isr ring upgrade procedure v1_0

ISR Ring Upgrade Procedure

VERSION 1.0

TYPE Technical Procedure

DESCRIPTION Procedure to upgrade ISR ring topology from firmware version 2.1.X – 3.0.X to 3.1.X.

Name Date AUTHORS: Alexis Daravalis, Technical Support Engineer 17/02/12 REVIEWED: Yiannis Karagiannis, Technical Support Manager 18/02/12 APPROVED: Yiannis Karagiannis, Technical Support Manager 18/02/12

© 2012 Intracom Telecom of 40 Version 1.0 - 17/02/12 Confidential

CHANGE HISTORY

Version Affected Paragraphs Change Description Date

1.0 Created All 17/2/2012



Contents

Contents.........................................................................................................................3

Introduction...................................................................................................................4

Prerequisites ..................................................................................................................5

A. Check HW Compatibility .......................................................................................... 5

B. Check Controller S/N & P/N ..................................................................................... 6

C. Check Link Functionality .......................................................................................... 6

D. Check Ring Functionality .......................................................................................... 6

Configuration Prior to Upgrade...................................................................................7

A. Ethernet NMS............................................................................................................. 7

B. Ethernet Payload ........................................................................................................ 8

C. Spanning Tree Convergence...................................................................................... 9

Ring Upgrade ..............................................................................................................10

A. Modem Upgrade....................................................................................................... 10

B. Firmware Upgrade................................................................................................... 11

C. Element Reboot......................................................................................................... 12

D. Change Mode File (Optional).................................................................................. 13

Configuration after the Upgrade................................................................................14

A. Ethernet NMS........................................................................................................... 14

B. Ethernet Payload ...................................................................................................... 15

C. Spanning Tree Convergence.................................................................................... 16

D. SNCP-Like (only with supported Master IO)........................................................ 17 i. Frame Parity Alarm.............................................................................................................17 ii. E1 Protection Switching......................................................................................................18 iii. SNCP-Like Mapping...........................................................................................................18

E. ODU Shutdown on IDU Over-temperature Condition......................................... 19

Appendix......................................................................................................................20

I. Ring Protection Check ............................................................................................. 20

II. Modem Upgrade....................................................................................................... 22

III. Firmware Upgrade............................................................................................... 26

IV. Roll Back Firmware............................................................................................. 32

V. Change Mode File..................................................................................................... 38



Introduction This procedure describes the steps and configuration required to upgrade properly an ISR ring topology from firmware version 2.1.X – 3.0.X to 3.1.X. The main purpose of the upgrade is to enable the new features introduced in the 3.1.X version.



Prerequisites

A. Check HW Compatibility Even though the upgrade procedure described is supported by all Master IO modules the SNCP-Like feature is only supported by the Master IO in the table below. If a ring contains a Master IO not mentioned below then the SNCP-Like configurations (mentioned later on) should be omitted.

Follow: ISR��Administrator ��Device Information��Serial Number

Example above with a 42 Channel T1/E1 Master IO Module.

42 Channel Master IO



B. Check Controller S/N & P/N Make sure that the system can read the proper S/N & P/N of the controller. In the example below the S/N of the controller is corrupted (normal S/N would be: CFxxxxxxxx). If the user continues with the upgrade procedure without correcting this issue it would result to a problematic behavior of the ISR.

If the users encounter such a case they should contact Intracom Telecom for troubleshooting and not proceed to upgrade

C. Check Link Functionality It is essential to ensure the proper operation of the links (forming the ring) before the upgrade procedure begins:

• Ensure that the links follow the RF planning • Ensure that there are no alarms on the systems • Fill the Check List.

D. Check Ring Functionality Connect to all elements of the ring and:

• Ensure that the links have been established in an EAST-WEST topology. • Follow ISR��Link Configuration ��Data Link��Ring Routing and

ensure below settings:

• Check ring protection functionality.

Check Appendix I (Ring Protection Check)



Configuration Prior to Upgrade Before the upgrade procedure begins it is essential to ensure proper configurations to both Ethernet NMS and Payload settings. In the below example we examine the configuration required in a ring of 8 elements were the Element 1 is the Aggregation Node. Since this is a ring topology the STP (Spanning Tree Protocol) should be enabled.

A. Ethernet NMS • Configure the ISR Element 1 as the Root Bridge. Follow : ISR��Administrator ��Network Configuration��Ethernet NMS Set the Bridge Priority to Root.



