I have a AS2511 device connected to the console ports of two switches console. I needed to have a LAN connectivity to these switches from the AS2511 device. Can we use the RJ45 serial ports in the AS2511 to achieve this?
View 1 RepliesIm trying to upgrade my IOS. It wasnt at ROMMON before but I thought I can upload the IOS on the xmodem so i did a
en
conf t
config 0x0
reset / reload
Now that I am in the ROMMON. If i type CONFREG to change the BAUD, nothing shows up. Usually it gives options but this time, nothing.
>confreg
>
So I tried to go back to the normal CLI
[Code].....
I turned on the router manually and turn it back on hoping that it will work but it brought me back to rommon.
Issue with Linksys E3000 router (firmware 1.0.02). I'm experiencing issues with the following wireless connections:
-iPhone 4G (wife's)
-iPod Touch 2G
-PC with wireless connection (non Linksys brand adapter)
-Acer NetBook (non Linksys brand adapter)
The issue is the connection gets interrupted and dropped, but the devices and the router DHCP clients table show the connections are still present. By interruption, I mean no data traffic is being transmitted.My wife's iPhone 4G and my son's iPod Touch wifi both show they are connected to the home network, complete with wifi bars being displayed, and the checkmark is present next to the home network connection in the the device settings for both. When I check the E3000 DHCP clients table, both Apple devices are listed as holding a connection. Yet both devices display network errors when trying to use any app that connects to the internet. By restarting the wifi connection on each, the connection is restored to the point where traffic now transmits. My wife and son estimate it is after about 10 minutes that they encounter the interruptions.
On the PC and NetBook, the connections have to be terminated and reconnected. I have not timed these to see how long before the connection becomes problematic.Interestingly, my ASUS laptop and my iPhone 4G do not have the issue, nor does my work laptop (Dell).There are no timeout parameters in the router config. Closest thing to it is the Beacon Interval, but I don't know which way to adjust it (up or down) to manage the devices that are experiencing interruptions. I have not made any interval adjustments...at this time, everything is set to default settings.This E3000 replaced an aging WRT54 (hardware v2) router so that I could have an N router in the house.
i found that cisco small business SF302 PoE managed switch connect with the end device (RFID component) would causing packet drop issue.how should i isolate the issue and proper troubleshooting? would it cause by the PoE issue, or the 10/100 base etc.
View 5 Replies View RelatedI have a strange problem with a SG300-10 (our first SG300) working as a desktop switch.When a PC that is connected to the switch is powered off and is later (a few minutes or next day) switched on, the PC has a ethernet-connection to the switch, but no IP-connectivity.The PC-statistics shows that ethernet is connected and it sends packets, but the PC does not receive any packets.At the same time the SG300 statistics for the port says, that the ethernet is connected (same paramaters as the PC) an that the switch is sending IP-packets (broadcast and unicast) to the port, but does not receive any packets. The switch shows follwing entries in the ram log for the port: [code]
With the older firmware 1.2.9.44 the IP-connectivity worked after waiting 5-10 minutes.With the new firmware 1.3.0.59 I can wait even 15 minutes, there is no change and nothing happens.But when I change some "unimportant" parameters of the port (i.e. change port speed from autonegation to fixed 1000M, or vice versa) and then save the running configuration to the startup-config, around 5-10 Seconds after the configuration is saved, the port gets full IP connectivity and after that works fine (until the PC is switched OFF and ON the next time).This is a very strange behaviour. As "PC" I have tested this with HP-workstations, Lenovo Thinkpad and a MAC Mini. The switch "reacts" to all the same.Following I have attached the config of the switch. [code]
I´ve got a strange problem with the connectivity within a ring topology.There are five switches from the SGE2000 series and one SG200-50.The SG200-50 is the root bridge and RSTP is configured.From the root bridge switch (Switch 5) I can ping Switch 0.But I cannot ping Switch 0 from PC0.
On the other hand I am able to ping all other Switches (1-5) from PC0.In addition to that I can establish a RDP connection from PC0 to Server0.This tells me that there is no general problem with the connection from PC0 to the Switch0.
Right now when I want to configure Switch0 the only way is to connect to Server0 first.But we have to move Server0 and this is why I want to manage Switch0 from PC0 like any other Switch on that network.
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.
i have a SG300-28 switch here but I do not have the password to login the device. From the startup config of the switch, I see the login password is encrypted. Are there anyway for me to access the device without reset it?
