Cisco Switches :: SG500-28 How To View Port G27 And G28 In GUI

Jan 31, 2013

how can i view the port G27 and G28 in GUI? As based on the GUI Adminstrator - > Port Management - > Port Setting i only can view from port G1 to G26. Or it will only appear when the port is active for stacking.

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Cisco Switches :: SG500-52P - Only 1 Host Per Port

Jan 15, 2013

 I have 3 x SG500-52P switches stacked. Vlan 1 is data and Vlan 3 is voice Port to Vlan membership is 1UP and 3T Port security is disabled
The issue I have is that I can have either a phone or a PC plugged into a port but not both. If  I plug in both then the phone works and the PC gets an IP address (Broadcast traffic) but PC cannot browse the network.

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Cisco Switches :: From SG500 Port Appears Up But At SG200 It Is Disabled

Jan 4, 2013

I have an SG-200-8 which connects to a stacked pair of SG500-28P switches. It is powered by PoE from the SG500. From the SG500 the port appears Up, but at the the SG200 it is disabled and nothing I do re-enables it. I know the cable is good because I had a previous netgear switch hanging off it and working, also the power gets through.I can only connect to the switch if I disable wifi and plugin a manually configured PC - DHCP doesn't get through to it from the SG500 end.I have tried a second SG200 same problem. Have disabled RSTP/ STP thinking it might to relate to the fact that a PC connected to the switch also had a wifi connection to the same LAN, but. Don't know where to go next. looks like a bug?

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Cisco Switches :: SG500-28P SNMP Query For Individual Port Power Output?

Aug 26, 2012

Is there a way to ask the above switch how much power it's supplying to various ports?I've found some stuff in POWER-ETHERNET-MIB, but it's only the main power supply and the up/down status of the various ports.
It looks like what I want is


but my SG500 tells me:

snmpwalk -v2c -cpublic serverswitch
CISCO-SMI::ciscoMgmt.402 = No Such Object available on this agent at this OID

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Routers / Switches :: Port Forward On A SAGEMCOM SE567 Router To Be Able To View DVR?

Jun 12, 2011

How do I port forward on a SAGEMCOM SE567 router to be able to view my DVR from a remote location?

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Cisco Switches :: SGE2010 - How To View Table Showing Which MAC Address Is Plugged Into Which Port On Switch

Jul 31, 2011

I volunteer at a school who just purchased two 48 port SGE2010 managed switches.  I am not a big fan of the web gui and was hoping to see the standard Cisco command prompt instead of the menu-type interface.
Is there a way to view the MAC table showing which MAC address is plugged into which port on the switch?  I have been fighting with the menu and the gui for a while now and do not see this anywhere.

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Cisco Switches :: SG500 Stacked Switches Getting Errors?

Dec 16, 2012

We have 3 SG500-52 switches that are stacked and configured for layer 3 that replaced a couple of SG2010 switches a month ago. Switch units 1 and 2 are for servers and unit 3 for the workstations. The switches are connected with stacking SFP+ copper cables, 1 1M and 2 7M cables. The problems are occurring between the workstations and servers resulting in slow traffic on some links and connection failures. A repeatable failure occurs doing a backup from a PC on unit 3 to a server on unit 1 and 2 (2 port LAG). Moving the workstation to a port on unit 1 results in successful backups every time.

Initially I was able to confirm packet loss between my PC (on unit 3) and the servers using ping (ping -f -c 100000 -s 1460) of about .1%. The iperf program in udp mode also showed some packet loss and in tcp mode showed slow connections. A week ago I then upgraded the switches from v1.2.0.97 to v1.2.7.76 and rebooted. After that the ping and iperf tests show no problems although there are still slow connections to samba shares and the backups still consistently fail.

I suspect there is a problem with the stacking connections and have searched for traffic statistics on the stacking ports to look for errors but have not found anything. Doing a snmpwalk didn't reveal anything that I recognized. There are interface counters for all the ports except the stacking ports.

