15454 Ethernet Protection & Provisioning

Is anyone using E100T-G Ethernet cards in Cisco ONS transports forconnectivity? We are just starting and cannot seem to find an answer to a nagging question (after much RTFM and TAC runarounds). Our topology is a 15 node UPSR SONET. We currently have 3 nodes each with a 12-port E100 card. Node1 Port2 connects to Node2 Port2. Node1 Port3 connects to Node3 Port3. Everything is on the same VLAN (default). Now my question is of protection. When we setup any other type of circuit (DS1 or DS3) the circuit is created to be protected by default, the software provides a working and protected path. But when creating ethernet circuits there is no such option. So when looking at the circuit list under the Protection column instead of the "UPSR" listing like all the rest of the circuits, for the Ethernet we see "Unprot". Try as we might we cannot find a way to make these circuits protected. At this point we assume that if there is a fiber cut or loss, the whole ring will switch from the working ring to the protected ring and the Ethernet will go right along this path as well. We are going to be installing a couple more nodes next spring and we plan to test this by actually pulling the OC48 connections out while it is running (without live traffic of course), but in the mean time we are perplexed by this problem. If anyone has any thoughts, ideas, or suggestion on provisioning Ethernet and how to effectively and efficiently use Ethernet in a network, we'd love to hear from you.

You have several options then. If you leave your cards as a multi-card or single-ether card then they will operate as a Layer 2 switch. The E-series cards operate well as a switch but do not have all the features that can be found in the ML series of cards. One of the options is to utilize these cards at L2 with this method you can segment all your remote sites back on individual VLANs to your aggregation site. The protection mechanism in this case can either be individually protected circuits, however this can consume quite a bit of bandwidth with only STS granularity for provisioning these circuits. You can also map your circuits from card to card all the way around your ring. This allows you to create unprotected circuits and rely on Spanning Tree to protect your traffic and re-route in the event of a fiber cut. Bear in mind that Spanning tree can take up to 50 seconds per switch port to complete a topology change. In my experience on a 16 node ring with E-series cards, spanning tree can take as long as 3 or 4 minutes to complete and put all the ports back into forwarding. This time period may be unacceptable depending on your situation.
Alternately, you can provision your E-series card as port-mapped which changes them to a layer 1 card. You can then connect a switch to the ports in your remote sites. With a switch such as a 3550 you can implement RSTP (Rapid Spanning Tree) which can reduce your convergence time using rapid spanning tree to sub 1 second.
The ML card provides another option to implement a great Ethernet topology that includes RPR (Resilient Packet Rings) which provide for sub 50ms failover and spatial re-use. This is a greatly improved method of delivering metro Ethernet services and in addition support eoMPLS (Ethernet over MPLS) which can provide you some features that you can use in your own network as well as offer as a premium service to commercial customers.
Let me know if you would like to expand on any of these topics.
Best Regards,
Brad

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Metro ethernet, Ethernet protection ring.

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Let say we have Ethernet switches connected in a ring .We want to use Ethernet protection ring for loop avoidance and faster convergence.
One of the switch will be RPL owner, and of the link in our ring will be chosen as RPL link.
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15305 and 15454 Ethernet interworking

Hi Folk,
Wonder if anyone can help out there.
Would like to provide a LAN Extension service over an SDH network. Does anyone know whether the GigE and FE cards on the 15305 interwork with the 15454 CE or ML ethernet cards?
Have looked on the Cisco site and am somewhat confused. The 15305 uses GFP-F to map Ethernet into SDH. The 15454 cards appear to encapsulate the ethernet frame before it uses GFP-F.
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Phil

Hi Phil
yes, of course they do. You have two possibilites. You can use the 15305 modules in L1 mode and connect them to the CE cards on 15454. Or you can use the 15454 ML cards, maybe with a L2 RPR ring. Then you can switch the 15305 modules to L2 mode with a integrated L2 switch.
CE cards anf the 15305 modules in L1 mode is always P2P and pure ethernet transport without any L2 or VLAN stuff.
ML card and 15305 modules in L2 mode use a L2 switch with a lot of L2 features, like VLAN, STP, QoS and so on.
By the way, both CE and 15305 modules in L1 use GFP-F and are fully compatible.
I hope this helps. Please rate all posts.
Cheers
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Cisco ONS 15454 Optical protection switch

Is there a list available which details all possibilities that will cause an optical switch to protection on a BLSR node.

