It's tight and 3750s aren't really DC switches in Cisco's estimation. You can do 3 meter stackwise cables and essentially leapfrog every other rack to keep the loop closed. And being only 6" tall, the whole rack-top cable-tray system will fit under almost any ceiling height. And if you put a "-bk" on the end of the part number for the little tri-poddy looking mounts ( ), they'll come in black which looks real nice with the dark racks and silver tray. (We put stacks up in pairs so high-availability servers can be dual-homed across two separate stacks - IOS upgrades will take an entire stack down at a time, so HA servers need to be across multiple stacks, not across multiple switches in a stack.)Īnd while you're at it, a couple lengths of Cablofil cable tray and some of their 6" underfloor mounts make it real easy to do top of rack cabling without having to mess with hanging crap from the ceiling. However, a set or two of stacks in each row is very nice and is our current best practice. Definitely not long enough to spread a stack across racks. Standard stack cables are about 14", although we did get a few ~30" to go from the top to the bottom of a full 9-switch stack. Generally the stackables I've been working with (going from Cisco 3750Gs to 3750Xs) have to pretty-much be colocated. It's like a big modular switch but spread out over all the racks to make cabling easier. Yeah, if budget allows, the new top of rack switches with dual power supplies and stacking capabilities are very nice. Is there a better way to do it that I haven't thought of? Can anyone recommend a good 24-48 port patch panel to put in the rack?Īlso, since this has to be copper Ethernet runs, is any reason to not do Cat6? Is there currently a better choice than that? I'm guessing the patch panel would go in the top/bottom depending on if you went under the floor or into the ceiling.
Then I can use different lenth cable from the patch panel to the server depending on what's needed. Once that goes in the cable between the patch panel on the server rack and the patch panel on the switch rack is tucked away in the floor/ceiling and never touched again. The best thing I've thought of so far is some sort of patch panel in each rack. I just need a nice neat way to get the cable there. I can't justify the expense when the existing hardware has plenty of 1 gig ports. Our switch has the port capacity, so putting a small switch in each rack and running an uplink over 1 or more 10 gig connections isn't an option. How do you handle getting Cat 5E (or I guess Cat 6) from your servers to the core switch? Just straight cable runs in the ceiling/under the floor? Patch panels? Or something else?īasically I want to find a better way to go from the NICs in the server to the core switch.
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