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This chapter provides procedures for changing the default transmission parameters and performance monitoring (PM) thresholds for Cisco ONS 15454 SDH electrical and optical cards. The chapter also provides procedures for converting the E1-N-14 and DS3i-N-12 cards from 1:1 to 1:N protection. (E3-12 cards only support 1:1 protection.)
Setting up CTC for performing pointer justification count monitoring is described in "SDH Performance Monitoring."
Setting up CTC for intermediate-path performance monitoring is described in "SDH Performance Monitoring."
Ethernet card provisioning is described in "Ethernet Operation."
Table 7-2 Card Provisioning Tasks
Because much of the electrical and optical card provisioning involves PM thresholds, refer to the Cisco ONS 15454 SDH Troubleshooting and Maintenance Guide for definitions and general information about ONS 15454 SDH performance monitoring parameters. In addition, refer to the ITU-T G.707, G.783, and G.841 documents. The default thresholds delivered with ONS 15454 SDH cards are based on specifications contained in those documents.
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Note For information about creating protection groups, see the 3.6 Creating Card Protection Groups 3-26 in "Node Setup." For circuit creation procedures, see "Circuits and Tunnels." |
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Note You start Cisco Transport Controller (CTC) by using your web browser and typing the IP address of the ONS15454 SDH shelf to be controlled into the address bar. You have to use a login with Provisioning or Superuser authority. Starting the CTC can take a few minutes depending on the speed of your IP connection to the ONS15454 SDH shelf. After having typed the IP address into the address bar, CTC will start with windows like the ones as shown in Figure 7-1, Figure 7-2, and Figure 7-3. |
Downloading CTC from the ONS 15454 SDH node can take up to a few minutes, depending on the speed of the web connection to the node to be controlled.
The ONS 15454 SDH Front Mount Electrical Connection (FMEC) cards are feedthrough cards that enable front access for the interfaces. They do not require any parameters to be set during provisioning. The only internal data that these cards have is inventory data.
The ONS 15454 SDH electrical cards are preprovisioned with settings that you can modify to manage transmission quality.
When you open a card in CTC node view (which means double-click on this card) and choose the Provisioning tab, the following subtabs are commonly displayed:
As an example, Figure 7-4 shows the window with the choices for an E1-N-14 card.
Table 7-3 provides an overview of E1-N-14, E3-12, and DS3i-N-12 parameters. An X means the item is available for the card. A dash means the item is not available for the card.
Table 7-3 E1, E3, and DS-3 Card Provisioning Overview
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The ONS 15454 SDH E-1 cards (E1-N-14) provide fourteen E-1 ports. Each port operates at 2.048 MBits/s (Mbps). Default thresholds are based on recommendations in ITU-T G.841.
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Step 2 Click the Provisioning tab (Figure 7-4).
Step 3 Depending on the setting you need to modify, click the Line, Line Thresholds, Elect Path Thresholds, SDH Thresholds, or Alarm Behavior tab.
Step 4 Modify the settings shown in Table 7-4. For drop-down lists, choose an item from the list. For numerics, double-click the field and type the new number.
Step 6 Repeat Steps 3 to 5 for each subtab that has parameters you want to provision.
Table 7-4 E1-N-14 Card Parameters
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The ONS 15454 SDH E3-12 card provides twelve E3 ports. Each port operates at 34.368 MBits/s (Mbps). Default thresholds are based on recommendations in ITU-T G.841.
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Step 2 Click the Provisioning tab.
Step 3 Depending on the setting you need to modify, click the Line, Line Thresholds, Elect Path Thresholds, SDH Thresholds, or Alarm Behavior tab.
Step 4 Modify the settings shown in Table 7-5. For drop-down lists, select an item from the list. For numerics, double-click the field and type the new number.
Step 6 Repeat Steps 3 to 5 for each subtab that has parameters you want to provision.
Table 7-5 E3-12 Card Parameters
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The DS3i-N-12 cards provide twelve DS-3 ports. Each port operates at 44.736 MBits/s (Mbps). The DS3i-N-12 uses B3ZS error monitoring and enhanced performance monitoring, including P-Bit and CP-Bit monitoring. Default thresholds are based on recommendations in GR-820-CORE, Section 5.0.
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Step 2 Click the Provisioning tab.
Step 3 Depending on the setting you need to modify, click the Line, Line Thresholds, Elect Path Thresholds, SDH Thresholds, or Alarm Behavior tab.
Step 4 Modify the settings shown in Table 7-6. For drop-down lists, select an item from the list. For numerics, double-click the field and type the new number.
Step 6 Repeat Steps 3 to 5 for each subtab that has parameters you want to provision.
