Cisco Switches :: SG300-10MP No LED Light At Port

Jun 10, 2012

today i got a sg 300-10mp PoE managed switch.
 
I plug the network cable and set an IP to GUI to the default IP (192.168.1.254)the problem is the port doesn't show light when connect to notebook. How am i supposed to enter GUI.
 
why the port is like in shutdown state and not enable? do i need to do anything via console??

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Cisco Switches :: SG300-10MP Keeps Going Down?

Jan 27, 2013

We purchased a SG300-52 last week to replace a 5yr old Dlink which has worked perfectly. 1 day after the SG300 went it it started crashing with this fatal error problem so I reverted the firmware back from 1.2.7.76 (latest) to 1.1.2.0 but I still get the problems.  It crashes when I have it on my lan with users connected or if I just have the switch on my desk with just my laptop connected, so it cant be a load issue or a network topology issue.  I already have a Cisco SGE2010 on my network without problems.

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Cisco Switches :: SG300-10MP Keeps Crashing?

Sep 4, 2012

We are in an organization of 80 users with 5 Sx300 series switches with the latest firmware (1.2.7.76). The network is mostly flat with all switches feeding into a Cisco ASA5505 acing as the primary gateway for Internet Access. Only our two 48 port POE switches have an additional vlan configured for the VoIP phones. We have one SG300-10MP that is powering 5 Cisco Aironet 1024N's that keeps crashing. A couple weeks ago it went down twice in one day. I updated the firmware and it did not have any hiccups unitl today. This issue has been consistent since we installed the switch in April. Originally the issue seemed to be caused by too much bonjour traffic causing a buffer overflow (we have over 100 Apple products). Since I updated the switch I have not seen any bonjour buffer overflow errors. Instead I get the following error when it crashes:

2147424534 2012-Sep-05 15:12:28 Emergency %SYSLOG-F-OSFATAL: FATAL ERROR: tExcTask: ABORT DATA exception ***** FATAL ERROR ***** SW Version : 1.2.7.76 Version Date: 19-Jul-2012 Version Time: 17:54:43 Instruction 0x18 Exception vector 0x10 Program state register 0x80000092 %SNMP-I-CDBITEMSNUM: Number of startup configur ation items loaded: 133 %LINK-W-Down: gi1 %LINK-W-Down: gi2 %LINK-W-Down: gi3 %LINK-W-Down: gi4 %LINK-W-Down: gi5 %LINK-W-Down: gi6 %LINK-W-Down: gi7 %LINK-W-Down: gi8 %LINK-W-Down: gi9 %LINK-W-Down: gi10 %LINK-I-Up: gi9 %LINK-I-Up: Vlan 1 %LINK-I-Up: gi1 %STP-W-PORTSTATUS: gi9: STP status Fo

The CPU and PoE supply are far from being overloaded.

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Cisco Switches :: Can't Get SNTP To Work With SG300-10MP

Feb 13, 2013

I received an SG300-MP as an RMA replacement for a Linksys SRW2008MP and I can't seem to get the SNTP to work.Previously on other devices I have only had to set the SNTP server name or IP address and that was it.  So some of the options of the SG300 are foreign to me.So I first set

     Administration > Time Settings > System Time > Main Clock Source (SNTP Servers)   [X]
 
Then I set several SNTP server IP addresses

Administration > Time Settings > SNTP Unicast
SNTP Client Unicast    [X] Enable
> Add
Other / 64.147.116.229    (nist1-la.ustiming.org)
Other / 24.56.178.140     (wwv.nist.gov)
Other / 128.138.141.172 (utcnist2.colorado.edu)
Other / 129.6.15.29        (time-b.nist.gov)
 
Some servers I set "Poll Interval" and some I didn't because I wasn't sure what this does.The status for all servers indicate "Down" with 31.12.1899 0.0.0 for the "Last Response"/I found those IP addresses via  [URL] Also the setting

     Administration > Time Settings > System Time SNTP Multicast / Anycast

I have disabled, and I don't know what this does either...

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SG300-10MP / Fiber From Home Office Switch To Equipment Rack?