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Cisco Switches :: SG500-28 Stackable Switches And NIC Teaming

Apr 17, 2012

Am looking into using stacking and NIC teaming to create redunancy for user access to servers. What I am thinking is getting 2 SG500-28 switchs and configuring them in a stack that appears as one logical switch. Now on the servers I would configure 2 NICs to be a team so they appear as 1 logical interface, perferably in an active/active configuration using LACP. In this NIC team take 1 team member to switch A and the other to switch B, so each team member is on seperate switches. 
Givent the scenario:
1) Will that work with the 500 series switchs? Reason for the switches is their price point is perfect for my client.

2) Besides the stack link will there also need to be a LAG between the switches or does the stack link do data traffic also?

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CIsco Switches :: SG300 Or SG500 That Has All Ports As SFP?

Feb 14, 2013

Is there an SG300 or SG500 that has all ports as SFP ports?

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Cisco Switches :: Difference Between SGE2000 And SG500-28?

May 10, 2012

What is the difference between a SGE2000 and a SG500-28?

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Cisco Switches :: Downloaded New Firmware For SG500

May 8, 2013

I have downloaded the new firmware for the SG500.   I see there are two files included in the download, a boot file (rfb) and regular firmware image (ros). I have looked and haven't seen anything about the rfb files. I know it is a boot file, but do not know if I should update the boot file first and then the firmware image or vice versa. Also, in my update screen on the SG500, the boot file option is greyed out.

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Cisco Switches :: Possible To Make Stack With 3 SG500-28

Jun 2, 2013

I wonder if i can make a stack with 3 SG500-28.

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Cisco Switches :: Stacking Requirements For SG500-52P

Jun 4, 2013

I have a Cisco SG500-52P along with an older SGE-2010P, am I correct that in order to stack they must be the same series?

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Cisco Switches :: ESXi Management Not Working With SG500 LAG

Jan 8, 2013

I am setting up a 3 host ESXi cluster. I am using a pair of stacked SG500-28 switches for switching redundancy. Each host has 8 NICs. 4 to each switch. I have successfully setup a 3 NIC LAG with 1 path to one switch and 2 paths to the other. These LAGs work. When I setup a 2NIC LAG via the console for management, and the associated ports on the switches, I lose managment communication with the host. Before setting up the LAG in the ESXi console, I set that vswitch properties to us IPHASH as instructed here I have attempted to follow those instructions as closely as possible. The one thing that I am wondering is whether the SG series supports etherchannel. I can't find any reference. Either way, it works on the other vswitch that is for vMotion. I can vmkping between the hosts over that LAG. But setting up a LAG on the management vSwitch doesn't?

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Cisco Switches :: SGE2010 Stacking Compatibility With SG500

May 29, 2013

I am currently running two SGE2010 in stack and planning to purchase new Sg500 .I have two questions :

1.  If these two different products can be managed as one stack.
2. Are the SFP (mini-GBIC) connections compatible and if so what accessories or parts do we need to enable them?

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Cisco Switches :: Setting SNTP Time For SG500?

Jan 13, 2013

I had connected a computer and NTP to the SG500. i had successfullly sync the internet time on the computer. but when i type 'show clock' on the terminal. The switch did not manage to sync the ntp time.
clock timezone sg +8
clock source sntp
sntp unicast client enable
sntp server

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Cisco Switches :: SG500-28P Does Not Handle NLB In Unicast Mode

