Cisco Switches :: QoS Configuration On SRW2024 And SGE2000 SBS Switches
Jun 26, 2011
I have a Campus LAN setup which is layed out using Cisco SRW2024 and SGE2000 SB switches. On the LAN we are running various services. These are CCTV, VOIP(SIP), Public Address(multicasting) and Internet hotspots to various locations. I have attached a layout of the setup. A unique VLAN is setup for each of these services.The problem we have is that the PA audio is breaking up at intervals making the output distorted this is also happening for the SIP phones within the facility. Using the user guide we have tried to setup QoS on the system but we seem not to improve the services.
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Jan 28, 2013
I did not know to update the boot software of my SRW2024 first, then update to 1.2.2b.I need to go back to the 1.0.0.86 firmware.
Is it downloadable and will it work (ie work backwards and then do it properly)? I know how to use hyperterminal and the xmodem protocol if need be.
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Oct 6, 2011
I am unable to connect to webview on our SRW2024 switch. I use a macpro G5 running 10.6.8. When i try to connect to it through Safari, Chrome, or Firefox using 192.168.1.254, I receive a message that a connection cannot be established. 192.168.1.254 is the ip mentioned in the manual. I used an ip scanner and it showed the actual ip is 192.168.0.1. But I cannot connect to webview through this ip either. We got this switch a year ago and did not change any settings, we just connected it and it worked fine. But now we want to change some settings on the switch but cannot connect.
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May 10, 2011
Have an SRW2024 that I was updating firmware and it got interrupted. Now I can't access the switch from either console or IP. Switch will not pass traffic. Is there a way to get this switch completely reset so I reconfigure and use it again?
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Mar 26, 2013
I HAD similair problem:[URL](Have ver 1.1) Forgot password. Restored to v1.0.0.86 via telnet Been playing around with telnet AND web based updates Read somewhere else (Web-based ONLY works with IE) (Tried Web-based and keep getting "Copy Failed/Undefined Error" and 0 Bytes transfered) Know to upgrade "Boot" first, then "Software Image" THEN reboot
Tried telnet (not through web-based startup) Can get to "lcli" (by Ctrl+Z twice)Retyped Username and Password:
At "console#" tried typing "copy tftp:///srw2024_16_boot-101.rfb boot" didn't work : "Must be valid URL or reserved keyword"
Where am I going wrong?
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Jan 24, 2011
Every "once in a while" (about a week with my network load), the SG300 crawls to an almost standstill of all IPv4 activity (haven't got IPv6 enabled here yet, so I can't comment wether this applies to IPv6 as well). It seems pure L2 transmissions is not affected, but L3 definitely is (down to 20mbit as opposed to the 600+ rate I usually get).
Soft-rebooting the switch (via the webgui) useful, and the intervals of the crashes seem related to total bytes transmitted, not time. I have jumbo frames enabled, and disabled flow control on on the switch and all hosts.
Firmware Version is 1.0.0.27, md5 1987292110f5657e74308dde30c03dc4 Boot Version is 1.0.0.4 md5 4c9a0b6a9f1346736646d08ab94ae2ac
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Apr 26, 2011
What kind of cable is required to connect to the Console on a Linksys SRW2024 switch ? ( I've lost the original cable )I use the following settings: Speed 38400, 8 bits, no parity, no flow control and stop bits 1I have tried a serial cable, no go.I have tried a null modem cable with partial handshaking, no go.I have tried a null modem cable with full handshaking, no go.For the null modem cables, if I use it to connect between computers using hyperterminal it works very well. What I type on one computer appears on the other computer's screen.However, I can't get anything out of the switch. I've tried pressing Enter repeatedly, resetting the switch with the Console cable on, etc.
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Nov 14, 2012
Can MGBSX1 transceivers use on SGE2000? what type of transceivers can be use on SGE2000.
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May 10, 2012
What is the difference between a SGE2000 and a SG500-28?
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Jul 17, 2012
I am running the SGE2000 as my l3 core switch with multiple inter-vlans.
have a customer requirement that needs to restrict eg. GUEST-VLAN10 to all other VLANS in the network. Only allowing access to the internet.
It seems on the switch i am able to bind ACL to per port interface. if this is possible on the SGE2000
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Apr 27, 2011
Searched through conference and still have no resolution.Switch: Cisco SGE 2000..Layer3 mode enabled through console. [code]
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Oct 18, 2012
I'm trying to get a network of SGE2000 switches mapped into Cisco network assistant.It always comes back with the device type unknown and status unsupported device.Is there a way to fix this ? I'm using Cisco network assistant ver.5.7(6)
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Jun 27, 2012
Where I could find an SGE2000 visio stencil? It isnt listed in the Cisco Visio Stencil page?
