I have 3 Linksys switches installed on the rack.
Model No: SRW2024P
SERIAL1: K600015
SERIAL2: JA00621
SERIAL3: JA00476
It is found that from the begining itself its 12th and 24th ports are not working. enable these ports in all switches.
I have an issue with SRW2024P-K9-BR (SG300). Datasheet and configuration guide show me that is possible configure DHCP snooping in this switches, but web interface and console don't appear related menus/commands.
I'm using firmware version 1.1.2.0 and didn't found anything about this here.
This is an odd one, possibly a broken unit but I have a SRW2024P which has been running for a couple of years all OK but some time ago I noticed I couldn't access the web interface. I decided to leave it until I actually needed to change something, which is now!
After much messing around modifying a null-modem cable to work (i.e. connected pins 2,3 and 5) I managed to connect to the console through HyperTerm. Did a full factory re-set and XMoDem'd the 1.2.9 software on again but still no luck.
I tried accessing the web console and telnet with the default IP and tried setting my own IP but can't even ping them.
There are a few other peculiarities: The units MAC address in the console is shown as 00-00-00-00-00-00The units hardware version is blank in the consoleBoth PING and TRACERT tests fail to any address except the units ownTFTP uploads fail to connect (the TFTP server doesn't even log an access attempt)All other clients connected to the switch are working fine and the port statuses in the console show working connections Basically; it is as if the web/config/admin 'module' is disconnected from the actual switch in some way?
I looking to buy SGE 2010 swith, but I have some question:
1. Can I use 4 SFP ports and stack of two switches at the same time.
2. Is it possible to use for stacking ports other than 24, 48?
3. What is maximum possible number of ports to use for stacking (can I get more than 1Gb thruput).
I have a switch containing 48 connections. I have a patch panel that links to lots of access points in my building. One access point was not connected but needed to be but I didn't have any spare switch ports. I therefore reconnected switch 23 from one position (and thus one access point) to another position on the patch panel. Everything worked fine and this new location had network and internet access. Then however a few weeks later I had to change it back so i changed the connection of port 23 to the old position on the patch panel. When i did so port 23 showed a red light and then no light. Later I had to change it back to the other location but when i did so port 23 now shows no light whatsoever. It's as if the connection port just stopped working. Now both the old and new access point locations have no connection and I can't understand why.I tried rebooting the server but no luck. I tried connecting that access point through the patch panel to a different connection port but still no luck.
View 4 Replies View RelatedI have a problem and I dont know much on Cisco Products
The router is Cisco 887 VA
When it starts the Leds Ok AND Fe lan are blinkng then are always on .After 10 seconds lan led is off a and pc shows cable is unplugged
I tried all ports and same thing happened .I tried with different ethernet cord but the problem persists
I installed Cisco Configuration Professional and it hangs on Retrieving Port
i am deploying some SG 300's to some remote sites and will have static IP's assigned to them. the elements that will be plugged into the SG 300's ports will be DHCP. Is there a way to find out what IP's are assigned by port? Either by the Web GUI, the console, a log, etc?
View 2 Replies View RelatedI have open my 25, 110, 80 port on my Server from local i can telnet all those via my private ip but from public ip its not responding.
2nd thing I can ping both ips of My server through private ip and through public ip.
I have setup a Cisco SR520W and everything appears to be working. After a few hours, it looks like the WAN port stops forwarding traffic to the Internet gateway IP of the device.
If I unplug and then plug in the network cable connecting the WAN port of the SR520W to my the modem, traffic startings flowing again. Also, if I restart the SR520W, the traffic will flow again.
Here is my config file:
Building configuration...
Current configuration : 17830 bytes!version 12.4no service padservice tcp-keepalives-inservice tcp-keepalives-outservice timestamps debug datetime msecservice
[Code].....
My SG20-50P Switch Log appears as follows with Random ports going up and down. I am trying to find out if this links to another problem I'm having with a Client Server software locking up on the client end. The hardware, thin clients and desktops, are working and have checked all sleep and power settings. All items in working order, now I'm wondering about the switch
Code...
