lan aggregation

[ats1]

I have a network card with two ports (lan0 and lan1). how I can configure the aggregation between the lan0 and lan1?

[Matti_Kurkela]

You'll need APA (Auto Port Aggregation). In the latest releases of 11.31 it's built-in, but in older versions it's an optional, separately-licensed component.

On HP-UX 11.31, these commands would create lan900 as a simple active/passive (=failover) aggregate, composed of lan0 and lan1. The first command defines the aggregate, the second saves the settings to make them persistent.

nwmgr -a -S apa -c lan900 -A links=0,1 -A mode=LAN_MONITOR

nwmgr -s -S apa -A all --from cu --sa

If you want active/active (load-balancing) aggregation, you should choose either FEC_AUTO or LACP_AUTO mode instead of LAN_MONITOR, depending on what your network switch supports and is configured to allow.

FEC_AUTO = Fast EtherChannel = Cisco PAgP, Cisco's proprietary link aggregation method.

LACP_AUTO = the vendor-neutral IEEE 802.3ad standard method for link aggregation.

For more information on 11.31, see "man nwmgr" and "man nwmgr_apa". You can also use SMH to configure link aggregations.

For more information on all supported HP-UX versions, find APA Administrator's Guide on docs.hp.com.

MK

[Horia Chirculescu]

Hello,

Read the docs for Auto Port Aggregation:

http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?lang=en&cc=us&taskId=101&prodClassId=10008&contentType=SupportManual&docIndexId=64255&prodTypeId=18964&prodSeriesId=4248623

Best regards
Horia.

[Bijeesh]

Hi,
For HPUX 11.31, APA is free and can be downloaded from

https://h20392.www2.hp.com/portal/swdepot/displayProductInfo.do?productNumber=HPUX-APA

But for previous OS versions like 11v1,11v2
you need to purchase it.The link is given.

https://h20392.www2.hp.com/portal/swdepot/displayProductInfo.do?productNumber=J4240AA

[ats1]

i know that i can make an aggregation between two physical network card. i know it's possible. but actually i have only one network card with two ports. so is it possible to make an aggregation between the two ports(of the same card)?

[Horia Chirculescu]

Even if you have "one network card with two ports" as you said, actually there are 2 network chipsets in the same PCB.

One example is HP Gigabite Dual Network Card, p/n: NC7170

Best regards,
Horia.

[ats1]

so it's possible to do it with the two ports of the same card.?

[Torsten.]

Why not, but keep in mind this is less redundant.