HA on Software Appliance

Hi,
per default, the HA interface on a hardware appliance is eth3, which has obviously other MTU settings. According KnowledgeBase, Jumbo Frames are required on the sysnc interface.

[Hardware Appliance]
root # ip link show | grep mtu
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
5: eth3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 2000 qdisc mq state UP qlen 1000


I'm currently trying to run an active/passive cluster on a software appliance.
So, there is currently only eth2 for HA available.
Looking into standard interface settings on ASG, it it possible to change the MTU size. Looking into the HA menu, there is no possibility to adjust the MTU size.

[Software Appliance running on linux XEN]
root # ip link show | grep mtu
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000
4: eth2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000

So, what is the recommended way to change the MTU size?
Any other settings needs to be adjusted when using eth2 instead eth3 as sync interface?


Knowledge base article says: Page Status: Outdated
How to change the MTU on command line
Article Number: AKB000615




Thanks
Cheers,
ciscoman