Nov 10, 2011

I just installed a 10 port Cisco SG300-10MP in my office, 9 of the ports are already in use. Connected to it are

PC
Laptop
Notebook
WIFI AP
B&W laser printer
Color inkjet printer
IP camera
Squeezebox SB3

Cat5e connection to basement HP 1810G-24 switch All of these devices are connected via a single Cat5e cable that was installed when the house was built. I had to re-terminate both ends of it when I moved in because the existing terminations were done very poorly. I have no idea how or where the cable is routed, nor what the quality of this Cat5e cable is. It did pass a test using my cable tester.

This single Cat5e is connected to my main HP switch in the basement equipment rack. Both of these switches have mini-GBIC ports that can utilize SFP transceivers and fiber. I priced out 2 MGBSX1 compatible modules along with a 30M multimode fiber patch 'cable' online at under $150. Although it would require at least a couple hours of work (including digging around in the attic and crawl space and drilling some holes), but running the fiber to the basement is very doable.

My question to my far more experienced forum members is if the performance gains would be worth the effort?My server is in the basement, and despite having an Intel GB NIC in my PC I am seeing read speeds of ~23MBs and writes of ~49MBs to/from my it. My server has teamed GB NICs (802.3ad LACP Layer 2) connected to trunked (LACP) ports on my HP switch.

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Cisco Switches :: Getting SG300-28 Port Mirroring?

Apr 28, 2013

I have created a mirror to copy all packets from Interface gi1 to interface gi28. I don't see any port 80 traffic, or 443 or any revelant traffic. I see mostly broadcast from other devices. I have a security device that is logging all the copied packets from my firewall for malware/IPS, etc inspection.Right now I have it monitoring vlan 1 in the hope that it would resolve this issue but I see no change.

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Cisco Switches :: Port Mirroring On SG300

May 3, 2011

I want to configure port mirroring on SG300 swtich, port monitoring status is "Not Ready" , and i can not monitor the source interface!

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Cisco Switches :: Getting The Port Mirroring On SG300?

Nov 8, 2011

I'm troubleshooting a LAN issue I have, and I wanted to hook up wireshark to record traffic over the course of a couple of hours for later diagnostics. I went into the web administration interface, clicked Administration > Diagnostics > Port and VLAN Mirroring, and added a port mirror from the port I wanted to watch to a port to which I had connected a laptop. I picked the Tx and Rx options, and clicked Apply.I did receive lots of traffic in wireshark, but I noticed immediately that the server on the port I had mirrored was suddenly unavailable on the network -- pings timed out. This lasted until I removed the mirror, then the server was suddenly reachable once again.Does this feature not work the way I had thought it does? What I saw looked more like a forward than what I would call a mirror. The documentation leads me to believe mirroring is intended to be used in just the way I was attempting to use it.

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Cisco Switches :: SG 300-10MP Multiple Vlans But Shared Up-link

Aug 30, 2011

I have 8 apartments that have a single internet connection coming into the building, I then have a PoE Access Point in each of the 8x apartments.
 
What I would like to be able to do is to have each apartment within its own vlan, but to be able to use the internet via one of the non-PoE ports (port 9 say) but do not want residents in different flats to be able to see each others devices on the same network.
 
I have a Cisco SG 300-10MP which has 8x PoE ports and 2x Ethernet ports, one of which my Internet connection is plugged into (using WiMax).

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Cisco Switches :: SG300 -10 / 16 - IP Based ACL Assigned To Port?

Aug 9, 2012

I'm administrator of small network. I wish to replace my old switches by new SG300-10 and SG300-16 managed switches. I have big trouble in my network because everyone can assign IP his neighbour (or any IP) to his network card. I have policy that IP is 172.16.1.X with x is home number. Could I do that IP based ACL assigned to port where is cable from home example 29, permit only IP 172.16.1.29 (mas 255.255.254.0) (from specified port only permit packets with specified source IP (LAN user IP) other (if user set not his IP) is denied) ?
 
I want know that before buying equipment. How to configure that ?
 
I think IPv4 Based ACE, action: permit, source IP: 172.16.1.x (nr of home), widcard 0.0.0.0, destination: any, protocol: any, source port: any ?
 
and in ACL Binding, I have to bound this ACL to port where user whose IP is in ALC is connected?

