Network pics thread

we had about 60 3750Gs deployed at one location, just 2 spares sitting in a shelf, never had to use them in 3 years. i have no idea how many there really are at my company, but I'm guessing somewhat in the range of 5000 to 10000 3750Gs and 3750s with PoE (3750G at a location with Alcatel IP phones, they don't work too good with cisco PoE so they use power bricks, and 3750s at locations with Cisco IP phones, 7940, 7941, 7960, 7961, 7965, 7970, 7975, 9951, 9971)
Seen everything from a single switch to a fully populated stack of 9 with all ports used
 
3750s ftw :) the location where i took those has about 200 of them :)
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I have a 3750G and four 3560s for my CCIE lab (No, I haven't started studying yet). They're all loud. Instead I have a fanless SG300 20 port as my home switch. I'd like a 892 or 1941 for my house though.
 
Nice, I am going to get started with CCIE R&S as soon as I finish up CCNP R&S.

For CCNP Switch I used 2x 3550 and 2x 2950 which worked pretty well (I passed the exam)

The only problem with the 3550 is that it can't do PVLAN's or IPv6 so once I start CCIE I'll need to get some 3560's. I set up a lab at work with 3750's so I could practice PVLAN's but I want to be able to lab them in my home lab also.
 
l3thal6 said:
Nice, I am going to get started with CCIE R&S as soon as I finish up CCNP R&S.

For CCNP Switch I used 2x 3550 and 2x 2950 which worked pretty well (I passed the exam)

The only problem with the 3550 is that it can't do PVLAN's or IPv6 so once I start CCIE I'll need to get some 3560's. I set up a lab at work with 3750's so I could practice PVLAN's but I want to be able to lab them in my home lab also.
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If you're interested in getting rid of a 3550, let me know ;)
 
IrishMLK said:
Here is where I get mine from.
http://www.doubleradius.com/Products/UniFi-Scalable-Wifi

We have 12 deployed across three sites so far, and I can manage them all from our home office. I am planning some PicoStationM2 with UniFi in the near future for one of our plants that has a large lumber yard. I like the idea of 1000mW APs out there in a wireless bridge setup.
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are you doing L3 adoptions?

I couldnt get it to work, but mine were running like 1.3.3 out of the box and I realized later that support for it was patched into 2.2

I didnt retry it as I fit them in my main subnet and VLAN'd the SSID traffic
 
l3thal6 said:
The 3750 is a great platform, I've seen them deployed in IDF's with no cooling for years and never failing. Just left a site where we had about 60 3560/3750 deployed.

Although one time there was a weird PoE issue with one switch, it simply wouldn't supply power to the phones connected to one Ethernet Controller, we checked over the config and didn't see any issues.
After that we did the lazy troubleshoot , tossed up an emergency outage warning and reloaded the switch. Everything worked after that.
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I just did this last week, apparently it's a common issue with these in our environment (we have ~12,000 3560 POE switches though :p), and it fixed the issue no prob. I've also seen it clear "faulty" POE ports on sh power inline with a simple reload if "sh post" comes up ok and power is available. POE can be odd sometimes..
 
Always a good way to the start the week. Everything inside the plug had completely melted.

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I had that happen when I did sound and lighting at school...on more than one occasion I found burnt up 30A twistlocks...them suckers are not cheap.
 
spiderjericho said:
I have a 3750G and four 3560s for my CCIE lab (No, I haven't started studying yet). They're all loud. Instead I have a fanless SG300 20 port as my home switch. I'd like a 892 or 1941 for my house though.
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I have a 3560e in the house and it's quiet as long as it's cool. Once it heats up, though, it gets really loud.

Moved the server rack out with the rest of the telecom equipment (overkill for any home, underkill for a [H]ard home) and home security equipment/camera DVR. It can be loud out there and not bother me at all.

Of course, I'm wanting to sell that thing and get a cheaper 24 port Gb PoE switch or a few PoE injectors and a standard switch. It's not the sound, it's just that it is way too much for my needs. I could use it for CCNP, but even then it's just sitting there depreciating. I'll have to take a pic of my updated setup and post it. I need to clean up the wires, though. I don't want to get made fun of TOO much. :D
 
jeffmoss26 said:
I had that happen when I did sound and lighting at school...on more than one occasion I found burnt up 30A twistlocks...them suckers are not cheap.
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the twist lock's are pretty decent price, not to much $$ but the picture shows pretty small wire. NOT a good idea.. probably stressing the current load at the contacts of that plug..
 
shadynet said:
goofy as in "why is there about 1/3U space in between?"
they told me to do it like that just because the PoE switches seem to get a little warm ;) and there is lots of space in most racks
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If you have lots of space, use a whole U. LOL!

