Questions tagged [cisco-sg300]

For questions about or involving the Cisco SG300 switch.

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2answers
51 views

How can I connect (stack) two Cisco SG350 together?

I am building a storage network, physically separated from the data network. I have two Cisco SG350-28P-K9 V02 switches: One on the basement. Has two NAS, two ESX servers. (in use) One on the 4th ...
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1answer
22 views

Connect 2 VLANs on Cisco SG300 with cable

I have a Cisco SG300 with 2 VLANs enabled, half the switch ports are on one VLAN, half is on the other. Both VLANs use the same subnet. I want traffic to travel between the 2 VLANs. I thought the 2 ...
3
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1answer
29 views

SG3xx Password Reset/Recovery

Trying to reset a password for a number of switches I have. Didn't save the text file I had jotted it down in....of course. Connected via serial, but cannot seem to locate any concise info on ...
2
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1answer
2k views

How to use console serial cable for cisco SG300 switch?

I have cisco SG300-28P series managed switch. I'd like to change default ip which is (192.168.1.254). When I am trying to connect the switch using ethernet cable it is shown me there is no access, ...
2
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1answer
859 views

Really basic SG300 VLAN setup not working

My understanding of VLANs may need improved, but isn't the idea that you can run multiple LANs at layer 2 level over the same router if VLANs are setup correctly on the SG300? If so, I fail to see how ...
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2answers
570 views

How to disable ICMP type 9 (router advertisement) on SG300

Oddly enough our cisco SG300's are making "Router Announcements"/"Mobile IP Advertisements" (ICMP type 9) via IPv4 (not IPv6). They are sourced from the IP/MAC of the switch and destined for 224.0.0.1/...
2
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4answers
775 views

Reducing broadcast traffic on Cisco SG300

I have a Cisco SG300 Small business switch, and the GUI interface is creating a lot of broadcast traffic: Source IP (The GUI IP): 172.16.xx.254:5353, Destination IP (Broadcast) 224.0.0.251:5353 I ...
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2answers
5k views

Routing on SG300 with VLANs

My setup: I receive from my ISP a /24 public IP subnet (e.g: 20.20.20.0/24). Some of our departments want to have full control over their public IPs, so I split it up to several /27 subnets. For ...
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4answers
1k views

Cisco SG300 as core switch, Router needed for separated vlans?

We will get a /24 public IP address range, and I have to seperate it into few departments. So my plan is to split the /24 network into several /27 networks. I wanted to use a Cisco SG300-10SFP to ...
3
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2answers
3k views

SG300 - no traffic across trunk

This one's got me banging my head against a wall... likely a simple answer, but I've tried everything I know. I heard the internet's a smart place. :) Have an SG300-28MPP connected to a clients' ...
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3answers
4k views

STP and LAG Problems

I'm having some trouble with STP on our network. I have created a 3 tier network made up of Dell and Cisco switches. The topology is as follows: The core consists of two Dell N4032 10Gbps switches in ...
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2answers
273 views

Is a connect between Cisco SG300 and Cisco ISR 2921 a good choice for cross connect?

We use a Cisco SG300 for small routing issues in one Part of our Network, now we want to create a cross connect between two locations. Between both Location we use a dark fibre from a provider. On the ...
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3answers
3k views

How can I expand my office network with a SG300-28P switch?

At this moment, I have a SG300-28P switch, but it's running out of ports. I want to order another SG300-28p, but I have no idea what modules and cables I need to stack those switches. Does anyone ...
6
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1answer
475 views

Cisco SG300-52 SNMP ifInOctets Values Unreasonable

On the SG300-52, I've noticed that SNMP monitoring of LAGs versus regular switch ports give incorrect (way too large and unrealistic) values for the octets transferred. For simplicities sake, let's ...