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10GB SFP ports, limiting 1GB - DELL N3048 - DELL N4064
Hello friends, I'm having a slightly strange problem with my switches, and I'd like to know if you've experienced something similar.
I currently have a Switch N3048, which acts as a "Core" of the network. It reaches the network gateway to the internet via SFP+, which is trading perfectly at 10GB.
My N3048 also uplinks with an N4064, creating a LAG of two 10GB Ethernet ports, that is, forming 20GB.
The problem occurs when I do an iperf from my server that is connected to the N4000, to the server that is connected to my gateway.
Note: my server plugged into the N4000 negotiates at 10GB and the destination server also negotiates at 10GB.
However, in iperf, I always get results like 1GB of bandwidth.
I've tested basically everything, I've disassembled the LAGs, changed the tranceivers, but it seems that everything that comes from Ethernet connections, and then passes through the SFP+ ports of my N3000, is limited to 1GB.
Another test I did was to take another SFP+ device, plug it into the N3000, and test the bandwidth for my destination server, then the 10GB bandwidth worked. However, everything that comes from the "Ethernet" network trading at 10GB, as is the case with my server, is limited to 1GB.
I've already updated the Firmware, among other procedures, but nothing seems to solve it.
DELL-Joey C
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February 28th, 2024 07:39
Hi,
We probably may need the support logs from both the switches, to check if there is any configuration issue. It might be a compatibility issue, do you have the 10G cable model# that you used? When you connect the 10GbE, can you do a show interface to check what speed is it on?
gmmnt
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February 28th, 2024 17:48
@DELL-Joey C
On both switches I see the ports negotiate correctly at 10GB. However, the traffic still does not exceed 1GB.
Channel Ports Ch-Type Hash Type Min-links Local Prf Rx Util Tx Util
------- ----------------------------- -------- --------- --------- --------- --------- ---------
Po50 Active: Te1/1/1, Te2/1/1 Static 7 1 Disabled 0 0
Hash Algorithm Type
1 - Source MAC, VLAN, EtherType, source module and port Id
2 - Destination MAC, VLAN, EtherType, source module and port Id
3 - Source IP and source TCP/UDP port
4 - Destination IP and destination TCP/UDP port
5 - Source/Destination MAC, VLAN, EtherType, source MODID/port
6 - Source/Destination IP and source/destination TCP/UDP port
7 - Enhanced hashing mode
FTZ-N3000-CORE-ANGL#show interfaces tengigabitethernet 1/1/1
Interface Name................................. Te1/1/1
SOC Hardware Info.............................. BCM56340_A0
Link Status.................................... Up /None
Keepalive Enabled.............................. FALSE
Err-disable Cause.............................. None
MTU Size....................................... 9216
Port Mode [Duplex]............................. Full
Port Speed..................................... 10000
Link Debounce Flaps............................ 0
Auto-Negotation Status......................... Auto
Burned In MAC Address.......................... E4F0.04DA.3502
L3 MAC Address................................. E4F0.04DA.3505
Sample Load Interval........................... 300
Received Input Rate Bits/Sec................... 14840
Received Input Rate Packets/Sec................ 2
Transmitted Input Rate Bits/Sec................ 8760
Transmitted Input Rate Packets/Sec : .......... 9
Total frames received without errors........... 882132
Unicast frames received........................ 872768
Multicast frames received...................... 4973
Broadcast frames received...................... 4391
Total frames received with MAC errors.......... 0
Jabbers received............................... 0
Fragments/Undersize received................... 0
Alignment errors............................... 0
FCS errors..................................... 0
Overruns....................................... 0
Total received frames not forwarded............ 2
Total frames transmitted successfully.......... 3459026
Unicast frames transmitted..................... 2789765
Multicast frames transmitted................... 465584
Broadcast frames transmitted................... 203677
Transmit frames discarded...................... 0
Total transmit errors.......................... 0
Total transmit frames discarded................ 0
Single collision frames........................ 0
Multiple collision frames...................... 0
Excessive collision frames..................... 0
FTZ-N3000-CORE-ANGL#show interfaces tengigabitethernet 2/1/1
Interface Name................................. Te2/1/1
SOC Hardware Info.............................. BCM56340_A0
Link Status.................................... Up /None
