using Tftp Connecting to the Switch Using FTPTftpd Server Configuration Supported Mibs Snmp Agent Supported MIBs Supported Traps Supported Traps Snmp and OpenArchitect Interface DefinitionsOpenArchitect, defines three types of devices Link and Snmp Status Snmp ConfigurationIfStackTable Entries Snmp Applications Port MirroringResponse You can alter this behavior by specifying Link Event Monitoring Link and LED ControlTo check the status of a link To check the status of all links Overview of the OpenArchitect switch boot process Fabric Switch Maintenance Boot Flow Chart Recovering from a System Failure Modifying Files and Updating the SwitchSystem Boots with a Console Cable Saving Changes Booting with the -ioption Booting the Duplicate Flash Image System Hangs During BootReboot the system Upgrading the OpenArchitect Image Upgrading or Adding Files Upgrading the Switch DriverExcluding Saving Files to Flash Image file will be something named similar to the following Using apt-get Connecting to the Base Switch Console Base Switch ConfigurationOpenArchitect Configuration Procedure Example Configuration Scripts Default Configuration ScriptsChanging the Shell Prompt Files into flash for reloading Overview of OpenArchitect Vlan Interfaces Multiple VLANs Linux Then, bring up the interface with ifconfig1M Rapid Spanning Tree Layer 3 Switch Configuration Zconfig zhp1 vlan2=zre5..8 zconfig zre5..8=untag2 Layer 3 Switch Using the S50multivlan Script Layer 3 Switch Using Multiple VLANs Multiple Vlan Configuration 10.0.0.42-10.0.3.42, assigns the netmask and brings them up Layer 3 Routing Protocols with GateD Shuts off sending and receiving packets from all interfaces To Modify the GateD Scripts Egress Queues Class of Service COSIngress Classification Marking and Re-marking ZcosScheduling Restrictions on Implementation Running zfilterdOutput Port Field values Action that will take place. For example, the rules Iptables and filtering Firewall Flow Specifying Source and Destination IP Addresses Icmp-type ping Zaction Strict Priority Qdisc Tc Traffic ControlThese are described in the Linux packet filtering Howto at Znyx Forwarding Chain supports all of them Weighted Round Robin Qdisc Fifo Qdiscs Using Filters to Direct Packets to a COS QueueProtocol ip Protocol all Protocol arpMatching Specific Ingress Ports Advanced Filtering Policing Examples Policing ActionsSpanning tree Bpdu packets go in COS queue 6, no limit 82+ U32 match selectors used in filtersTo mirror only in-profile packets to port 3, use U Match Selectors Match selectors Ztmd zqosd Ethernet Switch Blade Users Guide Release 3.2.2j U32 Filter Cops Common Open Policy Service Protocol Architecture OpenArchitect PEP Using pepd Pepid Where Setting the Root Password Base Switch AdministrationAdding Additional Users Name Service Resolution Setting up a Default Route Network File System NFS Client Configuration Connecting to the Switch Using FTP NFS Server Configuration Tftpd Server Configuration Connecting to the Switch Using TftpSnmp Agent Supported Mibs Snmp and OpenArchitect Interface Definitions Snmp Configuration Physical Link Status on Base Switch Snmp Applications Port Mirroring Link Event Monitoring Link and LED Control Overview of the OpenArchitect switch boot process Base Switch Maintenance Booting up Process Flow Recovering from a System Failure Modifying Files and Updating the SwitchSystem Boots with a Console Cable Saving Changes ∙ Reboot the system Booting with the -i option Booting the Duplicate Flash Image System Hangs During BootUpgrading the OpenArchitect Image Upgrading or Adding Files Upgrading the Switch Driver Using apt-get Ethernet Interfaces Base Interface Hub SystemManagement Interfaces Console port. An RS-232 to RJ-45 adapter is required Fabric Interface Hub System Base Interface Out-of-Band Ethernet Connection Fabric Interface Serial Ports Fabric Interface Out of Band Ethernet Connection Ethernet Switch Blade Activation States Diagnosing a Failed Ethernet Switch Blade Activation FRU State HotSwap Healthy Solution LED Status Verifying