Switch settings show MTU size set of 9578 (Jumbo frames) by default. As per the instructions you shared in the link, I cannot ping any public DNS over MTU 1472. Think Public internet does not support Jumbo frames so MX would be limited by max 1500 but withing MS switches in our network, Jumbo frames should pass through? I think.
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Below alert showed up on Meraki dashboard >Alerts>Device Health. What would this refer to? and could it lead to the link /connection going down ? "Oversized or undersized packets detected." "Detecting a very high proportion of oversized or undersized packets on SWXX"
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I have always setup with a Mx or a Z1 device but a layer3 MS switch is capable of running on its own in Meraki network. I could create a network in Meraki based on ONLY a switch. But, can I use it as a flat switch ? I guess not. And as @alemabrahao mentions, where can I setup the uplink info as I can normally do on an mx/z1 device.
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As it is possible to create a network using just a switch without a security appliance, is it possible to feed that switch dirty internet and use it.
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For an enterprise license, you can get info on : Air Marshall events, Flows, URLs, Wireless event log, Switch event log, Appliance event log.Flows would give you more info on source, destination, MAC and protocol.
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Thanks for taking out time to talk to me. Its a great learning platform and answers by all contributors are greatly appreciated. BTW , I have a son not a daughter.
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I think device utilization in Summary Report is not the same as CPU utilization and as @ww already mentioned, only Support can see CPU utilization and it is not visible on Meraki Dashboard to users. Is there any API call which can provide such info?
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Actually, even after disabling load balancing and Active-Active Auto VPN , still MX-250s continue to show latency spikes on both ISPs at the same time for unknown reasons. No particular event is captured at the mentioned time which might point to this latency spike.
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It does actually, there are 10Gbps CWDM SFPs by Cisco. Its just Meraki has no mention of CWDM. https://www.cisco.com/c/en/us/products/collateral/interfaces-modules/transceiver-modules/datasheet-c78-734047.html
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Can the per day license be applied and used in an on demand use case? If we use an mx appliance for 3 weeks in 6 months then is it a possibility to use PDL model?
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And what is expiry time? and how long ? 5 minutes? so if preferred uplink fails still all existing traffic will use it i.e. no connection to internet till "expiry" i.e. no internet connectivity for 5 minutes?
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Checking with AWS it is identified that there are EC2 instances from some account which have theses ips.AWS cannot reveal the account holder or their location as per their policy. I have blocked the xxx.xxx.xxx.xxx/32 public ip in layer 7 rules (ip range section) but still see traffic visible on WAN internet pcap capture on Meraki Dashboard. How else could I block "Internet Protocol Version 4, Src: ec2-xxx.xxx.xxx.xxx.us-east-2.compute.amazonaws.com from hitting our MX. We do not have advanced security features option.
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