Apr 8, 2013

We have a problem with NLB on a SG500-28P which is a major issue for us.
I am investigating a problem together with Microsoft Support about a download/upload performance issue with a Microsoft Forefront TMG array which is connected to a single SG300-28P. Àpparently this issue exist on every NLB array we implement. I am now at the point we asume the SG500-28P does not handle NLB in unicast mode very well.
We have a network topology as shown below:Please note the actual public IP Addresses are hidden and the internal IP Addresses are diffrent, for security reasons.
Our SG500-28P is configure in L3 mode. It hosts three subnets you see above. The two TMG servers are configured with NLB (in unicast mode) on the Internal Network and External Network interface. It is connected to the internet and our internal network. These TMG Servers are in fact Edge Servers. Our other servers and client are in a different VLAN. The default gateway flows through this NLB Cluster [].
Problem: When a client uses its default to connect to the internet the performance is very and very slow. With an internet connection of 10/10 we get 10/2. With an internet connection 100/100 we only get 7/1!.
Now we have tried everyting we can imagine. I can't write down all, because that would be a lot. One thing is worth notice; When we move the client to the same VLAN as the NLB Cluster and the client uses as its default gateway, the problem still exists. But... when the client uses as its default gateway the performance is outstanding 95/95! Apparently if traffic for the NLB Cluster is routed through the SG300-28P the performance drops like a rock.
I have never seen this before with SG300 series switches, although this environment is different. Normally I would configure NLB in multicast mode. But the switch does not allow to add static ARP entries for multicast MAC Addresses.I know NLB in unicast mode introduces switch flooding and such. But why does the SG500 not handle this right? Is there anything I can do about it?

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Cisco WAN :: SG500-24 - Switches Between Cable Modem And Router?

Feb 25, 2013

Currently, my Cisco DPC3010 cable modem is connected directly to one of the Ethernet ports on my Linux router.  All works quite well that way.  However, I'm curious to know if there's some what to separate the router and cable modem over 2 switches?
The coax enters the house in my living room and connects to the CM there.  The router is also sitting in the living room, and it's connected to a Cisco SG200-18 switch.  I have Ethernet running from my living room to my basement, where a Cisco SG500-24 switch sits.  The two switches are connected via a 2xGigE port channel.
I want to move the router into the basement.  Ideally, I'd like to move the CM down there with it, but I don't have the necessary coax run.  So for now, that's out.  But... can I go from something like this:
--coax----- Cable Modem ---GigE----- Router ---GigE---- SG200-18 ===2xGigE==== SG500-24
To something like this:
--coax----- Cable Modem ---GigE-----  SG200-18 ===2xGigE==== SG500-24 ---GigE----- Router
I tried it, complete with a separate VLAN specifically for the CM traffic.  And the VLAN was properly trunked between the two switches.   But for some reason, the router was unable to communicate via IP to the upstream.  I'm not sure if there are config bits I need to set on the SG200 that the CM is connected to?  I thought I'd read somewhere that CMs don't like broadcast technology such as LLDP and/or CDP, so I disabled both of those on its port.  Did I miss something else perhaps?  Or am I trying to do the impossible?
For what it's worth: the IP connectivity is static.  There's no DHCP running between my router and the upstream cable provider.  The cable modem is literally acting as a L2 coax-->Ethernet convertor, more or less.

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Cisco :: SG500-52P-K9-V01 Switch SNMP Port Control

Mar 13, 2013

I'm trying to disable/enable ports via snmp v2 on a Cisco SG500-52P-K9-V01 switch.  The communties are setup properly and I even have successful snmpset commands which when queried display that the action was complete.  The issue is that when I disable the port via snmp the device on that port does not drop offline.  This is a PoE port with a device powered over PoE so I'd expect the port to disable but also the PoE to turn the device off - neither happens. 
Any experience with port management on this device?  I also noticed the interface IDs (for port 1 for discussion) are 1, 101, 201 etc.  I've tried setting on 1 and 101 only but the results have been the same and what were mentioned above.