Keepalive Enabled.............................. FALSE
Err-disable Cause.............................. None
MTU Size....................................... 9216
Port Mode [Duplex]............................. Full
Port Speed..................................... 10000
Link Debounce Flaps............................ 0
Auto-Negotation Status......................... Auto
Burned In MAC Address.......................... E4F0.04DA.3502
L3 MAC Address................................. E4F0.04DA.3505
Sample Load Interval........................... 300
Received Input Rate Bits/Sec................... 1736
Received Input Rate Packets/Sec................ 2
Transmitted Input Rate Bits/Sec................ 30600
Transmitted Input Rate Packets/Sec : .......... 46
Total frames received without errors........... 354735
Unicast frames received........................ 313438
Multicast frames received...................... 40855
Broadcast frames received...................... 442
Total frames received with MAC errors.......... 0
FTZ-N3000-CORE-ANGL#
################
FTZ-TOR-ANGL#show running-config interface tengigabitethernet 1/0/47
channel-group 47 mode on
description "UPLINK-N3000-P1"
FTZ-TOR-ANGL#show running-config interface port-channel 47
description "LAG-UPLINK-N3000"
switchport mode trunk
FTZ-TOR-ANGL#show interfaces tengigabitethernet 1/0/47
Interface Name................................. Te1/0/47
SOC Hardware Info.............................. BCM56846_A1
Link Status.................................... Up /None
Keepalive Enabled.............................. FALSE
Err-disable Cause.............................. None
MTU Size....................................... 9216
Port Mode [Duplex]............................. Full
Port Speed..................................... 10000
Link Debounce Flaps............................ 0
Auto-Negotation Status......................... Auto
Burned In MAC Address.......................... 684F.6430.81C7
L3 MAC Address................................. 684F.6430.81CA
Sample Load Interval........................... 300
Received Input Rate Bits/Sec................... 9240
Received Input Rate Packets/Sec................ 11
Transmitted Input Rate Bits/Sec................ 12464
Transmitted Input Rate Packets/Sec : .......... 3
Total frames received without errors........... 46842174
Unicast frames received........................ 27008435
Multicast frames received...................... 6545089
Broadcast frames received...................... 13288650
Total frames received with MAC errors.......... 3
FTZ-TOR-ANGL#show interfaces tengigabitethernet 2/0/47
Interface Name................................. Te2/0/47
SOC Hardware Info.............................. BCM56846_A1
Link Status.................................... Up /None
Keepalive Enabled.............................. FALSE
Err-disable Cause.............................. None
MTU Size....................................... 9216
Port Mode [Duplex]............................. Full
Port Speed..................................... 10000
Link Debounce Flaps............................ 0
Auto-Negotation Status......................... Auto
Burned In MAC Address.......................... 684F.6430.81C7
L3 MAC Address................................. 684F.6430.81CA
Sample Load Interval........................... 300
Received Input Rate Bits/Sec................... 27664
Received Input Rate Packets/Sec................ 41
Transmitted Input Rate Bits/Sec................ 1720
Transmitted Input Rate Packets/Sec : .......... 2
Total frames received without errors........... 40829143
Unicast frames received........................ 16126442
Multicast frames received...................... 8344596
Broadcast frames received...................... 16358105
Total frames received with MAC errors.......... 0
Jabbers received............................... 0
FTZ-TOR-ANGL#show interfaces status port-channel 47
Port Description
Channel
------- ------------------------------
Po47 LAG-UPLINK-N3000
Operational State.............................. Up
Admin Mode..................................... Enabled
Port Channel Flap Count........................ 16
Member Device/ Port Port Flap
Ports Timeout Speed Active Count
--------- ------------- ------ ------ ------
Te1/0/47 actor/long 10000 True 18
partner/long
Te2/0/47 actor/long 10000 True 10
partner/long
gmmnt
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February 28th, 2024 17:53
I have tech support for both switches, how can I send it?
The community platform has a character limit.
DELL-Chris H
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February 28th, 2024 18:26
Gmmnt,
The page here will walk you though the process of uploading the files directly to your Service Request (SR), and in the meantime I will private message you your SR #.
gmmnt
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February 29th, 2024 12:38
Hello! Files sent! Thanks!