• Set the Bridge Priority to Normal of all remaining ISR Elements.

B. Ethernet Payload • Configure the ISR Element 1 as the Root Bridge.

Follow: ISR��Administrator ��Network Configuration��Ethernet Payload Set the Bridge Priority to Root.

• Set the Bridge Priority to Normal of all remaining ISR Elements.



C. Spanning Tree Convergence If the above configuration has been set correctly then both the NMS & Data Statistics pages of the furthest Element (in example above the ISR Element 5) from the Root (Aggregation Node) should have the STP Status of one of the Radio Link Ports set to Blocking state and the other set to Forwarding . Follow: ISR��Analysis��Statistics��NMS Switch & Data Switch

In the NMS & Data Switch of the remaining ISR Element the STP Status of all the Radio Link Ports should be in Forwarding state.

If the STP is not working as described above further investigation is needed before the upgrade can be performed. Please contact Intracom Telecom for troubleshooting.



Ring Upgrade In order to make the upgrade procedure faster two users should connect to the Aggregation Node of the ring and perform the steps simultaneously.

A. Modem Upgrade For minimizing upgrade time the users can upload modem firmware at link partners simultaneously using the i-porter tool. In the example User1 is upgrading the West Modem of Element 5 and User2 is upgrading the East Modem of Element 4, thus working on the same link. This procedure can be performed to all links until all modems are upgraded. Check Appendix II (Modem Upgrade)



B. Firmware Upgrade Using the i-porter tool and using the appropriate package (single bank) upload the ISR elements with the following order:

• User2 should upload the package to the Elements 5, 4, 3 and 2.

Do not perform IDU reboot. • User1 should upload the package to the Elements 6, 7, 8 and 1.

Do not perform IDU reboot.

Check Appendix III (Firmware Upgrade)

The general notion is for the users to simultaneously perform the upgrades from furthest element to nearest. User1 should perform the last upgrade to Element1 after User2 has finished with Element 2.



C. Element Reboot When all elements have been upgraded then IDU reboots should be performed.

• User1 should perform IDU reboots to the ISRs in the following order: 5,6,4,7,3,8,2, and 1 (furthest to nearest).

• Due to the fact the E1s will be lost for ISRs working at different versions those reboots should be performed quickly .

• Please note that after each IDU reboot the connectivity to that ISR and the ISR behind it will be lost.

• The connectivity to whole ring will be re-established when the last ISR in the ring, in this case ISR Element 1 completes the reboot action.

• After all elements are rebooted, the traffic should be passing successfully. If not then:

� Check that the configuration has not been altered. � Perform previous reboot sequence a second time.

• If troubleshooting fails roll back to previous firmware version. Check Appendix IV (Roll Back Firmware)



D. Change Mode File (Optional) Steps for changing the Modes file.

• Upload the modes file (single bank) to all the ISR Element. • Toggle the Mode File to each ISR Element (making the new Mode Active)

and perform link configuration. The procedure should be performed on the ISRs in the following order: 5,6,4,7,3,8,2, and 1 (furthest to nearest). Do not perform simultaneous link reconfiguration. Please ensure that the link configuration is completed on an ISR prior to performing link configuration on another ISR.

• User1 should perform IDU reboots to the ISRs in the following order: 5,6,4,7,3,8,2, and 1 (furthest to nearest).

Check Appendix V (Change Mode File)



Configuration after the Upgrade After the end of the upgrade procedure the STP (Spanning Tree Protocol) should be changed to RSTP (Rapid Spanning Tree protocol). User should set appropriate setting for the new protocol.

A. Ethernet NMS • Configure the ISR Element 1 (Aggregation Node) as below. Follow : ISR��Administrator ��Network Configuration��Ethernet NMS



• Configure the furthest ISR (in example Element 5) as below. Follow : ISR��Administrator ��Network Configuration��Ethernet NMS

• Configure the rest ISR as below. Follow : ISR��Administrator ��Network Configuration��Ethernet NMS

B. Ethernet Payload • Configure the ISR Element 1 (Aggregating Node) as below.

Follow: ISR��Administrator ��Network Configuration��Ethernet Payload .



• Configure the furthest ISR (in example Element 5) as below. Follow : ISR��Administrator ��Network Configuration��Ethernet Payload.

