05-01-2019 07:00 AM - edited 07-05-2021 10:18 AM
I have an RV340 connected to a SG350 and a SG300, all wired with Cat 6. The two AP581 ports are automatically LAG1, I have the two SG350 ports as LAG1. I have tried every setting possible and have yet to achieve 2.5Gbe with this access point.
05-01-2019 01:14 PM
Real bottleneck is how much traffic you can generate in a wireless cell. Based on how wireless works (half duplex + all other overhead with mgt/control frames), you do not come close to a 1Gbps throughput.
So more than 1Gbps uplink to a switch is not a requirement in most scenarios.
HTH
Rasika
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05-02-2019 06:46 AM
05-02-2019 08:53 AM
05-03-2019 06:05 AM
@patoberli wrote:
This is not achievable on the wireless though. With an 160 Mhz channel and a 4x4:4 client you can probably reach a maximum of ~900 Mbps.
From the WAP581 Datasheet:
Provides cost-effective 802.11ac Wave 2 connectivity with speeds up to 2.8 Gbps
Concurrent dual-band radio support offers up to 2.1 Gbps on a 5.0-GHz radio and 600 Mbps on a 2.4-GHz radio to use capacity and coverage most efficiently.
The Cisco WAP581 Wireless-AC Dual Radio Wave 2 Access Point with 2.5GbE LAN uses concurrent dual-band radio for improved coverage and user capacity. The 4 x 4 MU-MIMO technology on the 5.0-GHz radio and 3 x 3 MIMO on the 2.4-GHz radio allow the access point to run at maximum performance and deliver better user experience. Two Gigabit Ethernet LAN interfaces, one with 2.5 Gigabit Ethernet and the second with 1 Gigabit Ethernet with PoE facilitate flexible installation and reduce cabling and wiring costs.
So, you were saying...
@patoberli wrote:
The SG350 doesn't has multi-gigabit interfaces as far as I know, or is there now a model?
So your AP will connect with 1x 1 Gbps, or if you make an etherchannel, 2x 1 Gbps. That means, with two streams from two different clients, you could theoretically transmit 2 Gbps.
05-03-2019 06:06 AM
@patoberli wrote:
This is not achievable on the wireless though. With an 160 Mhz channel and a 4x4:4 client you can probably reach a maximum of ~900 Mbps.
From the WAP581 Datasheet:
Provides cost-effective 802.11ac Wave 2 connectivity with speeds up to 2.8 Gbps
Concurrent dual-band radio support offers up to 2.1 Gbps on a 5.0-GHz radio and 600 Mbps on a 2.4-GHz radio to use capacity and coverage most efficiently.
The Cisco WAP581 Wireless-AC Dual Radio Wave 2 Access Point with 2.5GbE LAN uses concurrent dual-band radio for improved coverage and user capacity. The 4 x 4 MU-MIMO technology on the 5.0-GHz radio and 3 x 3 MIMO on the 2.4-GHz radio allow the access point to run at maximum performance and deliver better user experience. Two Gigabit Ethernet LAN interfaces, one with 2.5 Gigabit Ethernet and the second with 1 Gigabit Ethernet with PoE facilitate flexible installation and reduce cabling and wiring costs.
So, you were saying...
@patoberli wrote:
The SG350 doesn't has multi-gigabit interfaces as far as I know, or is there now a model?
So your AP will connect with 1x 1 Gbps, or if you make an etherchannel, 2x 1 Gbps. That means, with two streams from two different clients, you could theoretically transmit 2 Gbps.
05-03-2019 06:20 AM
05-04-2019 08:04 AM
05-04-2019 08:31 AM
2.5Gbe refers to the wired port speed of the access point towards the switch which in turn should support Multigig speeds 2.5/5/10Gbps.
The only reason for that is that you can break 1Gbe speeds on one wire instead of using 2x 1Gbe cables towards your access points.
To achieve speeds over 1Gbe on wireless however you'd need to firstly be in an area where you have at least 4 adjacent channels on one of the UNII bands so you can run 4x4:4 at 160MHz channels where there is NO interference from other access points on those channel and connect multiple high speed Wi-Fi clients on that network (at least 3x3 radios on those) and another client on the 2.4GHz band and then the combined of those should break 1Gbe. Also make sure you configure the Radio with a minimum basic rate of at least 24Mbps for your management and control frames.
05-05-2019 07:37 AM
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