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Aug 18, 2011
configure a secondary ip address (over the same address range) in a vlan interface on the SGE2000?For example, I want Interface Vlan 10 on mw switch has 172.16.10.1/24 and 172.16.10.2/24. Is that possible? If I try I get an error message with a duplicate IP address error. On Catalyst switches it can be done, but on Small Business?
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Jun 25, 2012
DHCP Relay on a SGE2000 switch.I have configured two VLANs on the switch, VLAN2 (192.168.10.x/24) and VLAN3 (192.168.9.x/24). I have the switch in Layer 3 mode. I have configured the DHCP relay server of 192.168.10.4 and the DHCP Interfaces as VLAN3. All of the IP Static Routes were generated by the switch.
If I put a client computer on a port that is Untagged VLAN 3 and try to get a DHCP address from the server on an Untagged VLAN 2 port I never get a response back.I have done some packet captures and here is what I have found:
I see the DHCP broadcast on the client computerI see the DHCP Request on the DHCP server coming from the IP assiged to the switch on VLAN 3 (192.168.9.254)I see the DHCP server respond with a DHCP OfferThe DHCP offer never gets to the client computer I can't seem to get a DHCP address to any system not on the same VLAN as the DHCP server. Option 82 is disable and I did try enabling it, which made no difference.
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Nov 21, 2011
Does the SGE2000 supports NetFlow? I've checked the Cisco docs and also called Cisco support to which no one has been able to answer me.
Anyhow, just in case it doesn't support NetFlow, how to be able to set up something that would be able to check the bandwidth usage on each port?
I've got a problem where I think the SGE2000 switch is failing when I pump around 190~200Mbps through x2 of the ports (Server A on port 1=130Mbps and Server B on port 2=60Mbps) of Multicast traffic (UDP). I can measure the output from the Streaming servers that provide the multicast content, thats how I know the input to the switch and I know that there are no packets lost or any errors departing from the servers, yet when I increase server B to say 80Mbps, I get break up and all sorts of problems on the client end STBs and it is happening on the multicast content provided by Server A too which is a different source, so I'm 99.9% sure its a SGE2000 switch problem which is why I'd like to monitor it somehow.
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Oct 10, 2012
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.
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Nov 24, 2012
We have a couple of cisco SGE switches connected to a single DELL, between the cisco switches we have a trunk interface. I'm not sure which setting should be configured on the switches to get it working because a loop is occuring.
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Jan 19, 2013
I currently am using the SGE2000 switches for our datacentre and they have run great. We are looking at replacing them as part of our normal equipment refresh and have questions about what is the best switch for us. We are looking at upgrading to at least 48 port switches which isn't a huge issue.The main purposes of the switches will be for iSCSI traffic between Starwind SANs and Vsphere 5.1 hosts. We had some latency issues with one of the SGE2000s but otherwise they've been great.
We also will use these switches to handle our feeds from our ISP and our normal interserver communications. We have had DDoS attacks in the past of 40k packets per second and 600mbps and the SGE2000 never even flinched. We don't need it for any layer3 routing (which we use virtualized PFsense for). Looking at the Miercom report the SG200 series looks like it would be fine for us but I'm just worried around the part which mentions it becoame unresponsive in a DoS attack and also whther it may be slower for iSCSI. Both series seem to support flow control and jumbo frames.
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Sep 18, 2012
I have a Linksys SGE2000 Switch and I've been trying to get Vlan's to work.How I'm trying to setup is like this
Port 1 - Vlan22 - Plugged into trusted port in firewall
Port 3 - Vlan25 - Plugged into DMZ in firewall
Port 15 - is plugged into a VMWare host. The network is setup as production is Vlan 22, DMZ is Vlan 25.
Port 16 - Internal server so is Vlan 22
Both Vlans have a different IP subnet.I think I have port 3 configured ok as it's only one Vlan. I'm trying to get Port 15 configured properly and it won't work.Servers on VMWare hosts are Windows Server O/S.
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Nov 17, 2011
We have been set the task of securing a small managed office system which is currently set up with a standard switch allowing each of the offices (containing different companies) to see each other, and in some cases, access each others documents across the network.
Obviously this is a far from adequate set up and our aim is to isolate each office using VLAN's but share a common internet connection provided by the managed offices. We have two Cisco SGE2000-G5 layer 3 switches but we are new to Cisco equipment and VLAN's so we are not quite sure on how to implement this. DHCP would need to be provided by a Router, there is no Server. We are open to suggestions on the Router as we have yet to purchase one.
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Nov 7, 2012
We've been trying to monitor the used bandwidth of our SGE2000 and SGE2010 switches with Nagios.We've been experimenting with the various OIDs and we've found the OIDs linked to the different switchports.
