TIL: no impact when changing physical port in Virtual Switch in a VSX Environment

Christian_Froem — Tue, 26 Aug 2025 05:47:11 GMT

Hello,

(as I didn't found any details to this subject, I want to document it for others.)

We have Virtual-Switches in an VSX-Environment, and on VSwitch I had to change the physical port from bond1 to bond4. The question was, how the impact on running sessions and traffic would be.

The interfaces in the VSwitch looked like this before:

[Expert@dev-mod1-mgmt:4]# ifconfig | egrep -v -e "^(\s|$)" bond1.231 Link encap:Ethernet HWaddr 00:1C:7F:FD:F9:99 br4 Link encap:Ethernet HWaddr 00:12:C1:02:D0:05 lo Link encap:Local Loopback Media:unknown wrpj64 Link encap:Ethernet HWaddr 00:12:C1:02:D0:07 wrpj129 Link encap:Ethernet HWaddr 00:12:C1:02:D0:05 wrpj512 Link encap:Ethernet HWaddr 00:12:C1:02:D0:11

After the change:

[Expert@dev-mod1-mgmt:4]# ifconfig | egrep -v -e "^(\s|$)" bond4.231 Link encap:Ethernet HWaddr 00:1C:7F:FD:C9:C7 br4 Link encap:Ethernet HWaddr 00:12:C1:02:D0:05 lo Link encap:Local Loopback Media:unknown wrpj64 Link encap:Ethernet HWaddr 00:12:C1:02:D0:07 wrpj129 Link encap:Ethernet HWaddr 00:12:C1:02:D0:05 wrpj512 Link encap:Ethernet HWaddr 00:12:C1:02:D0:11

The change was done via SmartConsole, in the Main-CMA.

So the bond-interface changed, of course the mac-address of the VLAN-Interface (as the underlying interface changed), but nothing else.

This change had no impact. Neither on running sessions, nor pings. It just went through without any loss or downtime.

Regards, Christian

Re: TIL: no impact when changing physical port in Virtual Switch in a VSX Environment

_Val_ — Tue, 26 Aug 2025 07:13:16 GMT

Thanks for sharing, @Christian_Froem

topic Re: TIL: no impact when changing physical port in Virtual Switch in a VSX Environment in Firewall and Security Management

TIL: no impact when changing physical port in Virtual Switch in a VSX Environment

Re: TIL: no impact when changing physical port in Virtual Switch in a VSX Environment