Table 7-6 DS3i-N-12 Card Parameters
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| 1 To convert meters (m) to feet (ft.), multiply by 3.28. To convert feet to meters, multiply by .328. |
The ONS 15454 SDH provides several protection options for E1-N-14 and DS3i-N-12 cards: unprotected, 1:1, and 1:N (N=5 or less). Changing protection from 1:1 to 1:N increases the available bandwidth because two of the three cards used for protection in the 1:1 protection group become working cards in the 1:N group.
When setting up 1:N protection, install the E1-N-14 or DS3i-N-12 card in Slot 3 or 15 on the same side of the ONS 15454 SDH as the cards it protects. Slot 3 protects cards in Slots 1 to 2 and 4 to 6. Slot 15 protects cards in Slots 12 to 14 and 16 to 17. An E1-N-14 or DS3i-N-12 card installed in Slot 3 or 15 can protect up to five E1-N-14 or DS3i-N-12 cards. If you install a DS3i-N-12 or E1-N-14 card in another slot, it is not able to protect other E1-N-14 or DS3i-N-12 cards in 1:N protection.
To create 1:1 protection for E1-N-14 and DS3i-N-12 cards, see the 3.6 Creating Card Protection Groups.
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Note This procedure assumes E1-N-14 cards are installed in Slots 1 through 6 and/or Slots 12 through 17. |
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Step 2 In the Protection Groups list, click the protection group that contains Slot 3 or Slot 15 (where you will install the E1-N-14 card that protects the others).
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Caution Protection conversion must be carried out on a card that is not carrying traffic so that traffic will not be interrupted. |
Step 3 Ensure the working and protect cards are in normal status.
The cards contained in the 1:1 protection group are listed under Selected Group in the Maintenance > Protection tabs.
The normal card status in the protection group is for one slot to say Working/Active and for the other to say Protect/Standby. If one of the cards says Protect/Active, it means that the protect card is carrying traffic for the working card because the working card has an error condition or alarm. This condition or alarm must be solved before the card protection type can be converted, since the current protection group has to be deleted. Click the Alarms tab and troubleshoot the alarms according to the methods in the Cisco ONS 15454 SDH Troubleshooting and Maintenance Guide.
If the traffic switch from the working card to the protect card was carried out as an automatic protection switch, this will be indicated in the Conditions tab by conditions that begin with "AUTOSW" such as AUTOSW-AIS-SNCP, AUTOSW-LOP-SNCP, AUTOSW-SDBER-SNCP, AUTOSW-SFBER-SNCP, or AUTOSW-UNEQ-SNCP. Once the alarm that caused the autoswitch is solved, traffic should revert back to the working card and the card should say Working/Active in the Selected Group list.
If the traffic switch was carried out by a switch command, clear the switch by the following steps:
The working slot should change to Working/Active and the protect slot should change to Protect/Standby. If they do not change, do not continue. Troubleshoot the working card and slot to determine why the card cannot carry working traffic.
Step 4 Repeat Steps 1 to 3 for each protection group that you need to convert.
Step 5 Verify that no standing alarms exist for any of the E1-N-14 cards that you are converting. If alarms exist and you have difficulty clearing them, contact your next level of support.
Step 6 Click the Provisioning > Protection tabs.
Step 7 Under Protection Groups, click the 1:1 protection group containing the cards that you will move into the new protection group.
Step 9 When the confirmation dialog displays, click Yes.
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Note Deleting the 1:1 protection groups does not disrupt service. However, no protection bandwidth exists for the working circuits until you complete the 1:N protection procedure. Therefore, complete this procedure as quickly as possible. |
Step 10 If needed, repeat Steps 8 and 9 for other protection groups.
Step 11 Verify that the card boots up properly.
Step 12 Click the Provisioning > Protection tabs.
Step 13 Click Create. The Create Protection Group dialog box opens with the protect card in the Protect Entity field and the cards available for protection listed in the Available Entities list.
Step 14 Type a name for the protection group in the Name field (optional).
Step 15 Click Type and choose 1:N (card) from the pull-down menu.
Step 16 Verify that the E1-N-14 card appears in the Protect Entities field.
Step 17 In the Available Entities list, highlight the cards that you want in the protection group. Click the Arrow (>>) button to move the cards to the Working Entities list.
Step 18 Click OK.
The protection group appears in the Protection Groups list on the Protection subtab.
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Note This procedure assumes that DS3i-N-12 cards are installed in Slots 1 to 6 and/or Slots 12 to 17. |
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Step 2 In the Protection Groups list, click the protection group that contains Slot 3 or Slot 15 (where you will install the DS3i-N-12 card that protects the others).
Step 3 Ensure the working and protect cards are in normal status.
The cards contained in the 1:1 protection group are listed under Selected Group in the Maintenance > Protection tabs.