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Cisco Switches :: SG500 Possibility To Bind ACL To A Virtual Interface

Mar 24, 2013

I have a switch from SG 500 Series the works as Layer 3 Routing Switch with the Firmeware I have create some diferent VLAN´s and have defined one ACL for each VLAN. Now i try to do a binding from the ACl to a VLAN but i have only the option to bind the ACL to a phys. Interface or  a the a possibility to bind the ACL to a virtual interface like in other Cisco serieses and how it works ? the Backround is i have connectetd 2 Hyper-V Server where the Guests are in different VLAN´s and the server is connectetd with a 10Gb Trunk to the Switch now the switch routed the different VLAN´s and i must have some restrictions between the VLAN´s.

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Cisco Switches :: SG500-28P Slow Switch Uplink Connectivity

Feb 26, 2013

At our office we have a weird performance problem with the following switches and connectivity:
Internet     |
SG300-24 (L3) core switch     (in our server room)
|SG300-10P (L2) access swtich     (in our meeting room)     |
SG500-28P (L3) switch     (in our meeting room)
We are building a new computer infrastructure that is connected to the the SG500-28P. As you can see above the SG500-28P in our meeting room has an uplink to the SG300-10P in the same meeting room. And again the SG300-10P has and uplink to the SG300-24 in our server room. From the server room, there is connectivity to internet. The network uses a multiple VLAN's and routeing between them. Bootom line is, the internet VLAN ID 10 is tagged to trunk ports and available on the SG500-28P. So client get connected straight into the internet based VLAN.
The performance on the SG500-28P switch itself from VLAN to VLAN is very fast. But... the uplink connection tot the internet and other VLAN's on the core switch are very and very slow! At least 10 times slower than normal. So if I plug a laptop in the SG500-28P and go from uplink to uplink, it is slow! But... when I connect the same laptop to the SG300-10P the connection with only one uplink it is fast. As if three switches is to much. I can't figure out why.

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Cisco Switches :: Switch Inaccessible When Create IP Interface On SG500-28P

Feb 3, 2013

I have a brand new SG500-28P sitting on my desk.
The swtich is configured and going to operate in L3 mode. All ports are still assigned to the default VLAN ID 1. I have created several new VLAN's. Once I configure and aplly an IP Interface to a certain VLAN the swtich becomes inaccessable right away. I am pretty sure I am not pulling my own VLAN under my connection. Every port is inaccessable. I have to pull the power plug and restart the swtich with its saved configuration. Even when I add another IP interface to the default VLAN 1, same issue. I have tried lot's of things, but can't get it to work properly. I have just upgraded to the latest firmware.
I have configured dozens of SG300 swtiches which is very easy. This one does not work with me.

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Cisco Switches :: SG500 - Migrate From Default VLAN1 To Different VLAN

Mar 1, 2013

I have an SG500 that is already deployed with some Access VLANs on it. The PVID is still the default 1. I am trying to change it to 19 with as little interruption as possible. If I just go to the VLAN Management Tab and change the Default VLAN to 19 and reboot the switch, will it migrate my management IP to the default VLAN without any trouble? Would it be less interruption to: Create VLAN 19, assign it an out of subnet IP address, change a port to PVID 19, connect directly to that port, go to that IP address, remove the original management IP from PVID1, change all the ports to PVID19 then change the management IP back to the original?

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Cisco WAN :: SG500-28-K9-G5 Weird Symbols When Trying To Connect Through Console Port

Feb 18, 2013

I have a SG500-28-K9-G5 at work and I'm tyring to connect to it trough the console port via Putty and get wierd symbols: When I press any button I see alot of wierd symbols comming up, for example if I press shift+6 or Enter (or anything). [code]

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Cisco Switches :: Possible To Configure A Cross Stack Ether-channel Between 2 SG500

Jan 17, 2013

Is it possible to configure a cross stack etherchannel between 2 SG500 (in stack) and 1 SG200/SG300?

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Cisco Switches :: Main Differences Between SG500 And Catalyst 3750 Command Set

Feb 3, 2013

Could you provide me the main differences between SG500 and Catalyst 3750 command set?

