Tuesday, September 27, 2011

Cisco SLM2008 8-port Gigabit Smart Switch - PD/AC power


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Cisco® Small Business Smart Switches deliver cost-effective switching solutions that are ideal for small businesses or workgroups within larger organizations. These high-speed switches offer entry-level management without the cost and complexity of a full Layer 2 managed switch.

The Cisco SLM2008 8-Port Gigabit Smart Switch is ideal for conference rooms, labs, shipping/receiving departments or in marketing, design, or audio/visual workgroups. The eight 10/100/1000-Mbps (Gigabit Ethernet) ports enable companies to link to other Gigabit devices on the network (servers, workstations, and network storage) to quickly move bandwidth-intensive files while still supporting 10/100-Mbps clients.

The Cisco SLM2008 supports the IEEE 802.3af standard for Power over Ethernet (PoE) for obtaining its power over a designated powered device (PD) switch port or from an external AC power adapter. This gives companies the option to install the switch in places where a power outlet may not be present, such as in ceilings and walls.

The Cisco SLM2008 is able to secure the network through IEEE 802.1Q VLANs and IEEE 802.1X port authentication. For environments where IP multicast applications are used, the switch is capable of limiting the traffic to only the ports that have requested that traffic, with support of Internet Group Management Protocol (IGMP) snooping. Additional quality-of-service (QoS) capabilities, such as IEEE 802.1p, differentiated services code point (DSCP), and four hardware queues, make it possible to maintain good quality for real-time applications such as voice and video. The Cisco SLM2008 offers an easy-to-use browser interface for managing and configuring the features, making it ideal for small businesses without an IT staff or that have minimal technical expertise.

This review is from : Cisco SLM2008 8-port Gigabit Smart Switch - PD/AC power
Great product! Typical Linksys Reliability! SEE UPDATE BELOW . I bought this switch to replace a failing 10/100 switch at home. So far, it's been a great product (in use for just about a month) though I haven't yet had a need to use the QOS or MAC restrictive features. But it's a fantastic gigabit switch!

UPDATE 11-12-2008: My switch failed just over a year later. At first, my computer's network card kept getting disconnected and I'd have to reboot the switch. After a while, it stopped letting my pc connect at all. I rerouted my network cable from the pc to another switch and it hasn't gotten disconnected since. I think the other reviewers may be right that it eventually overheated and failed. Going to contact Linksys for a replacement.

UPDATE 01-18-2009: I did contact Linksys on getting this item replaced. After the usual round of explaining the problem to tech support and having them make me try everything I had already tried again, they authorized an RMA. The RMA process took about 2-2.5 weeks. I did the basic RMA where I shipped the defective product to them, they get it, test it, and send a replacement if broken, instead of cross-shipping or having them charge me for a replacement until they receive the defective unit. When I received the replacement, I put it back in place on my network and so far so good. I think it's a good product, but now I'll have to see if this one fails around the same timeframe or not.
Cisco SLM2008 8-port Gigabit Smart Switch - PD/AC power Reviews
Judging from reviews reliability is not its strong point . My switch failed after 6 months of light usage. I had it installed in a Leviton wiring cabinet, the kind that fits into a wall.

Linksys product support was helpful and readily agreed to replace it without a lot of questioning. Fortunately, it has a 5 year warranty.
Cisco SLM2008 8-port Gigabit Smart Switch - PD/AC power Opinions
Mileage may vary . I purchased two SLM2008's at the end of October 2007 and while they are feature rich and seem to provide good performance they also run fairly hot.

Just recently (after 4.5 months) one of my units failed (overheated) after I ran a lot of traffic through it (many sessions, not high speeds necessarily). The unit was very hot to the touch and was dropping packets until it finally failed. This device is out in the open with great airflow, but I guess too much electronics are packed in these little switches.

Perhaps you need forced air across them to keep them cool while under load?

This product may work great for you, but just be aware of the potential heat issue.
Best Switch with stable connection . My house with all gigbit network cable around and use this to split for all my devices (TV, DVD Player, Hi-Fi, 3 desktops and 2 laptop). The connections never drop and I am able to experience high speed of file transfer between computers. Very reliable product.