Hi Ryan,
I think my connectivity is fine now between the ONS switchs but Brocade switch is having trouble negotiating the link with the MXP card. Can you please suggest how to proceed further?
From Brocade switch:-
admin> portcfgshow 38
Area Number:              38
Speed Level:              AUTO(HW)
Fill Word:                3(A-A then SW I-A)
AL_PA Offset 13:          OFF
Trunk Port                ON
Long Distance             LD
VC Link Init              ON
Desired Distance          10 Km
Reserved Buffers          46
Locked L_Port             OFF
Locked G_Port             OFF
Disabled E_Port           OFF
Locked E_Port             OFF
ISL R_RDY Mode            ON
RSCN Suppressed           OFF
Persistent Disable        OFF
LOS TOV enable            OFF
NPIV capability           ON
QOS E_Port                OFF
Port Auto Disable:        OFF
Rate Limit                OFF
EX Port                   OFF
Mirror Port               OFF
Credit Recovery           ON
F_Port Buffers            OFF
NPIV PP Limit:            126
CSCTL mode:               OFF
I also tried to set the port speed to 4Gbps from brocade switch but no luck.
Thanks

Ethernet Circuit/XCVT Limitations?

We are running a 20 node, ONS-15454 SONET ring, OC-48, with XCVT and the E100T-12-G Ethernet cards in each node.
One node currently has 3) STS-1 Ethernet circuits provisioned to it and we wanted to add 4)new STS-3c circuits. The first two were created with no problem but when the 3rd was being created, the option to select the Ethernet card slot was no longer available, only the OC-48 cards. We are able to create 3 new STS-1 circuits, with no problems, but no STS-3c.
Are we simply maxing out our cross-connect/XCVT? Is there some limitation on the E100T-12-G cards? Will upgrading to the XC10G remedy the problem?

As a follow-on to "tphelps" comments, the E-Series card's bandwidth is limited to a maximum of STS-12 to the backplane. As was earlier stated, restrictions required circuits to be created in a specific order, per the notice url provided below (I would assume the restrictions are still valid in newer SW).
http://www.cisco.com/en/US/ts/fn/100/fn12917.html
Depending on the type of Ethernet circuits you are trying to carry across the optical network (pt-to-pt, shared packet ring), you may want to consider using the newer CE-series, G-Series or ML-series Ethernet cards. The E-Series cards are of an old design and have been EoL'd.
Hope this helps.

Invoice vs. Money Request as Goods - same protection for Buyer and Seller?

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Yes.