View 2 Replies View RelatedUsing a sg300-52 switch I created two VLANs that share a port for access to the internet. All original devices added to the VLANs are functioning correctly so I have to beleive the VLANs are set up correctly. I added a new desktop and an old laptop to the VLAN and neither worked. I was able to get the desktop to work by enabling VLAN tagging in the network adapter. The laptop is 5 years old and it does not have any such setting in network adapter. There are 2 other devices that share the same port with the laptop and they both function properly. My conclusion is that the laptop does not support VLAN tagging. Is there someway to configure the switch to account for this?
View 6 Replies View RelatedI have a recently purchased 28 port SG300 switch. Everything is working well. Unfortunately there is so much traffic flying around that a 10MB half duplex device is struggling to function as it is overloaded. Removing some of the sources of traffic fixes it.
Fortunately I only need to access that device from one PC on the network. That PC however needs to access everything else on the network.
Is there a simple way to shield the slow device from everything except traffic from the PC ?
The switch is in Level2 mode at the moment. Everything is on a single sub net.
I purchased 2 SG500x switches that I will stack and connect to a NAS device at 10G. I need to purchase transceivers. The documentation has me confused. I just want to make sure that I can use SFP-10G-SR to stack and as the interface to the NAS. S1/S2 for stacking and XG1/XG2 to connect to the NAS all at 10G.
View 1 Replies View RelatedIf there is a Network product which does "Routering" and "Firewalling" functionality at the same time?If there is then what are the advantages and disadvantages against using a Router only device connected to a Hardware Firewall only device.
View 6 Replies View RelatedI am unable to successfully authenticate my SG200 to either a Cisco ACS or Windows2008 RADUIS server. (C3750x on the same network authenticates fine).
Q1. Is this feature (management login authentication to a RADIUS server) supported on the SG200?
Q2. Is so is there any configuration guidance available for both the SG200 and CSACS / WindowsServer2008 NPS?
I hav not got as far as 802.1x uthentication yet, but config example of this would laso be useful.
In asus router model rt-n10, there is a client list when you bring up 192.168.1.1 showing names of devices also mac addresses and ip addresses. How do I add names to the list so I know which devices are using what ip etc. I have tried the advanced settings in the router to see if I can do it this way , but no luck.
View 1 Replies View Relatedbefore I open a TAC case: How does Cisco Prime NCS handle the device licenses for stack of 3750 switches? Just one device license for the stack or a license for every physical switch in the stack? I can't find a answer on the Cisco website, but maybe one of you knows it from a deployment you have done..
View 2 Replies View RelatedThe switch sge2000-g5 a small business switch, has a redundant power supply port built in the switch. It is a port that handles a 12v power supply. My problem is to find the exact device to supply the power to this port so I can have, obviously, a redundant power in my switch. This switch is actually out of production.
View 1 Replies View RelatedI bought an ESW 540 8-port switch, mainly for the POE capability over all 8 ports, so that we can power some SPA50X phones.The concepts of a "managed" switch are challenging for a newbie.Is there a way to make this device behave like a boring "unmanaged" switch ??We have plenty of bandwidth, and don't need to be troubled by QoS and virtual LAN's, or all the security stuff at this time.Making this device work like an unmanaged switch (aka plug-and-pray).
View 2 Replies View RelatedWe are using LMS 3.2.1 with SP1 and Campus Manager 5.2.2.Server runs Windows 2003 R2.Everything runs fine except for User Tracking on two Catalyst 6500 switches running CatOS. These devices are discovered, reachable, SNMP works fine, neighbors seen. But when we try to launch acquisition, the UT utility complains with this error message:"Failed to start acquisition: Device unreachable. Please enter a valid device."When we wanted to add ports via Device Trap Configuration, LMS has fired a different error message: "There are no ports to configure for the selected device(s).Check whether you have selected any router(s)." I have checked the portsData.xml file, which doesn't have any ports included for the two devices: [code] We have tried to exclude / include the switches in the data collection, but that didn't work.
View 3 Replies View RelatedMy BEFSR81 is my primary router and has DHCP turned on. The router's DHCP range is set to accommodate 12 devices. I have three computers wired to it and their Host names (as specified in the set-up of each computer) show up in the router's DHCP device table. I also have two printers (one old Brother HL5250DN laser printer and one new HP Photosmart Premier C410a inkjet printer) connected and there are blanks where the Host name should go. I would like to be able to tell which printer is which when I am looking at the DHCP device table. How can I get a names associated with each printer's IP address in the router's DHCP device table? (The real problem is that the router seems to have both printers at the same IP address (192.168.1.100) and if I can get one of them to change I'd like to know which one it was!)