The normal card status in the protection group is for one slot to say Working/Active and for the other to say Protect/Standby. If one of the cards says Protect/Active, it means that the protect card is carrying traffic for the working card because the working card has an error condition or alarm. This condition or alarm must be solved before the card protection type can be converted, since the current protection group has to be deleted. Click the Alarms tab and troubleshoot the alarms according to the methods in the Cisco ONS 15454 SDH Troubleshooting and Maintenance Guide.
If the traffic switch from the working card to the protect card was carried out as an automatic protection switch, this will be indicated in the Conditions tab by conditions that begin with "AUTOSW" such as AUTOSW-AIS-SNCP, AUTOSW-LOP-SNCP, AUTOSW-SDBER-SNCP, AUTOSW-SFBER-SNCP, or AUTOSW-UNEQ-SNCP. Once the alarm that caused the autoswitch is solved, traffic should revert back to the working card and the card should say Working/Active in the Selected Group list.
If the traffic switch was carried out by a switch command, clear the switch by the following steps:
The working slot should change to Working/Active and the protect slot should change to Protect/Standby. If they do not change, do not continue. Troubleshoot the working card and slot to determine why the card cannot carry working traffic.
Step 4 Repeat Steps 2 and 3 for each protection group that you need to convert.
Step 5 Verify that no standing alarms exist for any of the DS3i-N-12 cards you are converting. If alarms exist and you have difficulty clearing them, contact your next level of support.
Step 6 Click the Provisioning > Protection tabs.
Step 7 Under Protection Groups, click the 1:1 protection group containing the cards that you will move into the new protection group.
Step 9 When the confirmation dialog displays, click Yes.
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Note Deleting the 1:1 protection groups does not disrupt service. However, no protection bandwidth exists for the working circuits until you complete the 1:N protection procedure. Therefore, complete this procedure as quickly as possible. |
Step 10 If you are deleting more than one protection group, repeat Steps 6 - 8 for each group.
Step 11 Verify that the card boots up properly.
Step 12 Click the Provisioning > Protection tabs.
Step 13 Click Create. The Create Protection Group dialog box opens with the protect card in the Protect Entity field and the cards available for protection listed in the Available Entities list.
Step 14 Type a name for the protection group in the Name field (optional).
Step 15 Click Type and choose 1:N (card) from the pull-down menu.
Step 16 Verify that the DS3i-N-12 card appears in the Protect Entities field.
Step 17 In the Available Entities list, highlight the cards that you want in the protection group. Click the Arrow (>>) button to move the cards to the Working Entities list.
Step 18 Click OK.
The protection group appears in the Protection Groups list on the Protection subtab.
Intermediate path performance monitoring (IPPM) allows you to transparently monitor traffic originating on E-1, E-3, and DS-3 cards (path-terminating equipment) as it passes through STM-1, STM-4, STM-16, and STM-64 cards (line-terminating equipment). To use IPPM, you create the VC4 circuit on the E-1, E-3 or DS-3 card, then enable IPPM on the STM-N cards that carry the circuit.
Near-end performance monitoring data on individual VC4 payloads is available by enabling IPPM.
For example, suppose you have a VC4 circuit that originates and terminates on E-N cards at Nodes 1 and 4. You want to monitor the circuit as it passes through STM-N cards at Nodes 2 and 3. To do this, open the STM-N card, select the Provisioning > VC4 tabs, and check Enable IPPM for the appropriate VC4, in this example, Line 1, VC4 1 (Figure 7-5).
After enabling IPPM, performance is displayed on the Performance tab for the STM-N card. IPPM enables per-path statistics for VC4 CV-P (coding violations), VC4 ES-P (errored seconds), VC4 FC-P (failure count), VC4 SES-P (severely errored seconds), and VC4 UAS-P (unavailable seconds). Only one VC4 per port can be monitored at one time. For additional information about ONS 15454 SDH performance monitoring, see to "SDH Performance Monitoring."
This section explains how to provision line and threshold settings for OC-N/STM-N cards, and how to provision OC-N/STM-N cards for SDH.
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Note The expression OC-N/STM-N is used because the numbering in SONET (OC-N) and SDH (STM-N) are not the same. OC-3 corresponds with STM-1, etc. |
The OC-N/STM-N abbreviation stands for any of the following cards:
The OC48 ELR/STM16 EH 100 GHz cards are available in eighteen different wavelength versions for dense wavelength division multiplexing (DWDM). For a list of available wavelengths, refer to the "OC48 ELR/STM 16 EH 100 GHz Card Specifications" section in Chapter 3 of the Cisco ONS 15454 SDH Troubleshooting and Maintenance Guide, Release 3.4. In the following tables, all these cards are abbreviated as STM-1, STM-4, STM-16, and STM-64.