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Cisco Switches :: To Configure Port Forwarding On SG300-20

Sep 17, 2011

I have a Cisco SG300-20. I have read the documentation and cannot seem to locate the instructions for port forwarding. I need to forward TCP port 8088 to IP address 192.168.14.110 on the switch.

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Cisco Switches :: SG300-28P GBIC Port Not Transmitting

Oct 10, 2012

The switch has been set to Level 3 Routing.  Port 27 has been in use as a Fiber Transceiver with no problems for several weeks. This week I tried connecting a second Fiber Transceiver to Port 28, and it would not work.
 
Swapped the physical GBIC modules in the ports, and the situation remained exactly the same: Port 27 works, Port 28 would not work.
 
Connected to the copper-part of the combo Port 28, it immediately connected and worked fine.
 
Connected an external Fiber Transceiver Box in place of the GBIC in Port 28, and it immediately connected and worked fine.
 
Swapped the new Fiber jumper (Port 28) with the existing Fiber jumper (Port 27), and the new connection came up immediately and worked fine.  The existing connection would not work when connected to Port 28.
 
By "not working", I am not able to ping across the connection.  The link light comes on and blinks.  The transmit/receive statistics show as if data is processing on this switch, but on the other side of the Port 28 connection, the switch shows Transmit traffic, but no Recieve traffic.

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Cisco Switches :: VLAN Port Membership Via SNMP On SG300-28

Sep 4, 2011

Any snmpset commands to modify port vlan membership on SG300-28 switches? I checked [URL] however this information is apparently only valid for catalysts.
 
The latest firmware is installed and the provided MIB files are used.

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Cisco Switches :: SG300-10 Access Port Change Blocks Other One

Jan 15, 2013

I recently bough for a home lab a sg300-10 switch. I have enabled layer 3 routing on it and have come across a puzzling issue. The switch is the default gw on this network, and in front of the switch there is a cable modem (ip route 0.0.0.0 0.0.0.0 192.168.0.7).
 
This is my config:
 
config-file-header
switch5ed948
v1.2.7.76 / R750_NIK_1_2_584_002

[Code].....

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Cisco Switches :: SG300 Port Authentication 802.1x No Logon Servers Available

Oct 11, 2012

I have configured a Microsoft Server 2008 R2 with Radius Server and connect it with a Cisco SG300 Switch.
 
If a new device connect to the switch it goes automatically to the guestnet. If a device with the correct certificate and a valid useraccount connect to the switch, the deivce goes in to the local company network.
 
Now my problem: If I connect a device which is in the domain and which have installed the correct certificate and want to login with a new domain user (which is not cached in windows) I can not login.
 
The following message appears: "There are Currently no Logon Servers Available"
 
I think the problem is that the authentication process only starts after a user have succsess logged in in windows.
 
Now I search for a solution which allows me to conntact the Logon Server for Domain Login before the User has logged in.

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Cisco Switches :: SG300-28P Can Support 24 Ports With 154w Per Port

Mar 6, 2013

I want to know if the SG300-28P can support 24 ports with 15,4w per port at the same time.                  

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Cisco Switches :: SG300 Port Counters Via SNMP / Do They Work

May 24, 2013

I've got an SG300-10 connected back to back (trunked) with a Cisco 3560X switch, across a fibre link and am seeing some big inconsistencies in terms of unicast data transferred across the ports between them.
 
During a night time window of 4am - 6am I run backups which involves a large copy of files, that almost saturates a GigE link - we can see from the 3560X end that the link is running at a bit over 800MBit/sec of throughput, sustained.  The duration of this transfer is consistent with the size of the files being transferred (ie just over an hour, and is what I'd expect for a data transfer of about that amount).  Back-of-the-envelope calculations indicate that the 3560X is measuring this data throughput correctly.
 
However on the SG300 end of the link, which is also being polled by the same application (Cacti), I'm observing spikey counts of only around 20MBit/sec during that window.  These counters are very obviously incorrect - there's a huge amount more data moving across the port than that.  The incorrect calculations are showing on both the trunk port out of the SG300 (uplink) as well as the interface where the NAS is connected in (which is an access port).
 
