Cisco Switches :: SG300 Correct Configuration For Redundant Link Between Two Switch
Mar 9, 2012
I have two switch SG300-10 that need to be interconnect togheter with a simple redundant "cable fail safe" configuration.My idea is use the two uplink copper port of the first switch, connected to the two uplink copper port of the second switch.
How to create a working setup configuration? The first setup that i need, is with only one VLAN1 for all ports,
The second setup is with the VLAN1 assigned to the ports 1-2-3-4 of all the two switch, (linked togheter by uplink ports)
and the VLAN2 assigned to the ports 5-6-7-8 always linked togheter with the same uplink ports.
Is possible use the two uplink port at the same time, as cable fail safe? or use a uplink port 1 for the first group and the second uplink port for second group?
I need to use this configuration for audio cobranet transport, and i need to test the correct configuration for the primary and secondary audio stream, if can work togheter on the same VLAN or i need to separate the two stream, from start to the end.
I am having an issue with LAG configuration on a Cisco SG300 52 switch. I have connected four Ge ports on the switch to the four NICs of a Dell R710 Server on which I installed Windows Server 2008 R2. Without LAG configured, these ports would forward traffic to and from the Dell server fine.However, if I configure LAG on the ports with LACP enabled, then they would not forward any network traffic. Debugging shows that the ports are up but their forwarding status show N/A. Am I missing any configuration? Can I configure LAG on edgeports?
Can someone give me a sample router config (Cisco801) for the below scenario. Not familiar with networking.Server with 2 nic, connected to 2 different switches, each switch connected two lan interfaces of Same cisco801 for redundancy.Server must be able to reach gateway IP (in router) in case of either switch failure/server NIC failure.I also have 2 vlans, going to use same link for management vlan and application vlan.
Before I launch into this can I say that I am very much a novice with regards to Managed Switches and their configuration. I have the following equipment which I have connected to the switch: [code] All of the above are on subnet 255.255.255.0.All of the above communicate with each other during normal operation.Our client is connecting to the switch but his requirement is for his system to "see" the PLC Comms Card as follows:IP: 10.0.3.61 on Subnet 255.255.252.0 .
Using the Internet Explorer interface connection I have created an additional VLAN (ID 2) on Port 10 with the intention of using this as the connection to the client ( I assume there will be further settings required to route the PLC connection to this port) but every time I try to assign the IP and Subnet values and click "APPLY" the changes are not made and the connection appears to hang leading me to reboot the switch.I have connected to the switch via console and changed the mode to Layer 3. I also assume that it is OK for the three pieces of equipment to remain on the default VLAN. How I should setup this VLAN and ultimately achieve my goal.
I have already raised this discussion on "LAN, Switching and Routing" group. But I guess this is the right group for my queries. So I am sending my queries in this group again.
We are using CSS 11503 with one 16FE line card. We have connected 3 servers with redundant link. So FE1-2 in Server1, FE 3-4 in Server2 and FE5-6 in Server3. Our system team has configured APA in their servers as they are using HP-Ux.
1) Do we need to do any configuration at line card.
2) Do we need to do ether-channel at loadbalancer end. if yes, can you share me any cisco doc on how to do it.
I am relatively new the configuring network switches. Could someone point me in right direction to configure SG300-28 as a DHCP server?
From the people I talked based on device specs it should be able to act as dhcp server. However, if we cannot, can it be configured so that clients get DHCP information from Firewall to which L3 switch is connected.
I have a question, does the SG300-28 support VTP and STP?. I want to add it to my network's VTP domain so I don't have to manage vlans manually on the SG300-28 and also be able to configure STP to keep my network loop free.
I have a two fiber connection from our Central Office(6513) to Remote office (6509). I have a requirement that on the remote office if one of the fiber goes down, the second fiber should work as a failover. I am planning to use SUP720-3B SFP to connect to the CO.
Can I connet one fiber to Sup720-3b G5/1 & another fiber connection to G5/2? or Can I connet one fiber to Sup720-3b G5/1 & another fiber connection to G6/2? I am running EIGRP between sites. Any sample config.
I have several SG300-10 and SF302-08P switches running with L2-mode, and after I upgraded their firmware to 18.104.22.168, they began to record the following logs every one hour.