Communications Between the ShMM and Switch Accessing the ShMMFRU State HotSwap Healthy Solution Troubleshooting States Checking the ekey Status From the Shelf Manager Analyzing Mstate information for the switch Clia board -v Troubleshooting a Failed OpenArchitect Load OpenArchitect Boot Process Recovering from a System Failure Properly attach the console cable Booting Without the Overlay File Booting the Duplicate Flash Image Ethernet Switch Blade Backplane Interfaces zre Ports Network Configuration ProblemsInterface Overview Physical Interfaces Port, Layer 2 Switching, single Vlan Default Base Interface ConfigurationAdditional Interfaces Default Base Interface Network Diagram Default Fabric Interface Configuration Linux Networking Environment Interfaces Ifconfig Default Screen Output for the Base Interface Problem Solution Configuration TroubleshootingDetermining ekey status for a specific slot Auto Enable Internal Fault Link Port Status Link Speed Pause Faults1000fd Disable External Fault Zre Link Status for a single port Querying Base Interface ekey StatusExample Output Link Status for a range of ports Querying Fabric Interface ekey Status Ethernet Switch Blade Users Guide Release 3.2.2j Connecting to Devices with Fixed Port Speeds Network Connectivity Troubleshooting No ConnectionExternal Fault LED Diminished Network Throughput Network Tests Ping Test Traceroute Test Isolating Hardware Failures Switch Chip U59 Isolation Transformer Zone 3 Atca Connector Switch Chip U60Isolation Transformer ZMC Daughter Board Inside View Hardware Subsystem Testing the FlashROMs Link Status for a single port Testing the Switch FabricLink Status for a range of ports Testing the onboard RAM Testing the Control Processor INT FLT LED activity Hardware Fault Ethernet Switch Blade Users Guide Release 3.2.2j Spontaneous Failover Activity High Availability TroubleshootingUnexpected Fail-back Activity Checking the switch firmware version Switch Firmware OverviewFollowing output is shown for the 3.0 Base Interface Base Interface Fabric Interface BootLoader Firmware Upgrade Updating the Switch FirmwareOpenArchitect Firmware Upgrade Ipmc Firmware Upgrade Restoring the Factory Default Configuration Before Calling Support ROM Devices in OpenArchitect Appendix a Fabric Switch Command Man Pages Vrrpconfig Configure and control the running vrrpd Vrrpconfig See Also Vrrpd Virtual Router Redundancy Protocol Daemon Vrrpd Change the virtual MAC address from Vrrpconfig Zbootcfg Zbootcfg -d 1 Zconfig Configures the OpenArchitect switch Zconfig Global Statement Syntax Global StatementsTrunk Interface Statements Trunk interface syntax Examples of trunk interface statements Zrl0=ip sourceaddress, ip destinationaddress Is the same asThis statement creates a trunk containing three ports Teardown statement uses a colon instead of an equals sign Examples of Network Interface Statements Network interface actions may include Examples of Port Interface Statements Port Interface Statements This statement is equivalent to the following three lines Wildcards This is equivalent to Zl3d Zcos Zcos class of service queue control Hostname Prio RR WRR DRR port list Zcos -n 50,50,50,50,75,75,75,75 zre0..19 Zdog Options Zfilterd Zflash Zbootcfg Zl2, zl2mc, zl3host, zl3net, zvlan Zl2 -m 00c095450000 Following command displays all entries of the zl2 table Following command deletes the above entry Zgvrpd Zgvrpd -t zhp0 Zl2d Zl2d Layer 2 daemon for the OpenArchitect switchStart stop Operations Zl3d Zl3d Layer 3 daemon for the OpenArchitect switch Zl3d zhp1 zhp2 zhp3 Zlc − link and LED control Zlc To query the settings of a particular port Ifconfig8 Zlmd − monitor link changes or hot swap events Zlmd Zlmd zre1..4=/usr/sbin/prtchange Zlogrotate To start zlogrotate with the default valuesZlogrotate − Rotates log files Zmirror Set packet mirroring on an ingress or egress port Zmirror Zmirror is cumulative Zmnt − Expands the read/write files onto the RAM disk Zmnt Restored overlay will be used upon the next reboot Zpeer On the fabric switch the following command would