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Morta

Member

Registered: 2019-07-07

Posts: 660

A made a bridge from two 10Gbps Ports but speedtest give me 10Gbps

Hi I made a bridge from a Intel Card with 2x10Gbps Ports

[morta@5erver ~]$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: enp3s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
    link/ether 04:d9:f5:bc:8f:c6 brd ff:ff:ff:ff:ff:ff
3: enp4s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
    link/ether 04:d9:f5:bc:8f:c7 brd ff:ff:ff:ff:ff:ff
4: enp5s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 04:d9:f5:bc:8f:c8 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.2/24 brd 192.168.1.255 scope global enp5s0
       valid_lft forever preferred_lft forever
5: enp6s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
    link/ether 04:d9:f5:bc:8f:c9 brd ff:ff:ff:ff:ff:ff
6: enp2s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master br0 state UP group default qlen 1000
    link/ether 98:b7:85:89:7e:f8 brd ff:ff:ff:ff:ff:ff
7: enp2s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master br0 state UP group default qlen 1000
    link/ether 98:b7:85:89:7e:f9 brd ff:ff:ff:ff:ff:ff
8: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 2e:cc:61:f0:dd:09 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.100/32 scope global noprefixroute br0
       valid_lft forever preferred_lft forever
    inet 192.168.1.100/24 brd 192.168.1.255 scope global dynamic noprefixroute br0
       valid_lft 6961sec preferred_lft 6961sec
    inet6 2a02:XXX:a774::2000/128 scope global dadfailed tentative noprefixroute 
       valid_lft forever preferred_lft forever
    inet6 2a02:XXX:a774:0:ba10:850:ddda:275/64 scope global dynamic noprefixroute 
       valid_lft 86178sec preferred_lft 14178sec
    inet6 fe80::15f:5f3f:608b:8acf/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
9: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default 
    link/ether 02:42:90:06:46:df brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever
    inet6 fd00::1/80 scope global tentative 
       valid_lft forever preferred_lft forever
    inet6 fe80::1/64 scope link tentative 
       valid_lft forever preferred_lft forever
10: br-abac02be342e: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default 
    link/ether 02:42:30:80:60:51 brd ff:ff:ff:ff:ff:ff
    inet 172.18.0.1/16 brd 172.18.255.255 scope global br-abac02be342e
       valid_lft forever preferred_lft forever
    inet6 fd00:dead:beef::1/48 scope global tentative 
       valid_lft forever preferred_lft forever
    inet6 fe80::1/64 scope link tentative 
       valid_lft forever preferred_lft forever

Why the speedtest give me only 10 Gbps instead of 20 Gbps?

Slithery

Administrator

From: Norfolk, UK

Registered: 2013-12-01

Posts: 5,776

Re: A made a bridge from two 10Gbps Ports but speedtest give me 10Gbps

What speedtest?

How much bandwidth does the other end have?

---

No, it didn't "fix" anything. It just shifted the brokeness one space to the right. - jasonwryan
Closing -- for deletion; Banning -- for muppetry. - jasonwryan

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Morta

Member

Registered: 2019-07-07

Posts: 660

Re: A made a bridge from two 10Gbps Ports but speedtest give me 10Gbps

ookla CLI speedtest to server 43030. Has a 100 Gbps uplink from my isp (init7)

Morta

Member

Registered: 2019-07-07

Posts: 660

Re: A made a bridge from two 10Gbps Ports but speedtest give me 10Gbps

Also strange behaviour with my OPNsense router if on both side is a bridge the network goes down. I took one of the ports out of the router bridge. No more isssue but still 10 Gbps

Koatao

Member

Registered: 2018-08-30

Posts: 98

Re: A made a bridge from two 10Gbps Ports but speedtest give me 10Gbps

Hello,
I think you misunderstood what a bridge is.
A bridge is used to connect two ore more physical LANs together at a layer 2 level as if they were part of one LAN.
All the ports part of a same bridge can be seen as ports of a same network switch.
Of course if the two ports on your arch system are part of a same bridge and the two respective ports on the router are also part of a same bridge you create a loop. If no protocols (like STP, LACP, SPB,...) are in place to break the loop, your network is going down (broadcast storm).

What you want to do is a bond between your network interfaces.
https://access.redhat.com/documentation … networking

-thc

Member

Registered: 2017-03-15

Posts: 775

Re: A made a bridge from two 10Gbps Ports but speedtest give me 10Gbps

On top of the wrong concept - even if Morta manages to setup a working link aggregation via bond interface it's IMHO impossible for a (single IP connection) speedtest to gain more than 10 GBit. Only 2 or more simultaneous IP connections distributed between the slave interfaces may reach 20 GBit throughput in total.

Last edited by -thc (2022-11-14 08:39:58)

Morta

Member

Registered: 2019-07-07

Posts: 660

Re: A made a bridge from two 10Gbps Ports but speedtest give me 10Gbps

Thanks for the inputs. I will change to bond interface. It’s ok if the speedtest is only 10 Gbps. I want more speed for my BitTorrent client. I know it’s only theoretically  to reach more than 10 Gbps on a Torrent.

Morta

Member

Registered: 2019-07-07

Posts: 660

Re: A made a bridge from two 10Gbps Ports but speedtest give me 10Gbps

As Information. I got 13 Gbps over bond with single thread CLI speedtest and no more loop with the bridge of the router