Though when we use SNMPWalk (to find the OIDs connected to the port) the names of the ports are all the same.
[code]....
Is there a way to change the names of these interface to unique names?We've already given unique names in the description field through the switch's GUI, but it doesn't make any difference for Nagios.
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Apr 19, 2012
We have a standalone Cisco SGE 2000.
We lost connectivity to the web user interface - it no longer responds on the configured IP address.From the manual we see that by default the switch get its IP address via DHCP - but we find no record of any ip address assigned to this switch.Is there a IP address that this unit defaults to when DHCP is not available? Also - what is the best way to connect to the console using Windows 7?
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Jan 10, 2012
I am trying to update the SGE2000v1.0 with 24ports to 3.0.1.0: url...I got the error "illegal software format" using tftp.
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Aug 11, 2011
The 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.
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Aug 21, 2011
How to erase or remove configuration file from ESW 500 Series Switches?
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Aug 22, 2011
I'm having trouble getting a stack of three sge2000 switches to connect together and NOT reboot.Two of the switches are older Linksys sge2000s and they stack well together, but as soon as i connect the new Cisco sge2000, it will make them both reboot sequentially, even though it detects that it needs to be #3 in the stack.SW 1 port 24 is connected to SW 2 port 12 and they function correctly (both of the linksys switches). The documentation states they should be connected in a ring topology so I first tried completing the loop with SW3 (the newer cisco sge2000). When that had the aforementioned troubles I just connected SW2 port 24 to SW3 port 12. Still forcing the switches to reboot.I SUSPECT it may be a firmware/software issue, but I wanted to check if they'ed even work together.
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May 28, 2012
We have PC's that connect through the Siemens IP phones and back to the cisco 3750 which is connected to our core 6500 via L3. The phones use a voice VLAN and the PC's use another VLAN. The whole setup seems to work ok but I was just wondering if the QOS was configured correctly. Our current config on our 3750 switches are mls qos trust dscp on the port that connects to the phone and PC and mls qos trust dscp on the L3 links. The phones are configured for "QOS L2/L3"From the reading I've done so far it seems that any ports connected to a L2 device should be set to cos and not dscp?
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Apr 6, 2012
How do I make the following work with Cisco 302-08G ? I have a 4-port Cisco wireless/wired router that allows for a guest account. I also have Cisco SF302-08 that I bought so I could use its port/vlan mirroring capability. How should I configure the network, given the aforementioned equipment, so that I can get a single point sniff.
Assume I have two wireless clients, one using the "regular" wireless SSID, and the other using the "guest" SSID. I can see 192.168.1.x (regular SSID) and 192.168.169.x (guest ssid) on the internet side (one the same physical cat5 of the wireless router. So far so good. But, I would like to use 302-08 to actually allow the guest SSID/network comm cable)unicate with the regular SSID/network. For example, if I ping 192.168.169.x from 192.168.1.x, I would like to see a response. Can I make them communicate properly with the 302-08 ?? if so, what do I need to do ?? (I will also have wired clients tied into the 302-08..so its important that it be the central sniffer point).
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May 11, 2012
I'm having trouble in connecting a SG 300 switch with CCA v3.2. I have already connected the switch with CCA, however I can't see anything in my CCA's Front Panel and Topology view. Here is the view of my Front Panel view after I connect the switch ?
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Aug 24, 2012
I'm adding it to an existing infastructure, with multiple VLANs. I believe I have it set up correctly, however whenever I daisy-chain the switch in with the trunk ports, it's not passing the VLAN info correctly. There's not a lot of configuguration involved, so I'm not quite sure where I might be going wrong. I've attached a couple screenshots that show my trunk port configuration.
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May 2, 2013
I have been trying to setup vlans on a SG300-28p but they are not working. This is my setup: I want Switch1 to have ports 1-10 to access the DMZ, and 11-24 the LAN. Then i wan to add switch2-4 to extend the access to LAN.
i tested with cisco 2960 switches by just telling what ports whould have access to DMZ and LAN but the small business switches are different..
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Feb 19, 2013
I am trying to get an SF500 in to CCA for configuration. I can find the device in CCA, and it prompts for a username and password, but it doesn't accept the u/p combo. I confirmed that the combo works when tel netting to it.
I have telnet, ssh, HTTP and HTTPS enabled on the switch, but the results are the same. On the console, it tells me that the the connection has been rejected. It appears as though CCA is also trying https, as it is rejecting that stating "credentials expected to be encrypted". Is the SF500 compatible with CCA? I've found nothing online to the contrary. I am using CCA version 3.2.1.
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