Cacti is polling the OID:  .1.3.6.1.2.1.2.2.1.16.57  which translates to IF-MIB::ifOutOctets.57 = Counter32.I'm running version 1.3.0.62 but this problem is not new to this release - previous releases and 1.2 based releases also had this problem.
 
It looks like multicast traffic may be being counted correctly (that's only a suspicion though), however what I am certain of is that there is a very large discrepancy with the unicast traffic counts.Is this OID the correct one to be using for this switch? 

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Cisco Switches :: Configure Port To Connect SG300 To 3com Unmanage Switch?

Apr 1, 2012

I have my network with severals SG300 switches.I have one of them like my core switch working in layer 3 mode. With 2 vlans and vlan interfaces to each vlan.Everything is working ok.But now i have to connect one 3com unmanage switch that have host from vlan 1 and 2. How should i connect this switch to my Cisco sg300 switch?

[code]...

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Cisco WAN :: Light Up Every Port Light On 3750g?

Mar 2, 2011

I am trying to light up every port light on a 3750g.  There is not anything plugged into them and I would like to know (just for fun) is there a way to make every port light 1 - 48 turn on using a command?

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Cisco Switches :: SG300-28 GUI Different Than Online SG300-48 Simulator

Aug 29, 2011

These are our first switches and seems like GUI is lot different than the online. Out intervlan routing is o not working. I am absolutely sure that I setup the switch in L3 mode since it allows me to create mutiple interfaces. I am hoping that this GUI issue is related to interVLAN routing.
 
Below is the blog I started for InterVlan issue [URL]
 
This is the link for online simulator and what I see in its IP tab. I know this switch is not SG300. [URL]
 
This is what I see on our switch.
 
Our switch version
switchd64684#show version                                                                                                                                              
SW version    1.1.0.73 ( date  19-Jun-2011 time  18:10:49 )
Boot version    1.0.0.4 ( date  08-Apr-2010 time  16:37:57 )
HW version    V01

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Cisco Switches :: SG300-28P And SG300-52 Web Managing - Fans

May 26, 2011

1) I have a Cisco SG300-28P. I plan to add a SG300-52. Would it be possible to manage the new switch through the SG300-28P web browser ?

2) There are 2 fans in the POE model SG300-28P. How many fans are they in the non POE switch SG300-52 ?

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Cisco Switches :: SG300-28 Uplink To Another SG300-28?

Feb 8, 2012

Can I connect a single Cat5e cable between two SG300-28 and link them?  If so what must I configure?

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Cisco Switches :: Difference Between SG300-28P And SG300-52

Jul 25, 2012

I have SG300-28P that I am using as layer-3 switch. Recently I ran in to SG300-52 switch and even though loading same firmware doesn't give me option to do layer-3 switching. For SG-300 I see options in GUI to create vlan interfaces under IP information section, while SG300-52 has IP information option only under the management section.let me know if these are 2 different hardware types and L3 is not possible on SG300-52. If its possible to enable L3 switching on SG300-52?

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Cisco Switches :: Replacing 3COM 4500 Switches With SG300-52?

Nov 21, 2011

I'm replacing 2 3COM 4500 Swithes with the SG300-52 Cisco switch. We have 3 VLANs, 10, 20, 100. The switch is set for Layer 3 and I have setup DHCP relay. what settings i should set on the Cisco for the following setups:
 
3COM Setup
#
interface GigabitEthernet1/0/1

[Code].....

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Cisco Switches :: SG300 Switches Have Poor Performance In Layer 3?

Jan 1, 2013

We have several of the SG300 Serices switches. We use them to route VLAN traffic to Remote Offices, Internet Connections, and WiFi Access Points.In one remote office we have a SG300-10 setup to route the HQ Network and the remote Office Subnet. The SG300 is Connected to HQ via Fiber and has multiple Tagged VLANs on it. If I do speed tests over the Fiber Link on the Incoming Tagged Netwotk I get Decent performance, 80Mbs. If I switch to a networtk that is not priginating from HQ, and have the SG300-10 route packet, I get dismal performance. 15-20Mbs.
 