Cons Review
2 units failed due to overheating . I purchased 4 of these for use as "loaner" switches at the company I work for. I have had two of them fail from overheating after 2-4 months of use, they just stop working, and were extremely hot to the touch. Definitely looks like a design problem, and I would highly discourage anyone from purchasing one of these.
These fail repeatedly. Linksys not helpful after several replacements. . We purchased over a dozen of these for use as desktop switches at our company. Both the SLM2005 and SLM2008 models. They all begin to fail at approximately the same time and within a week all are dead. At first Linksys was happy to replace them. However, after about the fourth round of replacements, they are now giving us the run-around and asking for more details about the failures before they can be replaced. My response, "They just don't work!" Seriously. You can no longer reach them on the assigned or default IP address, nothing connects on any of the ports. It matters not whether they are powered by AC or PoE.
Steer clear of these doorstops.
SUPER POS . Switch 8-PORT Gig Smart with pd
I used this switch for almost 1 year. It carried very light traffic. I noticed it always ran hot. One day I decided to fry an egg on it. Worked great (I thought this was a switch for data!?) I powered on my computers one morning and nothing worked. I checked and the switch was on but none of the LEDs were lit, besides the Sys. Sound familiar? Read the other reviews, they all have the same problem. Tells me something.

I called Linksys (Cisco) today and they require me to pay shipping to return it to them - no way around it. WOW - only in America can you produce crapola like this and make the consumer pay to return it to you for replacement. Maybe I should consider myself lucky that I can get a replacement. Maybe that is why they give it a 5 year warranty. Maybe they made an extra few runs these switches to cover the returns.

I would not recommend this switch. If you don't believe me, see the other reviews - there are many with EXACTLY the same problem.

Buyer BEWARE!
Linksys slm2008 dead after one year . The Linksys SLM2008 has great features for it's price. I like the VLAN feature which I used to put my gamer son on a different subnet..

Alas, the unit died after a little over one year. The power light comes on, but that's it. None of the ports work.

Based upon my experience, I would not buy this switch again.
Thsi is real garbage. I rarely make an assessment like this . I admit, as a professional network Architect, I use Cisco and Juniper equipment all the time. The desire to have a Inexpensive "Managable 5 port (SLM2005) or 8 port (SLM2008) switch with QOS support is strong for those doing
VOIP or looking to aggregate NAS drives on to a Gige switch. But I have now had 3 SLM2005's fail on me, and 2 SLM2008's fail on me. Not one lasted a full year. They were purchased in a group when I upgraded servers and systems about the house to Gige. Here I am xmas day, I need to get at my Raid 10 Thecus 4100Pro photo gallery to store pictures from this AM, and that NAS is unavailable.. They all are. Another SML2008 death. I checked the P/S,. and it is indeed putting out
+12VDC, center pole positive, and I can load it to 1.0A, so this means it is the switch AGAIN and not the power supply.
I have had multiple units replaced, and have had no problem with timely replacement, but the failure rate on these
units are terrible. Normally I would open them up, and analyze what failed, and report it. It is often a burst capacitor, or a diode goes bad which then takes a few other components with it (this should make sense if you know what a diode does for a living... allows current to flow only one way...). When it can flow in the opposite direction than that intended, it often does damage to other electronic items which they protect.

If you need a cheap manageable switch and you can't find other choices, buy Two, so when one dies in under 12 months
you can swap the switch, and send it back. This way you always have a spare. at this point, if there were another 8 port Gige managed switch with the same features, I would be buying it and replacing my remaining SLM2008's...

Ok until it comes to muticasts... . In general, for IPv4 and IPv6 unicast the switch is ok. But be aware that when it comes to multicast the switch is broken in in a variety of ways:

IPv6 Multicast

1 port in, all other ports out, no snooping, no nothing.

IPv4 IGMPv2:

The "Leave" report is "successfully" suppressed by the switch.

IPV4 IGMPv3:

Any multicast report containing more than one multicast group is mangled by the switch to unreadability. This means that you *must* not subscribe to more than one multicast group on one interface when using IGMPv3.

Well, I can stand the IPv6 multicast behaviour, even when it is not nice, neither correct. But when it comes to IPv4 one would expect from a company lice Cisco, that publishes IGMP white papers on their site, that the behaviour of a Cisco switch is correct with regards to protocol specification.

If there is a bug, one would expect a way to submit a bug report. Not so with Cisco. Until you pay for some kind of a service contract there is no way to report a bug. I do call this a great way to call a product bug free and thus give only two stars to this one.


Feature Cisco SLM2008 8-port Gigabit Smart Switch - PD/AC power

  • Former Linksys Business Series
  • Eight high-speed ports optimized to support bandwidth-intensive applications
  • Uses Power over Ethernet to draw current from a supported network device, adding flexibility to your installation process
  • RAM - 9KB memory
  • LEDs - Link/Act, System




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Product Details

EAN : 0745883579969
UPC : 745883579969
MPN : SLM2008
Brand : Cisco
Weight : 2 pounds
Height : 3 inches
Length : 12 inches
Width : 8 inches
Binding : Personal Computers
Department : Network Switches
Format : CD
Hardware Platform : Pc
Manufacturer : Cisco Small Business
Model : SLM2008
Operating System : Windows
Platform : Windows
Publisher : Cisco Small Business
SKU : DHSLM2008
Studio : Cisco Small Business

Where To Buy


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