I have 20 Aruba Instant IAPs with a HP 2530-48G POE switch to power them. They are connected to a Cisco SG300-52 which is my main MDF switch. I have two other SG300-52 IDF switches connected to the MDF SG300.
What happens is that users start complaining about wireless access problems. I am unable to get access to the web page of the Aruba instant controller. I try pinging the instant controller and the ping times are very high and some time out completely.
In the past, I tracked this down to a room we have with 20 computers in it. When I disconnect the IDF they are connected to, the ping times come back to normal. I then restarted those computers, connected the IDF SG300 back to the rest of the network and things stayed fine.
This has happened twice in the past 8 months. It's happening (sort of) again now. Right now, ping times to my aruba APs aren't as bad as the other two times, but still having some high ping times and some timing out.
On my HP switch, it says that there are "excessive broadcasts detected on port 24". Port 24 is my uplink to my main SG300 MDF switch. It said this error the other two times also.
What I'm wondering is what I can do on the SG300 switches to track down excessive broadcasts? I wish they had an alert like the HP did.
I do see the SG300s under security have "storm control". I have searched and I found how to disable it but want to know from you guys if there is anything I should be aware of before enabling that. Here are my questions:
1) Any reason NOT to enable it on all ports
2) Which of the following types of storm control should I enable:
• Unknown Unicast, Multicast & Broadcast — Click this option if you do not know the type of frame the port receives. This option applies the threshold to all incoming frames.
• Multicast & Broadcast — Click this option so the switch only applies the threshold to multicast and broadcast frames.
• Broadcast Only — Click this option so the switch only applies the threshold to broadcast frames.
Sorry for the long post. Let me know if there is anything else you need to know.
Thanks as always for the help!
What happens is that users start complaining about wireless access problems. I am unable to get access to the web page of the Aruba instant controller. I try pinging the instant controller and the ping times are very high and some time out completely.
In the past, I tracked this down to a room we have with 20 computers in it. When I disconnect the IDF they are connected to, the ping times come back to normal. I then restarted those computers, connected the IDF SG300 back to the rest of the network and things stayed fine.
This has happened twice in the past 8 months. It's happening (sort of) again now. Right now, ping times to my aruba APs aren't as bad as the other two times, but still having some high ping times and some timing out.
On my HP switch, it says that there are "excessive broadcasts detected on port 24". Port 24 is my uplink to my main SG300 MDF switch. It said this error the other two times also.
What I'm wondering is what I can do on the SG300 switches to track down excessive broadcasts? I wish they had an alert like the HP did.
I do see the SG300s under security have "storm control". I have searched and I found how to disable it but want to know from you guys if there is anything I should be aware of before enabling that. Here are my questions:
1) Any reason NOT to enable it on all ports
2) Which of the following types of storm control should I enable:
• Unknown Unicast, Multicast & Broadcast — Click this option if you do not know the type of frame the port receives. This option applies the threshold to all incoming frames.
• Multicast & Broadcast — Click this option so the switch only applies the threshold to multicast and broadcast frames.
• Broadcast Only — Click this option so the switch only applies the threshold to broadcast frames.
Sorry for the long post. Let me know if there is anything else you need to know.
Thanks as always for the help!