• Configure the rest ISR as below. Follow : ISR��Administrator ��Network Configuration��Ethernet Payload.

C. Spanning Tree Convergence If the above configuration has been set correctly then both the NMS & Data Statistics pages of the furthest Element (in example above the ISR Element 5) from the Root (Aggregation Node) should have the STP Status of one of the Radio Link Ports set to Blocking state and the other set to Forwarding . Follow: ISR��Analysis��Statistics��NMS Statistics & Data Statistics



In the NMS & Data Statistics of the remaining ISR Element the STP Status of all the Radio Link Ports should be in Forwarding state.

If the STP is not working as described above further investigation is needed. Please contact Intracom Telecom for troubleshooting.

D. SNCP-Like (only with supported Master IO) By integrating the SNCP-Like functionality into the E1 switching any incoming E1 can be protected across any two available paths

i. Frame Parity Alarm The Frame Parity Alarms detects card interconnection problems due to hardware deterioration (corrosion between framer and modem).

• Enable Frame Parity Alarm Follow: ISR��Link Configuration ��Data Link��Frame Parity Stage2 Detect.

• Configure like below:

If only E1 are used Clear Holdoff can be set to 10.



ii. E1 Protection Switching When enabled, the E1 Protection Switching will induce an AIS alarm on the E1s if a certain BER threshold is exceeded.

• Enable E1 Protection Sitching Follow: ISR��Link Configuration ��Data Link��E1/T1 Protection Switching.

Configure like below:

iii. SNCP-Like Mapping To configure SNCP-Like protection, the user must enter the protected “couplets” in the E1/T1 Channel Map screen. Follow: ISR��Link Configuration ��Data Link��E1/T1 Channel Map. Replace:

Rx,Rx with Ex,Wx (when the E1 is not add/dropped).

Rx,MAx with Ex:Wx,MAx (when the E1 is add/dropped to Master IO).

Rx,EXx with Ex:Wx,EXx (when the E1 is add/dropped to Expansion IO)

Rx,STxxx with Ex:Wx,STxxx (when the E1 is add/dropped to STM1 of

Enhanced IO)

Minimize down time by having the E1 channel map page for all the ISRs open and the channel maps entered in the WEB browser and then update all the ISRs one after another. This should help reduce the outage time due to manual entry.

The SNCP-Like and E1/T1 Protected Ring mappings are not interoperable. All ISR in a ring must use either the SNCP-Like mapping or the E1/T1 Protected Ring mapping.



E. ODU Shutdown on IDU Over-temperature Condition The ISR provide ODU shutdown on IDU over-Temperature condition. Follow: ISR��Analysis��Alarm��Threshold.

Set: Disable ODUs at Max Temp: Enable

Max SDIDU Temperature: 60 (or according to customer needs). “Temperature threshold” ODU Disable Duration: According to customer needs. “Hold off delay between the time when the IDU is determined to be above the temperature threshold and the time when the ODUs are shutdown”.

ODU Enable Duration: According to customer needs.

“Hold off delay between the time when the IDU is determined to be 10 degrees below the temperature threshold and the time when the ODUs are re-enabled”



Appendix

I. Ring Protection Check The purpose of the test is to determine if the ring protection between the ISR elements is working properly. Ethernet Follow: ISR��Analysis��Statistics��NMS Switch & Data Switch on all elements. By monitoring the Data Switch Statistics screen determine which Radio Port is blocked and identify the path route (path direction).

� If West is blocked then traffic travels from East �� West Modem. � If East is blocked then traffic travels from West �� East Modem

E1 By default (if there are no issues on the ring) the traffic flows from East � West Modem.



If we consider a ring were traffic flows from East�West Modem (default path) then:

• Mute the East or West radio on ISR Element 4 so as to create traffic outage. Verify that the traffic is forwarded to Elements 5-8 through protection path.

• Remove the mute from the East or West radio of ISR Element 4. Now, the traffic should revert to default path.



II. Modem Upgrade Find out the part number of the modems. Follow: ISR��Administrator ��Device Information��Serial Number

Launch iPorter by selecting in Start Menu: Start > All Programs > ISR > iPorter . Upon successful launch, the following screen is displayed.

• Select Upload Miscellaneous File • Click Next



The following screen is displayed

• Click Browse to find the Modem firmware to be used in this upgrade.

• In the folder of the new SW_Version select the folder containing the Part Number of the modem.