I Fireded up a New SG300-28P FW v1.2.7.76. Added a the HQ VLAN 101 and new VLAN 1025 . Mapped some Tagged and untagged ports for each.  Switch was connected to HQ Network as untagged VLAN 101.  I put a laptop on an Untagged VLAN 101 port. Ran some tests, cam back with 750-850Mbs. Great.  Put the same laptop on a Tagged 101 Port, Configured the NIC for Tagged VLAN 101, Same test, same Speeds, 750-850Mbs.I then  Configured laptop for Tagged VLAN 1025. Connected to tagged VLAN 1025 port. Ran speed tests, resuts were 15-20Mbs!
 
I then  Configured laptop for Untagged VLAN 1025. Connected to unagged VLAN 1025 port. Ran speed tests, resuts were 15-20Mbs!It was only the Laptop and the Connection to the HQ net on the SG300-28P. Why is the performance of this unit soooooo poor when it needs to route?Other Switches have FW v1.0.0.27 or FW v1.1.2.0. They have Similar speed issues. All Configured for Layer 3.

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Cisco Switches :: SG300 Switches Can Be Used With Microsoft NLB In Multicast Mode

Dec 18, 2011

does the SG300 switches can be used with Microsoft NLB in Multicast mode?I know on traditional Catalyst switches you can statically "map" IP's to mac's and then to multiple ports but this doesn't seem to work correctly on the SG switches - it gives an error about the mac not being not Unicast?

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Cisco Switches :: VLAN Management Via SNMP On SG300-10 Switches

Aug 7, 2011

Any snmpset commands to add, modify and delete vlan table entries on SG300-10 switches? I checked url... however this information is apparently only valid for catalysts. The latest firmware is installed and the provided MIB files are used.

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Cisco Switches :: Multiple VLANS And SG300-28P Switches Setup?

Aug 20, 2012

I'm going to have several SG300-28P switches to setup.  I'll need to create multiple vlans for data, voice, and wireless traffic.  I have the following questions in setting up this configuration:
 
VLAN 1 Management
VLAN 100 Data
VLAN 200 Wireless
VLAN 300 Voice 
 
1) For managing the switches via IP, will LAN1 be the default management network?  Should I create a seperate VLAN for managing the switches?
 
2) For uplinking the switches together, I plan to trunk a port to connect the switches together.  What's the configuration on the trunk port to forward all vlans from one switch to another?
 
3) On some ports, I want to configure a trunk for two vlans (Data and Voice) where the phone has a pass through for PC.  The phone supports tagging for the PC and the VoIP traffic.  For example on port 10, would VLAN 100 and 300 be set to tagged?

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Cisco Switches :: SG300-52 Multiple Lags Between Switches?

Jan 19, 2012

I'm having alot of trouble trying to connect more that one LAG between two SG300-52 switches.Basically i have configured both switches with the same vlans. For 2 of the vlans i would like to connect them together between the two switches using LAG. Switch1 has Vlan 5 (ports 1-12) & Vlan 10 (Ports 25-36) with LAG configured on ports 1-2 and ports 25-26. I have setup the second switch identical to the first. But when i connect the LAG's there is no connectivty. If i disconnect one LAG the other starts working.Can you only have i interconnect LAG between switches?

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Cisco Switches :: How To Configure Two Links Between Switches SG300

Apr 22, 2012

I have two SG300 serie switches and two Gigabit connection between them. How do I configured these two links to work toghether like a one 2 Gigabit channel?

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Green Ethernet Port Light Always On?

Jun 22, 2011

The green light on my Ethernet port is always on. Even when I unplug the Ethernet cable and shut down my computer. The only way it turns off is when I unplug my computer from the outlet. Also, my computer doesn't receive any internet when an Ethernet cable is plugged in and the yellow flashing light doesn't show either. I know the Ethernet cable is fine and the internet works fine on other computers

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No Blinking Light On The Ethernet Port?

Jun 11, 2011

The modem is sure working and so as the Ethernet cable since I am using it with another computer. I already had the driver updated but still it's not working. I actually suddenly heard noise in my computer before this happened. OS Windows 7.

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Cisco Switches :: Sf300-24p System Light Flashing?

Mar 14, 2013

I changed the setting from static to dynamic and the switch froze up. all lights on the panel flashed, when they stopped the system light on the left side continued to flash. I tryied unplugging unit as well as depressing the reset for longer than 30 seconds. Unit still the same.

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