Adding a 1/3rd U of space won't make a bit of difference since the back of your cabinet is a wall.
 
valve1138 said:
Yeah, 12-3 for a 30 amp twistlock?

12 gauge wire for a fucking 30 amp circuit? :rolleyes:

Brilliant.
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Holy crap did not notice that at first. Yeah that is BAD. Pretty sure you need at least 10 gauge. Even if less than 20 amps was going through there, the connector expects a bigger wire so the wire was probably not making proper contact.
 
Red Squirrel said:
Holy crap did not notice that at first. Yeah that is BAD. Pretty sure you need at least 10 gauge. Even if less than 20 amps was going through there, the connector expects a bigger wire so the wire was probably not making proper contact.
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the plug was rated for 30Amp, but the wire is no where near capable of that.. Looks like some shit head installed it..
 
dashpuppy said:
the plug was rated for 30Amp, but the wire is no where near capable of that.. Looks like some shit head installed it..
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The wire is rated for 25 amps. Over is over, but it is "near" 30 amperes.
 
For all those of you screaming bloody murder, it was a 2200VA UPS which had a 5-20P plug previously. It wasn't going to get near or over 25A. Sorry to ruin the fun...
 
Blue Fox said:
For all those of you screaming bloody murder, it was a 2200VA UPS which had a 5-20P plug previously. It wasn't going to get near or over 25A. Sorry to ruin the fun...
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Just so you know about your "Fail" it takes a few amps to do what your PLUG is showing us..


EDIT, also using a 125V plug on a 230V connection = major FAIL !
 
dashpuppy said:
"near" = fire. ^^ perfect example.
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Sure, if you want to change what you meant by "near", that's fine. Your previous post implied that the 30 amp circuit vastly overexceeded the rating of the cable. That's simply not true. Indeed, 12 gauge SJEW is underrated for a 30-amp circuit. But it's only one gauge too small -- not several gauges too small, ans your "not even near" comment suggests.

Thing is, SJEW cable can really take a lot of abuse; the jacket is rated for 105C, so the 25 amp rating given by the NEC can usually be exceeded. If the cable was the problem, it would show signs of deforming or melting. No such signs are evident in the photo. Since the damage is localized to the connector, the most likely problem was a poor, loose screw-in connection in the connector head.
dashpuppy said:
EDIT, also using a 125V plug on a 230V connection = major FAIL !
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Is it possible to push an L6-30 plug into a receptacle designed for an L5-30 plug?
 
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mikeblas said:
Sure, if you want to change what you meant by "near", that's fine. Your previous post implied that the 30 amp circuit vastly overexceeded the rating of the cable. That's simply not true. Indeed, 12 gauge SJEW is underrated for a 30-amp circuit. But it's only one gauge too small -- not several gauges too small, ans your "not even near" comment suggests.

Thing is, SJEW cable can really take a lot of abuse; the jacket is rated for 105C, so the 25 amp rating given by the NEC can usually be exceeded. If the cable was the problem, it would show signs of deforming or melting. No such signs are evident in the photo. Since the damage is localized to the connector, the most likely problem was a poor, loose screw-in connection in the connector head.
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My point is, it's all plain and clear there in the picture. It's done wrong! Fire hazard no matter what. !

You don't use a 125V plug on a 230v circuit.

if yuo look at the picture closer, it's not just one conductor its 2 that is melted, so it had to have pulled a decent amount of current before it started to get warm..
 
dashpuppy said:
Just so you know about your "Fail" it takes a few amps to do what your PLUG is showing us..


EDIT, also using a 125V plug on a 230V connection = major FAIL !
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You must not have ever experienced or seen an electrical short. Also, if it were 230V, it would be using only half the current. Too bad for you a large number of 2200VA of UPSs are 120V, so once again, more assumptions.
 
Blue Fox said:
You must not have ever experienced or seen an electrical short. Also, if it were 230V, it would be using only half the current. Too bad for you a large number of 2200VA of UPSs are 120V, so once again, more assumptions.
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Ive seen tons of electrical short's the picture you have shown us is a plug that has PULLED way to much current, thus causing the weakest point to get hot and melt..

2200Va ups at 120v where ?
 
Speaking of code violations, I always get a kick out of people who put their panel in a bathroom:

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Technically if you used an outdoor rated panel you'd be fine but I still would feel uneasy when I'm taking a shower and filling that room with steam. :p
 
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