Cisco Switches :: SF300-24 Can't Change To Layer 3 System Mode
Mar 16, 2012
My SF300-24 switch has been working 100% as a backup switch for a client of mine. At my clients premises it was running 3 Vlan's and doing inter VLAN routing. When my client received their original switch back, I obviously brought my SF300-24 back to the workshop, reset it back to Factory defaults and tried to do a fresh installation on it. I can not get it to change from Layer 2 to Layer 3! I installed the latest firmware but still no go.
Everything works a 100% via the console, but when I go to the System Mode menu and try and edit it, it justs sits at layer 2 and will not chage to layer 3!
i've a problem with my SF300-24 routing. That's my network configuration:
Port 1 to 12 assigned to VLAN 10 Port 13 to 23 assigned to VLAN 20 Port 24 has an ip 10.17.7.254 to connect with my deafult route, beacuse I've also a Linksys RV042 router, connected in turn with my ISP router, having an ip 10.17.7.1.
now 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?
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.
it says that the cisco sg300-28 managed switch default system mode is Layer 2. but i want to change it to layer 3.
i can't get inside the "Console Interface Main Menu" where the switching from L2 to L3 will be done.
I have done the ff:
1. Upgraded firmware to 1.1.2.0 (latest)
2. Reset the switch to factory defaults.
3. The guide stated that in order to perform telnet to the switch, you need to enable it. So I logged in first in to the web GUI and enable telnet service.
4. I can now start telnet on the switch but I can't see the "Switch main menu".
All I can see are these lines from telnet:
User Name:cisco Password:******
switchd5928c#
I just want to know how to get into the console interface main menu where these lines should appear so that i can change the system mode:
• System Configuration Menu • Port Status • Port Configuration • System Mode • Help • Logout
Now, the management interface is listening on all interfaces (IPs). But I would like to configure the switch to only listen on 10.0.9.254. What I need to configure or whether it is possible?
I've been taught/under the impression that vlans and stp stay in the access layer to prevent bridging loops and broadcast storms from taking down the whole network. Well I was reading about backbonefast and how it "Enables fast convergence in the networkbackbone or core layer switches after a spanning-tree topology change occurs." Now I thought that from the distribution layer up we use a routing protocol.
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?
N5K will be running on Layer 2 mode. vPC configured between N5K and N2K Servers are part of Vlan 10, 20, 30 and Juniper SRX firewall is the gateway for all the servers. SRK firewall is Active/Standby mode.
Questions are
1) Is there any non-vPC link required between N5K in this scenario?
2) N5K will pass in/out traffic to juniper SRX firewall durining SRX failover as well as normal operation
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.
I have a new install with 3 SF300 switches, setup as vlan 2, the switch connected directly to the 2901 router has no problems, plug in a phone and it gets an IP, but if connected to either of the two swtiches behind the first switch, they do not get an IP. I am seeing the DHCP request hitting the router, and the router sending the IP to the phone, but it never gets the IP.
All ports are setup as trunk on vlan 2 including the ports that connect the switches together. Not sure what the problem is, but they are going live tomorrow and only have 48 out of 120 phones.
Trunk from 3500 going into SF300-8 #1 QNQTrunk from SF300-8 #1 going into trunk SF300-8 #2QNQ from SF300-08#2 going into Trunk SF300-24, All Vlans from Network 1 seem to be communicating properly between the 3550 and SF300-24 and is isolated from the Transport Network by QnQ. I am having one problem, I can not ping the SF300-24 or get to the management interface. I am able to access other devices on the SF300-24 Vlan1 from devices on the 3550 Vlan1 and vice versa.
An 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.
cisco 2811 - DHCP server..If IP Phone 3905 installed in SF 300 he does not receive an ip address. [code] If IP Phone 3905 installed in the Catalyst 2960 - all OK.
