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robertoberto (Roberto Bertó)
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User Since
May 2 2020, 3:31 AM (14 w, 5 d)

Recent Activity

May 15 2020

robertoberto created T2461: documentation firewall state .
May 15 2020, 4:32 AM · Restricted Project

May 12 2020

robertoberto added a comment to T2451: Cannot use !tcp or !tcp_udp while adding firewall rule.

same of

May 12 2020, 5:03 AM

May 11 2020

robertoberto created T2451: Cannot use !tcp or !tcp_udp while adding firewall rule.
May 11 2020, 11:25 PM

May 9 2020

robertoberto added a comment to T2404: change mtu .

I don't see any problem on user receive message telling him MTU is not accepted by OS when his commit
On Juniper it is very common case

May 9 2020, 5:09 PM · VyOS 1.3 Equuleus
robertoberto added a comment to T2404: change mtu .

My suggestion: if you do a MTU suggestor/validation should be a tool optional outsite configure

May 9 2020, 12:02 PM · VyOS 1.3 Equuleus

May 7 2020

robertoberto created T2430: cannot delete specific route static next-hop.
May 7 2020, 3:45 PM · VyOS 1.3 Equuleus
robertoberto added a comment to T2404: change mtu .

great work @thomas-mangin I was reading your code

May 7 2020, 10:39 AM · VyOS 1.3 Equuleus
robertoberto added a comment to T2404: change mtu .

Hardware vendor: Red Hat
Hardware model: OpenStack Compute
MTU should be max 1450

May 7 2020, 3:26 AM · VyOS 1.3 Equuleus

May 6 2020

robertoberto closed T2428: api set protocols static route fail as Invalid.
May 6 2020, 1:03 AM
robertoberto added a comment to T2428: api set protocols static route fail .

https://github.com/vycontrol/vycontrol/issues/27

May 6 2020, 12:42 AM
robertoberto created T2428: api set protocols static route fail .
May 6 2020, 12:36 AM

May 4 2020

robertoberto added a comment to T2404: change mtu .
In T2404#62721, @jjakob wrote:

@c-po is it possible to detect the exact networking setup used on the host? If not, I don't think that'll do any good, because the hypervisor is just that - a hypervisor. There can be many different types of networking. Like in this case, Openstack's SDN supports a lower MTU than a bridged or NATed connection with the same hypervisor would. The only reliable way is to detect the max MTU in some way (the kernel/device driver must know this, the question how can we read it) - the first step is to not touch the default MTU if the user doesn't set it.

May 4 2020, 3:22 PM · VyOS 1.3 Equuleus

May 3 2020

robertoberto added a comment to T2404: change mtu .

My suggestion:

  • if someone set a higher MTU than OS support, commit fail will be ok and that's OK, each vyos admin should know his OS limitations
May 3 2020, 8:18 PM · VyOS 1.3 Equuleus
robertoberto added a comment to T2404: change mtu .

Other ubuntu servers inside same openstack max mtu OS leave at 1450 too

May 3 2020, 8:15 PM · VyOS 1.3 Equuleus
robertoberto added a comment to T2404: change mtu .

I tried to google to find out how to discover max mtu an interface accept but not found.

I guess limitation is because we are using OpenStack KVM or the other guy is using VMware and they use some bytes to their SDN

May 3 2020, 8:11 PM · VyOS 1.3 Equuleus
robertoberto added a comment to T2404: change mtu .

I tried to google to find out how to discover max mtu an interface accept but not found.

May 3 2020, 8:10 PM · VyOS 1.3 Equuleus
robertoberto added a comment to T2404: change mtu .

An issue to change the MTU should not fail the whole interface change but just this one but the code does not not allow this easily. I will try to work on this.

May 3 2020, 7:47 PM · VyOS 1.3 Equuleus
robertoberto added a comment to T2404: change mtu .

vyos@vyos:~$ show version
Version: VyOS 1.3-rolling-202004230117
Release Train: equuleus

May 3 2020, 6:54 PM · VyOS 1.3 Equuleus
robertoberto added a comment to T2404: change mtu .