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Cisco Switches :: SG500 DHCP Server Does Not Assign Predefined Static IP Addresses

May 17, 2013

I upgraded my SG500 switch firmware to, since there is a new functionality DHCP server v.4 well I must say I came accross the issue I cannot solve. DHCP server assign dynamic address - no hassles. troubles start with static IP hosts.I defined a couple of hosts with static address within the correct subnet. I tried with hardware address and client identifiers. no luck. my switch does not assign the IP address I assigned to the suitable mac address. to define it I use both CLI & Web.

ip dhcp pool host HP-Elliteaddress client-identifier 01:d8:d3:85:cf:09:72client-name HP-Ellitedefault-router
ip dhcp pool host VAIO-Zaddress hardware-address 54:53:ed:1c:a1:46

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Cisco Switches :: SG500 LACP Trunk Mismatch Native Vlan On Individual Ports

Jan 22, 2013

I have just configured up a sg500 with a lacp trunk to an upstream switch.
I am getting native vlan mismatch on the individual ports of the lacp team.
24-Jan-2013 12:54:48 %CDP-W-NATIVE_VLAN_MISMATCH: Native VLAN mismatch detected on interface gi1/1/24.
24-Jan-2013 12:57:35 %CDP-W-NATIVE_VLAN_MISMATCH: Native VLAN mismatch detected on interface gi1/1/48.


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Routers / Switches :: Can't View Cameras On The Web?

Oct 28, 2011

i have a public ip and private still my cameras are not working i can't view them on the web.

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Cisco :: Configuring Port Forwarding To View DVR Cameras Outside?

Dec 6, 2012

I have a DVR machine that I've been trying to carry out port forwarding to view cameras from outside the network. It lies on The confusing thing is the ports. The configuration on the DVR lists a device port: 8000 and a http port: 80. I am torn between which port to forward.

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Linksys BEFSR81 - Can't View DVR Port Forwarding

Mar 25, 2013

Router: Linksys BEFSR81
Modem DSL-Centurytel: Westell 7500 (wireless and 4-port router)
DVR - QSEE QS558 8 channel.

I can successfully setup a DVR connected to the Westell (router/modem), forward ports and all is good for remote view, cellphone and PC. But, if i connect a DVR to the BEFSR81 router, then forward ports, ie 83, 9000, 18004, then forward same ports on Westell, using the BEFSR81 ip. I can see the port from outside the network. ( port 83 is open. But i cannot view DVR? if the port is open and the DVR is using said port, why is it not viewable? The DVR uses a DDNS and when testing, the DVR will communicate with the DDNS without issue.

Westell is 10.0.0... and the BEFSR81 is 192.168....

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Cisco Switches :: SRW224G4 - Cannot Access Web View Management Interface Through IP Address

Jul 12, 2012

I am the Systems Admin at LDM Media and am trying to get some support for one of the SRW224G4 managed switches we have in our rack. The issue is as follows:

Any endpoint connected to the switch is assigned an IP address in the range of 169.254.154.XXX regardless of the switches set IP range, the second issue is that I cannot access the web view management interface through the default IP address (and I have tried to use the last IP in the range set by the router, to no avail)
How to regaining control of this supposedly smart switch?

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Port Forward DVR IP Address - View Cameras On Public Website

Jul 12, 2012

I recently installed a First Alert Security System and assigned IP address to the DVR but within the DHCP (After reading many threads, I will asssign, ping and create a static IP outside of the DHCP, maybe this will resolve the issue). I am able to view the cameras on my iPhone and HP Laptop but only internally on my network. I am trying to port forward my DVR IP address to be able to view the cameras on a public website. Although I am going to chcek and see if assigning an IP to my DVR outside of the DHCP and hopefully this will be it, I am afraid that my CradelPoint CRT 500 Modem will not support it. I read on one thread that this is a common issue after you have exhausted all the options. How can I be sure that my modem supports that my router port forwards? I want to avoid configuring to run in bridged or pass-through mode.

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