ONS15454 Ethernet Circuit Creation Problem

We are attempting to create an STS-3c Ethernet circuit between 2 nodes that both have the E100T-12-G Ethernet cards on an OC-48 ring. We know there is the limitation of 12 total STS's that can be created on each of the E100T cards. Node A has (6) STS-1 circuits provisioned, while Node B has (5) STS-1 circuits and (1) STS-3c circuit, for a total of 8 STS's. During the circuit creation, the Ethernet card in Node A does not show up as an available card, while Node B ethernet card does show up as an available card. Oddly enough Node B has more STS's on it than Node A but for some reason Node A's card cannot be provisioned.
Why does this card not show up while trying to create an STS-3c circuit? If we change the circuit type to STS-1, then it does show up as an available card.
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Hi Curt,
May you verify the card works in a port-mapped or single switch mode? Multicard EtherSwitch limits bandwidth to STS-6c.
Otherwise you may need to delete all the circuits and re-provision them again starting with 3c. That is due to the card limitation which is described in “CSCse84101 Port-mapped e100 does not allow create STS-1 with 2 STS3cs present”. That is not going to be resolved hence we need to follow the creation rule.
===========================================================
In a system with multiple Ethernet circuits provisioned in a point-to-point configuration, you might be unable to use the entire 12c bandwidth in a mixed configuration if you do not adhere to the following rules. These rules are applicable to all E-series modes including port-mapped.
To allow use of the full STS 12c bandwidth capacity to be dropped at each node in a point-to-point configuration, provision your circuits in the following order:
Scenario 1: One 12c Circuit
Scenario 2: Two 6c Circuits
Scenario 3: One 6c Circuit followed by two 3c Circuits
Scenario 4: One 6c Circuit followed by six STS-1 Circuits
Scenario 5: Two 3c Circuits followed by six STS-1 Circuits
Scenario 6: Four 3c Circuits
Scenario 7: Twelve STS-1 Circuits
These guidelines are the only supported configurations for full 12c bandwidth utilization using any E-Series mode, including port-mapped mode. ===========================================================
Regards,
Alex

Dual Powermac G5 2.0Ghz JUST WENT BANG!!!

Hi all, Im writing this through my laptop as my G5 went BANG/POP this morning.
I'm not new to apple macs but I am new to owning the G5 and have little experience with the insides, I've only ever used the G5 at college and Uni. I managed to get my hands on this G5 Dual 2.0Ghz from a friend who has upgraded to a Mac pro and I havent used it as yet because of this:
I had only got a vga monitor so sent off for an adapter from DVI to VGA, the adapter came this morning and so in excitement of owning my G5 I carefully fixed the adapter to the mac and then to the monitor. Powered up the monitor and as always it was perfect and awaiting signal.
After pressing the power on my G5 I heard the glourious hum we all love, I was so pleased about having it and was eagerly awaiting it to start to have a play. Just as the apple logo came onto my screen as it was booting up I heard a MASSIVE BANG/POP and the monitor went blank. I quickly turned off the switches and pulled the plugs out for both mac and monitor and also the power lead of the mac.
After gathering my self together (the bang took me by suprise and scared the **** out of me for a few moments) I switched back on the monitor and as always it was in perfect working condition. The mac however, when I plugged it back in for just a second to see if it was ok, it wouldn't power up and there were no signs of life whatsoever.
I have a little knowledge so immediatly thought it could be the PSU I had heard a few horror stories about them blowing but never before witnessed it. I'm certain its the PSU and I called the friend I bought it from asking and hoping for a solution. He also said it sounded like the PSU, but now Im stuck, Ive just forked out a rather large amount of money for the Mac (Im a single dad and work only part time) I saw that there were a number of certain models that had problems so i cross checked the serial but its not in that group so I cant get apple to sort it for free.
my question is now, where do i go ? Icant afford another G5 Ive spent years trying to get hold of one and not had the funds apart from when this was offered to me at just the top of my limit. I also go to night class at local university studying filmmaking and graphics but I cant do any of what I need to do ecause of the fact I now have no usable mac.
Can I get this fixed cheaper than Im hoping or is it going to cost hundreds of pounds ?
Please help im absolutely gutted that Ive spent all this money for nothing, I only did it to help with my studies so that I can earn more in the long run for my child.
Thanks in advance,
A very gutted Purple Ronnie