The STM-1, STM-4, STM-16 and STM-64 cards are preprovisioned with settings that you can modify to manage transmission quality. For each optical card, you can specify thresholds for near and far end nodes at the Line, Section, and Path levels for 15-minute and 1-day intervals. Depending on the card, you can specify Line, Section, and Path thresholds.
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Step 2 Click the Provisioning > Line tabs.
Step 3 Modify the settings shown in Table 7-7.
Step 4 Click Apply.
Table 7-7 OC-N/STM-N Card Line Settings
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Step 2 Click the Provisioning > Line Thresholds tabs.
Step 3 Modify the settings shown in Table 7-8.
Step 4 Click Apply.
Table 7-8 STM-N Card Threshold Settings
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The ONS 15454 SDH currently supports 1+1 span protection to create redundancy for optical cards. Optical cards in any two slots can be paired for protection. 1+1 protection pairs a single working card with a single dedicated protect card. If the working card fails, the protect cards takes over.
With non-revertive 1+1 protection, when a failure occurs and the signal switches from the working card to the protect card, the signal stays switched to the protect card until it is manually switched back. Revertive 1+1 protection automatically switches the signal back to the working card when the working card comes back on line. Establishing optical card protection groups is covered in "Node Setup."
Three Ethernet cards are available for the ONS 15454 SDH.
Ethernet card provisioning is described in Chapter 9.
The ONS 15454 SDH can monitor alarms through the Alarm Interface Card-International (AIC-I). The AIC-I card provides 16 external alarm inputs and four alarm inputs or outputs (user-configured). The inputs are routed to the AIC-I through the backplane from the MIC-A/P card. (For more information about the AIC-I and MIC-A/P card specifications, see the Cisco ONS 15454 SDH Troubleshooting and Maintenance Guide.)
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Step 2 As needed, complete the "Provision External Alarms and Controls on the AIC-I Card" procedure.
Step 3 As needed, complete the "Create a User Data Channel Circuit on the AIC-I" procedure.
Step 4 As needed, complete the "Provision the AIC-I Orderwire" procedure.
Tip Before you begin, make a list of the ONS 15454 SDH slots and ports that require orderwire communication.
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Note Specifications for the AIC-I card are located in the Cisco ONS 15454 SDH Troubleshooting and Maintenance Guide. |
Step 2 Click the Provisioning > Card tabs and complete the following fields for the card:
The default station number is 0000 and cannot be deleted. It is considered the party line number because it calls all nodes on the network when dialed.
Step 3 If you are provisioning external alarms, click the External Alarms tab (Figure 7-7). If you are not provisioning external alarms, skip Steps 4 and 5, and go directly to Step 6.
Step 4 Complete the following fields for each external device wired to the ONS 15454 SDH backplane:
The severity determines how the alarm is displayed in the CTC Alarms and History tabs and whether the LEDs are activated. Critical, Major, and Minor activate the appropriate LEDs. Not Alarmed and Not Reported do not activate LEDs, but do report the information in CTC.
To provision additional devices, complete Steps 3 and 4 for each additional device.
Step 6 If you are provisioning external controls, click the External Controls subtab and complete the following fields for each external control wired to the ONS 15454 SDH backplane:
To provision additional controls, complete Step 6 for each additional device.
Step 7 Click Apply.
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Step 2 Click the Provisioning > Overhead Circuits tabs.
Step 3 Click Create.
Step 4 In the Circuit Creation dialog box, complete the following fields:
Step 5 Under Endpoints, choose the source and destination nodes from the drop-down menus.
Step 6 Under Endpoints, choose the source and destination optical ports and slots from the drop-down menus.
Step 7 Click Finish.
Step 2 Click the Provisioning > Overhead Circuits tabs.
Step 3 Click Create.
Step 4 In the Circuit Creation dialog box, complete the following fields:
If regenerators are not used between ONS 15454 SDH nodes, you can use either local or express AIC-I orderwire channels. If regenerators exist, use the express orderwire channel. You can provision up to four ONS 15454 SDH OC-N ports for each orderwire path.
The Circuit Creation dialog box for a local orderwire is shown in Figure 7-8. Provisioning procedures are the same for both types of orderwire.
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Caution When provisioning orderwire for ONS 15454 SDHs residing in a ring, do not provision a complete orderwire loop. For example, a four-node ring typically has east and west ports provisioned at all four nodes. However, to prevent orderwire loops, provision two orderwire ports (east and west) at all but one of the ring nodes. |
Step 5 Under Endpoints, choose the source and destination nodes from the drop-down menus.
Step 6 Under Endpoints, choose the source and destination optical ports and slots from the drop-down menus.
Step 7 Click Finish.
Posted: Thu Jul 24 12:36:10 PDT 2003
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