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Solved
100Mbps throughput on 1Gbps fiber connection
I'm running a throughput test with iperf between an M6100 with 2 physical fiber connections in a LAG configuration that run to a M4100 in a nearby building. I've checked the settings on both devices and see that everything is communicating at 1Gbps but I'm only getting 100Mbps. I have a laptop connected directly to 2/0/44 on the M6100 (vlan 1) from another laptop connected on 1/0/22 on the M4100 (vlan 1.) The M4100 is running 10.0.2.30 firmware and M6100 is on 11.0.0.31.
Previously, I was able to get 1Gbps with this configuration and haven't modified any of the speed settings though the firmware has been updated a couple of times since the original test. Unfortunately, the switches are in production so I'd like to limit the amount of rebooting if possible.
Alright, so there's something wrong with the 1Gbps NIC in one of the laptops. We hooked up a new USB-C NIC and are getting the advertised speeds. Thanks for the replies.
4 Replies
Would be interesting to see the SFP+ ports and related LAG config fragments.
Consider to get in touch with the Netgear support anyway...
M6100 Config
LLDP Remote Device Summary Local Interface RemID Chassis ID Port ID System Name --------- ------- -------------------- ------------------ ------------------ 1/0/25 155 CC:40:D0:37:80:A8 0/24 2/0/25 154 CC:40:D0:37:80:A8 0/23 interface lag 25 cos-queue min-bandwidth 0 2 0 0 0 0 0 description 'Building 25' vlan participation include 501-505,1030 vlan tagging 1,501-505,1030 Media STP Physical Physical Link Loop Partner Flow Intf Type Mode Mode Status Status Status Control ------ ----------- ------ ---------- ---------- -------- -------- ------------ 1/0/25 1000LX DIS Auto 1000 Full Up On 2/0/25 1000LX DIS Auto 1000 Full Up On lag 25 FWD Up NA
M4100 Config
LLDP Remote Device Summary Local Interface RemID Chassis ID Port ID System Name ------- ------- -------------------- ------------------ ------------------ 0/23 1 A0:63:91:82:26:98 2/0/25 NetGear M6100 0/24 2 A0:63:91:82:26:98 1/0/25 NetGear M6100 interface lag 1 description 'Uplink to CORE' ip dhcp snooping trust ip dhcp snooping log-invalid vlan participation include 501-502,504-505,1030 vlan tagging 1,501-502,504-505,1030 exit Media STP Physical Physical Link Loop Partner Flow Intf Type Mode Mode Status Status Status Control ------ ----------- ------ ---------- ---------- -------- -------- ------------ 0/7 1000TX FWD Auto 1000 Full Up On 0/8 1000TX FWD Auto 1000 Full Up On 0/9 1000TX FWD Auto 1000 Full Up On 0/10 1000TX FWD Auto 1000 Full Up On 0/23 1000BASE-LX DIS Auto 1000 Full Up Off 0/24 1000BASE-LX DIS Auto 1000 Full Up Off lag 1 FWD Up OffI removed cos-queue min-bandwidth from the global config. Will test again and report back.
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