Yeah, you should NEVER plug a system directly into the wall like that unless your home is wired with built-in surge protection.
Then still, IMO, you should use good power strips made by a reputable manufacturer like APC.
If your home is wired with surge protection you'd know by the wall plate having a switch or indicator.
I had my house wired that way because I had to have the wiring updated anyway.
It wasn't cheap, and looking back I'm not sure it was necessary.
I still use surge protected power strips on everything and UPS on the most critical components.
I have all my network components on UPS which also has its own surge protection, and of course my home server and PowerMac have dedicated UPS units.
So if the power goes out the network components and workgroup server stay up for 15 minutes.
The PowerMac for a half hour and the basement desktop for 5 minutes.
For the laptops I bought surge protected adapters that just plug right into the wall plates.
No battery backup for obvious reasons.
The surge adapters are no bigger than the wall plates themselves, but protrude outward and have 6 receptacles.
The outer edge is a strip that glows blue when it's solid and grounded, green when it isn't grounded but still solid, and red when the circuit gets tripped.
It's a low intensity glow for the sake of efficiency.
The idea is redundancy.
In the case of a spike, if the built in protection fails the external protection kicks in.
Many people think it's a bit obsessive compulsive.
And it probably is to an extent because I tend to gravitate that way with everything.
I had an NT workstation in 1998 that got totally fried due to a cheap power strip.
It was a traumatic experience!
Rivaled only by the thermal issue with the G5 that I'm currently dealing with.
However, it made me very aware of the evils that electrical spikes/surges present and the damage they leave in their wake.
For best protection you should buy units that have RJ11(telephone) and RJ45(ethernet)protection.

Regarding PM-CS Certification

Dear Experts,
I am working as SAP PM consultant in manufacturing company. I would like to take SAP PM certification, please help me in this regard.
1. What are pre-requisites for attending the Certification?
2. On which SAP PM concepts do I need to concentrate more?
3. Can I have SAP documents / cookbooks for the certification material?
4. What are the other modules that will be included in SAP-PM certification?
5. Can anyone share their experience on SAP PM Certification?
Thanks in Advance,
Nagesh