- Severity: Warning
- Description: %COPY-W-TRAP: The mirror-config file is illegal due to failure of previous copy operation/s to mirror-config.Also I found that I didn't see the Mirror Configuration file on the Configuration File Table in the Configuration Files Properties page.
Mgmt Vlan 1 (default) Data VLan 10 (with access to internet) Is there a way to have a PC attached to a SG300 switch such that it can both access Vlan 10 for data and Vlan 1 for managment ? The PC's port clearly needs to be untagged PVID on vlan 10. I have tried adding vlan 1T and setting the port as a trunk port but to no avail, The switch is currently level 2. I am guessing this might not be possible in level 2 without setting the mgmt vlan to 10 ?.
i have a SG300-52 Switch, route mode is enabled, and it is using the latest IOS.I have created 4 Vlans in this switch, till this point its OK, but once i try to give ip addres to the created Vlan either from the GUI or CLI the switch is not responding. i have to go and manually reset the switch using a pin.
i was trying to set up a new SG300-52 L3 switch for switching and Vlan. The problem is that the vlans on this switch cannot get their DNS resolved. Probably a stupid thing i can't get to see, but i think it is a simple solution given switchin is not my expertise.So my setup:
- ISP Wan router: LAN ip 10.0.0.1, DMZ: 10.0.0.2 -> i have to use this router for ISP support. But it suckes, that's why we use own router for firewall, port forwarding etc.
- Nice Router: WAN: 10.0.0.2, LAN: 192.168.1.1
- SG300 L3 switch
This works. I can ping switch, nice router, ISP router and google's ip from VLAN 5.But i cannot ping google using host name. From within SG300 i can. So it has something to do with SG300 not doing DNS right.My Client on VLAN 5 has ip 10.1.1.5 / 24, default gateway and dns pointing to switch: 10.1.1.1.I have put an entry in DNS servers in SG300: 192.168.1.1 active (pointing to Nice router). On client leave default gateway pointing to switch. But put DNS server : 192.168.1.1
I 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.
We have 2 separate networks here, 1 for data (192.168.0.x) and 1 for VOIP phones (192.168.3.x).
I need them to both be connected to different ports on a switch (Cisco SG 300 10 port managed switch) which is then linked to another switch (Cisco Catalyst 2960 48 port switch). Then on this 2960 switch I want the link to be split back into the 2 separate networks. I think that I need to create 2 separate VLANs and assign them to different ports.
What does "ip routing" do on the CLI on the SG300? When I do this, I see it enables ip forwarding, but there is no mention of this in the CLI manual. I'm just trying to figure out what I would use this for, and if I should leave it enabled, or disable it. I have several different SG300 switches in L3 mode, and they are set up in a multi-vlan environment...
My problem is that the switch all of the sudden doesn't boot up anymore. The System LED constantly flashes, after probably 40-50 seconds or so it constantly lights for a second, afterwards all the lights on the ethernet ports light up for a second and the process starts all over again! The console messages:
Device configuration:Slot 1 - SG300-10PDevice 0: GT_98DX3033B (AlleyCat2) -------------------------------------- Unit Standalone -------------------------------------- Tapi Version: v1.9.5Core Version: v1.9.519-Jul-2012 17:55:03 %INIT-I-InitCompleted:
I've seen lots of posts from people having problems routing traffic between two vlans with some complicated examples. Any simple step-by-step example for an SG300 switch (in layer 3 mode) to configure two vlans and sending traffic between the two vlans without an external router?
-VLAN1 10.10.10.0 -VLAN2 10.10.20.0
I've tried to do this through the GUI and can't seem to make it work. I'm missing something in the GUI.
On a second switch (ver 22.214.171.124) when I unplugged the power cord, to my amazement the switch turned right back on (about 1 second later), with the power cord removed. To verify that the power is indeed coming from POE, the upstream switch (ver 126.96.36.199) that is the same model (sg-300-28p), shows all 7 Ethernet ports connecting the two drawing from 2700mW, to 3000mW.
While the second switch is powered from the first over POE, the POE does not work on the second switch to power anything, and the system summary mentions something about "PoE Power Information on Master Unit".
Is this a stacking operation, and is POE on the second switch NOT supposed to work when powered over Ethernet from an upstream switch?