How does the ESW 500 or SF300 line guarantee QoS of voice traffic when trunking switch to switch? I have (2) ESW 500 series switches in series. The phone on switch 1 have no audio issues, but the phones on switch 2 (the last in the series) have intermittent voice quality issues when dialing across a WAN circuit to another office. The phone on switch 1 do not have that issue though they traverse the same circuit. They are all using the same VLAN 100.
View 1 Replies View RelatedI have setup a Cisco SR520W and everything appears to be working. After a few hours, it looks like the WAN port stops forwarding traffic to the Internet gateway IP of the device.If I unplug and then plug in the network cable connecting the WAN port of the SR520W to my the modem, traffic startings flowing again. Also, if I restart the SR520W, the traffic will flow again.
View 1 Replies View RelatedI have a cisco 6509 switch in which i have 2 SUPs. I am using 3 Qty. of WS-X6748-GE-TX in the same switch. First 24 ports of module 1 and are not working. I replace the faulty moldule with the working one but now the new (good) module's first 12 ports stopped working. But when I insert the good card (the replaced one with the faulty) in other chassis it works fine.
View 2 Replies View RelatedThis has been happening repeatedly time to time! we just replace the part! But now it has come to trouble us again.It happening only in one module like 6 to 10 ports wont work.
we run IOS cat4500e-universalk9.SPA.03.02.00.SG.150-2.SG.bin will there be any bug in it?
Is there an SG300 or SG500 that has all ports as SFP ports?
View 1 Replies View RelatedI am thinking of buying a SG200-26P switch and have a few questions:Is it possible to disable the PoE function on the 12 PoE ports?I need al the ports but only 6 with PoE.What happens when you connect a non PoE device to a PoE port?
View 2 Replies View RelatedI just recently purchased an SG300 10 port switch. After reading through many of the threads here, I was finally able to get the different VLANs to route properly. However, I'm having a unique issue that I'm not sure if it's related to the switch or not. I currently have 2 VLANs configured on the switch.ports 1-4 are native vlan 1 (192.168.1.X) ports 5-7 are VLAN 10 192.168.10.X (Trunk Port with VLAN 1 tagged and VLAN 10 untagged)I have a Hyper-V server connected to both of these networks. The VMs are running on both VLANs on port 5. I have the following problem:When I have a domain controller VM on VLAN 10, I notice that many of the DC communications failed. I took a network trace and noticed that many of the RPC port ranges were failing. I am able to ping all of the hosts on VLAN1 and vice versa. My question is as follows:Does this switch have some type of security option that blocks high range ports? I can't seem to find the menu option indicating that this is the case. I have already set-up a NETBIOS UDP proxy, but this hasn't worked much. I still have problems connecting to machines on this VLAN range.
View 5 Replies View RelatedAn end user is looking to connect 21x IP Cameras to the switch and they require at least 6W port port. Now, the datasheet states that each port on the SF300 provides 15.4W.I need to double check so that the end user will not start connecting the IP Cameras and then half of them might not fire up.
View 1 Replies View RelatedI bought 3 switches (gs 300-28 ports)and i need to connect them to my network, when all the switches are cisco 3560g, with vtp on the vlans.my question is, how to creat vlans on this switch? and Is it possible to make the gs300 learn the vlans on the 3560g?if he dosent has the vtp client?
View 1 Replies View RelatedI have a SML2008 smart switch. I want to set a static IP to each port
View 4 Replies View RelatedI just purchased an SG-300 52 port switch. I'm not sure I understand the use of the extra ports. To the right of the 48 ports are a group of 4 ports. Are these what is referred to as the four shared ports? In practical terms, if I wire the 48 ports to different rooms in our office, and I have two other devices at the rack I want to connect to the SG-300 (a cable modem and a NAS Drive), what port numbers should these two devices be connected to?