Hi Aswartha,
You can take either one Asset Life-Cycle (Plant Maintenance) OR Asset Life-Cycle(Customer Service)
SAP Consultant Certification Solution Consultant mySAP PLM - Asset Life-Cycle Management - Plant Maintenance (2003)
Software components: SAP R/3 Enterprise (SAR R/3 Enterprise Core 4.70/SAP R/3 Enterprise Extension Set 1.10)
Certification duration: 3 hours
Number of certification questions: 80 multiple choice questions
Required certificates for participation in this certification test: none
Courses for certification preparation: PLM300 (Plant Maintenance), PLM305 (Structuring and Managing Technical Objects), PLM310 (Preventive Maintenance and Service), PLM315 (Maintenance Processing: Operational Functions), PLM316 (Maintenance Processing: Controlling and Reporting), TPLM30 (Asset Life-Cycle Management - Plant Maintenance (Case Study))
Please note that you are not allowed to use any reference materials during the certification test (no access to online documentation or to any SAP system).
The certification test Solution Consultant mySAP PLM - Asset Life-Cycle Management - Plant Maintenance (2003) verifies the knowledge in the area of solution mySAP Product Lifecycle Management for the consultant profile Asset Life-Cycle Management - Plant Maintenance. This certificate proves that the candidate has a basic understanding within this consultant profile, and can implement this knowledge practically in projects.
The certification test consists of questions from the areas specified below:
Topic Areas
1. Organizational Units and Master Data in Plant Maintenance (++)
Organizational Units Maintenance Plant and Planning Plant
Work Centers
Storage Locations
Functional Locations
Structure Indicator
Reference Location and Functional
Location
Creation Options
Data Transfer
Equipment
Installation/Dismantling at Functional
Locations
Equipment Hierarchy
Change Documentation
Equipment Category
Synchronization of material/construction type
Synchronization of equipment/serial number
Material and Serial Numbers
Serial Number Profile
Goods Movement and Warehouse Stock
Valuation Batches
Bills of Material (BOM)
Assemblies
BOM Categories
Item Categories
Change Documentation
Additional Functions
Configuration
Classification
Measuring Points and Counters
Partners and Addresses
Document Link
Status Management
Permits and Warranties
Data Transfer
2. Maintenance Processing (+++)
Breakdown Maintenance
Corrective Maintenance
Notification Types
Objects and Object Information
Catalogs and Catalog Profiles
Integration Notification/Order
List Viewer for Notifications and Orders
Order Type
Object List
Operation List
Relationships
Material List
Availability Check
Order Release and Printing
Material Withdrawal
Completion Confirmation in Time
Technical Completion Confirmation
Technical Completion
Action Log and Document Flow
Processing External Services
External Services as Individual Purchase Order
External Services with External Work Centers
External Services with Service Entry Sheets
Processing Refurbishment Tasks
Valuation Type and Valuation Category in the Material Master
Refurbishment Without Serial Numbers
Refurbishment with Serial Numbers
Inventory Management and Controlling Processing Maintenance Projects
Planning and Executing Maintenance Projects
Completion, Settlement, and Monitoring of Maintenance Projects
Capacity Planning
Scheduling
Work Center and Available Capacity
Capacity Leveling
Employee Assignment
3. Controlling Functions in Plant Maintenance (++)
Plant Maintenance in the Organizational Structures of Accounting
Budget Planning and Monitoring
Cost Estimation
Planned/Actual Cost Determination
Order Settlement
Logistics Information System (LIS)
Plant Maintenance Information System (PMIS)
Enhancement Options
4. Preventive Maintenance (+++)
Task List Management
Task List Types
Profile and User Fields
Component Assignment
Task List and Order
Single Cycle Plan
Structure
Scheduling Indicator
Deadline Monitoring
Change Documentation
Strategy Plan
Maintenance Strategy
Task List and Maintenance Strategy
Change Documentation
Performance-Based Maintenance Planning
Counters and Measurement Documents
Maintenance Plan Scheduling
Maintenance Planning with Several Counters
Cycle Sets
Link Type
Weighting Key in the Test:
+ = 1 - 10%
++ = 11 - 20%
+++ = over 20%
SAP Consultant Certification
Solution Consultant mySAP PLM - Asset Life-Cycle Management - Customer Service (2003)
Software components: SAP R/3 Enterprise (SAR R/3 Enterprise Core 4.70/SAP R/3 Enterprise Extension Set 1.10)
Certification duration: 3 hours
Number of certification questions: 80 multiple choice questions
Required certificates for participation in this certification test: none
Courses for certification preparation: PLM301 (Customer Service), PLM305 (Structuring and Managing Technical Objects), PLM310 (Preventive Maintenance and Service), PLM330 (Service Contracts), PLM335 (Service Processing), LO836 (Service Processing: Controlling Functions).
Please note that you are not allowed to use any reference materials during the certification test (no access to online documentation or to any SAP system).
The certification test Solution Consultant mySAP PLM - Asset Life-Cycle Management - Customer Service (2003) verifies the knowledge in the area of solution mySAP Product Lifecycle Management for the consultant profile Asset Life-Cycle Management - Customer Service. This certificate proves that the candidate has a basic understanding within this consultant profile, and can implement this knowledge practically in projects.
The certification test consists of questions from the areas specified below:
Topic Areas
1. Organizational Units and Master Data in Customer Service (++)
Organizational Units
Plants
Storage Locations
Sales Areas
Master Data
Work Centers
Functional Locations
Structure Indicator
Reference Location and Functional Location
Creation Options
Data Transfer
Equipment
Installation/Dismantling at Functional Locations
Equipment Hierarchy
Change Documentation
Equipment Category
Serial Numbers
Serial Number Profile
Goods Movement and Warehouse Stock
Bills of material (BOM)
Assemblies
BOM Categories
Item Categories
Additional Functions
Configuration
Classification
Measuring Points and Counters
Partners and Addresses
Status Management
Warranties
2. Service Processing (+++)
Documents in Service Processing
Service Notification
Service Order
Sales Order
Help Desk
Notification Processing
Notification Types
Partner Determination Procedure and Partner Functions
Object Information
Catalogs and Catalog Profiles
Response Time Monitoring
Solution Database
Customer Interaction Center
Field Services Planning
Order Processing
Order Types
Scheduling and Capacity Planning
External Services
Material Planning
Printing and Paging
Completion Confirmation
Billing
Settlement and Completion
Returns and Repairs
Sales Document Types and Item Categories for Repairs Processing
Order Entry and Returns Delivery
Technical Check and Repairs Processing
Delivery and Billing
3. Service Contracts (++)
Definition of Service Products
Fixed Service Product
Configurable Service Product
Configured Service Product
Service Contracts
Definition and Customizing of Service Contracts
Hotline Service Contract
Maintenance and Repairs Contract
Value Contract
Price Determination
Overview and Concepts
Variant Conditions
Price Agreements in Contracts
Billing
Billing Plan
Periodic Contract Billing
Contract Settlement
4. Controlling Functions in Customer Service
Customer Service in the Organizational Structures of Accounting
Planned/Actual Cost Determination
Order Settlement
Budgeting and Commitments Management
Service Information System
5. Preventive Service
Task List Management
Task List Types
Profile and User Fields
Component Assignment
Task List and Order
Single Cycle Plan
Structure
Scheduling Indicator
Deadline Monitoring
Strategy Plan
Maintenance Strategy
Task List and Maintenance Strategy
Performance-Based Maintenance Planning
Counters and Measurement Documents
Maintenance Plan Scheduling
Maintenance Planning with Several Counters
Cycle Sets
Link Type
Weighting Key in the Test:
+ = 1 - 10%
++ = 11 - 20%
+++ = over 20%
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Cpu temperature durring netflix?