I have inherited a custome with a bunch of SG300's in their LAN room and one out in the warehouse.I need to setup a VLAN and the genius before me did not label which LAN room switch the warehouse unit plugs into. Is there a tool/method I can use to find which switch, and port this warehouse switch is connected to?
I am having some issues with getting DHCP Relay to fuction properly over our SG300-20 Switch.Out current layout is as follows. Hanging off the SG300-20 are a pair of Clustered Checkpoint Gateways with VLAN'ed interfaces in Both of our 2 VLANs, a 3COM 4200G In VLAN1 which has the DHCP server (And all the other Servers) connected to it, and a Pair of HP Procurve 2520's Stacked in VLAN 2 to provide PoE for our Phones/connectivity for our PCs.The problem is I cannot get the DHCP Relay to fuction from VLAN 1 to VLAN 2. If I assign an address in VLAN 2 manually to a device connected to the Procurves, everything works fine. I am able to reach both VLAN 1 and VLAN 2, but DHCP aquisition fails even if the device is connected directly to a port assigned to VLAN 2 on the SG300. The SG300 is running at Layer 3 currently also.
Here is a copy of the running config: -------------------------------------------------------------------------------------------------------------- switch4db24f#show running-config vlan database vlan 2 exit interface range gi8,gi16 switchport default-vlan tagged
I have my network with severals SG300 switches.I have one of them like my core switch working in layer 3 mode. With 2 vlans and vlan interfaces to each vlan.Everything is working ok.But now i have to connect one 3com unmanage switch that have host from vlan 1 and 2. How should i connect this switch to my Cisco sg300 switch?
Having issues waking NAS devices using a magic packet when using link aggregation on an SG300-28 switch.
Without link aggregation everything works fine so I know the magic packet is being generated correctly and the NAS device is correctly configured to wake. After configuring link aggregation the device does not wake. Have tried dynamic (LACP) and static link aggregation but neither allowed the device to wake? When the NAS is powered off, the ports in the LAG still show as being connected at 100M but it appears the magic packet is not being transmitted.
These are our first switches and seems like GUI is lot different than the online. Out intervlan routing is o not working. I am absolutely sure that I setup the switch in L3 mode since it allows me to create mutiple interfaces. I am hoping that this GUI issue is related to interVLAN routing.
Below is the blog I started for InterVlan issue [URL]
This is the link for online simulator and what I see in its IP tab. I know this switch is not SG300. [URL]
This is what I see on our switch.
Our switch version switchd64684#show version SW version 188.8.131.52 ( date 19-Jun-2011 time 18:10:49 ) Boot version 184.108.40.206 ( date 08-Apr-2010 time 16:37:57 ) HW version V01
I have SG300-28P that I am using as layer-3 switch. Recently I ran in to SG300-52 switch and even though loading same firmware doesn't give me option to do layer-3 switching. For SG-300 I see options in GUI to create vlan interfaces under IP information section, while SG300-52 has IP information option only under the management section.let me know if these are 2 different hardware types and L3 is not possible on SG300-52. If its possible to enable L3 switching on SG300-52?
i'm having some trouble setting up the correct NAT configuration of a Cisco 1921 router. The NAT is not working as I want - I think my configuration is wrong somewhere. All clients in 172.16.0.0/24 have the correct outgoing address of 220.127.116.11. But the NAT for 10.10.0.4 (and 10.10.0.5, 10.10.0.6) is partially broken: Ping and ssh from the outside world to 18.104.22.168 is "natted" to 10.10.0.4 and works as expected. But from inside (172.16.0.0/24) ssh to 22.214.171.124 should be "natted" to 10.10.0.4, but doesn't work (ping works). ssh from 172.16.0.0/24 to 10.10.0.4 (without doing NAT) works.
network design: =============== 172.16.0.0/16: network for normal use 192.168.64.0/24: network for specific clients and servers
I am configuring a pix 525,i just found out how to activate the subinterface on it so that's good,the box has a primary unit and secondary unit, both are connected from G0 to redundant switches,if i do a show failover, it says it's using the serial based lan failover, which is fine by me,however, do i need to create a single, regular interface.. or a redundant interface?,i.e. if i create a regular subinterface, will failover still apply to this interface?,or for failover to work, do i need to create a redundant interface (with a redundant id)? i do not seem to have the option to create a subinterface when adding a redundant interface.