3 Patch Cables

[Carol]

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In the early attempts, Anderson tried climbing Half Dome in his boots but they slid on the polished granite. An attempt with socks faired no better. He tried tying some sacking on his feet, but that was too slippery too. He found some success smearing his bare feet with pine pitch for extra traction. Unfortunately, that was too sticky, and getting his feet unstuck would throw him off balance. That almost killed him several times.

Most people have to take one or two steps on slippery granite to get from one board to the next, using their grip on the metal cable to keep them in place as they make the move. This is usually the hardest and least secure part.

The cables are close enough together that most people can easily reach across to hold one cable in each hand, and far enough apart to allow passing if each party steps aside and holds onto just one cable.

The first step seems a bit contradictory, just looking for some clarification. I have 2x5220s that I am setting up in HA Active-Passive mode. To cable the dedicated interfaces it looks like I just use regular ethernet cables, but the second sentence "Use a crossover cable if the peers are directly connected to each other." seems to contradict the first sentence. Can anyone explain when crossover cables would be used?

Some networks that are setup across multiple different buildings will utilize intermediate connections to connect the HA ports, and therefore the device is not actually directly connected to eachother. In this case you would use a normal patch cable.

If your Active/Passive units are going to be located in the same area, and they are going to be directly connected to each other (cable from HA1 on Active to HA1 on Passive), it is recommended to use a crossover cable.

Most networks that are actually dispursed between buildings are unlikely to use the ethernet HA ports however, instead they would setup SFP ports to simply utilize a direct fiber connection between firewalls.

@OtakarKlier is very much right, and why I put recommended in italics. Crossover cables are quickly becoming something that nobody actually uses anymore, and outside of a couple really old routers I've come across I can't recall the last time I've truthfully ran across a device that fully required a crossover cable be used.

Thank you all for the replies. I will use straight cables and see how it goes. I haven't used crossover cables since the days of hubs...and once switches and Auto-MDI/MDIX capabilities came along I never used a crossover cable unless it was required. It caught me a little off-guard when I saw that listed in the steps.

Yes that is exactly what we need is to have them connected by fiber and not through switches etc that when they loose power have cause a split brain condition on my network since there are located in different buildings. We discovered this when we had a power outage in the building where the active PA was located and they were both passing traffic cause they couldn't talk to the there HA partner and both thought the other was down.

I have been using 1G UTP and it's working. No synchronization issues or anything like that, but it depends on your setup. Make sure to read the posts in this thread and the configuration guide and if you're still not sure consult with tech. support or your sales SE.

@mike406 is right. This works perfectly fine in some situations, and it would work really poorly in others. This depends on the utilization of the 5220 and ensuring that you don't find youself hitting saturdation on the links.

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Some power lines may hold several independent systems called circuits which share the same supports. cables=* doesn't care about them and count every conductor of the power lines. Independent circuits may be described with relations and counted with circuits=*.

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Departments of Environmental Conservation, Health, and Public Service Immediately Respond to Investigate Potential Exposure and Health Risks Due to Old Lead-Covered Cables Left by Telecommunication Companies

Governor Kathy Hochul today directed the Department of Public Service, Department of Health, and Department of Environmental Conservation to immediately investigate a recent report of old lead-covered cables left by telecommunication companies and the potential public health risks associated with exposure to those cables.

"The health and safety of New Yorkers is the top priority of my administration, and we are using all of the tools at our disposal to ensure communities are out of harm's way," Governor Hochul said. "Lead-covered cables pose a serious threat to communities across New York, and I am directing State agencies to immediately launch a full investigation. We will hold the telecommunication companies responsible and take swift action to remediate any problems."

Today's action follows a media report of lead-containing cable in large and small communities across the U.S., including the State of New York. The report included the example of an aerial lead cable located in a local park in the village of Wappingers Falls, Dutchess County, and stated soil at the park perimeter had elevated lead levels above what the U.S. Environmental Protection Agency considers safe in soil in areas where children play. At the Governor's direction, state experts from the Department of Health (DOH) and the Department of Environmental Conservation (DEC) have initiated sampling in the area to evaluate any potential for lead exposure.

Governor Hochul directed the Department of Public Service (DPS), the regulator of telecommunication companies in New York, and DEC to investigate the scope of this potential concern based on past use of lead cables. As part of that effort, the agencies sent a letter to the State's 246 facilities-based telecommunication providers to begin compiling an inventory of the presence of aerial and buried cables, both on land and below water, containing lead across New York. The letter directs telecommunication companies to provide DPS and DEC with a full inventory of lead- containing aerial and buried cable owned by the company for both cable still in use to provide service and cable that is no longer being used but has yet to be removed.

The purpose of the investigation is to better understand the inventory and ownership of such cables in New York. This information will be used to evaluate the need for additional steps. The inventory would include the type of cable (copper or fiber) and whether it is aerial or buried, as well as the city, town, or village the cable is located in, street name where the cable is located, the length of the cable, the closest intersecting landmarks at the beginning and end of the cable, and any other information that would be useful to physically locate and inspect the cable.

In addition, Governor Hochul immediately directed DOH and DEC to conduct sampling for lead once the reported details about the Wappingers Falls park were released. Work is already underway and out of an abundance of caution, the park is temporarily closed. The results from this sampling will be made public as soon as they are available.

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