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January 9th, 2025 03:26
Dell Switch S5048F configuration issues with 100G interefaces
I am setting up a 4 node cluster with a private 100G with Dell S5048F switch.
Here is the version information of the switch
=============
dellswitch5048> show version
Dell EMC Real Time Operating System Software
Dell EMC Operating System Version: 2.0
Dell EMC Application Software Version: 9.12(1.0)
Copyright (c) 1999-2017 by Dell Inc. All Rights Reserved.
Build Time: Tue Oct 10 08:19:32 2017
Build Path: /build/build02/SW/SRC
Dell EMC Networking OS uptime is 2 hour(s), 38 minute(s)
System image file is "system://A"
System Type: S5048F-ON
Control Processor: Intel Rangeley with 3 Gbytes (3203268608 bytes) of memory, c.
16G bytes of boot flash memory.
1 54-port TE/TF/FO/FI/HU G (S5048F-ON)
48 Twenty Five GigabitEthernet/IEEE 802.3 interface(s)
6 Hundred GigabitEthernet/IEEE 802.3 interface(s)
==========
Media inventory information
dellswitch5048>show inventory media
Slot Port Type Media Serial Number Dell Qualid
--------------------------------------------------------------------------------
1 1 Media not present or accessible
1 2 Media not present or accessible
1 3 Media not present or accessible
1 4 Media not present or accessible
1 5 Media not present or accessible
1 6 Media not present or accessible
1 7 Media not present or accessible
1 8 Media not present or accessible
1 9 Media not present or accessible
1 10 Media not present or accessible
1 11 Media not present or accessible
1 12 Media not present or accessible
1 13 Media not present or accessible
1 14 Media not present or accessible
1 15 Media not present or accessible
1 16 Media not present or accessible
1 17 Media not present or accessible
1 18 Media not present or accessible
1 19 Media not present or accessible
1 20 Media not present or accessible
1 21 Media not present or accessible
1 22 Media not present or accessible
1 23 Media not present or accessible
1 24 Media not present or accessible
1 25 Media not present or accessible
1 26 Media not present or accessible
1 27 Media not present or accessible
1 28 Media not present or accessible
1 29 Media not present or accessible
1 30 Media not present or accessible
1 31 Media not present or accessible
1 32 Media not present or accessible
1 33 Media not present or accessible
1 34 Media not present or accessible
1 35 Media not present or accessible
1 36 Media not present or accessible
1 37 Media not present or accessible
1 38 Media not present or accessible
1 39 Media not present or accessible
1 40 Media not present or accessible
1 41 Media not present or accessible
1 42 Media not present or accessible
1 43 Media not present or accessible
1 44 Media not present or accessible
1 45 Media not present or accessible
1 46 Media not present or accessible
1 47 Media not present or accessible
1 48 Media not present or accessible
1 49 Media not present or accessible
1 50 Media not present or accessible
1 51 QSFP28 100GBASE-CR4-2M MT2110VB03268 No
1 52 QSFP28 100GBASE-CR4-2M MT1952VB01486 No
1 53 QSFP28 100GBASE-CR4-1M MT2112VB01680 No
1 54 QSFP28 100GBASE-CR4-1M MT2112VB01596 No
Here is the configuration
=============
dellswitch5048(conf-if-range-hu-1/51-1/54)#show config
!
interface hundredGigE 1/51
no ip address
mtu 9000
switchport
no shutdown
!
interface hundredGigE 1/52
no ip address
mtu 9000
switchport
no shutdown
!
interface hundredGigE 1/53
no ip address
mtu 9000
switchport
no shutdown
!
interface hundredGigE 1/54
no ip address
mtu 9000
switchport
dellswitch5048(conf-if-range-hu-1/51-1/54)#
================
WIth this configuration, when I run iperf3 to look at the bandwidth, I am seeing only 210 Kbps between 2 hosts using the private link. If I use the public interface (which is a Gbps interface), I can see the 1 Gbps bitrate.
What am I missing in the configuration? Please let me know.
Thanks in advance
==================
iperf3 -B 192.168.1.4 -c 192.168.1.2 -V -b 10G
iperf 3.16
Linux host-titanite-19db 6.8.0-51-generic #52-Ubuntu SMP PREEMPT_DYNAMIC Thu Dec 5 13:09:44 UTC 2024 x86_64
Control connection MSS 8948
Time: Thu, 09 Jan 2025 00:47:22 GMT
Connecting to host 192.168.1.2, port 5201
Cookie: qijwrzlosg4mrqcdu6dk6trwudzvat2lkn6d
TCP MSS: 8948 (default)
Target Bitrate: 10000000000
[ 5] local 192.168.1.4 port 57163 connected to 192.168.1.2 port 5201
Starting Test: protocol: TCP, 1 streams, 131072 byte blocks, omitting 0 seconds, 10 second test, tos 0
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 256 KBytes 2.10 Mbits/sec 7 8.74 KBytes
[ 5] 1.00-2.00 sec 0.00 Bytes 0.00 bits/sec 1 8.74 KBytes
[ 5] 2.00-3.00 sec 0.00 Bytes 0.00 bits/sec 0 8.74 KBytes
[ 5] 3.00-4.00 sec 0.00 Bytes 0.00 bits/sec 1 8.74 KBytes
[ 5] 4.00-5.00 sec 0.00 Bytes 0.00 bits/sec 0 8.74 KBytes
[ 5] 5.00-6.00 sec 0.00 Bytes 0.00 bits/sec 0 8.74 KBytes
[ 5] 6.00-7.00 sec 0.00 Bytes 0.00 bits/sec 1 8.74 KBytes
[ 5] 7.00-8.00 sec 0.00 Bytes 0.00 bits/sec 0 8.74 KBytes
[ 5] 8.00-9.00 sec 0.00 Bytes 0.00 bits/sec 0 8.74 KBytes
[ 5] 9.00-10.00 sec 0.00 Bytes 0.00 bits/sec 0 8.74 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
Test Complete. Summary Results:
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 256 KBytes 210 Kbits/sec 10 sender
[ 5] 0.00-10.04 sec 0.00 Bytes 0.00 bits/sec receiver
CPU Utilization: local/sender 0.5% (0.0%u/0.5%s), remote/receiver 0.0% (0.0%u/0.0%s)
snd_tcp_congestion cubic
rcv_tcp_congestion cubic
iperf Done.
=====================
vengai
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5 Posts
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January 13th, 2025 05:57
Thanks. Resolved the issue by recreating config
DELL-Erman O
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January 9th, 2025 11:13
Hello,
Unfortunately I can't help you with the configuration support. But I believe our community can help. I can only recommend you to take a look at the following in general. I would
show spanning-tree.show vlan.show interface <interface_name>.show interface <interface_name> mtu.show lacp.vengai
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January 10th, 2025 01:47
Thanks. I already configured it (as shown above) and wanted to know what the issues that can cause this. Will see if others can chime in.