Mako with Breakout Cables


Userlevel 4
We had a customer request where they want all server ports (ports facing servers) to be a trunk with 2 VLANs. One VLAN untagged (lets make it VLAN10) and one VLAN tagged (lets make it VLAN500).

On top of this they want to use breakout cables for ports swp1-12. This means each swp will look like this-
swp1s0
swp1s1
swp1s2
swp1s3

They also wanted to just do this on the box (no Ansible, Puppet, etc).

Here was my idea for two bridge types

bridge in vlan-aware mode

auto br0
iface br0
bridge-ports regex swp[1-9]s[0-3]|swp[1-3][0-2]s[0-3]
bridge-vlan-aware yes
bridge-stp on
% for interface in range(1,13):
% for breakout in range(0,4):
auto swp${interface}s${breakout}
iface swp${interface}s${breakout}
mtu 9000
bridge-pvid 10
bridge-vids 500
alias server port
% endfor
% endfor

bridges in traditional mode

% for interface in range(1,13):
% for breakout in range(0,4):
auto swp${interface}s${breakout}
iface swp${interface}s${breakout}
mtu 9000
% endfor
% endfor
auto vlan10
iface vlan10
post-up brctl addbr vlan10
% for interface in range(1,13):
% for breakout in range(0,4):
post-up brctl addif vlan10 swp${interface}s${breakout}
post-down brctl delif vlan10 swp${interface}s${breakout}
% endfor
% endfor
post-down brctl delbr vlan10
% for interface in range(1,13):
% for breakout in range(0,4):
auto swp${interface}s${breakout}.500
iface swp${interface}s${breakout}.500
mtu 9000
% endfor
% endfor
auto vlan500
iface vlan500
post-up brctl addbr vlan500
% for interface in range(1,13):
% for breakout in range(0,4):
post-up brctl addif vlan500 swp${interface}s${breakout}.500
post-down brctl delif vlan500 swp${interface}s${breakout}.500
% endfor
% endfor
post-down brctl delbr vlan500

2 replies

Userlevel 4
I would probably do it differently for traditional bridge, this is cool! % for interface in range(1,13): % for breakout in range(0,4): auto swp${interface}s${breakout} iface swp${interface}s${breakout} mtu 9000 auto swp${interface}s${breakout}.500 iface swp${interface}s${breakout}.500 mtu 9000 % endfor % endfor auto vlan10 iface vlan10 bridge-ports regex swp[1-9]s[0-3]|swp1[0-2]s[0-3] auto vlan500 iface vlan500 bridge-ports regex swp[1-9]s[0-3].500|swp1[0-2]s[0-3].500
Userlevel 4
Did you try that on a switch yet ? I had done the same thing but.... you will see

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