View 3 Replies View RelatedI am trying to test the gigabit ports on a Cisco 2950 switch. 1000Base-SX. I have the internet or dhcp server connected to port 24 on the first switch and my pc hooked up to the (any) port on the second switch. Both switchs are connected with a fiberoptic cable with MTRJ connectors on either side.
Now when I use gi0/2 on both switchs all works fine. I get a dhcp address from the router on the other end of the first switch. but when ever I include gi0/1 on either end of the fiber optic cable neither of the ports will initialize (neither of the leds above the ports light up). I have deleted all the config files before booting up the switchs so they should have a default blank configuration.
When looking at the Http web page for the switch I dont see any issues with the port. what can I do to make sure these ports are working or can be configured?
I will not be able to post back any more information about the switch until next tuesday. Im off till then.
I have two switches, WS-3750-24PS-S connected in two cabs via fiber. Patch panels at both ends with patch leads. Used tester to confirm end to end fiber connectivity. When plugged in, one switch lights up the other does nothing.
Ports are as follows:
interface GigabitEthernet1/0/2
switchport trunk encapsulation dot1q
switchport mode trunk
same at both ends. Tried both GI ports same result. swapped transceivers over and the same result, (one switch lit one not - the same switch in both cases). put both transceiver in each switch, (gi0/1-0/2 in a single switch). on the one that lights up in the original scenario we get link on both ports and they come up, on the other nothing happens. shut down both ports on the malfunctioning switch and no shut them, no change.
Show transceivers doesn't show transceivers on the malfunctioning switch, and no attempt is made to bring the ports up if the fiber is removed and replaced.
it is almost as though the two gb ports are kaput. Anything else I can try?
How do FPS's open UDP ports without needing to configure the router to forward them?I never have to forward ports from my router to my PC. Every game i have somehow manages to open the UDP ports it needs without me having to configure my router. Yet when i check to see if those ports are open (prior to starting the programs) they always come back as blocked or closed. Now I'm currently working on a UDP Internet program and need to know how to do the same thing - open ports on a router without having to make the customer configure their routers. I'm THINKING that other programs start with a TCP/IP connection on the desired port and that opens the UDP port. Is this the answer or is there another method used?
View 5 Replies View Relatedhow to forward ports using routers
View 2 Replies View Relatedto access VOD database i must open three ports on the router - not sure how to
View 3 Replies View RelatedI have a linksys BEFSR41 V.2 router with four ports. Ports #1 and #3 are working but the other two do not. The diag. light just blinks rapidly.
View 4 Replies View RelatedSo, I spent some time this weekend troubleshooting the issues I've had with the new SG300-28P switch and POE to many of my devices in the office. As a recap, I cannot utilize all of the 24 POE ports on the switch for POE purposes. Really only every other port [with a few odd combinations thrown in between]. In addition, the SG300-28P switch, on occasion, is sending POE to non-POE devices [e.g. my Ruckus Zone Director 1106].
Here are my POE devices [all 802.3 af-compliant]: 3 Ruckus 7982 access points1 Pakedge access point2 home-automation controllers2 Polycom voip phones I called Cisco support several times in regards to this problem, and they figured it was a hardware issue - a faulty switch. So, Cisco sent me a replacement SG300-28P, which I hooked up today. The exact problem still occurs. Default configuration [fresh out of the box]. No way I can land, for example, the 3 Ruckus 7982 AP's on ports 1, 2, and 3 [or ports 1,13, and 2]. I have to put them on ports 1, 3, and 5 in order for them to power up. In addition, I can't plug any other POE devices on the ports either between or below them. I had to skip another port bay. This is very odd behavior!! Two Cisco SG300-28P's in a row with the same problem.
However, I also had one of the new Cisco SG300-10P switches in my possession for a recent project of ours. I decided to hook up the same POE devices to this switch. ALL POE devices were recognized and worked! No need to skip a port. And it didn't matter what device was plugged in first or not. I am now convinced that it is either a hardware issue [bad power supply/transformer?] inside all of the SG300-28P switches, or a firmware issue.