Here:

root@vyos:~# cat /sys/class/net/eth0/mtu
1450
root@vyos:~# echo 1500 > /sys/class/net/eth0/mtu
-bash: echo: write error: Invalid argument
root@vyos:~# echo 1460 > /sys/class/net/eth0/mtu
-bash: echo: write error: Invalid argument
root@vyos:~# echo 1440 > /sys/class/net/eth0/mtu
root@vyos:~# echo 1441 > /sys/class/net/eth0/mtu
root@vyos:~# echo 1442 > /sys/class/net/eth0/mtu
root@vyos:~# echo 1443 > /sys/class/net/eth0/mtu
root@vyos:~# echo 1449 > /sys/class/net/eth0/mtu
root@vyos:~# echo 1450 > /sys/class/net/eth0/mtu
root@vyos:~# echo 1460 > /sys/class/net/eth0/mtu
-bash: echo: write error: Invalid argument
root@vyos:~# echo 1455 > /sys/class/net/eth0/mtu
-bash: echo: write error: Invalid argument
root@vyos:~# echo 1453 > /sys/class/net/eth0/mtu
-bash: echo: write error: Invalid argument
root@vyos:~# echo 1452 > /sys/class/net/eth0/mtu
-bash: echo: write error: Invalid argument
root@vyos:~# echo 1451 > /sys/class/net/eth0/mtu
-bash: echo: write error: Invalid argument
root@vyos:~#

May 3 2020, 6:54 PM · VyOS 1.3 Equuleus
robertoberto added a comment to T2404: change mtu .

root@vyos:~# cat /sys/class/net/eth0/mtu
1450
root@vyos:~# echo 1500 > /sys/class/net/eth0/mtu
-bash: echo: write error: Invalid argument
root@vyos:~# echo 1460 > /sys/class/net/eth0/mtu
-bash: echo: write error: Invalid argument
root@vyos:~# echo 1440 > /sys/class/net/eth0/mtu
root@vyos:~# echo 1441 > /sys/class/net/eth0/mtu
root@vyos:~# echo 1442 > /sys/class/net/eth0/mtu
root@vyos:~# echo 1443 > /sys/class/net/eth0/mtu
root@vyos:~# echo 1449 > /sys/class/net/eth0/mtu
root@vyos:~# echo 1450 > /sys/class/net/eth0/mtu
root@vyos:~# echo 1460 > /sys/class/net/eth0/mtu
-bash: echo: write error: Invalid argument
root@vyos:~# echo 1455 > /sys/class/net/eth0/mtu
-bash: echo: write error: Invalid argument
root@vyos:~# echo 1453 > /sys/class/net/eth0/mtu
-bash: echo: write error: Invalid argument
root@vyos:~# echo 1452 > /sys/class/net/eth0/mtu
-bash: echo: write error: Invalid argument
root@vyos:~# echo 1451 > /sys/class/net/eth0/mtu
-bash: echo: write error: Invalid argument
root@vyos:~#

May 3 2020, 6:52 PM · VyOS 1.3 Equuleus

May 2 2020

robertoberto added a comment to T2404: change mtu .
In T2404#62515, @jjakob wrote:

@robertoberto issue (cannot change udp fragmentation-offload) is not the same as the original post (changing MTU out of range) so please create a separate task for it.

May 2 2020, 8:14 PM · VyOS 1.3 Equuleus
robertoberto created T2419: Cannot change udp-fragmentation-offload.
May 2 2020, 8:13 PM · VyOS 1.3 Equuleus
robertoberto added a comment to T2404: change mtu .

same here
root@vyos:~# ls -la /tmp/vyos.log.debug
-rw-r--r-- 1 vyos users 0 May 1 18:03 /tmp/vyos.log.debug
root@vyos:~# /sbin/ethtool -K eth0 ufo off
Cannot change udp-fragmentation-offload

May 2 2020, 1:23 PM · VyOS 1.3 Equuleus