Hey Guys,
my new MacBook Pro (13inch) gets up near 90 degrees Celcious when Im doing something like watching a movie on netflix....
is this unusual?
thanks for your help in advance.
these temps came from iStat Nano widget.

JohnBarrett wrote:
I'm afraid you are now a member of the "I bought a 2011 13 inch MacPro and can now fry eggs while watching Netflix club".
It's all Intel's fault really. All processor makers hit a thermal wall, but then Intel goes and places GPU graphics on the CPU doubling the heat in one location, which results in performance hobbling to keep it down and let the cooling system catch up.
The issue as I understand it is....Netflix playing involves decoding both the video content and rights protection provision. This maxes out the Intel i5/i7' CPU's two physical and two virtual cores. Since the 13 inch has a GPU integrated with it's CPU, all of the video work is being done by the sole processor. The 13 inch is not designed to vent this kind of heat, 90C+-, 200F+- for sustained periods.
If one has a WPA2 encrypted network and streaming Netflix that just adds to CPU load.

Firewire glitch

Hi;
After a power surge, I've lost firewire capabilities. The power is present; I can charge a device, but I cannot communicate or connect with any peripherals.

Billy Stidham,
Welcome to the Apple Discussions!
1. shut down
2. remove all Firewire peripherals from the eMac
3. remove the power cord from the side of the eMac (this removes the trickle current that modern electroincs draw even when nominally off)
4. wait at least 30 minutes
5. reattach the power cord
6. restart
7. open Applications> Utilities> System Profiler and check that the Firewire tab shows the bus as recognized
8. reattach your Firewire periherals one at a time, refreshing System profiler after each device. (If one particular device doesn't appear while the bus does, that device and/or its Firewire cable may be damaged.)
What kind of power line protection do you have? Cheap MOSFET-based surge protectors are essentially one-shot devices, with a nasty design that allows the 'protected' ststus LED to remain lit long after effective protection has been lost. While a good-quality multi-stage surge protector provides a safeguard against a power surge (the lab where I work is quite fond of Tripp Lite Isobar suge protectors), those provide no protection against power brownouts and outages. An Uninterruptable Surge Protector (UPS) from a reputable vendor such as APC is highly recommended. In the area I live, local computer and office supply stores often use the low-end 350mA APC model as a loss-leader to pull people into the store, with a net price of US$30 or less. While higher battery capacity is always desireable, and higher-end models include integrated cable and/or Ethernet protection as well as phone line, even a low-end UPS allows the computer to ride out momentary power outages. Connect the UPS to the Mac with a USB cable, and you can use Energy Saver to program it to shut down gracefully in case of longer outages.