Both of the SG300-28P switches were running firmware 1.1.2 [the latest on Cisco's website]. So, I decided to install an older firmware version on the SG300-28P switch that I'm returning [installed 1.1.1.8]. Here's what I found out. I could then plug 2 POE devices [e.g. two Ruckus AP's] in adjacent horizontal ports, but not three in a row. In addition, not all adjacent ports. It's funky. For example, I could plug an access point in ports 20 and 21, but not in 21 and 22. No rhyme or reason in how it worked. And I still couldn't plug an access point in adjacent vertical ports [e.g. ports 1 and 13]. BUT...
It's interesting that the same exact switch that would not initially allow 2 horizontally-adjacent POE ports to be utilized WOULD allow 2 horizontally-adjacent POE ports to be utilized when running a different firmware version. It's also interesting to note that when plugged into a "non-working" POE port, the SG300-28P would actually make a small whining noise. Very subtle noise; I could hear it when approx. 1ft away from the switch. The noise was not noticeable when ports were skipped [and POE actually worked]. Therefore, I believe that Cisco has some SG300-28P firmware bugs [at least in the last two versions of firmware] that is not truly allowing all 24 ports to utilize POE correctly. This problem does not exist with the SG300-10P switch.
In addition, I'd like to know when they think a solution could be created if it's firmware-related. If hardware-related, I don't think I'll be recommending any 28P switches in our projects. Perhaps just the regular SG300-28 with a separate SG300-10P. It's a shame because the SG300-28P is more of a bargain when compared to the two separate components.
I have 5 VLANs, I assign VLANs to its ports and make them all Untagged.I created ACLs and a ACE rules for each ACL, and then assigned to the ports.So what i am trying to do is to deny access to from one port to other 4 ports and granted access to any other ports. But it is not working, without last rule "allow any any" it has no access to any ports, with the last rule it grants access to every port even to those I denied.Router in Layer 3 mode, all VLANs have their IP's.
At some moment I was able to work it properly but without using any rules, I just tagged my untagged VLANs to those ports which I wanna get access to. As you can see I want allow ports GE1 - GE4 communicate with 1 to 24 ports but not to each other.
I have 5 VLAN's setup in the sge2010. I have one port (uplink for the network) that I want everyone to see. But have separate VLAN's for different departments as to keep them all separate. Everytime i try and Untag that uplink port, i lose my untag in the original VLAN it was tagged in, and it changes to excluded.
View 13 Replies View RelatedWe are experiencing bridge storms and network slow downs and we believe we have traced the issue down to users plugging a cat 5/6 cable between 2 ports on the wall both wired back to a SGE2010 switch.
So we did a test - we plugged a single short cat 6 cable between 2 ports on a SGE2010, our access switch. Suprisingly, even with STP enabled, the switch DID NOT block one of the ports and in a few minutes the ENTIRE NETWORK was down, as CDP, STP, and ARP traffic became a multi-gigabit storm throughout the network.
Why on earth does this switch not block a port that is obviosly looped?
Every other cisco switch since I started on 1900XL's did this in 1999.
I have a Cisco / Linksys SRW 2016 switch, all was working fine. Powered off and powered back on a day later.Switch powered up and the system light lit.But non of the ports what had cables connected were active....If you connect a network cable to the switch and then a laptop / pc .. The computer knows that there is a connection, but only gives a 169 address. Presumably because the switch cannot get to my dhcp ?I have tried connecting a serial cable to the switch top see if I can see any error, but when running Hyper Terminal I only get the white screen and can not see any POST etc.As far as I under stand it is a straight through cable, do I need a null modem cable to console onto the switch?
View 1 Replies View RelatedI have a 2960 and a 2811 with a hwic card I have one port set as 100 meg and another port set at 10 meg. Both are set to access mode. i need one port for failover (10 meg) . I can't do ether channel on the hwic. How do I prevent a loop when I connect my second connection. While having both connections up. Should I use bpdu guard? the goal is to have one port fail over if the 100 meg goes down. And I'm currently running ospf so it should take the faster connection.
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