returnPeer is not properly functioning Set debug level to level Display complete status of zpeer Healthy state, the query will return the backup state Be also reset Zqosd Ztmd, tc8, zfilterd Zrc Packet rate control Zrc Zreg Operands Zrld Znyx redirector daemon Zrld Zsnoopd Zsnoopd Zspconfig configure and start surviving partner Zspconfig Configuration File Ethernet Switch Blade Users Guide Release 3.2.2j Ethernet Switch Blade Users Guide Release 3.2.2j Rain link zhp1, zre1..4 Output Files Zconfig, ifconfig, vrrpd, dhclient, dhcpd Zstack Zstack Configures the OpenArchitect switch stacking Stack Port Association Stack Creation Stack Control Statements Stack Configuration Statements Are supported Zre lists. Example of stack0..3 representing stacks 0, 1, 2 Switch Blade Ztats − Display statistics and information about switchZtats Zsync − Saves changes to the flash Zsync To zsync only the hosts file Restored overlay will be loaded upon the next reboot Ztmd Zqosd, iptables8, tc8, zfilterd Brctl8 Brctl Bridge and Spanning Tree Protocol administration Brctl8 replaces the older brcfg tool Setportprio bridge zre# priority Zconfig, zl2d Appendix B Base Switch Command Man Pages = Master Examples Following options are supported by vrrpd Lower Case ‘m’ the time is specified in milliseconds. See Also Specifies the ROM device from which to boot. The dev Zbootcfg -d ZhpN for example, zhp0 Trunk interface actions Examples of trunk interface statements Network interface actions may include Zhp0 vlan100 = zre1,zre10,zre11,zre13 Tag are given the Vlan tag with the VID number 1, enter This is equivalent to See Also Zcos Limit on dynamic pool usage, in bytes, reset % port list Prio RR WRR DRR port list Examples Zdog Options Zffpcounter First example queries all FFP counter values Now using zffpcounter to displayNext example clears all FFP counter values Next example queries ports 2-7, 15, Counter 19 Counter 20 Counter 21 Zfilterd -d level -p port -f -l -i pid -o pid Zflash Zbootcfg Std 802.1D, 1998 Edition Zgmrpd Zgmrpd -t zhp0 Zgr Following command displays all entries of the zl2 table See Also Level Sets the level of debugging output required by zgvrpd. Enable Gvrp on the set Start stop Operations Zl3d -h hostname -t msecs -b -e -l -n -d level iface Zl3d zhp1 zhp2 zhp3 Zlc Global Settings Zlmd Examples Zlogrotate Zmirror Zmirror zre1 zre10 zmirror zre2 zre11 See Also Expanded, or the file to which the tar image is saved Restored overlay will be used upon the next reboot Zpeer Options See Also Zqosd Ztmd, tc8, zfilterd Number of packets per time period above which Zreg Echo 0x80000640 zreg -w Zrld Zsnoopd No router multicast traffic. Default is 260 seconds Zpeer peer state query Time to wait in seconds before giving up on Configuration File Ethernet Switch Blade Users Guide Release 3.2.2j Ethernet Switch Blade Users Guide Release 3.2.2j RAINlink zhp1, zre1..4 Boardsynchronizationmode basic Zconfig, ifconfig, vrrpd, dhclient, dhcpd, zpeer Ethernet Switch Blade Users Guide Release 3.2.2j Specifies the remote hostname to configure. By Stack0 ppa0 local Stack1 ppa1 local Stack Configuration Statements Wildcards See Also Zsync Files Ztmd Zqosd, iptables8, tc8, zfilterd Important This option must only be executed by zl2d Ethernet Switch Blade Users Guide Release 3.2.2j Zconfig, zl2d Appendix C Intelligent Platform Management Interface ISwitch-ShMC InteractionStates Peripheral Management Controller Functional Support PMC Controller Support Command Code Sensor # StatusTable C.1. Ipmi M States Table C.2 PMC Controller Support Sensor Reading Example Standard Ipmi Command GetSensorReadingTable C.3 GetSensorReading Table C.4 GetSensorResonse Standard Ipmi Response GetSensorReading Structure of Standard Ipmi Responses From PMC to BMC Structure of Standard Ipmi Commands From BMC to PMC Field Replaceable Unit Inventory Device Event GeneratorIpmb Event message format Table C.8 Seeprom Space Spare Seeprom Space AllocationIpmb Override Status Data Table C.9. Ipmb Override Status Data Dhcp Index NFS NTP Tc 62 Ztmd 301 Zvlan 179 ZX4920.MIB 333