Select:

i. East_modem_fw.bz2 to upgrade the East Modem. ii. Weast_modem_fw.bz2 to upgrade the West Modem. In case of unified Modems upgrade the FPGA file as well.

• Click Next




• Type the IP address of the ISR unit whose firmware you want to upgrade and the login and password provided by INTRACOM TELECOM in the respective boxes. Click Next to start the upgrade.


• Click Finish to complete the modem firmware upgrade.



III. Firmware Upgrade Launch iPorter by selecting in Start Menu: Start > All Programs > ISR > iPorter . Upon successful launch, the following screen is displayed.

• Select Upgrade Firmware • Click Next


• Click Browse and select the ISR firmware package to be used in this upgrade.




• Open the iPorter folder

Select:

i. IN-3.1.xxz.pkg this package performs single bank upgrade and has the safeguard for application version previous to 2.1.xx.

ii. IN-3.1.xxs.pkg this package performs a single bank upgrade when upgrading from application version 2.1.xx




• Select No Summary Report (Summary Report is optional) • Click Next.


• Type the IP address of the ISR unit whose firmware you want to upgrade and

the login and password provided by INTRACOM TELECOM in the respective boxes. Click Next.




• Select SNMP Version 2 from the drop-down list and the Write Community String provided by INTRACOM TELECOM. Then click Next.

• iPorter displays the upgrade plan for review. Use the scroll bars at the right and bottom to reveal all text. If you agree with the planned upgrade, click Next to start loading the new firmware.



During the upgrade process, a status bar will be displayed showing the progress of the firmware upgrade process.

The firmware file transfer status is indicated by text messages in the Firmware File Transfer Status screen.

• At the end of the ISR unit upgrade process, the following message window appears prompting you to reboot to complete the ISR unit firmware upgrade. Click Sip Next Action.




• In the window that appears, click Finish to complete the firmware upgrade. Launch the web browser, type the IP address of the ISR unit, open the Reprogramming screen and ensure that the upgraded firmware files exist only on one of the banks. Follow: ISR��Administrator ��Maintenance��Reprogramming



IV. Roll Back Firmware Steps for rolling back to the previous firmware: Follow: ISR��Administrator ��Maintenance��Reprogramming on all elements. Standard Images Roll Back

• Toggle the Application, Controller FPGA, Master IO FPGA and ODU images making the older firmware active.

• The screen should look like this:

The Kernel and the Bootloader images are directly associated. Any mismatch could render the element unbootable.

1. Select the Images

2. Toggle the Images



Expansion IO Downgrade (if existing) If un Expansion IO exist then the user has to manually downgrade its firmware. Follow: ISR��Administrator ��Device Information��Serial Number Find out the part number of the Expansion IO Module.

Launch iPorter by selecting in Start Menu: Start > All Programs > ISR > iPorter . Upon successful launch, the following screen is displayed.

• Select Upload Miscellaneous File • Click Next.




• Click Browse to find the Expansion IO firmware to be used in this downgrade.

• In the folder of the previous SW_Version ( the one you need to downgrade to) select the folder containing the Part Number of the Expansion IO.




• Select the file

• Click Next




• Type the IP address of the ISR unit whose firmware you want to downgrade and the login and password provided by INTRACOM TELECOM in the respective boxes. Click Next to start the upgrade.


• Click Finish to complete the Expansion IO firmware downgrade.



System Reboot User1 should perform IDU reboots to the ISRs in the following order: 5,6,4,7,3,8,2, and 1 (furthest to nearest). Aggregating Node Configurations If the Aggregation Node of the ring contains un Enhanced IO then the STM Mux DEMUX setting need to be reentered. Follow: ISR��Link Configuration ��Data Link��STM Mux Demux Set the following:

If after reentering the STM Mux Demux settings the E1 are not forwarded correctly reboot once more the Aggregation Node.



V. Change Mode File Launch iPorter by selecting in Start Menu: Start > All Programs > ISR > iPorter . Upon successful launch, the following screen is displayed.

• Select Upload Modes File • Click Next


• Click Browse to find the new Modes file to be used.



Find the folder containing the new Modes File and select it.


• Click Next




Type the IP address of the ISR unit whose firmware you want to upgrade and the login and password provided by INTRACOM TELECOM in the respective boxes. Click Next to start the file transfer.

• Click Finish to complete the Modes File transfer.

isr ring upgrade procedure v1_0

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