View 1 Replies View RelatedThe problem: I need to track a bus from city to city in real time.I'm thinking of a gps device without screen or apps, it only sends the current location to a server. Is this possible? What device can be useful?
View 1 Replies View RelatedIf I have two stackable switches one switch uplinks to one 6509 core switch and the other connection uplinks to another 6509 core switch, and also the other stackable switch does not connect to the core switches. Because I am using hsrp and also we are not using vss then one uplink to the core is not in used only ones is so then how does creating an etherchannel between does two uplinks to both core switches benefit me in anyway such as more bandwith and using both uplinks at the same time or I'm I wrong?
View 7 Replies View RelatedI have 2 switch groups.
2 SGE2010's with VLAN's defined as 10,20 and 30
Vlan 10 is the management VLAN, and it uplinks to our border router.Vlan 20 is the workstation VLAN, and all workstations point to the switch as their default GW? Vlan 30 is the ip phone VLAN, and all phones use this as their gateway.
I would like to put a LAG between said switches, we have some servers on the ip phone switch that need to be accessed by the workstation clients, and the single 100mb link through the router is probably not going to be enough.As I understand it, because the switches have different networks on them, a simple lag will not work. I did create a lag, and assign ip addresses to each side, however in that mode, it doesn't appear I can block vlan 10 from transiting the LAG, and with out that block I will end up with a logical loop, and spanning-tree will block one of the uplinks, or the LAG itself.
If I have two stackable switches were only one stackable switch has two uplinks one uplink goes to one core 6509 switch and the other uplink goes to the other 6509 core switch can a Layer 3 etherchannel be used if each uplink go to a different core switch, by the way hsrp is running between both switches and also can you give an example how data will be routed from the stackable switch through the ethernetchannel to one of the core switch accross the WAN to another core switch?
View 1 Replies View RelatedI have a stack of 6 switches and I want to add another over the gbit connector using fiber. I already connected but I can acces the network from the new switch. I don't have any issues on my Stack all resources are available Do I need to do some special setup or connection to enable this? Can be stacked like the others? I already usen the 2 stacking port can i Add another switch?
View 3 Replies View Relatedwe just received 5 new SF200-48 Smart Switches for small business. I noticed only way I can configure them is by using the web gui. Is there a way to enable good old CLI?
View 6 Replies View Relatednow we have 2 switches: SF300-24..on one SF300-24 we config it at layer 3 mode with VLAN configuration same as following [code] And we use port 26 on 2 switches SF300-24 is trunk mode then we connect both SF300-24 switches.But on SF300-24 layer 2 cann't inderstand VLAN from Sf300-24 layer 3..How to config VLAN on 2 switches SF300-24 Layer 3 and SF300-24 layer 2?
View 2 Replies View RelatedI was looking for configuring QOS for two VLANS i have created. these will be for voice traffic vlan 22 and video traffic vlan23. i also have three other vlans for pc's, wireless devices and our cnc machines. we have 5 switches that are all SG30028P's with a single switch doing the intervlan routing (operating at layer 3). all of the switches are trunked back to the main switch and ive been through the guide written on how to do this on a single switch which i dont think is layer 3.
View 5 Replies View RelatedI'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].....
I'm setting up an SNMP poller to retrieve the ARP table (ipNetToMediaPhysAddress) from my SF300 switches. I can retrieve the table from SF300-24P and SF300-48P switches running Firmware Version 1.0.0.27, but get garbage for the MAC address when retrieving that same table on the same model switches running Firmware Version 1.1.1.8. Is there an outstanding defect on this code level? How can I retrieve the table showing the IP address to MAC address mappings?
View 1 Replies View RelatedWe 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.
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?
View 2 Replies View RelatedWe have a project in which we are using 34 Cisco SG200-18's each with a MGBLX1 (LC Single Mode Fiber) SFP mini-GBIC.All the fiber's come back to one building where we must "bridge" all 34 fiber connections. What hardware should be used to accomplish this? A L2 switch? For example, a 12 port SFP Switch with Fiber SFP's accepting the first 12 fiber connections, then other switch with SFP for the next 12 and so on, until there is a overall capacity of 36 and having patch cables between the 3 switches?
what cisco or non cisco hardware would work with these SF200-18's to accomplish this?
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.
View 8 Replies View Related