My ISP is providing me with 1 public IP on a /30 network and 14 public IPs on a /28 network. In this example the 10.0.0.1 is the default gw provided by my ISP and 10.0.0.2 is my SF300-08. If I setup my router to route to 10.0.0.2 as the default gw through the interface between the switch and router, can I configure the static routes in the switch to route further to 10.0.0.1?
is it possible to have these 2 networks on different VLANs and configure inter-VLAN routing? I don't want the switch accessible from the 10.0.0.2 IP.
In my network I got 3 SF300 24 p switches. I managed vlan 10 for data and it is also a native vlan and vlan 20 for voice ,1st switch is the core switch and im having a problem in connecting them ?
my new Cisco SF300-48. I want to create 2 vlan (vlan 1 & vlan 2). The switch is set at layer 2. example : vlan 1 (port 1, 2, 3) , vlan 2 (port 4, 5, 6) vlan 1 can communicate each other (port 1, 2, 3) and vlan 2 can communicate each other (port 4, 5, 6)But vlan 1 cannot communicate with vlan 2.
We have a mitel 3300 PBX that is our DHCP server. It feeds an old Foundry Networks switch that nobody knows the password for anymore so I can't even look in it to get some clues. What I think I know is this.
Phones plug into the switch, PC's plug into the phone.
I am assuming this to be the case becase all the PC's get those numbers and when booting up a phone it comes up and says "vlan2 pri 5" during the DHCP discovery.
Like I said the Mitel 3300 is the DHCP server and our internet access is from the firewall's trusted port.
I have put the switch in L3 mode via the console. No matter what I try, the PC will always get IP addresses in vlan2's subnet. Even if I plug the PC directly into the switch.
I have factory reset this baby and all I have done at this point is put it back in L3 and changed the default ip address so I can get to the web GUI.
I am looking for some technical specs on the SF300 series which I can't seem to find in the 300 series data sheet: the maximum delay for traffic through the switchbuffer size for each switchportwhether or not the ports are suitable for shielded cable and connectors
After finishing all of my projects here at work, I decided to finally take a look at a sf300-08 that was left by my predecessor. I almost got into it once via browser but the UI crashed. So I downloaded the manual and proceeded to connect to the switch via rs-232. When I get to the log in screen I cant type anything in and when I try hypterterminal crashes.
I have a couple of SF300-24 switches. When I made needed configurations using CLI or GUI and then saved all configurations. The problem is that switches do not save configurations after reboot.
I have 4 SF300 switches I need to cascade together but the user guides do not seem to cover the physical aspects of cascading the switches.Here is what I was planning.
Does this sound about right?after initial use the setup will be changed to place switches 3 and 4 in a factory at which time we will then use the GBIC connectors and fibre to connect SW2 to SW3 and then SW4 back to SW1.
I have a SF300-24P switch running version 1.1.2.0 firmware. I want to get to the latest release (1.2.9.44) - can I upgrade directly to the latest code or do I need to step through all the versions in between?
I am using a Cisco SRP527W router for our small business. As this device only has 4 LAN ports I want to add another switch so as our business grows I can add more PCs and VoIP phones. I would like to use a Cisco SF300-24 switch and before I purchase am interested to know if anyone has used a SRP527W router with this range of Cisco switches. Are there any compatibility issues or will these two devices work well together?
We have just purchased 20x SF300-24P switches to be installed at our remote offices and we are unable to get RADIUS authentication to work. We already use RADIUS on all our primary network CISCO switches (e.g. 4506s¸ 3560s, 3750s, AP1231Gs,etc) and these work fine so we know the RADIUS server is working.
We are trying to use RADIUS authentication to gain management access onto these switches. Quite simply although we can see that the RADIUS server is accepting the username and password being sent, however the switch says “authentication failed” when to receives the response. We are using Microsoft NPS RADIUS Clients for authentication purposes.
We have upgrade the switches to the latest firmware 1.1.2.0, via the console it seems to have a very cut down IOS version so we cannot use the typical CISCO command set to configure the RADIUS as we normally would. Looking at the web GUI there seems to be a number of options missing including the Accounting port. When debugging is switch on there is no indication to say that any of the settings have been misconfigured.