Low end MSPP

We are building a lab that needs to simulate our WAN. I would like to incude an 2 MSPP routers but the Cisco ONS 15454 SONET Multiservice Provisioning Platform (MSPP) is cost prohibitive. It is what we use so it is the only MSSP I know of.
Is there a low end optical SONET router that can handle 500Mbs or more that anybody knows about?
My second choice is to buy a packet storm but since we are testing video I wanted to be able to test the guaranteed bandwidth that the MSPP offers.

Have you looked at the Cisco ONS 15310 series products? It is a MSPP that can transport GigE over OC-48 bandwidth.
<http://www.cisco.com/en/US/products/ps6333/index.html>

1+1 Port Protection on OC-n on ONS-15454

I have a delima. When we setup the 1+1 protection, one node was a at Ver. 6.x and the other node was at ver 4.x and there were two different entities were doing the provisioning. The provisioning ended up being crossed over, no APS invalid errors came up until we U/G to Ver. 8.5. I have traffic provisioned on what is my Working side. Is there a way to reprovision the 1+1 without deleting the traffic? Or will I need to just move the fibers?

You should take a look at the "Bridge and Roll" feature to see if your current circuit configuration would be supported:
<http://www.cisco.com/en/US/docs/optical/15000r8_5/15454/sonet/reference/guide/r85circ.html#wp195717>

Y cable protection 15454 MSTP 9.1

Dear all,
Would you please comment the following (in brakets are numbers of sections of the document "Cisco ONS 15454 DWDM Reference Manual, Release 9.1", http://www.cisco.com/en/US/partner/docs/optical/15000r9_1/dwdm/reference/guide/454d91_ref.html):
Issues with Y-cable protection (10.18 Y-Cable and Splitter Protection):
- In a MXP_MR_10DME card provisioned with Y-Cable protection, if a failure is detected on the active path, the traffic is switched to the protect card. In the process of performing the switch operation, the actual end-to-end traffic is affected for up to 15-20 seconds.
- There is a traffic hit of upto a couple hundred milliseconds on the MXP_MR_2.5G and MXP_MR_10DME cards in Y-cable configuration when a fiber cut or SFP failure occurs on one of the client ports.
So does the switchover takes "up to 15-20 seconds" or it takes "couple hundred milliseconds"?
Do you have experience with y-cable protection on "OTU2-XP" cards - how much time it takes for switchover?
Thanks in advance,
Mladen

The way I read the statements is the length of the outage will depend on where the outage occurs in the network.
If their is a cable break in the network between the 15454 nodes, then the outage could be 15-20 seconds.
If the failure is between the 15454 card and the client port, then the outage will be a couple of hundred milliseconds.
I do not have experience with the OTU2 cards.

1:1 Card Protection ONS 15454

Hi All,
I am trying to understand the reason why the protect card/port shouldn't be in OOS(Out of service) to avoid any traffic loss even though the protect card is not switching traffic in ONS 15454 as stated below
"When a protection switch moves traffic from the DS3-12 working/active card to the DS3-12 protect/standby card, ports
on the new active/standby card cannot be taken out of service as long as traffic is switched. Lost traffic can result
when a port is taken out of service even if the DS3-12 standby card no longer carries traffic."
Thanking You
Regards
Anantha Subramanian Natarajan

rick,
kindly look into the below link
http://www.cisco.com/en/US/products/hw/optical/ps2006/products_technical_reference_chapter09186a00808a8f68.html
Regards
Anantha Subramanian Natarajan

15454 Ethernet Protection & Provisioning

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